» ADMIN Magazine

100%

Monitoring network computers with the Icinga Nagios fork

30.11.2025

Home » Archive » 2010 » Issue 1: System... »

16 monday 07:00-17:00 17 tuesday 07:00-17:00 18 wednesday 07:00-17:00 19 thursday 07:00-17:00 20

77%

I/O benchmarks with Fio

30.11.2025

Home » Archive » 2011 » Issue 5: Pen Te... »

Drive: http://kb.fusionio.com/KB/a29/verifying-linux-system-performance.aspx IOPS section in the I/O performance measurement: http://www.thomas-krenn.com/de/wiki/Messen_von_I/O_Performance#IOPS (in German

71%

Connecting dissimilar IPsec implementations

30.11.2025

Home » Archive » 2011 » Issue 4: Secure... »

:31:40: [6694] DEBUG: (lifebyte = 0:0) 04 2011-01-28 17:31:40: [6694] DEBUG: enctype = 7:7 05 2011-01-28 17:31:40: [6694] DEBUG: (encklen = 128:128) 06 2011-01-28 17:31:40: [6694] DEBUG: hashtype = SHA:SHA 07

69%

High-availability workshop: GFS with DRBD and Pacemaker

30.11.2025

Home » Archive » 2012 » Issue 07: Xen v... »

resource: sudo mkfs.gfs2 -p lock_dlm -j2 -t pcmk:pcmk resource resource is the DRBD resource device node – for example, /dev/drbd/by-res/disk0/0 . What's missing now is the filesystem resource

68%

Beyond monitoring: Mathematical load simulation in Perl

30.11.2025

Home » Archive » 2011 » Issue 6: Perfor... »

Model"; 11 $work = "ebiz-tx"; 12 $node1 = "WebServer"; 13 $node2 = "AppServer"; 14 $node3 = "DBMServer"; 15 $think = 0.0 * 1e-3; # as per test system 16 $dtime = 2.2 * 1e-3; # dummy service time 17 18

67%

Get the best out of your bandwidth with tc

30.11.2025

Home » Archive » 2012 » Issue 10: Traff... »

can also handle this situation perfectly. Of course, this approach could be applied to port 80 (for HTTP traffic) or port 25 (for SMTP traffic) with minor changes. Another scenario for tc might be when

67%

Julia: A new language for technical computing

30.11.2025

Home » Archive » 2012 » Issue 10: Traff... »

.47 1,336.37 2,383.80 225.23 1.55 parse_int 1.44 16.50 815.19 6,454.50 337.52 2.17 quicksort 1.49 55

67%

An IP-based load balancing solution

30.11.2025

Home » CloudAge » Articles »

virtual webs.test.com { 15 active = 1 16 address = 192.168.1.250 eth0:0 17 vip_nmask = 255.255.255.0 18 port = 80 19 send = "GET / HTTP/1.0\r\n\r\n" 20 expect = "HTTP" 21

Search