Looking for signs of a network attack
CAT AND MOUSE
If you think your systems are too obscure for an attacker to worry about, think again. Today’s intruders are happy for any victim.
Are your doors locked? Is you data safe? In the beginning, the first network intruders were just playing around. They slipped in just to prove they could – as an intellectual challenge or maybe a chance to feel brave. Times have changed, though, and if you care about security, you’d better change with them. Today’s systems hold critical information with a cash value – credit card numbers, medical records, email addresses. And the system itself can become a tool of the intruder. Cyber-criminals employ sophisticated techniques to commandeer perfectly ordinary computers for forwarding spam and launching denial of service attacks. And the teenage vandals? They are still out there also. To stay ahead of them all, you’ll need to know what they know – and you’ll need to know how to look for their tracks. We’ll show you what to look for in this month’s Detecting Intruders cover story.
Buy this article as PDF
(incl. VAT)
Buy Linux Magazine
Subscribe to our Linux Newsletters
Find Linux and Open Source Jobs
Subscribe to our ADMIN Newsletters
Support Our Work
Linux Magazine content is made possible with support from readers like you. Please consider contributing when you’ve found an article to be beneficial.

News
-
Linux Mint 20 Reaches EOL
With Linux Mint 20 at its end of life, the time has arrived to upgrade to Linux Mint 22.
-
TuxCare Announces Support for AlmaLinux 9.2
Thanks to TuxCare, AlmaLinux 9.2 (and soon version 9.6) now enjoys years of ongoing patching and compliance.
-
Go-Based Botnet Attacking IoT Devices
Using an SSH credential brute-force attack, the Go-based PumaBot is exploiting IoT devices everywhere.
-
Plasma 6.5 Promises Better Memory Optimization
With the stable Plasma 6.4 on the horizon, KDE has a few new tricks up its sleeve for Plasma 6.5.
-
KaOS 2025.05 Officially Qt5 Free
If you're a fan of independent Linux distributions, the team behind KaOS is proud to announce the latest iteration that includes kernel 6.14 and KDE's Plasma 6.3.5.
-
Linux Kernel 6.15 Now Available
The latest Linux kernel is now available with several new features/improvements and the usual bug fixes.
-
Microsoft Makes Surprising WSL Announcement
In a move that might surprise some users, Microsoft has made Windows Subsystem for Linux open source.
-
Red Hat Releases RHEL 10 Early
Red Hat quietly rolled out the official release of RHEL 10.0 a bit early.
-
openSUSE Joins End of 10
openSUSE has decided to not only join the End of 10 movement but it also will no longer support the Deepin Desktop Environment.
-
New Version of Flatpak Released
Flatpak 1.16.1 is now available as the latest, stable version with various improvements.