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24%
Lean Linux distribution for Kubernetes
26.01.2025
Home »  Archive  »  2025  »  Issue 85: Monit...  » 
Lead Image © joingate, 123RF.com
; instead, the focus is on starting all services needed for Talos operation (e.g., apid) and on guaranteeing the functionality of the Open Container Initiative (OCI)-compatible runtime environment
24%
Tuning loops – from loop unrolling to Duff's device
28.07.2025
Home »  Archive  »  2025  »  Issue 88: 5 Net...  » 
in reverse often produces less optimal code, but might open code to other approaches. Loop perforation Stochastic non-execution of some loop cycles. Suitable for some algorithms (e.g., neural
24%
Intrusion detection with Prelude
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Chittima Kasa, 123RF.com
and an open source variant, which the package sources of more or less any major distribution feature today. The download page [2] is rumored to offer the source code, but work was in progress when this article
24%
The fail2ban intrusion prevention framework
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Flavijus Piliponis, 123RF.com
accounts so that a shell login couldn't be used to access the server, but I was still more than aware that having a piece of software so readily open to abuse by brute force was far from ideal. So, fail2ban
24%
Debugging the Linux kernel with the Qemu emulator
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Daniela Mangiuca, 123RF.com
/build/linux-3.2/ gdb The gdb command opens the debugger session. To start, load the kernel code and symbols with: file vmlinux. If you see a no debug-symbols found message, you need to check the debug options
24%
An IP-based load balancing solution
30.11.2025
Home »  CloudAge  »  Articles  » 
arsgera, 123RF
is to use software load balancers. Linux Virtual Server Linux has a major advantage over other operating systems in this regard, because most of its commercial distributions (e.g., Red Hat and open
24%
Tracing applications with OProfile and SystemTap
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
© boing, Photocase.com
can call Strace: strace -e trace=open -o mutt.trace mutt This command line sends all open syscalls for the Mutt application to the /tmp/mutt.trace output file. Then, you can easily grep
24%
Workshop: Getting web and mail servers ready for IPv6
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© suze, Photocase.com
such as SixXs.net [1]. Alternatively, you can build an IPv6-in-IPv4 tunnel to the server you want to configure, which is possible within an OpenVPN connection. To allow this to happen, you need to ask your
24%
What tools do intruders use to
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© Wojciech Kaczkowski, 123RF.com
to download the files. Now open up a web browser and look at the results of the warnerbros.html file (see Figure 3). Figure 3: Metagoofil results. w
24%
Virus scanner and content filter with AD authentication
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Denis Makarov, 123RF.com
that leads to these weird log entries is described in the Squid wiki [4]. The title, "The gory details," sums it up: 1. The client opens a connection to the proxy and issues a request without any

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