IMAP spam filter Intelligent filtering with Qmail, SpamAssassin, and MaildropJul 10, 2008
We’ll show you a custom solution for moving spam to a separate folder and adding new spam signatures to SpamAssassin.more »
Isof Looking for intruders with lsofJul 10, 2008
Track down and expose intruders with the versatile admin tool lsof.more »
Backdoors Techniques for building a hidden backdoorJul 09, 2008
Backdoors 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: WebCalendarJun 20, 2008
Users 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 knockingMay 31, 2008
If you are looking for an extra layer of remote access security, try single-packet port knocking.more »
Access Control Lists Working with Access Control ListsMay 31, 2008
The 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 SELinuxMay 31, 2008
SELinux provides a safer system through the powerful concept of mandatory access controls.more »
Sshutout and Fail2ban Fighting dictionary attacks with Sshutout and Fail2banMay 31, 2008
Services that require a username and password for login are potential targets for dictionary attacks. Sshutout and Fail2ban introduce time penalties for invalid attempts.more »
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.
One out of three virtual machines on Microsoft Azure Cloud run Linux.
The form factor of the board makes it a drop-in replacement for Raspberry Pi.
Makes it easier for customers to move workloads into container-centric applications.
SUSE’s answer to container-centric operating systems.
Linux 4.9 is the biggest release in terms of number of commits.
The latest version of the official RHEL clone is here.