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Monday, April 28, 2008
Wednesday, April 23, 2008
Transfer disk to disk
You have a 40 GB disk, and you want to transfer its content to a newly purchased disk with a larger capacity?It is possible to transfer the contents of the first to the second disk with a disk image. The software Norton Ghost Chargeable, is the reference in the matter, but the following software, [...]
NO SIGNAL is displayed on the screen
When you turn on your PC and monitor (screen), it displays NO SIGNAL (or french No Signal) or the screen remains desperately black.AssumptionsThe cable that connects the monitor and the CPU may not be connected (or even unplugged), or damaged. Check connections.If the computer bippe once at boot time, there is a strong chance that [...]
Problem Nvidia graphics card
Si votre carte graphique de marque Nvidia vous pose des problèmes, il est conseillé de se rendre sur le site du constructeur et de télécharger la dernière version du pilote correspondant au modèle de votre carte vidéo :http://www.nvidia.fr/page/drivers.htmlIl est possible de diagnostiquer plus finement les problèmes en suivant les étapes suivantes :Désactiver le redémarrage [...]
No image on the videoprojecteur
The video might be connected and turned on, the laptop refuses to send any image on video.Laptops usually have a function key to toggle the display to the video:To switch to the video, you usually need to press the Fn + F10 keys (or any other function key as portable).By pressing these keys, displaying the [...]
My new drive is not recognized by burning software
Each version of a burning software “contains” a database of burners on the market with their detailed specifications.If your drive is not recognized because it was not included in this list:Only one solution, to upgrade your burning softwareAny other movement is at best unnecessary and at worst can make your hardware unusable.Needless [...]
My computer heater too
A temperature too high can cause the computer to crash applications or system but can also deteriorate some of the computer components, such as the processorCauses of overheatingMy desktop heater tooMy laptop too heater
Causes of overheatingIf your computer heats too, the problem of temperature can be linked to several factors:1. The processor [...]
Causes of overheatingIf your computer heats too, the problem of temperature can be linked to several factors:1. The processor [...]
Maximum length of a USB cable
According to the USB standard, the maximum length of a USB cable is 5 metres.Nevertheless, it is possible to go beyond this limit through a repeater, which can again add additional 5m:USB repeaterIt is possible to link four transponders for up to a total length of 25 meters, but it is nevertheless advisable [...]
How to place the video on the computer (PC) on TV
TV outputS-Video OutRCA OutputSetup in WindowsAnswers to frequently asked questionsThe image of the TV vascilleThe image of the TV is in black and whiteThe videos do not appear on TV and appear in blackOther tricks
It is possible to display the output from the computer to the television (or even the sound on an amp).Therefore [...]
It is possible to display the output from the computer to the television (or even the sound on an amp).Therefore [...]
Hard drive large unrecognized ( 128 GB)
More and more hard disks have a capacity of more than 128 GB Unfortunately, once installed on some machines, the system shows only 128 gigabytes unfortunate.This problem can be linked to two separate causes:– Physical Cause: The motherboard is not capable of managing more than 128 GB– Cause software: The operating system (Windows, Linux, [...]
External Hard Disk USB unrecognized in Windows
If Windows does not recognize your external hard drive, check the following:In the panel:Double-click on Administrative Tools,Click Computer ManagementClick on Disk Management.If the external hard disk appears, it is necessary to partition, and then formatted to appear in the workstation.If the drive does not appear:Test with another USB cableTry to unplug the drive, turning [...]
Get The Most Out Of Your Digital Camera Today!
Point and click. The new life of digital cameras gives us all the opportunity to capture images as we go. Whether you simply hit the shutter button to take pictures of your friends and family or if you want to have your camera with you at all times in order to capture the beauty of [...]
Max Shooter Keyboard & Mouse Adapter For PS2 & XBOX
The third and latest XBOX/PS2 keyboard & mouse adapter to hit the market is the Max Shooter. Before this adapter was released there was a good chance that the guy destroying you in Halo 2 was using a regular XBOX controller and not one of the previously released keyboard & mouse adapters. Enter Max Shooter [...]
Finding The Best Buy On A Digital Camera
The best buy digital camera is not necessarily the cheapest, but the one that has the best overall package for your needs. It is important to check on the various functions and accessories before you compare prices to ensure that you find the best buy digital camera. The main reason that people want to buy [...]
What Is The Best Digital Camera For Me?
There is so much to consider when looking for the best digital camera to suit your needs. It is important to decide what features matter the most to you. The main factors, apart from cost, in assessing which is the best digital camera for you are as follows:• Size and weight• Resolution• Level of Control• [...]
Top 3 Tips For Buying An LCD TV
I want a larger screen and so do you. There is absolutely no reason for this wanting except for the feeling of power that a large screen gives you. I have no idea why it is, but we all seem to want a larger screen for our TVs these days. The question is, how to [...]
Satellite Dish TV - Renters 5 things you need to know before buying satellite tv
1. Satellite Dish TV Rules and RegulationsIf the landlord doesn’t approve and permit satellite dish TV, under the FCC (Federal Communication Commission) rules and regulations, renters have the right to install dish antennas in permissible areas. The FCC ruled that landlords do not have the right to prevent installation, maintenance, or use of a satellite [...]
Repairing A Digital Camera
It would be ideal if you never had to use a digital camera repair service but the chances are that you will have to find one during the life of your digital camera. If you have bought your camera carefully then it should have a lengthy digital camera repair warranty. Even if your camera is [...]
Protect Your Mobile Phone Pictures and Videos
As more and more of us become owners of the latest camera phones and are able to capture information at a touch of a button, a new trend is being set in the world of journalism.To set the scene, let’s imagine you are walking down the road when you spot a couple of A-List celebrities [...]
Picking Up The Best Satellite TV Deals From The Right Retailers: A Checklist For Satellite TV Shoppers
Once considered a luxury for the rich and famous, satellite television has become a competitive industry, making it an affordable option for just about everyone. Nowadays, with more than 20 millions subscribers in total, satellite TV broadcasting had become one of the fastest growing home products in United States.The fact is for recent years, the [...]
Max Shooter Keyboard & Mouse Adapter For PS2 & XBOX
The third and latest XBOX/PS2 keyboard & mouse adapter to hit the market is the Max Shooter. Before this adapter was released there was a good chance that the guy destroying you in Halo 2 was using a regular XBOX controller and not one of the previously released keyboard & mouse adapters. Enter Max Shooter [...]
Message limited or no Connectivity
If the network is not workingClear your cache DNSEmpty the ARP cacheReset The catalogue WinsockReset the TCP / IP protocolDownload XP Winsock FixIf it works in spite of everythingParticular case of Wi-FiOther tips on connecting
If the network is not workingMake sure that the DHCP service is activated on your router.Make sure that the problem does not come from a Personal Firewall.On a wireless network, this message may appear when you use a key WEP (Wired Equivalent Privacy) incorrectly, or when you do not have WEP key.Assign the IP address manually and verify it works!Reset your modem (power off) by disconnecting and then reconnecting it and the pc.It is possible that you do not have an IP address
Clear your cache DNSCliquez to Start> RunIn the Open field type cmd and press EnterIn the window that opens type: ipconfig / flushdns and press EnterRestart your computer.
