We the internet users are always in search for speed and faster access, so as a site owner must provide both these to survive in this field of business. The Apache servers are most commonly used for internet So various tweaks are available for such servers, I am introducing one such module that will help you to have high speed in loading your sites, mod_pagespeed.
Log files are very important and valuable tool available in Linux system security. Logrotate is a log file manager program which provides the administrator with an up-to-date record of events taking place on the system. It may also be used to backup log files. It regularly rotates log files by removing old one from the system and creating new log files as the log files grow too large. This rotation is based on the age of the file, file size and can also set cron utility. It can also be used to compress log files and to configure emails to user when they are rotated. The point of log file rotation is to prevent log files from growing indefinitely.
Run-level is a preset operating state on a Unix-like operating system. A run-level is a software configuration of the system that allows only a selected group of processes to exist. A system can be booted into (i.e., started up into) any of several run-levels, each of which is represented by a single digit integer. Each run-level designates a different system configuration and allows access to a different combination of processes (i.e., instances of executing programs).
mod_fcgid was introduced to be binary compatible with FastCGI, but with better control over spawning processes. It is a high performance alternative to mod_cgi or mod_cgid, which starts a sufficient number instances of the CGI program to handle concurrent requests, and these programs remain running to handle further incoming requests.
mod_evasive is a detection and network management tool, and can be easily configured to talk to IP chains, firewalls,
routers, etc . Detection is performed by creating an internal dynamic hash table of IP Addresses and URLs, and denying
any single IP address that matches the criteria.
#tar xzf mod_evasive_1.10.1.tar.gz
#apxs -cia mod_evasive20.c
LoadModule evasive20_module /usr/lib/httpd/modules/mod_evasive20.so