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7%
An IT nomad's diary
30.11.2025
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2011
»
Issue 5: Pen Te...
»
passphrase again:
08
Your identification has been saved in /home/UserName/.ssh/libra_id_rsa. 09 Your public key has been saved in /home/UserName/.ssh/libra_id_rsa.pub. 10 Creation successful 11
12
You may now
7%
Warewulf 4 – Python and Jupyter Notebooks
13.04.2023
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laytonjb laytonjb 4096 Mar 14 19:43 cache
12
-rw-rw-r-- 1 laytonjb laytonjb 11277 Mar 14 19:43 termcolor-
2.2.0
-pyhd8ed1ab_0.conda 4 drwxrwxr-x 4 laytonjb laytonjb 4096 Mar 14 19:43 termcolor-
2.2.0
-pyhd8ed1ab
7%
Error-correcting code memory keeps single-bit errors at bay
14.11.2013
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2013
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Issue 17: Cloud...
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. For example, a byte (8 bits) with a value of 156 (10011100) that is read from a file on disk suddenly acquires a value of
220
if the second bit from the left is flipped from a 0 to a 1 (11011100) for some
7%
The fine art of allocating memory
30.11.2025
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2012
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Issue 10: Traff...
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); i+= 4096) newblock[i] = 'Y';
12
printf("Allocated %d
MB
\n", allocation); 13 } 14 } Things are more interesting when memory is being used. Uncommenting line 11 does just that. The OOM
7%
Get the best out of your bandwidth with tc
30.11.2025
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2012
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Issue 10: Traff...
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ffff: ingress 05 # Bind the Ingress qdisc 06 tc qdisc add dev $DEV handle ffff: ingress 07 # First LAN Machine INBOUND
08
tc filter add dev $DEV parent ffff: protocol ip prio 1 u32 match ip dst
12
7%
Monitoring network computers with the Icinga Nagios fork
30.11.2025
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2010
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Issue 1: System...
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141.20.108.124 07 active_checks_enabled 1
08
passive_checks_enabled 0 09 max_check_attempts 3 10 check_command check-host-alive 11
7%
Warewulf Cluster Manager – Master and Compute Nodes
22.05.2012
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: Scientific Linux 6.2 2.6.32-
220
.4.1.el6.x86_64 kernel GigaByte MAA78GM-US2H motherboard AMD Phenom II X4 920 CPU (four cores) 8GB of memory (DDR2-800) The OS and boot drive are on an IBM DTLA
7%
Network monitoring with Icinga and Raspberry Pi
17.02.2015
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2015
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Issue 25: Safe...
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} 07 define service{
08
use generic-service 09 host_name w2k
12
srv 10 service_description Uptime 11 check_command check_nt!UPTIME
12
} 13 define service
7%
Storage system with OpenSolaris and Comstar
30.11.2025
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2010
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Issue 0: Active...
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/nsswitch.conf (Konfigurieren der Namensauflösung)
08
... 09 hosts files dns 10 ipnodes files dns 11 ...
12
# vi /etc/hosts 13 ::1 localhost 14 127.0.0.1 localhost 15 192.168.1.200 myiscsiserver myiscsiserver.local loghost 16
7%
Visualizing containers with clarity
29.09.2020
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2020
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Issue 59: Custo...
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-line operations. To install Dockly [3], you can choose one of two routes: with npm (see the "Installation by npm" box for that route) and in a Docker container. For context, on my laptop, about 43
MB
of file space
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