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17%
vSphere 5 vs. XenServer 6
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Kozinia, 123RF.com
[2] by VMware started to move into the server racks in the summer of 2011, but while I was researching this article, Citrix suddenly burst onto the scene with the XenServer 6.0 release [3
17%
Shared Storage with NFS and SSHFS
12.09.2018
Home »  HPC  »  Articles  » 
. Moreover, you don't need to add or run a special client tool on the client nodes or a special server tool on the storage node; SSH just needs to be active on your system. Almost all firewalls allow port 22
17%
Hardening mail servers, clients, and connections
03.04.2024
Home »  Archive  »  2024  »  Issue 80: Threa...  » 
Photo by jesse ramirez on Unsplash
use Ubuntu 22.04, but you can apply all the advice to other distributions, too. ClamAV is used in conjunction with SpamAssassin as a tool for filtering mail. Where action relating to name servers
17%
HPC Data Analytics
08.08.2014
Home »  HPC  »  Articles  » 
. Another way to think of data analytics is the combination of two concepts: ``data analysis'' and ``analytics.'' Data analysis [3] is very similar to data analytics, in that it is the process of massaging
17%
Let the editor wars begin!
11.10.2016
Home »  Archive  »  2016  »  Issue 35: Persi...  » 
Lead Image © Kirill Makarov, 123RF.com
for another editor. ex Ex [1] was written by Bill Joy [2] in 1976 as something of a replacement for the original *nix editor named ed [3] (ed was developed in 1969). Bill Joy modified a development of ed
17%
Elephant Shed PostgreSQL appliance
02.06.2020
Home »  Archive  »  2020  »  Issue 57: Artif...  » 
Lead Image © victor zastolskiy, 123RF.com
a database server. Among other things, you can use it for fine-tuning, to monitor its vitals, and to design and execute a backup strategy. The appliance uses Prometheus [2] and Grafana [3] to collect
17%
Supercomputing Conference 2024
26.01.2025
Home »  Archive  »  2025  »  Issue 85: Monit...  » 
Lead Image © djem, 123RF.com
SC24 took place in Atlanta, GA, November 17-22. As I'm writing this, 17,959 attendees – that's 3,000+ more than last year – registered. More than 500 companies filled the exhibition floor, which
17%
Security without firewalls
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
© rukanoga, 123RF.com
and then explicitly allow certain users access. It's similar to the deny by default approach I touched on in another article [3]. To achieve this, the /etc/hosts.deny file would look like this: sshd: ALL To allow
17%
Graphite: Collect and Visualize Numeric Data
30.07.2014
Home »  HPC  »  Articles  » 
minutes (lines 22-24), which you can find in the web GUI under the system node. Dots in the name create folders in the hierarchy; to create a graph, you then just click on one of the values in the web app
17%
Dispatches from the world of IT
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
of approximately $3M per MW of IT. In addition, IT systems that can tolerate higher temperatures can reduce the risk of IT failures during facility cooling outages." Red Hat and SAP Red Hat announced

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