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26%
Configuring the JBoss application server
30.11.2025
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HONGQI ZHANG, 123RF.com
procedure took (Listing 2). Listing 2 Startup Status 01 19:58:19,965 INFO [ServerImpl] JBoss (Microcontainer) [5.1.0.GA (build:SVNTag=JBoss_5_1_0_GA date=200905221634)] Started in 54s:991ms
26%
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
26%
High-availability workshop: GFS with DRBD and Pacemaker
30.11.2025
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© Maxim Borovkov, 123RF.com
Resource 01 primitive p_filesystem ocf:heartbeat:Filesystem params 02 device="/dev/drbd/by-res/disk0/0" directory="/opt" fstype="gfs2" 03 op monitor interval="120s" meta target-role="Started" 04 clone cl
26%
Script utilities in depth: grep, awk, and sed
30.11.2025
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© jirkaejc, 123RF.com
that it locates: oops::000:100::/:/bin/sh This password file entry allows someone to log in as the root-equivalent user oops without a password: grep '.*:.*:00*:' /etc/passwd | awk -F: 'BEGIN {n=0}; $1
26%
Igel thin clients
30.11.2025
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Dana Bartekoske, 123RF
. To automate this process on a Windows DHCP server, you can use the netsh command. To create a new reservation, just issue the following: netsh dhcp server scope 10.10.0.0 add reservedip 10.10.47.11 00E0C0E0B0B
26%
Monitoring virtualization environments with Nagios and Icinga
30.11.2025
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Sergej Khackimullin, 123RF
CPU PROCESS/NLWP # 173 daemon 17M 11M sleep 59 0 3:18:42 0.2% rcapd/1 # 17676 apl 6916K 3468K cpu4 59 0 0:00:00 0.1% prstat/1 # ... # ZONEID NPROC SWAP RSS MEMORY TIME
26%
Connecting dissimilar IPsec implementations
30.11.2025
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© Yuri Arcurs, 123RF.com
dh_group modp1024; 09 } 10 generate_policy off; 11 } 12 13 sainfo address 192.168.2.0/24 any address 172.16.0.0/16 any { 14 pfs_group modp1024; 15 encryption_algorithm aes256; 16
25%
Monitoring your cluster with a home-grown OCF agent
30.11.2025
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© Aleksey Mnogosmyslov, 123RF.com
_NOT_RUNNING 08 fi 09 10 pid=`cat $ASTRUNDIR/asterisk.pid` 11 ocf_run kill -s 0 $pid 12 rc=$? 13 14 if [ $rc -eq 0 ]; then 15 if ocf_is_true "$OCF_RESKEY_realtime"; then 16
25%
Creating an SFTP jail
30.11.2025
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Juan Manuel Ordonez, 123RF.com
_config 03 bash#> vi sshd_config 04 AllowTcpForwarding no 05 ClientAliveCountMax 3 06 ClientAliveInterval 0 07 Compression delayed 08 LoginGraceTime 60s 09 LogLevel DEBUG3 10 MaxAuthTries 2
25%
Galera Cluster for MySQL
30.11.2025
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© Noel Powell, fotolia.com
to install the Pen load balancer, and Listing 12 shows a query to Pen. Listing 11 Installing and Starting Pen wget http://siag.nu/pub/pen/pen-0.18.0.tar.gz tar xf /download/pen-0.18.0.tar

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