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  • [x] Creation time: Last three months
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  • Article (Print) (88)
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14%
Introduction to OpenMP programming
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
© Frank Rohde, 123RF.com
'll dive into an example to show how OpenMP works on some classic code. Laplace Solver To illustrate how OpenMP can be used to parallelize applications, I'm going to use a simple serial Laplace solver [2
14%
Moving HPC to the cloud
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© Zarko Cvijovic, 123RF.com
. Univa notes that launching an external cloud on Amazon EC2 is incredibly easy; you can just go to the Amazon Market Place [12], choose HPC from the list, and then launch your cluster. A similar feature
14%
High-availability workshop: GFS with DRBD and Pacemaker
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Maxim Borovkov, 123RF.com
into Linux when Linus Torvalds added it to kernel version 2.6.19. GFS2 was thus a later entry to the kernel than the comparable OCFS2, which made it into kernel 2.6.16. In the kernel, GFS relies ... Cl uster filesystems such as GFS2 and OCFS2 allow many clients simultaneous access to a storage device. Along with DRBD and Pacemaker, this offers a low-budget option for creating a redundant service
14%
Connecting dissimilar IPsec implementations
30.11.2025
Home »  Archive  »  2011  »  Issue 4: Secure...  » 
© Yuri Arcurs, 123RF.com
be computed from the IKE SA keys when one of the IKE keys has been compromised. Once the IKE SA is agreed upon, the keys of hashes for the IPsec connection are negotiated in Phase 2. Again, a (far shorter
14%
Monitor your nodes with collectl
30.11.2025
Home »  Archive  »  2012  »  Issue 09: Windo...  » 
© nobeastsofierce, 123RF.com
m Memory n Networks s Sockets t TCP x Interconnect y Slabs Table 2 lists the aspects that can be measured
14%
Troubleshooting SELinux
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Sapsiwai, Fotolia
[FAILED] 05 # ls -ld /docroot 06 drwxr-xr-x 2 root root 1024 May 16 11:34 /docroot The error message seems to be saying that the new DocumentRoot isn't a directory or doesn't exist. But you can see
14%
Network analysis with Wireshark
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© Reinhard Eisele
.6 of Wireshark (which prompted me to write this article) was released in July 2011 and offers better support for large files of more than 2GB. It can also import text dumps in a similar style to text2pcap
14%
Active Directory overview
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
© Maksym Yemelyanov, 123RF.com
) can be grouped in a domain. Centralized In contrast to workgroups in Windows 9x, administrators define users and groups centrally on the domain controller [2]. Each change applies to all computers ... We take a look at Active Directory basics and introduce some new features in Active Directory 2008 R2.
14%
Setting up Exchange Server 2010 with SP1
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© Francois Lariviere, 123RF.com
, preferably Windows Server 2008 R2. Additionally, you need an Active Directory on your network. Ideally, you will want to install Service Pack 1 for Windows Server 2008 R2 before you launch into the Exchange
14%
vSphere 5 vs. XenServer 6
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Kozinia, 123RF.com
]. Figure 1: Market share (%) of primary hypervisors in the US and UK 2011Q2. (Source: V-index [1]) XenServer 6 Vendor: Citrix [3]. Type: x86 hypervisor for virtual machines with almost any

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