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86%
Data acquisition with shell tools
30.11.2025
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Dmitriy Syechin, 123RF
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 12
85%
High availability clustering on a budget with KVM
30.11.2025
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Yulia Saponova, 123RF.com
06 I_T nexus information: 07 LUN information: 08 LUN: 0 09 Type: controller 10 SCSI ID: deadbeaf1:0 11 SCSI SN: beaf10 12 Size: 0 13 ... 0
85%
Monitoring network computers with the Icinga Nagios fork
30.11.2025
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© Alterfalter, 123RF.com
-host-alive' command definition 09 define command{ 10 command_name check-host-alive 11 command_line $USER1$/check_ping -H $HOSTADDRESS$ -w 3000.0,80% -c 5000.0,100% -p 12 5 13
85%
An IT nomad's daily diary
30.11.2025
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© Kateryna Pruchkovska, 123RF.com
("http://spacewalk.tuxgeek.de/cobbler_api") 06 token = conn.login(user, password) 07 08 cblr_systems = '/root/cobbler.csv' 09 10 if os.access(cblr_systems, os.F_OK): 11 print "Reading system configuration file %s" % cblr_systems 12
85%
Creating an SFTP jail
30.11.2025
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Juan Manuel Ordonez, 123RF.com
]='-d' 09 debug1: Bind to port 2202 on ::. 10 Server listening on :: port 2202. 11 debug1: Bind to port 2202 on 0.0.0.0. 12 Server listening on 0.0.0.0 port 2202. Now the fun part begins
84%
Clustering with OpenAIS and Corosync
30.11.2025
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brunoilfo, 123RF.com
Cluster Generation: 748 08 Membership state: Cluster-Member 09 Nodes: 2 10 Expected votes: 1 11 Total votes: 2 12 Node votes: 1 13 Quorum: 1 14 Active subsystems: 8 15 Flags: 2node 16 Ports Bound: 0 17 Node
84%
Managing virtual machines
30.11.2025
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© Igor Klimov, 123RF.com
"creating" $vmname 09 10 virsh suspend rhstorage 11 virt-clone -o rhstorage -n $vmname -f /var/lib/libvirt/images/$vmname.qcow 12 virsh resume rhstorage 13 14 oldmac="52:54:00:B4:DF:EB" 15 newmac
83%
Container and hardware e-virtualization under one roof
30.11.2025
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Maxim Kazmin, 123R
.5-23 05 pve-kernel-2.6.24-11-pve: 2.6.24-23 06 qemu-server: 1.1-16 07 pve-firmware: 1.0-5 08 libpve-storage-perl: 1.0-13 09 vncterm: 0.9-2 10 vzctl: 3.0.23-1pve11 11 vzdump: 1.2-5 12 vzprocps: 2.0.11-1dso2
83%
Configuring the JBoss application server
30.11.2025
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HONGQI ZHANG, 123RF.com
environment, make sure the JAVA_HOME variable points to the Java root directory (Listing 1). Listing 1 Java Environment 01 # export JAVA_HOME=/usr/lib/jvm/jre-1.6.0-openjdk 02 # echo $JAVA
83%
Expand your sphere with a piece of Google
30.11.2025
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© artida, 123RF.com
.setContentType("text/plain"); 10 resp.getWriter().println("Hello World!"); 11 } 12 } Listing 2 Java web.xml for "Hello World!" 01 0" encoding="utf-8"?> 02

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