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10%
Moving HPC to the cloud
31.10.2025
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»
Archive
»
2012
»
Issue 11: Cloud...
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of options, including dual four-core Xeon, dual six-core Xeon, or quad
12
-core AMD processors ranging in speed from
2.2
to 2.9GHz with 24 to 128GB of RAM per server and up to 1TB of scratch local storage per
10%
The fail2ban intrusion prevention framework
30.11.2025
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Archive
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2012
»
Issue 10: Traff...
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in the directory structure is clear once you've installed it. Script Kiddies and Port
22
As I mentioned, the most popular usage of fail2ban is stopping probes that try every username ever conceived by mankind
10%
Dispatches from the world of IT
31.10.2025
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Archive
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2012
»
Issue 11: Cloud...
»
12
.10 as a storage option for our OpenStack reference architecture … ." The Ceph open source distributed storage system combines object storage, block storage, and a Posix-compatible filesystem
10%
Enterprise software management with Red Hat Satellite Server
30.11.2025
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2012
»
Issue 09: Windo...
»
; will run on 2GB but will be very slow with Proxy Servers attached 30GB of disk space per (Software) channel; separate partition /var/satellite/
12
GB of disk space for embedded database; separate
10%
Maatkit tools for database administrators
30.11.2025
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Archive
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2010
»
Issue 2: Backup...
»
SKIPPED DATABASE.TABLE 04 db 11.43 0 0 datenkrake 05 db 1.34 0 0 limesurvey 06 db 2.75 0 0 sprzblog 07 db 2.67 0 0 mysql
08
db 3.45 0
10%
Targeted defense against brute force attacks
30.11.2025
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Archive
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2011
»
Issue 3: Are yo...
»
specific ports with sshguard, you can use the --destination-ports parameter to find them. For example, sudo iptables -A INPUT -m multiport -p tcp --destination-ports 21,
22
-j sshguard would block only
10%
Getting started with I/O profiling
30.11.2025
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2012
»
Issue 08: FreeNAS
»
to analyze I/O patterns is that you are getting the strace output from a single application. Because I'm interested in HPC storage here, many of the applications will be MPI [
12
] applications, for which you
10%
Galera Cluster for MySQL
30.11.2025
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2012
»
Issue 10: Traff...
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MySQL-shared-compat-5.5.
22
-2.el6.x86_64.rpm rpm -i MySQL-client-5.5.
22
-1.el6.x86_64.rpm With CentOS 6, the following additional package is necessary: yum install openssl098e.x86_64 The easiest way
10%
vSphere 5 vs. XenServer 6
30.11.2025
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2012
»
Issue 07: Xen v...
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-shot challenger in this test, after some internal discussion, Red Hat adopted an almost Apple-like stance and refused to open up the current beta test to the press. Whereas VMware customers could run six or
12
10%
Workshop: Getting web and mail servers ready for IPv6
30.11.2025
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2011
»
Issue 5: Pen Te...
»
Name domain1.de 03 ServerAlias www.domain1.de 04 [...] 05 06
07 ServerName domain1.de
08
ServerAlias www.domain1.de 09 [...] 10
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