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18%
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
18%
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
18%
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
18%
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
18%
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
18%
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
18%
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
18%
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
18%
VPN clients for Android and iOS
05.12.2016
Home »  Archive  »  2016  »  Issue 36: Autom...  » 
Lead Image © fckncg, 123RF.com
established connections to a third-party server using the IPsec protocol. The test devices were an Apple iPad with the latest iOS 9 and a Samsung smartphone with Android 4.0.4, which at the time were the most
18%
Grid Engine: Running on All Four Cylinders
21.09.2012
Home »  HPC  »  Articles  » 
that Oracle has stated HPC is not a market in which they are interested. The Oracle Grid Engine Support page has plenty of information, and a 90-day free trial is purportedly available for those who register

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