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9%
Monitoring virtualization environments with Nagios and Icinga
30.11.2025
Home »  Archive  »  2010  »  Issue 2: Backup...  » 
Sergej Khackimullin, 123RF
technologies. Besides Xen, KVM, and VirtualBox, Libvirt also supports OpenVZ, VMware ESX, and GSX. The nagios-virt [12] tool was written on the basis of this API and helps administrators configure host
9%
From Out of the Blue
30.11.2025
Home »  Archive  »  2011  »  Issue 3: Are yo...  » 
], which can yield a surprising number of vulnerabilities in a short amount of time. Many of the best "smart" (protocol- or format-aware) fuzzers, such as Sulley [11] or Peach [12] are well documented
9%
Intruder detection with tcpdump
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Monika Wisniewska, 123RF.com
: Figure 4: Header bytes 12-15. # tcpdump -n -r dumpfile.lpc -c 10 'tcp[13] == 18' and host 172.16.183.2 Figure 5 is an example what this command returns. When capturing data with tcpdump, you can
9%
Nagios author Ethan Galstad
30.11.2025
Home »  Archive  »  2011  »  Issue 4: Secure...  » 
of Nagios and I released it. Honestly, I didn't think more than 10 or 12 people would use it. I didn't think anyone would find it interesting, but it started taking off and becoming very popular, and that
9%
Quick patches with Ansible
27.05.2025
Home »  Archive  »  2025  »  Issue 87: Light...  » 
Lead Image © David Crockett, Fotolia.com
_ssh_private_key_file: /home/treuss/.ssh/pihole 09 ansible_user: thomas 10 # Gitea 11 raspi03: 12 ansible_ssh_private_key_file: /home/treuss/.ssh/raspi03 13 ansible_user: thomas 14
9%
Building a port scanner in Python
28.07.2025
Home »  Archive  »  2025  »  Issue 88: 5 Net...  » 
Lead Image © Leo Blanchette, 123RF.com
(socket.timeout, ConnectionRefusedError): 12 pass 13 14 def port_scanner(host, start_port, end_port, threads=10): 15 print(f"Scanning {host} from port{start_port} to {end_port}") 16 17 for port
9%
News for Admins
07.10.2025
Home »  Archive  »  2025  »  Issue 89: Autom...  » 
 
AMD64 and ARM64 HTTP Boot support in Debian Installer and Live images for UEFI/U-Boot systems Upgraded software stack: Gnome 48, KDE Plasma 6, Linux kernel 6.12 LTS, GCC 14.2, Python 3
9%
News for Admins
28.11.2022
Home »  Archive  »  2022  »  Issue 72: OpenS...  » 
 
different chip designs are planned, which will be optimized for different applications. "The SkyWater foundry will produce the chips in the form of 200-mm discs of patterned silicon, called wafers
9%
Network performance in the world's favorite data center
05.02.2023
Home »  Archive  »  2023  »  Issue 73: Datab...  » 
Lead Image © Lucy Baldwin, 123RF.com
for Linux. That is where the easy part ends, with available instance configurations reaching to 170Gbps with a single card (and 200Gbps with two cards or the Elastic Fabric Adapter) [2]. Verifying
9%
The role of open source in enterprise storage solutions
08.10.2015
Home »  Archive  »  2015  »  Issue 29: Rescu...  » 
Lead Image © Swapnil Bhartiya
for them to take it and then scale it for their environment and make it production ready. Then, they share this code with others. Facebook has open sourced more than 200 projects and they are projects

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