Clear your cache arpCliquez to Start> RunIn the Open field type cmd and press EnterIn the window that opens type: netsh interface ip arpcache delete and press EnterRestart your computer.
Reset The catalogue WinsockCliquez to Start> RunIn the Open field type cmd and press EnterIn the window that opens type: netsh winsock reset catalog and press EnterRestart your computer.
Reset TCP / IPCliquez to Start> RunIn the Open field type cmd and press EnterIn the window that opens type: netsh int ip reset c: \ resetlog.txt and press EnterRestart your computer.
Download XP Winsock FixDownload XP Winsock Fix
What does it?
WinSock XP FixIf the netsh int ip reset c: \ resetlog.txt (generally effective) does not allow you to restore the rule of the TCP / IP stack, the utility will let you perhaps to restore the original settings of your network and find a good Internet connection, can be distorted by a spyware or virus. Includes backup feature of the registry.
Use:
Nothing could be easier, simply run winsock xp fix, click FIx, and the software takes care of everything, just waiting for the pc restarts alone, and the problem is solved.
IMAGE1
IMAGE2
Si le réseau fonctionne malgré tout
Sous Windows XP SP2, si le réseau local indique Connectivité limitée ou inexistante alors que le réseau fonctionne, suivez la procédure ci-dessous pour désactiver ce message :Cliquez sur Démarrer > ExécuterDans le champ Ouvrir tapez : ncpa.cpl, puis cliquez sur OK.Double-cliquez sur Connexion au réseau local, puis cliquez sur Propriétés
IMAGE3
On the General tab, uncheck M’indiquer if this connection has limited or no connectivity,
IMAGE4
Click OK, then click Close.
Particular case of Wi-Fi
A connectivity limited or non-existent WiFi may come from poor configuration of the key security WEP / WPA. Indeed, if the key is invalid, the connection is still established, however encryption is different between the modem and your computer, data exchange can only be established, and therefore you have a limited connectivity or nonexistent.Allemand à : AnglaisAllemand à : FrançaisAnglais à : AllemandAnglais à : ArabeAnglais à : Chinois (simplifié)Anglais à : Chinois (traditionnel)Anglais à : CoréenAnglais à : EspagnolAnglais à : FrançaisAnglais à : GrecAnglais à : ItalienAnglais à : JaponaisAnglais à : NéerlandaisAnglais à : PortugaisAnglais à : RusseArabe à : AnglaisChinois à : AnglaisChinois (simplifié à : traditionnel)Chinois (traditionnel à : simplifié)Coréen à : AnglaisEspagnol à : AnglaisFrançais à : AllemandFrançais à : AnglaisGrec à : AnglaisItalien à : AnglaisJaponais à : AnglaisNéerlandais à : AnglaisPortugais à : AnglaisRusse à : Anglais
If the network is not workingMake sure that the DHCP service is activated on your router.Make sure that the problem does not come from a Personal Firewall.On a wireless network, this message may appear when you use a key WEP (Wired Equivalent Privacy) incorrectly, or when you do not have WEP key.Assign the IP address manually and verify it works!Reset your modem (power off) by disconnecting and then reconnecting it and the pc.It is possible that you do not have an IP address
Clear your cache DNSCliquez to Start> RunIn the Open field type cmd and press EnterIn the window that opens type: ipconfig / flushdns and press EnterRestart your computer.
Clear your cache arpCliquez to Start> RunIn the Open field type cmd and press EnterIn the window that opens type: netsh interface ip arpcache delete and press EnterRestart your computer.
Reset The catalogue WinsockCliquez to Start> RunIn the Open field type cmd and press EnterIn the window that opens type: netsh winsock reset catalog and press EnterRestart your computer.
Reset TCP / IPCliquez to Start> RunIn the Open field type cmd and press EnterIn the window that opens type: netsh int ip reset c: \ resetlog.txt and press EnterRestart your computer.
Download XP Winsock FixDownload XP Winsock Fix
What does it?
WinSock XP FixIf the netsh int ip reset c: \ resetlog.txt (generally effective) does not allow you to restore the rule of the TCP / IP stack, the utility will let you perhaps to restore the original settings of your network and find a good Internet connection, can be distorted by a spyware or virus. Includes backup feature of the registry.
Use:
Nothing could be easier, simply run winsock xp fix, click FIx, and the software takes care of everything, just waiting for the pc restarts alone, and the problem is solved.
IMAGE1
IMAGE2
Si le réseau fonctionne malgré tout
Sous Windows XP SP2, si le réseau local indique Connectivité limitée ou inexistante alors que le réseau fonctionne, suivez la procédure ci-dessous pour désactiver ce message :Cliquez sur Démarrer > ExécuterDans le champ Ouvrir tapez : ncpa.cpl, puis cliquez sur OK.Double-cliquez sur Connexion au réseau local, puis cliquez sur Propriétés
IMAGE3
On the General tab, uncheck M’indiquer if this connection has limited or no connectivity,
IMAGE4
Click OK, then click Close.
Particular case of Wi-Fi
A connectivity limited or non-existent WiFi may come from poor configuration of the key security WEP / WPA. Indeed, if the key is invalid, the connection is still established, however encryption is different between the modem and your computer, data exchange can only be established, and therefore you have a limited connectivity or nonexistent.Allemand à : AnglaisAllemand à : FrançaisAnglais à : AllemandAnglais à : ArabeAnglais à : Chinois (simplifié)Anglais à : Chinois (traditionnel)Anglais à : CoréenAnglais à : EspagnolAnglais à : FrançaisAnglais à : GrecAnglais à : ItalienAnglais à : JaponaisAnglais à : NéerlandaisAnglais à : PortugaisAnglais à : RusseArabe à : AnglaisChinois à : AnglaisChinois (simplifié à : traditionnel)Chinois (traditionnel à : simplifié)Coréen à : AnglaisEspagnol à : AnglaisFrançais à : AllemandFrançais à : AnglaisGrec à : AnglaisItalien à : AnglaisJaponais à : AnglaisNéerlandais à : AnglaisPortugais à : AnglaisRusse à : Anglais
Introduction to MTU
What is the MTU?
The Maximum Transmission Unit (MTU) (maximum size of the transfer unit) is a parameter that determines the longest datagram can be transmitted by an IP interface without the need to be broken into smaller units. The MTU should be larger than the datagram great that you want to convey without being fragmented. (Put simply, the MTU defines the maximum size (in bytes) of the package can be transmitted at once.)
