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19%
Monitoring server hardware with the Nagios IPMI plugin
30.11.2025
Home »  Archive  »  2011  »  Issue 4: Secure...  » 
© Vladimir Nenov, 123RF.com
, the FreeIPMI package, and Awk. The plugin is available online [3]. After downloading, you can simply copy the plugin to the default plugin folder. You then need to define the command in commands.cfg to make
19%
Network analysis with Wireshark
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© Reinhard Eisele
for the type of analysis you want to perform. Capture filters use the Libpcap syntax. To filter for a specific MAC address, you would do the following in Libpcap syntax: ether host 00:25:4b:bd:24:94 However
19%
One metric to rule them all
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
/loadavg/ [3]: 1.00 0.97 0.94 1/1279 7743 The three additional numbers provided by Linux are the number of running processes (one in this case), the total number of processes, and the last process ID (PID
19%
I/O benchmarks with Fio
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© Kheng Ho Toh, 123RF.com
SUSE 11.3, the benchmark repository offers an up-to-date package [1]. Fio is also included with Fedora. The source code from the tarball or Git repository can be compiled with a simple make, assuming you
19%
Igel thin clients
30.11.2025
Home »  Archive  »  2010  »  Issue 2: Backup...  » 
Dana Bartekoske, 123RF
is supplied free of charge to customers, is currently available as version 3.06 for Windows and Linux. Figure 1: The Igel thin client UD3 series (source: Igel
19%
Troubleshooting SELinux
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Sapsiwai, Fotolia
user_u:system_r:httpd_t root 3728 1 2 10:49 ? 00:00:00 /usr/sbin/httpd 07 user_u:system_r:httpd_t apache 3730 3728 0 10:49 ? 00:00:00 /usr/sbin/httpd 08 ... The weird
19%
Exploring Nmap's scripting engine
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
is an interpreted language that is "powerful, fast, lightweight" [2]. It is probably most well known as the scripting language used by the popular game World of Warcraft (WoW) [3]; however, Lua is also used
19%
Introduction to OpenMP programming
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
© Frank Rohde, 123RF.com
[3] to solving the questions. Although not the most efficient or fastest method for solving the problem, it does illustrate how one can use OpenMP to parallelize applications. I will be using
19%
A Btrfs field test and workshop
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© Adrian Hillman, 123RF.com
. Enterprise-Level Features Btrfs is a copy-on-write (COW) filesystem. Whereas a filesystem like ext3 logs block changes in a journal, Btrfs always writes changes to a block at a new location on the disk
19%
Check your VoIP networks with SIPVicious and sngrep
30.11.2025
Home »  Archive  »  2025  »  Issue 90 VoIP N...  » 
Photo by Quino Al on Unsplash
(6192 bits), 774 bytes captured (6192 bits) Ethernet II, Src: 00:1a:2b:3c:4d:5e, Dst: 00:6f:7g:8h:9i:0j Internet Protocol Version 4, Src: 192.168.1.101, Dst: 192.168.1.104 User Datagram Protocol, Src Port

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