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56%
Welcome
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
 
ubiquitous that even my laptop can act as a VMware or Xen host. I feel vindicated for gushing over a technology that, in 1999, some industry pundits labeled "cute" or "trendy." I felt the same way when my
56%
Overview of cloud platforms and appliances
30.11.2025
Home »  Archive  »  2010  »  Issue 2: Backup...  » 
Athiphan Chunmano, 123RF
More or less every virtualization provider defines the term cloud to match their own offerings. These offerings are then promoted as Cloud Services or Cloud Servers. Public Cloud, Private Cloud
55%
Single sign-on with SSSD, LDAP, and Kerberos
30.11.2025
Home »  Archive  »  2010  »  Issue 2: Backup...  » 
Anja Kaiser; Fotolia
but on a central server. Systems that can access the central server can thus query the server when a user tries to log in. Because NIS isn't exactly renowned for providing a secure environment, I'll be using
54%
An IT nomad's diary
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© Jasmin Merdan, 123RF.com
Friday, 5pm: I just switched off my laptop a quarter of an hour ago and I am ready to go running, when my phone rings. Two friends from California are calling to proudly tell me about a new Perl web
54%
Improve the physical security of your business
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© ginasanders, 123RF.com
the intruder's visits. Additionally, security considerations should not be restricted to the immediate workplace. Important documents and laptops may not be on the company's premises but somewhere in a hotel
54%
Podman-HPC
27.10.2026
Home »  Articles  » 
 
really focuses on supporting their users and providing top-notch tools, as well as making sure the systems are rock solid stable, including a very good storage system. NERSC created podman-hpc , which
53%
I/O benchmarks with Fio
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© Kheng Ho Toh, 123RF.com
teaches performance analysis and tuning for various training service providers. Thanks to Jens Axboe for answering many questions and to Teamix for providing the test laptop.
53%
Mobile PC Monitor: A sys admin's best friend
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
© Buchachon Petthanya, 123RF.com
, a tablet computer, a laptop (notebook, ultrabook, netbook), the PC Monitor application, or a web page. As long as you have access to any type of computer or smartphone, you can stay in touch with what
53%
Top three HPC roadblocks
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
© Alexey Bogatyrev, 123RF.com
their responsibility ends and the customer's begins. It can be the cable modem or a phone box, but one side is the user's responsibility and the other is that of the service provider. In general, installers try
52%
New Approaches to DNS
02.06.2026
Home »  Archive  »  2026  »  Issue 93 Disast...  » 
Lead Image ©bowie15, 123RF.com
), and the famous BIND server provide some hope for DoT's future. Under the hood of the protocol, a Transmission Control Protocol (TCP) connection is established to port 853. Client authentication can be set

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