For Ethernet, this value should be 1500 bytes.For PPPoE connections, 1492For the CTS (low-speed), 576Calculate MTU
Each transmission frame is defined by the body (MMS = = maximum segment size), which defined the largest segment of TCP information can be transmitted, and the header (header in English).Either MSS MTU = + TCP / IP headersConsider:
MSS-40 = MTU <- 40 for the header (20 byte IP and TCP 20 byte)Packages are not brokenNot lost packets
Package size / speedEither the transfer of information of 1500000 bytes using different size packages through a T1 line (rtc) (T1 = 1544000 bits / sec) following formula:
(MSS + header) * 8 bits / byte———————————- Latency =1,544,000 bits / sec.
By using different values of MTU, it is possible to calculate the latency of transmission:
If MTU = 1500, then: (1460 +40) * 8 / 1544000 = 7,772 msIf MTU = 576, then: (536 +40) * 8 / 1544000 = 2,924 msAt 10 laps, you get 77.72 ms for MTU to 1500, and 29.24 for 576 ms.
To summarize, more packages there, the longer is the transfer
Use the same formula for the transfer of 1mb.
1MByte KB = 1024 = 1,048,576 bytes.
If MTU = 1500, then: (1460 +40) * 8 / 1544000 = 7,772 ms1 MByte / MSS = 1048576 bytes / 1460 = 718.2, 719 packages therefore to transfer 1 MByte.
Soi, to transfer 1Mbyte: 719 * 7,772 packets ms (always buckle) = 5588,068 ms, or 5,588 seconds.
If we shifted our 1 MByte of 10 laps (defined by the entete), we will ideally:
(1 package * 10 * 7.772ms delay loops) + 718 * 7,772 = 5,658 seconds.
If MTU = 576, then: (536 +40) * 8 / 1544000 = 2,924 ms1 MByte / MSS = 1048576 bytes / 536 = 1956.3, therefore 1957 packages to transfer 1 MByte.
To transfer 1 MByte: 1957 * 2,924 packets ms (always buckle) = 5722,268 ms, or 5,722 seconds per loop.If we transferred these 1 MByte of 10 laps:(1 package * 10 * loops 2.924ms) + 1956 * 2,924 = 5,748 sec.
The difference is that the larger package is much less that of the header is high (relatively ^ ^)So to transfer 1Mbyte if one uses an MTU in 1500 then there is 719 * 40 = 28760 bytes for entete, while the MTU to 576, we get 1957 * 40 = 78280, or more than 49520 bytes d ‘entete transmitted each Mbyte. For our example of 10 laps, it is not significant, but on transfers daily …
In addition, most modems use a entete most important, and that we do not take into account and such other latencies might be involved.Find the value of MTU under Windows
To find the maximum value MTU, it is necessary to go to the command prompt (Start> Run> “cmd”). Once at the command prompt (page black background), it is necessary to make a ping test, indicating the packet size test:
Ping-f-l (size of the package -2 (IP your server)The-f option allows you to the test by forcing routers encountered not to fragment the packet- L option sends the size of the packageIt removes 28 to the size of the package to test corresponds to the top of this packageWe must take the test to an IP. For the sake of Internet navigation, it’s best to take a web address.
This gives:F ping-l 1372 192.168.0.1– If the answer to requette is:Response 192.168.0.1: bytes = 1372 ….Response 192.168.0.1: bytes = 1372 ….Response 192.168.0.1: bytes = 1372 ….Response 192.168.0.1: bytes = 1372 ….
Here, the size of the package allows for transport without fragmentation, we can try a higher value. When we get the message: “The package has to be fragmented, but set DF”, the size of the package is too large.Changing the MTU under Windows
Once you have determined the optimal MTU, there are two ways to change the value of MTU. I mention here the easiest to implement, Dr software via TCP: http://www.sos-adsl.com/modules/mydownloads/singlefile.php?lid=72
Once installed, you have a case “MTU”, or it is necessary to specify the value found in the test under DOS by adding 28 for entete.
Filed under: networks No Comments »
LAN and Internet Connection Sharing
Posted on April 23, 2008 by salahsamy
I. Configure a network between 2 PC only
You must have a network card installed on each PC! Connect cards with a crossover network cable type RJ 45, and verify that the diodes in the back of the NIC turn! 1. With Windows XPGo to the Control Panel, double-click on “Network Connections” and then right-click on “Local Area Connection”, choose properties!
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In the window of connection to the LAN, you see the different protocols that are installed.For that you can share your files, network play, use your printers, it is important that these protocols are installed:Client for Microsoft NetworksSharing file and printer sharing for Microsoft NetworksPlanner packages QoSInternet Protocol TCP / IP
If one of these protocols you need, click “Install…” and add it.
We will now set the addresses of each computer, we should select the “Internet Protocol TCP / IP” and click “Properties”. We must now assign an IP address to each computer, it can be done automatically or you can define yourself what is by far preferable. Commonly, we will give these addresses:
PC No. 1IP address: 192.168.0.1Subnet mask: 255.255.255.0
No. 2 PCIP address: 192.168.0.2Subnet mask: 255.255.255.0
We will leave the DNS automatically. Close window with OK
Now let’s make the 2 computers belong to the same workgroup. To do this, you have to right-click the desktop and select “properties”.In the section “Computer name”, you will see the name of the computer as well as the working group in which he finds himself. Click on “network ID” to change the working group, it is preferable that computers will be 2 in the same workgroup
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The next step is to verify that the two PCs communicate well together. Open command prompt (MS-DOS window to win 98), opening the Start menu / run, type “cmd”):
Taper with the PC No. 1, the command “ping 192.168.0.2″ that verifies that the PC No. 1 clearly the No. 2. Then try “ping nomduPC2.”Taper with the No. 2 PC, the command “ping 192.168.0.1″ which allows to verify that the No. 2 PC clearly the No. 2. Then try “ping nomduPC1.”
The “Ipconfig / all” well lets you know the network configuration of the PC if you have done everything possible automatic.
The next step is to share files on each PC, right click on the folder you want to share, click “Sharing”, name the file as will be seen in the network.
Right-click on the icon “My Network Places” in your office then click on “Explorer” (Warning: there is a difference between Explorer and Open), click ‘entire network’ and then the working group, you see computers as well as all records and files they share. 2. With Windows 98 (Me?) Right-clicking the icon “Network Neighborhood” on your desktop and select Properties or go to the Control Panel and click on “network.”In the window “network”In the tab “Settings”, you see the different protocols that are installed as well as network cards.For that you can share your files, network play, share printers, it is important that these protocols are installed:Client for Microsoft NetworksThe name of your network cardSharing files and printers for Microsoft NetworksProtocol IPX / SPXInternet Protocol TCP / IP
If one of these protocols you need, click “Install…” and add it.
