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I’ve already wrote about setting up a Linux transparent squid proxy system. However I’m getting lots of questions about Squid basic installation and configuration:
How do I install Squid Proxy server on CentOS 5 Liinux server?
Sure Squid server is a popular open source GPLd proxy and web cache. It has a variety of uses, from [...]
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Someone recently asked me a question:
How can I save time and script size by specifying a range of IP addresses or ports using iptables?
In old version of iptables IP address ranges are only valid in the nat table (see below for example). However newer version does support option that allows you to specify a range [...]
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It is true that connections to remote X Window servers should be always made over SSH. SSH supports X windows connections. So my task was allow X over ssh but block unprivileged X windows mangers TCP ports.
The first running server (or display) use TCP port 6000. Next server will use 6001 and so on upto [...]
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Network attached storage (NAS) allows using TCP/IP network to backup files. This enables multiple servers in IDC to share the same storage for backup at once, which minimizes overhead by centrally managing hard disks. NAS is scalable, high performance network solution. The main advantage is more hard disk storage space added to a network that [...]
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Explains how to monitor bandwidth with Linux iptables command.
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MySQL is popular for web applications and acts as the database component of the LAMP, MAMP, and WAMP platforms. Its popularity as a web application is closely tied to the popularity of PHP, which is often combined with MySQL.
MySQL is open source database server and by default it listen on TCP port 3306.
Task: [...]
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The domain name service provided by BIND (named) software. It uses both UDP and TCP protocol and listen on port 53. DNS queries less than 512 bytes are transferred using UDP protocol and large queries are handled by TCP protocol such as zone transfer.
i) named/bind server – TCP/UDP port 53
ii)Client (browser, dig etc) [...]
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