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17%
Getting your virtual machine dimensions right
04.12.2024
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Photo by ROCCO STOPPOLONI on Unsplash
increases. Figure 1 illustrates this for a two-socket system. Figure 1: A two-socket system (two NUMA nodes) showing local and remote RAM access from CPU0
17%
The RADOS object store and Ceph filesystem: Part 2
31.10.2025
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© Kateryna Pruchkovska, 123RF.com
? The first part of this workshop demonstrated how an additional node can be added to an existing cluster using ceph osd crush add 4 osd.4 1.0 pool=default host=daisy assuming that daisy is the hostname
17%
Open source ticket system
26.03.2025
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Photo by Toa Heftiba on Unsplash
://github.com/RotherOSS/otobo-docker.git --branch rel-10_1 --single-branch cd otobo-docker The --branch rel-10_1 option indicates the version; versions 11 (--branch rel-11_0), 10.1 (--branch rel-10_1), and 10.0 (--branch rel-10_0) were available
17%
Practical SELinux
31.10.2025
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© Pavel Ignatov, 123RF.com
allow -R -M xguest_irc policy_module(xguest_irc,1.0.0) require { type xguest_t; } ## ##

a ## Allow xguest users to use IRC ##

## gen_tunable(xguest_use_irc, true) tunable
17%
The best performance yet
26.01.2025
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Lead Image © Lucy Baldwin, 123RF.com
in combination with a card supporting the extended standard (SDXC). CQ mode was introduced in 2017 with version 6.0 of the SD specification [4], but although the Linux kernel had been supporting CQ mode for e
17%
Moving HPC to the cloud
31.10.2025
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© Zarko Cvijovic, 123RF.com
In the coming years, the cloud computing market is easily expected to exceed US$ 100 billion. Many organizations have found using the cloud has a clear advantage over in-house hardware. Indeed
17%
Compressed Archives for User Projects
11.08.2025
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will use that in a bit. Listing 1: Check Directory Content $ ls -lstar total 62310 31150 drwxrwxr-x  0 laytonjb laytonjb 31897275 Dec 31  1969 DATA1 31152 -rw-rw-r--  1 laytonjb laytonjb 31897275 Aug  2
17%
Create a high availability VM with  DRBD9  and Reactor
07.10.2025
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Photo by Emma Simpson on Unsplash
. Listing 1 DRBD Resource for VM # vi /etc/drbd.d/proxy.res resource proxy { device drbd0; disk /dev/drbd/proxy; meta-disk internal; on alice { address 10.42.0.100:7789; node-id 0
16%
Run rootless Podman containers as  systemd services
26.01.2025
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Photo by Geeky Shots on Unsplash
the configuration file /etc/sysctl.d/10-rootless-podman.conf, decreasing the lowest port unprivileged processes can listen on to 80: net.ipv4.ip_unprivileged_port_start=80 Then load the new kernel parameters
16%
Reducing the Attack Surface in Windows
04.12.2024
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Photo by Sander Sammy on Unsplash
the attack surface can be enabled on Windows Server from version 2012 and Windows 10 and work without the Defender portal or group policies, even on home computers (more on this later). Armed with Defender

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