We will now set IP addresses for each computer, we should select the “Internet Protocol TCP / IP” and click on “Properties” for “open window” TCP / IP properties “We must now assign IP addresses for each computer, you can define yourself, or put them into automatic knowing that the manual method lets you control your network!Commonly, we will give these addresses:
PC No. 1IP address: 192.168.0.1Subnet mask: 255.255.255.0
No. 2 PCIP address: 192.168.0.2Subnet mask: 255.255.255.0
In general, the DNS are disabled in the event of a network between 2 computers, unless there is a shared connection to the Internet (to check if I plant it!).Now, we must make sure that all computers are in the same workgroup.In the tab “Identification” window of your “network”, you will see the name of the computer as well as the working group in which he finds himself, it is preferable that computers will be 2 in the same working group ( example: WORKGROUP)
The next step is to verify that the two PCs communicate well together.
Open a DOS window by going to “Start menu” and then “run”, type “command”:
Taper with the PC No. 1, the command “ping 192.168.0.2″ that verifies that the PC No. 1 clearly the No. 2. Then try “ping nomduPC2.”Taper with the No. 2 PC, the command “ping 192.168.0.1″ which allows to verify that the No. 2 PC clearly the No. 2. Then try “ping nomduPC1.
The “Ipconfig / all” well lets you know the configuration of the PC network at a glance.
The next step is to share files on each PC, right click on the folder you want to share in the explorer choose “share”, then take, “as sharing and name the file as it is seen in the network
Right-click on the icon “Network Neighborhood” in your office then click on “Explorer” (Warning: there is a difference between Explorer and Open), click on “Network” and then on the working group that you have created and see the computers and all the folders and files they share.II. With more computers
Each PC should be as previously fitted with a network card and the appropriate drivers installed.We will choose to connect with the cable networks right type RJ45 on a hub or a switch (the switch works as the Hub, but it is more efficient because it prevents collisions between packets and eliminates those who are affected).
The configuration must be done in the same manner as stated above, they must:Having the right protocols installed.Having the same subnet mask. (255.255.255.0)Have IP addresses of the type: - No. 1 PC - 192.168.0.1 –No. 2 PC - 192.168.0.2 –No. 3 PC - 192.168.0.3 –Etc …Being in the same workgroup. (Workgroup)III. Internet Connection Sharing.
One of the benefits of computers and the connection you want to share with others.The connection can be shared type of DSL or cable. It is assumed that this connection is already configured on the PC. One PC will act as server (PC No. 1) and other client (PC No. 2, 3 and 4 …).So we will assign the address 192.168.0.1 to the PC No. 1, which benefits from the Internet connection, other PC will respectively address IP192.168.0.2, 3 and 4 …We must now set up bridges on the PC No. 2, 3 and 4. The bridge is the IP address of No. 1 PC, which benefits from the Internet, or in our case 192.168.0.1. A. Under windows XPDans Window Properties Internet Protocol (TCP / IP) “in the” General “tab,
Enter 192.168.0.1. As a gateway for PCs No. 2, 3 and 4.Also in the “General” tab, click “Use the following DNS server address” and enter the following info:DNS Server favorite: 192.168.0.1DNS Server Auxiliary: none(They correspond to the DNS (Domain Name Server) primary and secondary).B. On a Windows PC 98Pour No. 1You must first install the service “Internet Connection Sharing.” To do this, you need to go to Start / Settings / Control Panel / Add Remove Programs / Windows Setup / Internet Tools / Select “Internet Connection Sharing”Confirm by clicking on “OK”Specify the directory of the CD Windows 98 when the system asksFor PC No. 2, 3 and 4In the window “Properties TCP / IP,” in the “Gateway” enter 192.168.0.1 as a new bridge and be sure to click add.In the section “Configuring DNS,” click “activate DNS”Then enter the following info:Host: Put the name of PC1 for all PC (except himself PC1)Area: In “DNS search order,” put “192.168.0.1″ and click add
© MetathesusIV. If a problemCheck the type of node:Start> Run then type cmdTaper: ipconfig / allFacing node type the word or Unknown Hybrid. Otherwise:Click on Start> Run then type: regeditBrowse: HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Services \ NetBT \ Parameters.Deleting an entry bearing one of these two names: NodeType or DhcpNodeType.Finish restarting the computer.Make sure NetBIOS is enabled:With the right mouse button, click on the network connection and then click Properties.Select the TCP / IP protocol and then on Properties.Click on Advanced, then WINS tab.Select “Enable NetBIOS with TCP / IP”.Make sure NetBIOS is enabled by using the command:Start> execute> cmd.exe> ipconfig / all
Make sure the firewall is not blocking computers on the LANIf necessary, disable it a short time to target the problem. See:5BS%% E9curit% E9% 5D% d Use firewall 27un
More network problems:Http://www.hotline-pc.org/reseauproblemes.htm
Filed under: networks No Comments »
List of open ports
Posted on April 23, 2008 by salahsamy
Que vous soyez sous Windows ou Linux/Unix, la commande suivante (en console) permet d’afficher la liste des ports ouverts sur votre ordinateur :netstat -a
The Maximum Transmission Unit (MTU) (maximum size of the transfer unit) is a parameter that determines the longest datagram can be transmitted by an IP interface without the need to be broken into smaller units. The MTU should be larger than the datagram great that you want to convey without being fragmented. (Put simply, the MTU defines the maximum size (in bytes) of the package can be transmitted at once.)
For Ethernet, this value should be 1500 bytes.For PPPoE connections, 1492For the CTS (low-speed), 576Calculate MTU
Each transmission frame is defined by the body (MMS = = maximum segment size), which defined the largest segment of TCP information can be transmitted, and the header (header in English).Either MSS MTU = + TCP / IP headersConsider:
MSS-40 = MTU <- 40 for the header (20 byte IP and TCP 20 byte)Packages are not brokenNot lost packets
Package size / speedEither the transfer of information of 1500000 bytes using different size packages through a T1 line (rtc) (T1 = 1544000 bits / sec) following formula:
(MSS + header) * 8 bits / byte———————————- Latency =1,544,000 bits / sec.
By using different values of MTU, it is possible to calculate the latency of transmission:
If MTU = 1500, then: (1460 +40) * 8 / 1544000 = 7,772 msIf MTU = 576, then: (536 +40) * 8 / 1544000 = 2,924 msAt 10 laps, you get 77.72 ms for MTU to 1500, and 29.24 for 576 ms.
To summarize, more packages there, the longer is the transfer
Use the same formula for the transfer of 1mb.
1MByte KB = 1024 = 1,048,576 bytes.
If MTU = 1500, then: (1460 +40) * 8 / 1544000 = 7,772 ms1 MByte / MSS = 1048576 bytes / 1460 = 718.2, 719 packages therefore to transfer 1 MByte.
Soi, to transfer 1Mbyte: 719 * 7,772 packets ms (always buckle) = 5588,068 ms, or 5,588 seconds.
