Requirements: Basic FTP skills PHP 4.3.0 or higher MySQL Database   Create a mysql database. If you are unfamiliar with how to create a mysql database, please contact your web host or search their support site. Please pay careful attention when creating a database and write down your database name, username, password, and host somewhere. [...]

  This is what we want to do: Make the target send all http packet to us instead of the gateway Forward them to the real gateway Modify the replay, with the pictures upside-down Forward the replay to the target This is how we’re going to do it: Poison the ARP table of the target Set [...]

Add More Memory (RAM)Undeniable, Windows Vista consumes a lot of memory. Windows XP can run and fly under system with specification of only 512 MB, but Vista will crawl with this ‘low’ specs. In fact, 1G is not enough, and 2G is probably considered just a ‘entry level’ memory level for Vista. To enable and [...]

To change the port, select the “my.cnf file.  Change it to whatever you like and remove the # from the front. Then restart the engine and you should be set for that. Open /etc/my.cnf file: # vi /etc/my.cnf Set new port 5123: port=5123 Here is is my sample /etc/my.cnf file: [mysqld] datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock port=5123 old_passwords=1 [...]

  The basic installation is rather simple.   Install and build any depkgs as noted above. This should be unnecessary on most modern Operating Systems.  Configure and install MySQL or PostgreSQL (if desired). Installing and Configuring MySQL Phase I or Installing and Configuring PostgreSQL Phase I. If you are installing from rpms, and are using MySQL, please be sure to install mysql-devel, [...]

FLUSH flush_option [,flush_option] You should use the FLUSH command if you want to clear some of the internal caches MySQL uses. To execute FLUSH, you must have the reload privilege.flush_option can be any of the following:   HOSTS Empties the host cache tables. You should flush the host tables if some of your hosts change [...]

The first thing to do is to install the smartmontools package which contains everything you need. How you do this varies but it’s usually pretty straightforward. If it’s already installed, just run the second command to make sure it starts when you boot up the computer. Code: # Ubuntu: apt-get install mailx smartmontools # install [...]

There are more than a couple of ways of updating Red Hat Enterprise Linux (RHEL) packages on your machine. One is by using up2date, the default package updater of RHEL systems. Unlike Fedora and CentOS which uses yum, up2date requires you to be registered to Red Hat Network (RHN) to be able to download or [...]

Ordinarily, when you type “history” into the command line, it will display the command number and the command. It may be useful to show the timestamp along with these commands using the following command # export HISTTIMEFORMAT=’ %F %T ‘ The terminal should display something similar to the following: # history | more 5 cd [...]

The Stop 0x1E message indicates that the Windows XP kernel detected an illegal or unknown processor instruction. The problems that cause Stop 0x1E messages share similarities with those that generate Stop 0xA errors in that they can be due to invalid memory and access violations. This default Windows XP error handler typically intercepts these problems [...]

The ssh program can  be used for monitoring remote hots. The system admin can also execute commands from his desktop which can be executed at remote servers. This is a cool facility of ssh. We can do much more on SSH. root@admin:~ # ssh root@www ‘df -h’ Filesystem Size Used Avail Use% Mounted on /dev/ubda 3.5G 2.1G [...]

Linux Keyboard Shortcuts: Safe Way to Exit During System Freezes In Windows, when your system hangs, you can always press Ctrl-Alt-Delete, wait for the Task Manager to open, and kill the process that doesn’t respond. However, Ctrl-Alt-Delete don’t always work the way you want it to leaving you no other option but to do a [...]

Windows contains a client-side Domain Name System (DNS) cache. The client-side DNS caching feature may generate a false impression that DNS “round robin” is not occurring from the DNS server to the Windows client computer. When you use the ping command to search for the same A-record domain name, the client may use the same IP address. [...]

Every time your web browser wants to load a web page, it needs to contact a DNS server first, which will translate thewww.domain.com address into a machine readable format – the IP address. The same thing happens when PostCast Server tries to send a message to a recipient. The domain name in the e-mail address is [...]

I am having 4 gb of ram in my production systems. and normally after 24 hours my nagios gives warning for insufficient memmory. when we check systems ,it always shows the memory in cache. So we normally reboot the system to clear the cache from the memory till we find the following command. Linux Command [...]