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49%
Troubleshooting SELinux
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Sapsiwai, Fotolia
has always been a little sketchy and is frequently out of date. Also, in many environments, enabling SELinux can lead to strange failures with mysterious error messages. In this article, I will shed
49%
Avoiding common mistakes in high-performance computing
30.11.2025
Home »  Archive  »  2012  »  Issue 09: Windo...  » 
© Maxim Kazmin, 123RF.com
on running applications that perform the same type of numerical algorithm used in the HPL benchmark (linear algebra), then using HPL as a final arbiter of price to performance could lead to disappointment
48%
Effective honeypots with sensors on production systems
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© monophoto, 123RF.com
is considered to be a separate attack. Thus, a single port scan already leads to a high number of attacks. Port scans from three different IP addresses within the university network were registered, each of which
48%
Network backup with Burp, Obnam, and Backshift
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Sergey Peterman, 123RF.com
that Backshift is not just another tar front end, because the deduplication algorithm leads to much greater space savings than mere compression. The relatively fresh Backshift version 1.03 [6] is available
48%
Virtualization with KVM
30.11.2025
Home »  Archive  »  2010  »  Issue 2: Backup...  » 
is qemu-kvm-extras. openSUSE 11.3 even bundles the complete, official Qemu system into its qemu package, which leads to curious situation where you can launch Qemu by typing either qemu-kvm or qemu
48%
Strategies for routing voice calls around a firewall
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
gnohz, 123RF.com
. This solution works fairly reliably, although problems can occur with multiple-level NAT. The WLAN router translates the addresses in communications with the ADSL modem, which also uses NAT. This often leads
48%
Service management by the book
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Michael Flippo, Fotolia.com
information that could lead to changes and improvements to your overall service strategy (thus completing the cycle). All That Glitters Is Not Gold Although ITSM is a lot more than what I have discussed here
48%
Demystified: The facts about green IT
30.11.2025
Home »  Archive  »  2011  »  Issue 3: Are yo...  » 
Iakov Kalinin, 123RF
words, both variants – purchasing and upgrading – should alternate to achieve an ecological optimum. Other considerations lead to the conclusion that upgrading after three years is not the most ecological
48%
Business continuity for small to medium-sized enterprises
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
© Andrea, Fotolia.com
and the applications thus are the blood in the veins of the company's IT infrastructure. A server failure will inevitably lead to loss of productivity. Depending on the industry, the consequences of a server failure can
48%
Enterprise software management with Red Hat Satellite Server
30.11.2025
Home »  Archive  »  2012  »  Issue 09: Windo...  » 
© robbiverte, 123RF.com
updates, the time involved in the process and the possibility of a critical patch slipping through the cracks lead to the need for a tool that tabulates, manages, schedules, and implements patches. Red Hat

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