If we shifted our 1 MByte of 10 laps (defined by the entete), we will ideally:
(1 package * 10 * 7.772ms delay loops) + 718 * 7,772 = 5,658 seconds.
If MTU = 576, then: (536 +40) * 8 / 1544000 = 2,924 ms1 MByte / MSS = 1048576 bytes / 536 = 1956.3, therefore 1957 packages to transfer 1 MByte.
To transfer 1 MByte: 1957 * 2,924 packets ms (always buckle) = 5722,268 ms, or 5,722 seconds per loop.If we transferred these 1 MByte of 10 laps:(1 package * 10 * loops 2.924ms) + 1956 * 2,924 = 5,748 sec.
The difference is that the larger package is much less that of the header is high (relatively ^ ^)So to transfer 1Mbyte if one uses an MTU in 1500 then there is 719 * 40 = 28760 bytes for entete, while the MTU to 576, we get 1957 * 40 = 78280, or more than 49520 bytes d ‘entete transmitted each Mbyte. For our example of 10 laps, it is not significant, but on transfers daily …
In addition, most modems use a entete most important, and that we do not take into account and such other latencies might be involved.Find the value of MTU under Windows
To find the maximum value MTU, it is necessary to go to the command prompt (Start> Run> “cmd”). Once at the command prompt (page black background), it is necessary to make a ping test, indicating the packet size test:
Ping-f-l (size of the package -2 (IP your server)The-f option allows you to the test by forcing routers encountered not to fragment the packet- L option sends the size of the packageIt removes 28 to the size of the package to test corresponds to the top of this packageWe must take the test to an IP. For the sake of Internet navigation, it’s best to take a web address.
This gives:F ping-l 1372 192.168.0.1– If the answer to requette is:Response 192.168.0.1: bytes = 1372 ….Response 192.168.0.1: bytes = 1372 ….Response 192.168.0.1: bytes = 1372 ….Response 192.168.0.1: bytes = 1372 ….
Here, the size of the package allows for transport without fragmentation, we can try a higher value. When we get the message: “The package has to be fragmented, but set DF”, the size of the package is too large.Changing the MTU under Windows
Once you have determined the optimal MTU, there are two ways to change the value of MTU. I mention here the easiest to implement, Dr software via TCP: http://www.sos-adsl.com/modules/mydownloads/singlefile.php?lid=72
Once installed, you have a case “MTU”, or it is necessary to specify the value found in the test under DOS by adding 28 for entete.
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LAN and Internet Connection Sharing
Posted on April 23, 2008 by salahsamy
I. Configure a network between 2 PC only
You must have a network card installed on each PC! Connect cards with a crossover network cable type RJ 45, and verify that the diodes in the back of the NIC turn! 1. With Windows XPGo to the Control Panel, double-click on “Network Connections” and then right-click on “Local Area Connection”, choose properties!
IMAGE1
In the window of connection to the LAN, you see the different protocols that are installed.For that you can share your files, network play, use your printers, it is important that these protocols are installed:Client for Microsoft NetworksSharing file and printer sharing for Microsoft NetworksPlanner packages QoSInternet Protocol TCP / IP
If one of these protocols you need, click “Install…” and add it.
We will now set the addresses of each computer, we should select the “Internet Protocol TCP / IP” and click “Properties”. We must now assign an IP address to each computer, it can be done automatically or you can define yourself what is by far preferable. Commonly, we will give these addresses:
PC No. 1IP address: 192.168.0.1Subnet mask: 255.255.255.0
No. 2 PCIP address: 192.168.0.2Subnet mask: 255.255.255.0
We will leave the DNS automatically. Close window with OK
Now let’s make the 2 computers belong to the same workgroup. To do this, you have to right-click the desktop and select “properties”.In the section “Computer name”, you will see the name of the computer as well as the working group in which he finds himself. Click on “network ID” to change the working group, it is preferable that computers will be 2 in the same workgroup
IMAGE2
The next step is to verify that the two PCs communicate well together. Open command prompt (MS-DOS window to win 98), opening the Start menu / run, type “cmd”):
Taper with the PC No. 1, the command “ping 192.168.0.2″ that verifies that the PC No. 1 clearly the No. 2. Then try “ping nomduPC2.”Taper with the No. 2 PC, the command “ping 192.168.0.1″ which allows to verify that the No. 2 PC clearly the No. 2. Then try “ping nomduPC1.”
The “Ipconfig / all” well lets you know the network configuration of the PC if you have done everything possible automatic.
The next step is to share files on each PC, right click on the folder you want to share, click “Sharing”, name the file as will be seen in the network.
Right-click on the icon “My Network Places” in your office then click on “Explorer” (Warning: there is a difference between Explorer and Open), click ‘entire network’ and then the working group, you see computers as well as all records and files they share. 2. With Windows 98 (Me?) Right-clicking the icon “Network Neighborhood” on your desktop and select Properties or go to the Control Panel and click on “network.”In the window “network”In the tab “Settings”, you see the different protocols that are installed as well as network cards.For that you can share your files, network play, share printers, it is important that these protocols are installed:Client for Microsoft NetworksThe name of your network cardSharing files and printers for Microsoft NetworksProtocol IPX / SPXInternet Protocol TCP / IP
If one of these protocols you need, click “Install…” and add it.
We will now set IP addresses for each computer, we should select the “Internet Protocol TCP / IP” and click on “Properties” for “open window” TCP / IP properties “We must now assign IP addresses for each computer, you can define yourself, or put them into automatic knowing that the manual method lets you control your network!Commonly, we will give these addresses:
PC No. 1IP address: 192.168.0.1Subnet mask: 255.255.255.0
No. 2 PCIP address: 192.168.0.2Subnet mask: 255.255.255.0
In general, the DNS are disabled in the event of a network between 2 computers, unless there is a shared connection to the Internet (to check if I plant it!).Now, we must make sure that all computers are in the same workgroup.In the tab “Identification” window of your “network”, you will see the name of the computer as well as the working group in which he finds himself, it is preferable that computers will be 2 in the same working group ( example: WORKGROUP)
The next step is to verify that the two PCs communicate well together.
Open a DOS window by going to “Start menu” and then “run”, type “command”:
Taper with the PC No. 1, the command “ping 192.168.0.2″ that verifies that the PC No. 1 clearly the No. 2. Then try “ping nomduPC2.”Taper with the No. 2 PC, the command “ping 192.168.0.1″ which allows to verify that the No. 2 PC clearly the No. 2. Then try “ping nomduPC1.
The “Ipconfig / all” well lets you know the configuration of the PC network at a glance.
The next step is to share files on each PC, right click on the folder you want to share in the explorer choose “share”, then take, “as sharing and name the file as it is seen in the network
Right-click on the icon “Network Neighborhood” in your office then click on “Explorer” (Warning: there is a difference between Explorer and Open), click on “Network” and then on the working group that you have created and see the computers and all the folders and files they share.II. With more computers
Each PC should be as previously fitted with a network card and the appropriate drivers installed.We will choose to connect with the cable networks right type RJ45 on a hub or a switch (the switch works as the Hub, but it is more efficient because it prevents collisions between packets and eliminates those who are affected).
