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A watchdog for every modern *ix server
25.09.2023
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Photo by Sudhith Xavier on Unsplash
forwarding the 20 # user locale env variables or we get warnings such as: 21 # bash: warning: setlocale: LC_ALL: cannot change locale 22 RUN sed -i -e 's/^AcceptEnv LANG LC_\*$/#AcceptEnv LANG LC_*/' /etc
16%
Let the editor wars begin!
11.10.2016
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Lead Image © Kirill Makarov, 123RF.com
, interesting, and worthwhile exercise. I argue that systems administration needs a command-line editor, because it can be used even if X windows isn't working or isn't installed on the servers. Knowing how
16%
HPC fundamentals
16.08.2018
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Lead Image © Kasia biel, 123RF.com
seconds set connect timeout (default is 10 sec) -u seconds set command timeout (no default) -f n use fanout of n nodes -w host,host,... set target node list on command line -x
16%
The Swiss Army knife of fault management
30.11.2025
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© Dmitry Rukhlenko, 123RF.com
="walk" value="true"/> 22 23 24 25
16%
Single sign-on like the big guys
20.06.2022
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Lead Image © Sergey Nivens, 123RF.com
_DB_PASSWORD=SOME_DB_PASSWORD 15 command: ["start-dev"] 16 17 postgres: 18 container_name: postgres 19 image: postgres:14 20 environment: 21 - POSTGRES_PASSWORD=SOME_DB_PASSWORD 22
16%
Policy rulesets in cloud-native environments
06.10.2022
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Lead Image © bloomua, 123RF.com
": [ 16 { 17 "GroupName": "RND-Admins" 18 } 19 ] 20 }, 21 { 22 "Path": "/", 23 "UserName": "guido", 24 "Arn": "arn:aws:iam::123456789:user/guido", 25
16%
Web applications with Julia
26.01.2025
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Lead Image © sony sivanandan, 123RF.com
22 ztable = join(ztable) 23 p = plot([f1 f2]; xrange=(0, 1), lc=[lc1 lc2], lw=2, xlabel="x", ylabel="y", label=["cos($c x)" "$(t)tan(x)"]) 24 show(io, MIME"image/png"(), p) 25
16%
Understanding the Status of Your Filesystem
18.06.2014
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  (  0.05%)  (  0.05% cumulative)    [   1-   2 days]:      0  (  0.00%)  (  0.05% cumulative)    [   2-   4 days]:   4675  (  1.20%)  (  1.25% cumulative)    [   4-   7 days]:    215  (  0.06%)  (  1.31% cumulative)    [   7
16%
Develop a simple scanning application with the NAPS2 SDK
27.05.2025
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ScanOptions 21 { 22 Device = device, 23 PaperSource = PaperSource.Feeder, 24 PageSize = PageSize.A4, 25 Dpi = 300 26 }; 27 28 var images = new List
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An IT nomad's diary
30.11.2025
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© Jasmin Merdan, 123RF.com
-tuxgeek.rhcloud.com,174.129.129.190' (RSA) to the list of known hosts. 20 Enter passphrase for key '/home/tscherf/.ssh/libra_id_rsa': 21 Confirming application spaceuploader is available 22 Attempt # 1 23 24 Success

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