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16%
Profiling Python code
30.01.2020
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2020
»
Issue 55: AWS L...
»
%|
3
| 2|
3
.50475e-05| 1.75238e-05| 0.
00
%|import platform 4| 1| 2.19345e-05| 2.19345e-05| 0.
00
%|from time import clock (call)| 1| 2.67029e-05| 2.67029e-05| 0.
00
16%
Monitoring network computers with the Icinga Nagios fork
30.11.2025
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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
16%
ARP cache poisoning and packet sniffing
30.11.2025
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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
16%
Pen Testing with netcat
14.05.2013
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the net start command to get a list of services running (Figure
3
): >net start Figure
3
: Output from the net start command. Several services
16%
Greylisting with Postgrey
22.06.2012
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: Qmail Delivery Retry Events Delivery Attempt Seconds D-HH:MM:SS 1 0 0-
00:00:00
2 400 0-
00
:06:40
3
1600 0-
00
:26:40 4
16%
A simple approach to the OCFS2 cluster filesystem
30.11.2025
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2010
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Issue 1: System...
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_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
16%
Using Expect scripts to automate tasks
31.10.2025
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2012
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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
16%
Speed up your MySQL database
11.02.2016
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2016
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Issue 31: Tunin...
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.40 <- < 71% idle > 0 1.
00
0.
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0.37 0.
00
0.
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0.06 0.
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98.57 1 100.
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0.
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0.
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2
3
.77 0.
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16%
Understanding the Status of Your Filesystem
18.06.2014
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( 0.08%) ( 99.93% cumulative) [2920-3650 days]: 136 ( 0.04%) ( 99.97% cumulative) [3650-4380 days]:
3 ( 0.00
%) ( 99.97% cumulative) [4380-5110 days]: 122 ( 0.03%) (100.
00
% cumulative) [5110
15%
Process, Network, and Disk Metrics
26.02.2014
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-sent:
22
,334 (total) 0/s (Per-Sec) pkts-recv: 68,018 (total) 2/s (Per-Sec) lo Bytes-sent: 2.55 K (total) 0.
00
B/s (Per-Sec) Bytes
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