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24%
Beyond monitoring: Mathematical load simulation in Perl
30.11.2025
Home
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Archive
»
2011
»
Issue 6: Perfor...
»
Model"; 11 $work = "ebiz-tx";
12
$node1 = "WebServer"; 13 $node2 = "AppServer"; 14 $node3 = "DBMServer"; 15 $think = 0.0 * 1e-3; # as per test system 16 $dtime =
2.2
* 1e-3; # dummy service time 17 18
24%
A simple approach to the OCFS2 cluster filesystem
30.11.2025
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Archive
»
2010
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Issue 1: System...
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Type of mail Filesystem label=data Block size=2048 (bits=11) Cluster size=4096 (bits=
12
) Volume size=1011675136 (246991 clusters) (493982 blocks) 16 cluster groups (tail covers 8911 clusters, rest cover
24%
Monitoring your cluster with a home-grown OCF agent
30.11.2025
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Archive
»
2012
»
Issue 07: Xen v...
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an Asterisk PBX as an HA resource 07 # 08 # Authors: Martin Gerhard Loschwitz 09 # Florian Haas 10 # 11 # Support: linux-ha@lists.linux-ha.org
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# License: GNU General Public
24%
Data acquisition with shell tools
30.11.2025
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Archive
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2010
»
Issue 2: Backup...
»
clear 03 while true 04 do 05 echo "New record" 06 maxrecord=`ls -1 *.dat | sort | tail -1 | cut -d. -f 1` 07 newrecord=$(echo $maxrecord + 1 | bc ) 08 width=`echo $newrecord | wc -c` 09 10 ... 11
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24%
Server virtualization with VirtualBox
30.11.2025
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Archive
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2012
»
Issue 10: Traff...
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. Listing 1 Installing the Extension Pack $ vboxmanage -v 4.1.
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r77245 $ wget http://download.virtualbox.org/virtualbox/4.1.
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/Oracle_VM_Virtualbox_Extension_Pack-4.1.
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-77245.vbox-extpack $ sudo
24%
Creating an SFTP jail
30.11.2025
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Archive
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2011
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Issue 3: Are yo...
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(s) you wish to process (or 'all' to process all packages). (default: all) [?,??,q]: all
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13 Processing package instance
from 14
24%
Monitoring daemons with shell tools
30.11.2025
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Archive
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2010
»
Issue 1: System...
»
#! /bin/sh 02 03 while true 04 do 05 06 zeit=$(date +%d.%m.%y\ %H:%M\ ) 07 08 psql -U monitor -d monitor -c "select * from watch;" 09 10 if [ $? -eq 2 ]; 11
12
then 13 14 echo "$time: Database
24%
Managing virtual machines
30.11.2025
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Archive
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2012
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Issue 09: Windo...
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"creating" $vmname 09 10 virsh suspend rhstorage 11 virt-clone -o rhstorage -n $vmname -f /var/lib/libvirt/images/$vmname.qcow
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virsh resume rhstorage 13 14 oldmac="52:54:00:B4:DF:EB" 15 newmac
23%
Boost performance of your Python programs
30.11.2025
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Archive
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2010
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Issue 2: Backup...
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if '__main__' == __name__: 09 10 p1 = Process(target = test, args = ('Rich',)) 11 p2 = Process(target = test, args = ('Nus',))
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p3 = Process(target = test, args = ('Geeks',)) 13 14 p2.start
23%
Fast system management from Puppet Labs
30.11.2025
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Archive
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2011
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Issue 5: Pen Te...
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="http://activemq.apache.org/schema/core" brokerName="localhost" useJmx="true"> 10
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