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100%
Monitoring network computers with the Icinga Nagios fork
30.11.2025
Home
»
Archive
»
2010
»
Issue 1: System...
»
active_checks_enabled 1
22
passive_checks_enabled 0 23 check_command check_ssh 24 max_check_attempts
3
25
97%
A first look at Apache 2.4: Web server for the cloud
30.11.2025
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Archive
»
2011
»
Issue 3: Are yo...
»
) as a reverse proxy. Although Apache is already being used in this way by quite a few organizations, it's clear that the
2.2
series is not optimized for that use case, which is one reason why Nginx is seeing ... High performance and cloud suitability are the thrust of Apache 2.4. We give you the lowdown on transitioning your Apache HTTP Server from
2.2
to 2.4. ...
3
96%
ARP cache poisoning and packet sniffing
30.11.2025
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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
94%
A simple approach to the OCFS2 cluster filesystem
30.11.2025
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Archive
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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
86%
Checking password complexity with John the Ripper
30.11.2025
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2011
»
Issue 6: Perfor...
»
, 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
84%
Monitor your nodes with collectl
30.11.2025
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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
82%
An IT nomad's daily diary
30.11.2025
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2011
»
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
82%
Storage system with OpenSolaris and Comstar
30.11.2025
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Archive
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2010
»
Issue 0: Active...
»
stmf 23 # stmfadm add-view -t myfcserver -h myfcclient -n 1 600144f021ef4c0000004bcb
3
fb70001 This process provides a logical unit with a LUN of 1 for the client with a WWPN of 50:06:0b:
00:00
:c2
82%
Beyond monitoring: Mathematical load simulation in Perl
30.11.2025
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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
81%
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
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