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63%
Exploring Kubernetes with Minikube
11.09.2018
Home »  Archive  »  2018  »  Issue 47: Findi...  » 
to Virtualization.'' Alternatives to Virtualization According to one very nicely written page [3], KVM will still work without the hardware extensions, but it will be much slower. It is also possible
63%
Manage OpenVPN keys with Easy-RSA
06.10.2019
Home »  Archive  »  2019  »  Issue 53: Secur...  » 
Lead Image © Orlando Rosu, 123rf.com
the Debian-based, distributions install it along with openvpn – one exception being Ubuntu, which only offers easy-rsa starting with Cosmic Cuttlefish (Ubuntu version 18.10) [3]. The successor, Easy-RSA 3
63%
The state of open source groupware
09.08.2015
Home »  Archive  »  2015  »  Issue 28: SSD RAID  » 
Lead Image © Andrey Bayda, 123RF.com
developments in the open source groupware alternatives PostPath, Kerio, Kolab, Open-Xchange, Scalix, Tine 2.0, Zarafa, and Zimbra. PostPath Somewhat unlucky in its hunt for customers, PostPath [1] used to have
63%
The SDFS deduplicating filesystem
03.12.2015
Home »  Archive  »  2015  »  Issue 30: OpenD...  » 
Lead Image © maridav, 123RF.com
and directories. SDFS is licensed under the GNU GPLv2 and can thus be used for free in the enterprise. You can view the source code on GitHub [2]. SDFS exclusively supports systems with 64-bit Linux on an x86
63%
Automate CentOS and RHEL installation with PXE
02.02.2021
Home »  Archive  »  2021  »  Issue 61: Secur...  » 
Lead Image © Michael Kempf, Fotolia.com
install the shim-x64 package. The pxelinux/ folder also needs to contain the grubx64.efi file, which you will find online [3]. While you are on the CentOS mirror, you can load the two files found
63%
Network monitoring with Icinga and Raspberry Pi
17.02.2015
Home »  Archive  »  2015  »  Issue 25: Safe...  » 
Lead Image © AndreaDanti, 123RF.com
web interface, a REST API, and support for a wider array of databases. Because Icinga was forked from Nagios code, it maintains compatibility with Nagios plugins [3]. Some of Icinga's key features are
63%
HPC Software Road Gets a Bit Smoother
10.09.2013
Home »  HPC  »  Articles  » 
on the application. Assuming a pure OpenMP solution will always work better than an MPI application on a single node would be a mistake. Consider Table 1, which shows the results of NAS Parallel Benchmarks (NPB3
63%
Verifying packages with Debian's ReproducibleBuilds
10.06.2015
Home »  Archive  »  2015  »  Issue 27: Fault...  » 
Lead Image © jaroonrat vitoosuwan , 123RF.com
exploits like the OpenSSH bug CVE-2002-0083 [2] show that sometimes changing just one bit is sufficient to install a backdoor [3]. For sophisticated attacks, attackers could dump a kernel rootkit
63%
Continuous upgrades for Windows 10
16.08.2018
Home »  Archive  »  2018  »  Issue 46: CMS S...  » 
Lead Image © golffoto, photocase.com
Application owner Two months after the release Ring 3 10 percent of employees Four months after the release Ring 4 20 percent of employees Five months after
63%
Improved Performance with Parallel I/O
24.09.2015
Home »  HPC  »  Articles  » 
that is 80% parallelizable (20% is serial, primarily because of I/O). For one process, the wall clock time is assumed to be 1,000 seconds, which means that 200 seconds is the serial portion of the application

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