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16%
Tuning SSD RAID for optimal performance
09.08.2015
Home »  Archive  »  2015  »  Issue 28: SSD RAID  » 
Lead Image © ELEN, Fotolia.com
to form a page (e.g., 8KB). Several pages then form a block (~2MB). At this level, the first peculiarity of flash memory already comes to light: Whereas new data can be written to unused pages, subsequent
16%
Using the MQTT IoT protocol for unusual but useful purposes
03.12.2015
Home »  Archive  »  2015  »  Issue 30: OpenD...  » 
Lead Image © Heiko Küverling, 123RF.com
. Clients don't actually know whether they really see all the messages that arrive at the broker; the broker ACLS decide this. Messages transport payloads; payload data can also be binary and be up to 256MB
16%
Monitoring network computers with the Icinga Nagios fork
17.06.2011
Home »  Archive  »  2010  »  Issue 1: System...  » 
 
community needs more closely and to integrate patches more quickly. The first stable version, 1.0, was released in December 2009, and the version counter has risen every couple of months ever since. Icinga
16%
ZAP provides automated security tests in continuous integration pipelines
23.08.2017
Home »  Archive  »  2017  »  Issue 41: Kuber...  » 
Lead Image © Galina Peshkova, 123RF.com
longer, but certainly you won't be too put out by server specifications at first. However, you might want to up the RAM and CPU specs for CI integration. Sadly, sometimes 512MB of RAM even on Linux boxes
16%
How Old is That Data?
20.04.2017
Home »  HPC  »  Articles  » 
percent of requests >76 percent of files are opened by just one client Only 5 percent of files are opened by multiple clients, and 90 percent of those are read just once The big Vegas finish
16%
Employing DNS in network security
02.08.2022
Home »  Archive  »  2022  »  Issue 70: Defen...  » 
Photo by Abbas Tehrani on Unsplash
servers have long been a worthwhile target for attacks, such as the Li0n worm, which exploited a vulnerability in BIND. Moreover, DNS servers of all kinds are often used as amplifiers in distributed denial
16%
Harden services with systemd
03.02.2022
Home »  Archive  »  2022  »  Issue 67: syst...  » 
value drops to 9.0, but the rating remains unsafe. The next step is to add RestrictNamespaces=uts ipc pid user cgroup to the unit file, which prevents the process from accessing the listed namespaces
16%
Fedora 18 for Admins
11.06.2013
Home »  Articles  » 
 
largely without a sacrifice in performance, and access to devices lies at about 90 percent of normal speed. The admin sets up the sandbox with the virt-sandbox tool and, for example, specifies which
16%
Analyzing Kernel Crash Dumps
25.11.2012
Home »  Articles  » 
 
of the reserved area in megabytes and Y specifies the start address. If you omit the second parameter or set it to 0M , the system automatically selects an appropriate location. A subsequent restart enables
16%
Linux and Windows client management with opsi
13.02.2017
Home »  Archive  »  2017  »  Issue 37: Distr...  » 
Lead Image © alexutemov, 123RF.com
[4] program. A statically linked winexe version 0.90 is included in the agent. However, you need a winexe version 1.0 (or newer) for a version of Windows more recent than Windows 7. The deploy script

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