Speed up dynamic linking Using Prelink



ELF prelinking utility to speed up dynamic linking.The prelink package contains a utility which modifies ELF shared libraries and executables, so that far fewer relocations need to be resolved at runtime and thus programs come up faster.




How to Install Webmin in Ubuntu



Webmin is a web-based interface for system administration for Unix. Using any browser that supports tables and forms (and Java for the File Manager module), you can setup user accounts, Apache, DNS, file sharing and so on.



Webmin consists of a simple web server, and a number of CGI programs which directly update system files like /etc/inetd.conf and /etc/passwd. The web server and all CGI programs are written in Perl version 5, and use no non-standard Perl modules.

Preparing Your System

You need to install the following packages

sudo apt-get install perl libnet-ssleay-perl openssl libauthen-pam-perl libpam-runtime libio-pty-perl libmd5-perl

Install Webmin in Ubuntu

You can use the above procedure but if you want to install latest version of .deb package you can download from webmin site under Download Section

Download latest webmin using the following command

wget http://prdownloads.sourceforge.net/webadmin/webmin_1.340_all.deb

Now we have webmin_1.340_all.deb package you need to install using the following command

sudo dpkg -i webmin_1.340_all.deb

If your server complains that there is some library things does not find. Just run the following command

sudo apt- get install -f

You should now be able to login to Webmin at the URL https://localhost:10000/

Webmin User Password Change

If you want to change root password in webmin use this included Perl script:

sudo /usr/share/webmin/changepass.pl /etc/webmin root




Ubuntu 7.04 (Feisty Fawn) LAMP Server Setup



Automatic LAMP (Linux, Apache, MySQL and PHP) In about 15 minutes, the time it takes to install Ubuntu Feisty Server Edition, you can have a LAMP server up and ready to go. This feature, exclusive to Ubuntu Server Edition, is available at the time of installation.






If you want to Increase ext3 and ReiserFS filesystems Performance use the following Tweaks

Introduction

ext3 Filesystem

The ext3 or third extended filesystem is a journalled file system that is commonly used by the Linux operating system. It is the default file system for many popular Linux distributions




Recover Data from a Damaged hard disk using dd_rhelp



dd_rhelp is a bash script that handles a very usefull program written in C which is called dd_rescue, it roughly act as the dd linux command with the caracteristic to NOT stop when it falls on read/write errors.