Charly's Column TUNNELING THE DUTCH BEACHESSep 30, 2006
What does Charly’s recent two-week vacation in Holland have in common with an SSH session? Nothing at all, at first sight. And therein lies a tale.more »
Perl: Link Spam A Perl script protects forums against spamSep 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.more »
Charly's Column The Sysadmin’s Daily Grind: HTTP Antivirus ProxyAug 31, 2006
Browsers live in continual danger of compromise by a malicious site. An intermediate proxy combined with a virus scanner can help.more »
Bot_Attack An insidious spam botnet attacks CharlyJul 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.more »
How to Write a Rootkit Rootkits for the Linux kernel 2.6Jul 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.more »
Charly's Column The Sysadmin’s Daily Grind: PolicydJun 30, 2006
The Postfix Policyd plugin fights spam using techniques such as greylisting, source detection, volume measurements, blacklisting, and HELO rotation detection.more »
The bug was introduced back in 2009 and has been lurking around all this time.
The new release deprecates the sshd_config UsePrivilegeSeparation option.
Lives on as a community project
Five new systems join Dell XPS 13 Developer Edition that come with Ubuntu pre-installed.
The Skype Linux client now has almost the same capabilities that it enjoys on other platforms.
At CeBIT 2017, OpenStack Day will offer a wide range of lectures and discussions.
A major setback for the Linux desktop.
Improved support for GPU in virtualization.
News site for the openSUSE community falls victim to a Wordpress exploit.
The source code is available online.