This howto describe to split big files / directories into multiple archives under Linux using RAR software which can be used to backup, copy onto CDs or download into small chunks where large files downloading is limit to size etc. These files then can be downloaded to any machine to re-assemble again and extract data from it. RAR software developed by RARLAB (http://www.rarlab.com) and have Linux, Windows and MacOS versions. Read the rest of this entry…

This howto describe how to install yum on CentOS 5.2 VPS. VPS (Virtual Private Servers) usually comes cheap to install, administrate and manage LINUX with administrated (root) priviliges. In this way you have fully fuctional LINUX available to work on it. But some of the host provide very basic template of CentOS 5.2 for VPS which only install minimal amount of software to run these VPS. I came across one of my VPS with very minimal installation and which doesn’t have YUM install in it. YUM (Yellow Update Manager) is a very necessary tool now a days to install any software from internet using online repository without getting any getting problems of dependencies. Read the rest of this entry…

This howto describe step by step method to install SQUID 3 server as Anonymous Proxy. An anonymous proxy is a tool that attempts to make activity on the Internet untraceable. It accesses the Internet on the user’s behalf, protecting personal information by hiding the source computer’s identifying information. Simply say to hide your IP. Read the rest of this entry…

This document describes how to attach modems to a Linux box and allow it to receive calls to connect users to the network. Its like being your own ISP (Internet Service Provider). If your Linux box is connected to the Internet, then the users will also be connected to the Internet. Your Linux box becomes a router. This is also known as RAS (Remote Access Services) in the Microsoft world. In the Linux world its called PPP (Point to Point Protocol). Read the rest of this entry…

In this howto we will learn how to build a Dynamic DNS Server. Normally when we configure DNS, we use static entries to resolve any FQDN. If we are using DHCP in our network which gives dynamic IPs to every computer that turns on or requests one, then it is not possible to configure DNS statically. For that we should configure our DNS with DHCP in a manner that whenever a computer gets a new IP, its FQDN will be automatically updated with the new IP in DNS. Read the rest of this entry…