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25%
CPU affinity in OpenMP and MPI applications
03.02.2022
Home »  Archive  »  2022  »  Issue 67: syst...  » 
Lead Image © podfoto, 123RF.com
serial, OpenMP, OpenACC, and MPI code. I carefully watch the load on each core with GkrellM [3], and I can see the scheduler move processes from one core to another. Even when I leave one to two cores free
25%
Server administration with Cockpit
29.09.2020
Home »  Archive  »  2020  »  Issue 59: Custo...  » 
Photo by Joshua J. Cotten on Unsplash
at the blog [3] reveals that new versions of Cockpit are released approximately every two weeks. In an article from 2015 [4], ADMIN looked into the topic of managing Linux servers with Cockpit; since then
25%
Trivy security scanner
04.04.2023
Home »  Archive  »  2023  »  Issue 74: The F...  » 
Lead Image © MPower, photocase.com
(NIST) National Vulnerability [2] or the Aqua Vulnerability [3] database. Figure 1: An image scan with Trivy generates a long list of vulnerabilities
25%
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
25%
Domain name resolution with DNS over HTTPS
06.10.2019
Home »  Archive  »  2019  »  Issue 53: Secur...  » 
Lead Image © Sergejus Bertasius, 123RF.com
.gtld-servers.net. redhat.com. 172800 IN NS ns2.redhat.com. redhat.com. 172800 IN NS ns3.redhat.com. redhat.com. 172800 IN NS ns1.redhat.com. redhat.com. 172800 IN NS ns4
25%
Exploring the filesystem that knows everything
14.03.2013
Home »  Archive  »  2013  »  Issue 13: IPv6...  » 
Lucy Baldwin, 123RF
details as well [3]. The files in the Linux /proc directory also have a pleasingly hackable penchant for being directly readable as plain text, as opposed to more binary-centric proc implementations
25%
Exploiting, detecting, and correcting IAM security misconfigurations
07.04.2022
Home »  Archive  »  2022  »  Issue 68: Autom...  » 
Photo by Kyle Head on Unsplash
security misconfigurations. I'll showcase how it would be possible for an attacker to use those IAM misconfigurations and create serious hassles. Big Deal? AWS IAM [3] lets you manage access to AWS
25%
Shell practice: Introduction to the sed stream editor
09.08.2015
Home »  Archive  »  2015  »  Issue 28: SSD RAID  » 
Lead Image © Dmitriy Sladkov, 123RF.com
.04.1988 26 March 1989 15 April 1990 31-March-1991 19 April 1992 11 April 1993 3 April 1994 16. April 1995 7 April 1996 30 March 1997 12 April 1998 Regular Expressions Regular expressions are used
25%
System Center 2012 SP1: What's new?
18.07.2013
Home »  Archive  »  2013  »  Issue 15: What’...  » 
snvv, 123RF
availability on request. In this way, all virtual servers can be centrally managed, whether they run locally or in the cloud. SCVMM SP1 or newer supports the new VHDX disks in Hyper-V 3.0 and Windows Server
25%
OpenStack workshop, part 2: OpenStack cloud installation
14.03.2013
Home »  Archive  »  2013  »  Issue 13: IPv6...  » 
© Anatoly Terebenin, 123RF.com
be in place, if you want the host to behave as it should: bridge-utils quantum-plugin-openvswitch-agent / quantum-l3-agent / quantum-dhcp-agent python-keystone / python

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