Backdoors Techniques for building a hidden backdoor
Jul 09, 2008Backdoors give attackers unrestricted access to a zombie system. If you plan to stop the bad guys from settling in, you’ll be interested in this analysis of the tools they might use for building a private entrance.
more »Charly's Column The sys admin’s daily grind: WebCalendar
Jun 20, 2008Users log on to services such as SSH, ftp, SASL, POP3, IMAP, Apache htaccess, and many more using their names and passwords. These popular access mechanisms are a potential target for brute-force attacks. An attentive bouncer will keep dictionary attacks at bay.
more »Single-Packet Port Knocking Remote access security with single-packet port knocking
May 31, 2008If you are looking for an extra layer of remote access security, try single-packet port knocking.
more »Access Control Lists Working with Access Control Lists
May 31, 2008The ancient Linux permission system is often insufficient for complex production environments. Access Control Lists offer a flexible alternative.
more »SE Linux Mandatory Access Control (MAC) with SELinux
May 31, 2008SELinux provides a safer system through the powerful concept of mandatory access controls.
more »Sshutout and Fail2ban Fighting dictionary attacks with Sshutout and Fail2ban
May 31, 2008Services that require a username and password for login are potential targets for dictionary attacks. Sshutout and Fail2ban introduce time penalties for invalid attempts.
more »Two GnuTLS Bugfix Releases
May 21, 2008The GnuTLS project has published two bugfix releases to close several vulnerabilities and resolve an error capable of interrupting connections.
more »Code Analysis: Open Source Keeps on Improving
May 20, 2008The security and quality of Open Source software just keeps on improving, as code analysis by Coverity reveals.
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News
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So Long Neofetch and Thanks for the Info
Today is a day that every Linux user who enjoys bragging about their system(s) will mourn, as Neofetch has come to an end.
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Ubuntu 24.04 Comes with a “Flaw"
If you're thinking you might want to upgrade from your current Ubuntu release to the latest, there's something you might want to consider before doing so.
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Canonical Releases Ubuntu 24.04
After a brief pause because of the XZ vulnerability, Ubuntu 24.04 is now available for install.
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Linux Servers Targeted by Akira Ransomware
A group of bad actors who have already extorted $42 million have their sights set on the Linux platform.
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TUXEDO Computers Unveils Linux Laptop Featuring AMD Ryzen CPU
This latest release is the first laptop to include the new CPU from Ryzen and Linux preinstalled.
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XZ Gets the All-Clear
The back door xz vulnerability has been officially reverted for Fedora 40 and versions 38 and 39 were never affected.
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Canonical Collaborates with Qualcomm on New Venture
This new joint effort is geared toward bringing Ubuntu and Ubuntu Core to Qualcomm-powered devices.
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Kodi 21.0 Open-Source Entertainment Hub Released
After a year of development, the award-winning Kodi cross-platform, media center software is now available with many new additions and improvements.
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Linux Usage Increases in Two Key Areas
If market share is your thing, you'll be happy to know that Linux is on the rise in two areas that, if they keep climbing, could have serious meaning for Linux's future.
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Vulnerability Discovered in xz Libraries
An urgent alert for Fedora 40 has been posted and users should pay attention.