Perl: Link Spam A Perl script protects forums against spam

Sep 30, 2006

Spammers don’t just send email. They exploit discussion forums and blogs, posting pseudo-messages full of links to dupe search engines. A Perl script cleans up the mess.

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Charly's Column The Sysadmin’s Daily Grind: HTTP Antivirus Proxy

Aug 31, 2006

Browsers live in continual danger of compromise by a malicious site. An intermediate proxy combined with a virus scanner can help.

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Books

Aug 31, 2006
Collaboration Explained Linux Patch Management Software Security: Building Security In...
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Bot_Attack An insidious spam botnet attacks Charly

Jul 31, 2006

While going about his normal duties, Linux Magazine author Charly Kühnast was hit with a mean attack. Charly’s separate anti-spam server, which sits in front of his mail server, saved him from the mail storm.

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How to Write a Rootkit Rootkits for the Linux kernel 2.6

Jul 31, 2006

Today’s rootkits infiltrate a target system at kernel level, thus escaping unwanted attention from administrators. Read on for a practical look at how a kernel rootkit really works.

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Charly's Column The Sysadmin’s Daily Grind: Policyd

Jun 30, 2006

The Postfix Policyd plugin fights spam using techniques such as greylisting, source detection, volume measurements, blacklisting, and HELO rotation detection.

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Sendmail Strategies Fighting spam and viruses with Sendmail

Jun 30, 2006

A structured approach to Sendmail helps to maximize your spam and virus protection.

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Books

Jun 30, 2006
Internet Forensics Spring Into Linux Time Management for System Administrators ...
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