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100%
Using Expect scripts to automate tasks
31.10.2025
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© Kheng Ho Toh, 123RF.com
42 spawn $env(SHELL) 43 match_max 100000 44 expect -exact "]0;khess@trapper: ~khess@trapper:~\$ " 45 send -- "ssh aspen\r" 46 expect -exact "ssh aspen\r 47 khess@aspen's password: " 48 send
98%
Checking password complexity with John the Ripper
30.11.2025
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c/s virtual 12 13 Benchmarking: OpenBSD Blowfish (x32) [32/64 X2]... DONE 14 Raw: 723 c/s real, 723 c/s virtual 15 16 Benchmarking: Kerberos AFS DES [48/64 4K]... DONE 17 Short: 378501 c/s real
95%
Monitoring virtualization environments with Nagios and Icinga
30.11.2025
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Sergej Khackimullin, 123RF
CPU ZONE $ # 0 48 470M 482M 1.5% 4:05:57 0.0% global $ # 3 85 2295M 2369M 7.2% 0:36:36 0.0% refapp1
94%
Monitor your nodes with collectl
30.11.2025
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© nobeastsofierce, 123RF.com
YZCD 03 # DaemonOpts: -f /var/log/collectl -r00:00,7 -m -F60 -s+YZCD --iosize 04 ################################################################################ 05 # Collectl: V3.6.1-4 HiRes: 1 Options
93%
An IT nomad's daily diary
30.11.2025
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© Kateryna Pruchkovska, 123RF.com
magazine [3]. In other words, the many Cobbler system records are really the biggest problem. Just to jog your memory: Using system records, Cobbler can create an individual PXE configuration file for each
92%
Creating and evaluating kernel crash dumps
31.10.2025
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© Giuseppe Ramos, 123RF.com
kernel sles:~ # grep crash /proc/cmdline root=/dev/disk/by-uuid/10a83ffe-5a9f-48a2-b8cb-551c2cc6b42d resume=/dev/sda3 splash=silent text showopts crashkernel=128 sles:~ # /etc/init.d/boot.kdump status
91%
Enterprise software management with Red Hat Satellite Server
30.11.2025
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© robbiverte, 123RF.com
1 4,423.19 8,100.00 8,012.09 Proxy server subscription 2 4,500.00 3,850.00 4,006.04 Management/Provisioning subscription 2
88%
Beyond monitoring: Mathematical load simulation in Perl
30.11.2025
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© kudryashka, 123RF.com
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
87%
A Btrfs field test and workshop
31.10.2025
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© Adrian Hillman, 123RF.com
. Enterprise-Level Features Btrfs is a copy-on-write (COW) filesystem. Whereas a filesystem like ext3 logs block changes in a journal, Btrfs always writes changes to a block at a new location on the disk
87%
High availability clustering on a budget with KVM
30.11.2025
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Yulia Saponova, 123RF.com
" domain="kvm-node1"/> 47 48 49 50 51 --> 52