The configuration must be done in the same manner as stated above, they must:Having the right protocols installed.Having the same subnet mask. (255.255.255.0)Have IP addresses of the type: - No. 1 PC - 192.168.0.1 –No. 2 PC - 192.168.0.2 –No. 3 PC - 192.168.0.3 –Etc …Being in the same workgroup. (Workgroup)III. Internet Connection Sharing.
One of the benefits of computers and the connection you want to share with others.The connection can be shared type of DSL or cable. It is assumed that this connection is already configured on the PC. One PC will act as server (PC No. 1) and other client (PC No. 2, 3 and 4 …).So we will assign the address 192.168.0.1 to the PC No. 1, which benefits from the Internet connection, other PC will respectively address IP192.168.0.2, 3 and 4 …We must now set up bridges on the PC No. 2, 3 and 4. The bridge is the IP address of No. 1 PC, which benefits from the Internet, or in our case 192.168.0.1. A. Under windows XPDans Window Properties Internet Protocol (TCP / IP) “in the” General “tab,
Enter 192.168.0.1. As a gateway for PCs No. 2, 3 and 4.Also in the “General” tab, click “Use the following DNS server address” and enter the following info:DNS Server favorite: 192.168.0.1DNS Server Auxiliary: none(They correspond to the DNS (Domain Name Server) primary and secondary).B. On a Windows PC 98Pour No. 1You must first install the service “Internet Connection Sharing.” To do this, you need to go to Start / Settings / Control Panel / Add Remove Programs / Windows Setup / Internet Tools / Select “Internet Connection Sharing”Confirm by clicking on “OK”Specify the directory of the CD Windows 98 when the system asksFor PC No. 2, 3 and 4In the window “Properties TCP / IP,” in the “Gateway” enter 192.168.0.1 as a new bridge and be sure to click add.In the section “Configuring DNS,” click “activate DNS”Then enter the following info:Host: Put the name of PC1 for all PC (except himself PC1)Area: In “DNS search order,” put “192.168.0.1″ and click add
© MetathesusIV. If a problemCheck the type of node:Start> Run then type cmdTaper: ipconfig / allFacing node type the word or Unknown Hybrid. Otherwise:Click on Start> Run then type: regeditBrowse: HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Services \ NetBT \ Parameters.Deleting an entry bearing one of these two names: NodeType or DhcpNodeType.Finish restarting the computer.Make sure NetBIOS is enabled:With the right mouse button, click on the network connection and then click Properties.Select the TCP / IP protocol and then on Properties.Click on Advanced, then WINS tab.Select “Enable NetBIOS with TCP / IP”.Make sure NetBIOS is enabled by using the command:Start> execute> cmd.exe> ipconfig / all
Make sure the firewall is not blocking computers on the LANIf necessary, disable it a short time to target the problem. See:5BS%% E9curit% E9% 5D% d Use firewall 27un
More network problems:Http://www.hotline-pc.org/reseauproblemes.htm
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List of open ports
Posted on April 23, 2008 by salahsamy
Que vous soyez sous Windows ou Linux/Unix, la commande suivante (en console) permet d’afficher la liste des ports ouverts sur votre ordinateur :netstat -a
How crimp cable RJ45
To do this, you must have:
1 / A cable length FTP enough (but not too long)2 / RJ45 Two emboûts3 / A crimp pliers
Having stripped the cable to 2 cm at each end, it is necessary to separate the strands.In general, it was 4 twisted pairs of colors:
Orange / Orange-WhiteGreen / green-whiteBlue / white and blueBrown / brown-white
To make a cable law, it is necessary that the emboûts be seamed in the same way at each end.
Generally, the code is used:
1) Orange-White2) Orange3) green-white4) blue5), white and blue6) Green7) brown-white brown
For a crossover cable, it is necessary to switch sides 1 / 2 and 3 / 6, so it was on the one hand the same wiring as above, and on the other, the wiring follows:
1) green-white2) Green3) Orange-White4) blue5), white and blue6) Orange7) brown-white brown
See also:Http://allowin.com/v1/cablage.htmHttp://etienne.durup.free.fr/cablage/
The standard eia / tia 568 a & b regisse wiringFor cable law:
1) white-green 1) white-green2) Green 2) Green3) white-orange 3) white-orange4) Blue 4) blue5) white-blue 5) white-blue6) orange 6) orange7) White-Brown 7) white-brown Brown brown
For crossover cable:
1) white-green 1) white-orange2) Green 2) orange3) white-orange 3) white-green4) Blue 4) blue5) white-blue 5) white-blue6) orange 6) Green7) White-Brown 7) white-brown Brown brownAllemand à : AnglaisAllemand à : FrançaisAnglais à : AllemandAnglais à : ArabeAnglais à : Chinois (simplifié)Anglais à : Chinois (traditionnel)Anglais à : CoréenAnglais à : EspagnolAnglais à : FrançaisAnglais à : GrecAnglais à : ItalienAnglais à : JaponaisAnglais à : NéerlandaisAnglais à : PortugaisAnglais à : RusseArabe à : AnglaisChinois à : AnglaisChinois (simplifié à : traditionnel)Chinois (traditionnel à : simplifié)Coréen à : AnglaisEspagnol à : AnglaisFrançais à : AllemandFrançais à : AnglaisGrec à : AnglaisItalien à : AnglaisJaponais à : AnglaisNéerlandais à : AnglaisPortugais à : AnglaisRusse à : Anglais
1 / A cable length FTP enough (but not too long)2 / RJ45 Two emboûts3 / A crimp pliers
Having stripped the cable to 2 cm at each end, it is necessary to separate the strands.In general, it was 4 twisted pairs of colors:
Orange / Orange-WhiteGreen / green-whiteBlue / white and blueBrown / brown-white
To make a cable law, it is necessary that the emboûts be seamed in the same way at each end.
