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18%
Building a HPC cluster with Warewulf 4
04.04.2023
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Photo by Andrew Ly on Unsplash
timedatectl $ ssh n0001 [laytonjb@n0001 ~]$ timedatectl Local time: Sat 2022-12-17 11:31:26 EST Universal time: Sat 2022-12-17 16:31:26 UTC RTC time: Sat 2022-12
18%
Beyond monitoring: Mathematical load simulation in Perl
30.11.2025
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© kudryashka, 123RF.com
Model"; 11 $work = "ebiz-tx"; 12 $node1 = "WebServer"; 13 $node2 = "AppServer"; 14 $node3 = "DBMServer"; 15 $think = 0.0 * 1e-3; # as per test system 16 $dtime = 2.2 * 1e-3; # dummy service time 17 18
18%
Goodbye virtual machines, hello microVMs
06.10.2022
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Photo by Eric Froehling on Unsplash
20G 22,38080,52812,58080 kafka 3 weaveworks/ignite-ubuntu:20.04 weaveworks/ignite-kernel:5.12.18 2 2G 20G 22,2181,8080,9092,38080,52812,58080 spark 3 weaveworks
18%
Rethinking RAID (on Linux)
25.03.2021
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Lead Image © nikkikii, 123RF.com
[1] sdc1[0] 244065408 blocks super 1.2 [2/2] [UU] [=>...................] resync = 6.4% (15812032/244065408) finish=19.1min speed=198449K/sec bitmap: 2/2 pages [8KB], 65536KB chunk
18%
Monitoring your cluster with a home-grown OCF agent
30.11.2025
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© Aleksey Mnogosmyslov, 123RF.com
an Asterisk PBX as an HA resource 07 # 08 # Authors: Martin Gerhard Loschwitz 09 # Florian Haas 10 # 11 # Support: linux-ha@lists.linux-ha.org 12 # License: GNU General Public
18%
Verifying your configuration
05.02.2023
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Lead Image © Kritiya Sumpun, 123RF.com
script (Listing 2) are located. Listing 1 Dockerfile_ServerBase FROM ubuntu:22.04 ENV container docker # Don't start any optional services except for the few we need. RUN find /etc
18%
Linux Local and Network Filesystems
07.01.2024
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 loop /snap/core22/864 loop15   7:15   0  12.3M  1 loop /snap/snap-store/959 loop16   7:16   0  73.9M  1 loop /snap/core22/817 loop17   7:17   0 349.7M  1 loop /snap/gnome-3-38-2004/140 loop18
18%
TCP Stealth hides open ports
10.04.2015
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Lead Image © momo5287, 123RF.com
submitted his master's thesis on the subject of TCP Stealth in 2014 [12]. If you have been following the port knocking scenario for a few years, you might remember SilentKnock [13]. The project uses the same
18%
A web application with MongoDB and Bottle
14.03.2013
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© Egor Arkhipov, 123RF.com
>My little Bottle example 06 07 08 09

Hi World..here is my little survey!

10 11 12 What is your favorite club?
13
18%
Data acquisition with shell tools
30.11.2025
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Dmitriy Syechin, 123RF
clear 03 while true 04 do 05 echo "New record" 06 maxrecord=`ls -1 *.dat | sort | tail -1 | cut -d. -f 1` 07 newrecord=$(echo $maxrecord + 1 | bc ) 08 width=`echo $newrecord | wc -c` 09 10 ... 11 12

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