In this howto i will describe how to install subversion with TRAC. Subversion is an open source version control system alternative to CVS and TRAC an enhanced wiki and issue tracking system for software development projects which provides an interface to Subversion. I install it on CentOS 5.4 which is already running as Web Server. I will use sohailriaz.com source to be maintain by Subversion and TRAC to track all development. Read the rest of this entry…

Today tip is how to retrieve PLESK admin password. The PLESK admin password is stored in /etc/psa/.psa.shadow file and you can see it by issuing following command.

cat /etc/psa/.psa.shadow

In PLESK root user is to manage server and admin user is to manage PLESK Control Panel with database (be remember there is no root for database in PLESK, use admin).

In this how to i will describe how to install memcached on your server with PHP Extension.  memcached is a high-performance, distributed memory object caching system, generic in nature, but intended for use in speeding up dynamic web applications by alleviating database load. My server is running CentOS 5.3 with CPanel. Read the rest of this entry…

In this how to i will describe how to install RED5 server on Centos 5.3. This how to can be used to install RED5 server on Centos 4 and Fedora 8 – 11 as well. RED5 is open source flash server written in java supports streaming audio/video, recording client streams, shared objects, live stream publishing etc. Read the rest of this entry…

In this howto i will describe how to install /configure full feature firewall on your server using Config Server Firewall (CSF)  script from http://www.configserver.com. Firewall are the basic need of every server now a days and people trying to protect there server by using different scripts but CSF gives all in one solution. The tools available for the implementing are either over-complex, not user friendly, or simply aren’t as effective as they could be. So that is the reason CSF developed. Read the rest of this entry…

This is a small script which we used to setup on our large cluster of webservers to see loadavg on terminal or putty title. This was very useful as you dont have to run top or w command to see what’s the current loadavg. It automatically updated the loadavg value every 2 seconds (it can be increased or decreased) on title of terminal or putty screen. Additionally it shows hostname and current time & date with loadavg. Read the rest of this entry…

In this howto i will describe how to execute MySQL commands on BASH shell and do more on results. The beauty of BASH is that you can developed a script which help you to do different, repeated and can execute different MySQL commands on result of previous MySQL command result. My primary example is to drop all tables in MySQL database using BASH shell. Read the rest of this entry…

In this howto i will describe how to install mytop package on CentOS 5.3. MyTOP is top command clone to monitor mysql performance including queries, threads etc. You can get source of it from here to build or you can use rpmforge repositories for pre-build rpms. The machine i used to demonstrte is in production and getting very high mysql access, its running on CentOS 5.3. Read the rest of this entry…

In this how to i describe how to bind MAC with IP to restrict users in your network to change their IP’s to bypass filtering. To ease the setup i will create small scripts to simplify our work. Here i will not describe how to config squid and how to run it. I assume you have already configure it. Read the rest of this entry…

In this how to i will describe how to create binary rpm (installable) using source rpm i.e *.src.rpm. Source rpm is collection of source files in tar.gz, patches and spec file. Spec file defines how the source code will compile with current machine, defining depencies and generate rpm from source rpm. Usually we do this when we need to have some custom changes to be made in required software. Read the rest of this entry…