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Creation time
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Article (Print)
(27)
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100%
Monitoring network computers with the Icinga Nagios fork
30.11.2025
Home
»
Archive
»
2010
»
Issue 1: System...
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active_checks_enabled 1
22
passive_checks_enabled 0 23 check_command check_ssh 24 max_check_attempts
3
25
99%
ARP cache poisoning and packet sniffing
30.11.2025
Home
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Archive
»
2011
»
Issue 6: Perfor...
»
Destination MAC address Listing 1 Nemesis arp Packets 01 $ while true 02 > do 03 > sudo nemesis arp -v -r -d eth0 -S 192.168.1.2 -D 192.168.1.133 -h
00:22
:6E:71:04:BB -m
00
:0C:29:B2
96%
A simple approach to the OCFS2 cluster filesystem
30.11.2025
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Archive
»
2010
»
Issue 1: System...
»
_dlm] root 3467 7 0 20:07 ?
00:00:00
[o2net] root 3965 7 0 20:24 ?
00:00:00
[ocfs2_wq] root 7921 7 0
22
:40 ?
00:00:00
[o2hb-BD5A574EC8] root 7935 7
96%
Using Expect scripts to automate tasks
31.10.2025
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Archive
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2012
»
Issue 12: NAS S...
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conservatively originally 21 if {$force_conservative} {
22
set send_slow {1 .1} 23 proc send {ignore arg} { 24 sleep .1 25 exp_send -s -- $arg 26 } 27 } 28
88%
Checking password complexity with John the Ripper
30.11.2025
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Archive
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2011
»
Issue 6: Perfor...
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, 378501 c/s virtual 18 Long: 1063K c/s real, 1063K c/s virtual 19 20 Benchmarking: LM DES [64/64 BS]... DONE 21 Raw: 8214K c/s real, 8214K c/s virtual
22
23 Benchmarking: NT MD4 [Generic 1x]... DONE 24
86%
Monitor your nodes with collectl
30.11.2025
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Archive
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2012
»
Issue 09: Windo...
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YZCD 03 # DaemonOpts: -f /var/log/collectl -r
00:00
,7 -m -F60 -s+YZCD --iosize 04 ################################################################################ 05 # Collectl: V
3
.6.1-4 HiRes: 1 Options
86%
Give your servers the once over with Nmap
31.10.2025
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Archive
»
2012
»
Issue 11: Cloud...
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.nmap.org (64.13.134.52): Not shown: 994 filtered ports PORT STATE SERVICE VERSION
22
/tcp open ssh OpenSSH 4.
3
(protocol 2.0) 25/tcp closed smtp
86%
Beyond monitoring: Mathematical load simulation in Perl
30.11.2025
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Archive
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2011
»
Issue 6: Perfor...
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Model"; 11 $work = "ebiz-tx"; 12 $node1 = "WebServer"; 13 $node2 = "AppServer"; 14 $node
3
= "DBMServer"; 15 $think =
0.0
* 1e-
3
; # as per test system 16 $dtime =
2.2
* 1e-
3
; # dummy service time 17 18
86%
Tested: Autoconfiguring IPv6 clients
30.11.2025
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2011
»
Issue 5: Pen Te...
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, the MAC address (e.g.,
00:11:22
:33:44:55) is split down the middle, and two bytes containing FF:FE are inserted. This gives you 64 bits. If the basis is a globally unique address (which should be the case
85%
An IT nomad's daily diary
30.11.2025
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2011
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Issue 6: Perfor...
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magazine [
3
]. In other words, the many Cobbler system records are really the biggest problem. Just to jog your memory: Using system records, Cobbler can create an individual PXE configuration file for each
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