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11%
Get the best out of your bandwidth with tc
30.11.2025
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© Russell Shively, 123RF.com
understand how shaping or throttling works with tc: When shaping a 10mbit/s connection to 1mbit/s, the link will be idle 90% of the time. If it isn't, it needs to be throttled so that it IS idle 90
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Boost performance of your Python programs
30.11.2025
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Eric Isselée, 123RF
oc.close() 20 21 if '__main__' == __name__: 22 23 uicores = cpu_count() 24 olck = Lock() 25 26 oque = Queue() 27 op, oc = Pipe() 28 29 for ui in xrange(1, 2*uicores): 30
11%
Targeted defense against brute force attacks
30.11.2025
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Andrii IURLOV, 123RF.com
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
11%
Monitoring network computers with the Icinga Nagios fork
30.11.2025
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© Alterfalter, 123RF.com
notification_interval 60 16 notification_options d 17 } 18 19 # Fileserver 20 define host{ 21 host_name fileserver 22 alias Fileserver 23
11%
Fast system management from Puppet Labs
30.11.2025
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© Artmann Witte, fotolia.com
20 21 22 23 24
11%
Virtualization via Zones
30.11.2025
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Pei Ling Hoo, 123RF.com
: Man pages can be obtained by installing SUNWman 22 Postinstall: Copying SMF seed repository ... done. 23 Postinstall: Applying workarounds. 24 Done: Installation completed in 411.387 seconds
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An IT nomad's diary
30.11.2025
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© Jasmin Merdan, 123RF.com
-tuxgeek.rhcloud.com,174.129.129.190' (RSA) to the list of known hosts. 20 Enter passphrase for key '/home/tscherf/.ssh/libra_id_rsa': 21 Confirming application spaceuploader is available 22 Attempt # 1 23 24 Success
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Shell scripts: Equal rights for Unix derivatives and Linux
30.11.2025
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Mike Flippo, 123RF
OS*) 15 PING="ping" 16 PING2="" 17 ;; 18 esac 19 ... 20 21 for i in server1 server2 server3 workstation1 workstation2 22 do 23 $PING $i $PING2 > /dev/null 24 if [ "$?" != "0
11%
Workshop: Container virtualization with LXC on Ubuntu 10.04
30.11.2025
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© Tormod Rossavik, 123RF.com
:5 rwm 18 # consoles 19 lxc.cgroup.devices.allow = c 5:1 rwm 20 lxc.cgroup.devices.allow = c 5:0 rwm 21 lxc.cgroup.devices.allow = c 4:0 rwm 22 lxc.cgroup.devices.allow = c 4:1 rwm 23 # /dev/{,u}random 24
11%
Dispatches from the world of IT
30.11.2025
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the recently launched TouchPad tablet line. On September 22, 2011, the HP board of directors announced it was retiring Leo Apotheker. Plenty of controversy and commentary followed both announcements

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