Generally, the code is used:
1) Orange-White2) Orange3) green-white4) blue5), white and blue6) Green7) brown-white brown
For a crossover cable, it is necessary to switch sides 1 / 2 and 3 / 6, so it was on the one hand the same wiring as above, and on the other, the wiring follows:
1) green-white2) Green3) Orange-White4) blue5), white and blue6) Orange7) brown-white brown
See also:Http://allowin.com/v1/cablage.htmHttp://etienne.durup.free.fr/cablage/
The standard eia / tia 568 a & b regisse wiringFor cable law:
1) white-green 1) white-green2) Green 2) Green3) white-orange 3) white-orange4) Blue 4) blue5) white-blue 5) white-blue6) orange 6) orange7) White-Brown 7) white-brown Brown brown
For crossover cable:
1) white-green 1) white-orange2) Green 2) orange3) white-orange 3) white-green4) Blue 4) blue5) white-blue 5) white-blue6) orange 6) Green7) White-Brown 7) white-brown Brown brownAllemand à : AnglaisAllemand à : FrançaisAnglais à : AllemandAnglais à : ArabeAnglais à : Chinois (simplifié)Anglais à : Chinois (traditionnel)Anglais à : CoréenAnglais à : EspagnolAnglais à : FrançaisAnglais à : GrecAnglais à : ItalienAnglais à : JaponaisAnglais à : NéerlandaisAnglais à : PortugaisAnglais à : RusseArabe à : AnglaisChinois à : AnglaisChinois (simplifié à : traditionnel)Chinois (traditionnel à : simplifié)Coréen à : AnglaisEspagnol à : AnglaisFrançais à : AllemandFrançais à : AnglaisGrec à : AnglaisItalien à : AnglaisJaponais à : AnglaisNéerlandais à : AnglaisPortugais à : AnglaisRusse à : Anglais
Enabling WiFi integrated on a Laptop
The laptops have advanced functions for the management of energy saving. One of them, enables or stop supplying the integrated WiFi. Here is a list of major portable with the method to activate a remote system. AcerAsusDellCompaqFujitsu SiemensGericomIBMHP PavilionMedionMSIPackard BellPHILIPSSamsungSony VaioToshiba
AcerAspire 16xx: Button front symbolizing a parable.Aspire 3005: Underneath the keyboard, at the edge of the cover, right button.Aspire 5612: Slide on / off at the front.Aspire 9302: button on the left of the laptop, surrounded by blue.Aspire 94xx: Lock button under numAsus
Combination of the FN key and press F2 (if F2 is the symbol of an antenna or a satellite dish).Dell
Combination of the FN key and press F2 (if F2 is the symbol of an antenna or a satellite dish) or slide three positions (Attention, according to the BIOS settings, this switch can also control the Bluetooth network ):– 0 (Judgement)– 1 (March)–>> (Research and connection access points)Compaq
Button imposing enough above the keyboard. It must be a long press to activate it.Fujitsu SiemensSlider Crane, on the right, including the indication “Wireless”.Amilo Series: Fn + F2 to activate and deactivate the wifi. Above the keyboard, next to the button “i” to open a browser: Button symbolized by an antenna on the right.Amilo Xi1546: Button in the form of a slide on the front of the laptop.Series “non Amilo” Button Off / ON Wireless below the touchpadGericomCinema 16100: FN + F1IBMT43: Fn + F5HP PavilionDV Series: Above the keyboard, in the centre, with a satellite button symbolized.ZD series: Above “verrà dig” button with an antenna symbolized.HP Pavilion 9212EA (sub vista): Bouton wireless front on the left.Medion
FN FN + F1 or F2 or F11 + FN depending on the model.MSI
Button symbolized by antenna near the power.Packard BellEasynote W7730: Button front on the left, symbolizing an antenna.Easynote B3600: FN + F1 with a satellite symbolized F1.PHILIPSX54: Button symbolized by an antenna near the power or FN + F2Samsung
Blue button in the middle of the keyboard.Sony Vaio
Slider Crane scored WLAN.ToshibaA100-078: A slide on the slice of right & FN + F8M40 & M70: In front button on / off symbolized by an antenna.M60-181 & R200: On the right side, button on / offQOSMIO: On the left side, button on / offR200: Switch ON / OFF on the right flank close to the screen
AcerAspire 16xx: Button front symbolizing a parable.Aspire 3005: Underneath the keyboard, at the edge of the cover, right button.Aspire 5612: Slide on / off at the front.Aspire 9302: button on the left of the laptop, surrounded by blue.Aspire 94xx: Lock button under numAsus
Combination of the FN key and press F2 (if F2 is the symbol of an antenna or a satellite dish).Dell
Combination of the FN key and press F2 (if F2 is the symbol of an antenna or a satellite dish) or slide three positions (Attention, according to the BIOS settings, this switch can also control the Bluetooth network ):– 0 (Judgement)– 1 (March)–>> (Research and connection access points)Compaq
Button imposing enough above the keyboard. It must be a long press to activate it.Fujitsu SiemensSlider Crane, on the right, including the indication “Wireless”.Amilo Series: Fn + F2 to activate and deactivate the wifi. Above the keyboard, next to the button “i” to open a browser: Button symbolized by an antenna on the right.Amilo Xi1546: Button in the form of a slide on the front of the laptop.Series “non Amilo” Button Off / ON Wireless below the touchpadGericomCinema 16100: FN + F1IBMT43: Fn + F5HP PavilionDV Series: Above the keyboard, in the centre, with a satellite button symbolized.ZD series: Above “verrà dig” button with an antenna symbolized.HP Pavilion 9212EA (sub vista): Bouton wireless front on the left.Medion
FN FN + F1 or F2 or F11 + FN depending on the model.MSI
Button symbolized by antenna near the power.Packard BellEasynote W7730: Button front on the left, symbolizing an antenna.Easynote B3600: FN + F1 with a satellite symbolized F1.PHILIPSX54: Button symbolized by an antenna near the power or FN + F2Samsung
Blue button in the middle of the keyboard.Sony Vaio
Slider Crane scored WLAN.ToshibaA100-078: A slide on the slice of right & FN + F8M40 & M70: In front button on / off symbolized by an antenna.M60-181 & R200: On the right side, button on / offQOSMIO: On the left side, button on / offR200: Switch ON / OFF on the right flank close to the screen
How A Movie From 1939 Can Save You From Financial Disaster
It’s a Twister Dorothy!
That’s what they said towards the beginning of the classic movie, ” The Wizard of Oz”. Then, of course, all of the family ran for cover in the storm cellar, after they released the livestock and horses. Dorothy, didn’t make it to the shelter that afternoon, and Auntie Em was really worried.
Well, I am right there with Auntie Em. The only difference is that the “twister” I am worried about is the effect baby boomers are going to have on the two pillars of security that we call Medicare and Social Security.
Now, that particular twister is going to do a lot more damage than the one in the movie. In the movie, little Dorothy’s house was pulled off it’s foundation, and dropped on the wicked witch all in one piece. The damage was minimal. At the end of the movie, Dorothy had a small lump on her head, but was otherwise un-harmed. All in all, there was a happy ending.
The Baby Boom “twister” is real, and it is coming, and we had better start to get prepared. Especially since we are being forewarned once again.
The Social Security program, along with Medicare have, once again, been “reviewed” by their respective “Trustees” to determine how soon they will be insolvent. It would appear that Medicare will become insolvent around 2019, and Social Security will be broke sometime around 2041.
As a “card carrying member” of the Baby Boom generation, Medicare will be toast about seven years before I would be eligible for benefits. I can’t tell you how thrilled I am to keep paying in to it knowing all of this.
