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30.11.2025

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

a DNS server, it uses three standard addresses as its name servers: fec0::1, fec0::2 and fec0::3. The prefix fec0 was originally the counterpart to the RFC 1918 addresses but has been deprecated. If you

16%

Port Knocking

07.10.2014

Home » Archive » 2014 » Issue 23: 10 Ti... »

to its GPRS and 3G customers, this approach opened up our servers to many more IP addresses than in our old system, with its 10 or 20 authorized IP addresses at the company offices and at the homes

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The practical benefits of network namespaces

15.08.2016

Home » Archive » 2016 » Issue 34: Softw... »

-> ../../devices/pci0000:00/0000:00:03.0/net/eth0 |---lo -> ../../devices/virtual/net/lo The device is no longer listed in the default namespace. Listing 3 Configuring Devices $ ip link set eth1

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A simple approach to the OCFS2 cluster filesystem

30.11.2025

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

_dlm] root 3467 7 0 20:07 ? 00:00:00 [o2net] root 3965 7 0 20:24 ? 00:00:00 [ocfs2_wq] root 7921 7 0 22:40 ? 00:00:00 [o2hb-BD5A574EC8] root 7935 7

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Gathering Data on Environment Modules

10.09.2012

Home » HPC » Articles »

.own lib/atlas/3.8.4 mpi/mpich2/1.5b1-open64-5.0 module-cvs mpi/openmpi/1.6-gcc-4.4.6 [laytonjb@test1 ~]$ modules list No Modulefiles Currently Loaded. [laytonjb@test1

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Hunt down vulnerabilities with the Metasploit pen-testing tool

28.11.2021

Home » Archive » 2021 » Issue 66: Inci... »

:/usr/sbin:/bin/sh bin:x:2:2:bin:/bin:/bin/sh sys:x:3:3:sys:/dev:/bin/sh (...) reboot; Connection closed by foreign host. Metasploitable runs many more insecure services that an Nmap scan brings to light (Listing 3

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Tuning I/O Patterns in C

31.07.2013

Home » HPC » Articles »

; 22 my_record.z = counter + 2; 23 my_record.value = (float) counter * 10.0; 24 /* write out my_record */ 25 } 26 return 0; 27 } One-by-One Initially, I’m just going

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HDF5 and Parallel I/O

17.05.2017

Home » HPC » Articles »

, 5 ) / ( 8, 5 ) } DATA { (0,0): 0, 1, 2, 3, 4, (1,0): 5, 6, 7, 8, 9, (2,0): 10, 11, 12, 13, 14, (3,0): 15, 16, 17, 18, 19, (4,0): 20, 21, 22, 23, 24, (5,0): 25, 26, 27, 28, 29, (6,0

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Shared Storage with NFS and SSHFS

12.09.2018

Home » HPC » Articles »

, the first step is to specify the filesystems (directories) that are to be exported to the compute nodes. The /etc/exports file lists the filesystems and the permissions, such as: /usr/local 192.168.0.1(ro

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Shared Storage with NFS and SSHFS

04.10.2018

Home » Archive » 2018 » Issue 47: Findi... »

, the first step is to specify the filesystems (directories) that are to be exported to the compute nodes. The /etc/exports file lists the filesystems and the permissions, such as: /usr/local 192.168.0.1(ro

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