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30.11.2025

Home » Archive » 2011 » Issue 5: Pen Te... »

capture or display filters. The capture filter would look like this: port 22 Then start capturing, initiate an SSH login at the console, and in the Analyze menu, select Follow TCP Stream . The result

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High-availability workshop: GFS with DRBD and Pacemaker

30.11.2025

Home » Archive » 2012 » Issue 07: Xen v... »

17 18 19 20 21 22 23 This example also

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Finding cracks with Nmap, Portbunny, and Nessus

30.11.2025

Home » Archive » 2010 » Issue 0: Active... »

to popular ports, such as 80 (HTTP) or 22 (SSH), and pings. If Portbunny does not register a response to a port request, but the trigger packet reaches the target, it tags the port as filtered. Using Portbunny

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I/O benchmarks with Fio

30.11.2025

Home » Archive » 2011 » Issue 5: Pen Te... »

] 13 rw=randread 14 runtime=60 15 16 [sequentialread] 17 stonewall 18 rw=read 19 runtime=60 20 21 [randomwrite] 22 stonewall 23 rw=randwrite 24 runtime=60 25 26 [sequentialread] 27 stonewall 28 rw

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Using the Expect scripting environment

30.11.2025

Home » Archive » 2011 » Issue 5: Pen Te... »

} 19 20 -re "($|%|>) " { interact } 21 22 timeout { 23 send_tty "No response from $host\n" 24 exit 25 } 26 } The script begins as usual by saving its arguments into variables

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Storage system with OpenSolaris and Comstar

30.11.2025

Home » Archive » 2010 » Issue 0: Active... »

# stmfadm create-tg myfcserver 19 # stmfadm add-tg-member -g myfcserver wwn.10000000c93805a6 20 # stmfadm create-hg myfcclient 21 # stmfadm add-hg-member -g myfcclient wwn.50060b0000c26204 22 # svcadm enable

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Configuration management with Chef

30.11.2025

Home » Archive » 2010 » Issue 1: System... »

18 validation_client_name "validator" 19 validation_key "/etc/chef/validation.pem" 20 client_key "/etc/chef/client.pem" 21 web_ui_client_name "chef-webui" 22 web

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Avoiding common mistakes in high-performance computing

30.11.2025

Home » Archive » 2012 » Issue 09: Windo... »

16 into offset hole 22, your new furniture might never live up to your expectations. Additionally, integrating the furniture into an existing room could be a challenge. Forgetting that the new surround

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Julia: A new language for technical computing

30.11.2025

Home » Archive » 2012 » Issue 10: Traff... »

.33 164.69 0.75 rand_mat_stat 3.37 39.34 11.64 54.54 22.07 8.12 rand_mat_mul 1.00 1.18 0.70 1.65 8

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