Filed under: seo No Comments »
Web Hosting for Joomla
Posted on April 23, 2008 by salahsamy
Building a web site takes a great deal of work, we all know that. From design to HTML/PHP/ASP/JS coding, it is all time consuming which affects our income directly. Designing custom headers, image objects, animations using utilities such as Photoshop, Dreamweaver, After Effects, Cold Fusion, are all time intensive tasks indeed.
This is where automation, and powerful management systems come into play. We have all heard the phrase “Content is King”, which is in fact true, and it is very unlikely to change. The more useful and niche specific content our web site provides the better our search engine ranking will be, the more visitors and subscribers we will have and the more revenue can be derived from such online ventures.
This all sounds very nice but when the time comes to put that principle into action we face the terrible truth: “It takes a lot of time and effort”. Having a web site fully designed and managed through starter tools such as Microsoft Frontpage proves to be a serious disadvantage. To make the argument clear, pay attention to the following scenario:
You realize that constantly updated content brings you more traffic as well as feed subscriptions so you set a certain amount of time to content generation, after several hours of writing you finish the first phase of the project.
The second phase involves creating the web pages for each article and organize a proper link structure within the site so that the new content can be found easily. This involves remaking the home page linking structure, content arrangement and even design. This step will undoubtedly take a lot of time. even if templates are used.
The third stage involves checking that all the articles and links are valid and do not show 404 errors as well as placing the most relevant ad units in the right places. This is also a time consuming task.
The fourth stage involves synchronizing and making sure that all the files in your local drive match those files on your web host.
You now may be thinking “There’s got to be an easier way to do all this”, and luckily for all of us, there is!. The solution is often referred to as CMS which stands for “Content Management System”. Using a proper CMS will cut the time spent doing all of these tedious tasks by more than half ( 66.67% to be precise) because you know don’t have to worry about step 2, 3 and 4 but only about step one.
A content management will generate all the pages dynamically, include the right graphics and targeted ad units automatically. One of the most popular CMS is called Joomla. This CMS will require a MySQL database to store all of this information.
The right hosting service will not only help you set this system up but it will also have a one click installation ready for you, which cuts the time and problems involved in manually installing and configuring folder permissions for this useful software. The right hosting solution will provide the necessary support and scripts needed to run this configuration.
The most important tools needed to run Joomla include: PHP 4.2, MySQL 3.23 and Apache 1.3 (or above). Online business becomes more profitable through the use of the right tools along with the best hosting support to help you gain minutes throughout the day.
That’s what they said towards the beginning of the classic movie, ” The Wizard of Oz”. Then, of course, all of the family ran for cover in the storm cellar, after they released the livestock and horses. Dorothy, didn’t make it to the shelter that afternoon, and Auntie Em was really worried.
Well, I am right there with Auntie Em. The only difference is that the “twister” I am worried about is the effect baby boomers are going to have on the two pillars of security that we call Medicare and Social Security.
Now, that particular twister is going to do a lot more damage than the one in the movie. In the movie, little Dorothy’s house was pulled off it’s foundation, and dropped on the wicked witch all in one piece. The damage was minimal. At the end of the movie, Dorothy had a small lump on her head, but was otherwise un-harmed. All in all, there was a happy ending.
The Baby Boom “twister” is real, and it is coming, and we had better start to get prepared. Especially since we are being forewarned once again.
The Social Security program, along with Medicare have, once again, been “reviewed” by their respective “Trustees” to determine how soon they will be insolvent. It would appear that Medicare will become insolvent around 2019, and Social Security will be broke sometime around 2041.
As a “card carrying member” of the Baby Boom generation, Medicare will be toast about seven years before I would be eligible for benefits. I can’t tell you how thrilled I am to keep paying in to it knowing all of this.
Filed under: seo No Comments »
Web Hosting for Joomla
Posted on April 23, 2008 by salahsamy
Building a web site takes a great deal of work, we all know that. From design to HTML/PHP/ASP/JS coding, it is all time consuming which affects our income directly. Designing custom headers, image objects, animations using utilities such as Photoshop, Dreamweaver, After Effects, Cold Fusion, are all time intensive tasks indeed.
This is where automation, and powerful management systems come into play. We have all heard the phrase “Content is King”, which is in fact true, and it is very unlikely to change. The more useful and niche specific content our web site provides the better our search engine ranking will be, the more visitors and subscribers we will have and the more revenue can be derived from such online ventures.
This all sounds very nice but when the time comes to put that principle into action we face the terrible truth: “It takes a lot of time and effort”. Having a web site fully designed and managed through starter tools such as Microsoft Frontpage proves to be a serious disadvantage. To make the argument clear, pay attention to the following scenario:
You realize that constantly updated content brings you more traffic as well as feed subscriptions so you set a certain amount of time to content generation, after several hours of writing you finish the first phase of the project.
The second phase involves creating the web pages for each article and organize a proper link structure within the site so that the new content can be found easily. This involves remaking the home page linking structure, content arrangement and even design. This step will undoubtedly take a lot of time. even if templates are used.
The third stage involves checking that all the articles and links are valid and do not show 404 errors as well as placing the most relevant ad units in the right places. This is also a time consuming task.
The fourth stage involves synchronizing and making sure that all the files in your local drive match those files on your web host.
You now may be thinking “There’s got to be an easier way to do all this”, and luckily for all of us, there is!. The solution is often referred to as CMS which stands for “Content Management System”. Using a proper CMS will cut the time spent doing all of these tedious tasks by more than half ( 66.67% to be precise) because you know don’t have to worry about step 2, 3 and 4 but only about step one.
A content management will generate all the pages dynamically, include the right graphics and targeted ad units automatically. One of the most popular CMS is called Joomla. This CMS will require a MySQL database to store all of this information.
The right hosting service will not only help you set this system up but it will also have a one click installation ready for you, which cuts the time and problems involved in manually installing and configuring folder permissions for this useful software. The right hosting solution will provide the necessary support and scripts needed to run this configuration.
The most important tools needed to run Joomla include: PHP 4.2, MySQL 3.23 and Apache 1.3 (or above). Online business becomes more profitable through the use of the right tools along with the best hosting support to help you gain minutes throughout the day.
Web Traffic Is The Key To Continuous Sales
Persons involved with businesses relating to internet and internet owners are always having a tough time managing and trying to get a solution for escalating their business. People may think that internet marketing is just any other business but in reality it is a great deal harder than operating a normal business.In the competitive line of Internet, the contest can be pretty tough and it can be somewhat difficult and not that to easy to sell products by just advertising …
How to Get Many On-Theme and Quality Links to your Site
You spend hours and hours of your time writing articles and then submit the same article to hundreds of article directories. You spend even more time sending out requests to website and blog owners for reciprocal links and never hear a peep. Or how about you the time lost submitting your site to hundreds of directory services? Just what other option is there?
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