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100%

Monitor your nodes with collectl

30.11.2025

Home » Archive » 2012 » Issue 09: Windo... »

In KBOut PktOut 05 3 1 1421 2168 0 0 41000 90 0 2 0 0 06 3 2 1509 2198 64 2 49712 109 0 2 0 0 07 3 2 1403 2192 ... 9

99%

Network backup with Burp, Obnam, and Backshift

30.11.2025

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

Estimate For example, burp -s l shows you the existing backup on the server ("list"), whereas burp -a l -b 2 lists all the files in backup number 2. If you want to see all the files in all

99%

Storage system with OpenSolaris and Comstar

30.11.2025

Home » Archive » 2010 » Issue 0: Active... »

stmf 23 # stmfadm add-view -t myfcserver -h myfcclient -n 1 600144f021ef4c0000004bcb3fb70001 This process provides a logical unit with a LUN of 1 for the client with a WWPN of 50:06:0b:00:00:c2

99%

Checking password complexity with John the Ripper

30.11.2025

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

-incremental:lanman passfile.txt 02 Loaded 2 passwords with 2 different salts (FreeBSD MD5 [32/64]) 03 guesses: 0 time: 1:04:04:08 (3) c/s: 10927 trying: gmugoky - gmugok2 04 guesses: 0 time: 1:09:25:10 (3

98%

RAM revealed

30.11.2025

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

chips with 128Mx8 organization (1-Gb chips) 5.132 2.57 AL28M72A8BJH9S 1 DDR3, Registered, ECC, 1 rank 2.241 2.24 AQ12M72E8BKH9S 4

95%

Script utilities in depth: grep, awk, and sed

30.11.2025

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

, appearing in alphabetical order but allowing intervening letters, you can use the search expression: "a.*e.*i.*o.*u" This would match lines 1, 2, and 3. If you want lines containing all five vowels in order

95%

Workshop: Container virtualization with LXC on Ubuntu 10.04

30.11.2025

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

lxc.cgroup.devices.allow = c 1:9 rwm 25 lxc.cgroup.devices.allow = c 1:8 rwm 26 lxc.cgroup.devices.allow = c 136:* rwm 27 lxc.cgroup.devices.allow = c 5:2 rwm 28 # rtc 29 lxc.cgroup.devices.allow = c

95%

The fine art of allocating memory

30.11.2025

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

://lxr.free-electrons.com/source/mm/oom_kill.c?v=2.6.32 mm/oom_kill.c: http://lxr.free-electrons.com/source/mm/oom_kill.c?v=3.2 The Author Federico Lucifredi is the maintainer of man(1

94%

Intruder detection with tcpdump

30.11.2025

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

: 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

93%

I/O benchmarks with Fio

30.11.2025

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

tests and take some of the load off the SSD with the fstrim command from a recent util-linux package [9]. The workload from Listing 3, which measures the IOPS with a variable block size between 2Kb

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