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43%
Virtualization via Zones
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Pei Ling Hoo, 123RF.com
Completed 37/37 5598/5598 32.52/32.52 17 18 PHASE ACTIONS 19 Install Phase 7329/7329 20 21 Note
43%
Monitoring server hardware with the Nagios IPMI plugin
30.11.2025
Home »  Archive  »  2011  »  Issue 4: Secure...  » 
© Vladimir Nenov, 123RF.com
to analog (threshold) sensors in a reliable way. FreeIPMI is now included by an growing number of Linux distributions, such as RHEL/Cent OS as of version 5.2, Ubuntu as of version 10.04, and Debian Squeeze [2
43%
Data acquisition with shell tools
30.11.2025
Home »  Archive  »  2010  »  Issue 2: Backup...  » 
Dmitriy Syechin, 123RF
|21|" | cut -d\| -f3` 48 b=`cat $newdat | grep "50|25|" | cut -d\| -f3` 49 50 a=$(echo $a | tr \, \.) 51 b=$(echo $b | tr \, \.) 52 53 54 psum=$(echo "$a+$b" | bc ) 55 echo -n "Invoice amount: $psum, continue
43%
Workshop: Container virtualization with LXC on Ubuntu 10.04
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
© Tormod Rossavik, 123RF.com
lxc.cgroup.devices.allow = c 1:9 rwm 25 lxc.cgroup.devices.allow = c 1:8 rwm 26 lxc.cgroup.devices.allow = c 136:* rwm 27 lxc.cgroup.devices.allow = c 5:2 rwm 28 # rtc 29 lxc.cgroup.devices.allow = c
43%
Expand your sphere with a piece of Google
30.11.2025
Home »  Archive  »  2011  »  Issue 4: Secure...  » 
© artida, 123RF.com
data in the datastore. A maximum 2,000 email messages dispatched per day. Applications unreachable at a fixed IP address. If you exceed any of these limits, Google stops further access
43%
Getting started with I/O profiling
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
© Photosani, Fotolia.com
InfiniBand for the compute node storage traffic or will GigE or 10GigE be sufficient? Should I use 15,000rpm drives or 7,200rpm drives? Do I need SSDs (solid state drives)? Which filesystem should I use
43%
A simple approach to the OCFS2 cluster filesystem
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
© Kheng Ho Toh, 123RF.com
to take into account when designing your storage. The number of subdirectories in a directory is restricted to 32,000. OCFS2 stores data in clusters of between 4 and 1,024Kb. Because the number of cluster
43%
Script utilities in depth: grep, awk, and sed
30.11.2025
Home »  Archive  »  2011  »  Issue 4: Secure...  » 
© 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}; $1
43%
Warding off the rise of VoIP spam
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Izaokas Sapiro, 123RF.com
of 480Kbps, which calls for a 512Kbps line. Assuming a line rental of EUR 30 (US$ 35-40), the basic rate for the marketer would be 0.004 cents per call. In other words, 5,000 VoIP calls costs the same
43%
Active Directory overview
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
© Maksym Yemelyanov, 123RF.com
of 5,000 members because the replication mechanism wasn't powerful enough for use in a large environment. The reason for the size restriction was that a Windows 2000 domain controller always replicated

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