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Network analysis with Wireshark

30.11.2025

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

impressive thing about Tcpdump is its useful collection of filters. These capture filters are based on Libpcap, a C/C++ library that supports access to the network interface's link layer. Administrators can

42%

High-availability workshop: GFS with DRBD and Pacemaker

30.11.2025

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

cluster nodes, and the ext3 driver on node A wouldn't have the option of querying the state of the same DRBD resources on node B if it wanted to write to the medium. In the worst case, a write to the DRBD

42%

Finding cracks with Nmap, Portbunny, and Nessus

30.11.2025

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

. This prevents the sender from filling up the cache too quickly. Port Scanners Nmap [3], which recently went to version 5.0, is the Swiss army knife of port scanners. Portbunny [4] is a relatively new tool

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Professional backup solutions compared

30.11.2025

Home » Archive » 2010 » Issue 2: Backup... »

.6 v6.2 v5.0.3 v4.0 v7.0 Product Details Operating Systems (Server) Linux Asianux, CentOS, Debian, Fedora, openSUSE, RHEL, SLES 10, Ubuntu Fedora

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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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Avoiding common mistakes in high-performance computing

30.11.2025

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

, but you will be spending time deciphering instructions, hunting down tools, and undoing missteps before you can enjoy your new furniture. Indeed, should you not have the mechanical inclination to put bolt A ... 9

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