Disguising your server signature is always a good idea as you wont reveal the operating system to potential script kiddies and hackers.
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By Graeme Merral : Open source has brought a lot more than Linux to the computing world. It has also given us PHP and MySQL. According to Graeme, PHP and MySQL are the world’s best combination for creating data-driven sites. In the first installment of this three-lesson tutorial, our Kiwi guide covers everything you need to know to begin developing database hubs. He gives instructions for installation on both Unix and Windows, and then goes on to show some simple scripts that will insert information into a database and display that data on a Web page.
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Simple Shell commands for Informational purposes
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RKHunter also known as RootKit Hunter is a scanning tool to ensure you for about 99.9% that you don’t have any rootkits, backdoors, and local exploits but running tests and e-mailing you results.
Continue reading How To Install RKHunter
chkrootkit: shell script that checks system binaries for rootkit modification.
Continue reading How To Install CHKROOTKIT
BFD is a modular shell script for parsing applicable logs and checking for authentication failures.
Continue reading Install BFD (Brute Force Detection)
Telnet should be disabled, and you should use SSH. Telnet sends password in plain text, and ‘crackers/hackers’ can obtain these passwords easily compared to SSH, and then takeover your dedicated web server.
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SSH Protocol 1 based systems are facing many automated “root kits”.
As a result to step up the security Protcol 2 should be enabled as soon as possible.
Continue reading Force the use of SSH protocol 2
Logwatch is a customizable log analysis system.
Logwatch parses through your system’s logs for a given period of time and creates a report analyzing areas that you specify, in as much detail as you require. Logwatch is easy to use and will work right out of the package on most systems.
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