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73%
Building a custom Cyberdeck
07.10.2025
Home »  Archive  »  2025  »  Issue 89: Autom...  » 
Lead Image © Lucy Baldwin, 123RF.com
and furious as rapid troubleshooting demands. It's time to give this project another try, but with the modern hardware of the 2020s! Figure 1: The diminutive
73%
Five special distros for system and network admins
28.07.2025
Home »  Archive  »  2025  »  Issue 88: 5 Net...  » 
Lead Image © Christos Georghiou, 123RF.com
for x86_64 PCs (910MB) and ARM64 systems (935MB). The hybrid image can be launched either from a CD, DVD, or USB stick. The x86_64 system works with both BIOS and UEFI firmware, whereas the ARMv8 variant
72%
Monitoring your cluster with a home-grown OCF agent
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Aleksey Mnogosmyslov, 123RF.com
that belong to $ASTRUNDIR, 22 # kill them. 23 if [ "$astcanary_pid" ]; then 24 for i in $astcanary_pid; do ocf_run kill -s KILL $astcanary_pid; done 25 fi 26 27 for dir in $ASTRUNDIR
72%
Network backup with Burp, Obnam, and Backshift
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Sergey Peterman, 123RF.com
version (1.3.0) dates back to January of this year, whereas the current version (1.3.6) was released at the end of May. The associated Windows client is available in the form of an installer file for 32
72%
Galera Cluster for MySQL
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Noel Powell, fotolia.com
MySQL-shared-compat-5.5.22-2.el6.x86_64.rpm rpm -i MySQL-client-5.5.22-1.el6.x86_64.rpm With CentOS 6, the following additional package is necessary: yum install openssl098e.x86_64 The easiest way
72%
Targeted defense against brute force attacks
30.11.2025
Home »  Archive  »  2011  »  Issue 3: Are yo...  » 
Andrii IURLOV, 123RF.com
version [1]. The sshguard tool also speaks IPv6, is released under the BSD license, is easy to set up, and works without a configuration file. Supported Services At the time of writing, sshguard
72%
An IP-based load balancing solution
30.11.2025
Home »  CloudAge  »  Articles  » 
arsgera, 123RF
use_regex = 0 22 load_monitor = rup 23 scheduler = rr 24 protocol = tcp 25 timeout = 6 26 reentry = 15 27 quiesce_server = 1 28 server webserver1 { 29 address
72%
Netcat – The admin's best friend
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
© Dmitry Rukhlenko, 123RF.com
seconds, for example: # nc -p 16000 -w 30 examplehost.tld 22 If firewalling is in place and you need to originate your connection from a specific IP address to open a port, then you can enter: # nc -s 1
72%
Successful automatic service detection
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© Dmitriy Denysov, 123RF.com
to find out more details about specific services. Listing 1 Nmap Command root@sandbox:~# nmap -v -A www.haribo.de ... Host www2.haribo.com (213.185.81.67) is up (0.011s latency). Interesting
72%
Connecting dissimilar IPsec implementations
30.11.2025
Home »  Archive  »  2011  »  Issue 4: Secure...  » 
© Yuri Arcurs, 123RF.com
over the Internet. The first RFCs on IPsec were drafted during the development of IPv6 and date back to 1995. The current version is described by RFC 4301 and later RFCs. The IPsec specification refers

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