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Linux

Block Spammers/Hackers With mod_defensible On Apache2

Post date: December 5, 2008, 12:12 Category: Security Views: 2768 Comments
Tutorial quote: mod_defensible is an Apache 2.x module intended to block spammers using DNSBL servers.

It will look at the client IP and check it in one or several DNSBL servers and return
a 403 Forbidden page to the client.
Linux

Configuring sudo and adding users to Wheel group

Post date: December 5, 2008, 12:12 Category: Security Views: 3316 Comments
Tutorial quote: f a server needs to be administered by a number of people it is normally not a good idea for them all to use the root account. This is because it becomes difficult to determine exactly who did what, when and where if everyone logs in with the same credentials. The sudo utility was designed to overcome this difficulty.
Linux

Check Your Mysql Server Performance with MySQLTuner

Post date: November 30, 2008, 20:11 Category: Software Views: 2622 Comments
Tutorial quote: MySQLTuner is a script written in Perl that will assist you with your MySQL configuration and make recommendations for increased performance and stability. Within seconds, it will display statistics about your MySQL installation and the areas where it can be improved.
Linux

Clone/Back Up/Restore OpenVZ VMs With vzdump

Post date: November 25, 2008, 11:11 Category: Miscellaneous Views: 3639 Comments
Tutorial quote: vzdump is a backup and restore utility for OpenVZ VMs. This tutorial shows how you can use it to clone/back up/restore virtual machines with vzdump.
Linux

How to create System Image

Post date: November 17, 2008, 11:11 Category: System Views: 3255 Comments
Tutorial quote: Suppose you have a 40GB hard disk and a removable hard disk whose capacity is 60GB, and you want to backup all the files from the hard disk to the removable disk. With "dd", it is a very easy task. Again, suppose your hard disk's Unix device name is /dev/sda and the removable disk is /dev/sdb. The following command can copy all the content from /dev/sda to /dev/sdb:
Linux

Monitor Network data transfer using Vnstat

Post date: October 28, 2008, 05:10 Category: Network Views: 4156 Comments
Tutorial quote: If you want to monitor and manage your Internet bandwidth, perhaps to make sure your ISP is not overbilling you, try vnStat, an open source, Linux-based application that gives you a clear picture of your bandwidth usage. This utility got the command-line options and also got the UI part which give the output in form of a graph and is simple to install and easy to use.
Linux

Kernel parameters for enhance security

Post date: October 28, 2008, 05:10 Category: Security Views: 3016 Comments
Tutorial quote: The following list shows tunable kernel parameters you can use to secure your Linux server against attacks.

For each tunable kernel parameters you need to be add it to the /etc/sysctl.conf configuration file to make the change permanent after reboots
Linux

Encrypt CD/DVDs

Post date: October 28, 2008, 05:10 Category: Security Views: 2732 Comments
Tutorial quote: This guide can be adapted to any distro, its not Ubuntu specific.
Linux

How to Convert videos to the Ipod format

Post date: October 13, 2008, 11:10 Category: Multimedia Views: 2695 Comments
Tutorial quote: thin liquid film (TLF) is an application which allows linux users to quickly and easily convert video files into a format suitable for playing on the video capable ipods (i.e. 5th and 6th generation ipods).
Linux

HowTo install software from Source Code

Post date: October 4, 2008, 17:10 Category: Software Views: 27684 Comments
Tutorial quote: We usually download linux programs through package handling tools such as yum and apt-get. Download programs through package handling tools is easy, but not all programs is available in your Linux distribution repository. Sometimes, we need to download the source code, compile and install manually.
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