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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%
HPC Cloud Storage
20.11.2013
Home »  HPC  »  Articles  » 
167780 4 100 4 466 4 832 12 s3ql_data_341 4 s3ql_data_671 4 101 4 467 4 833 36 s3ql_data_342 8 s3ql_data_672 4 102 4 468 4 834 44 s3ql_data_343 12 s3ql_data_673 4 103 4 469 4 835 16 s3ql_data_344 276 s
9%
Speed up Your Name Server with a MySQL Back End
23.07.2013
Home »  Articles  » 
 
Ubuntu Server 12.04 LTS Precise Pangolin, and I'm assuming you have built your server and patched it as follows before continuing with this exercise: primary:~#aptitude update && aptitude dist
9%
A Real-World Look at Scaling to the Amazon Cloud
04.10.2011
Home »  CloudAge  »  Articles  » 
 
to process, and the longest you want a client to wait for the result is 10 minutes. Without changing the number of instances, the average wait time for the requests in the queue is [4 x (3 + 6 + 9 + 12 + 15

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