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17%
Understanding Layer 2 switch port security
22.12.2017
Home »  Archive  »  2017  »  Issue 42: Secur...  » 
Lead Image © Taffi, Fotolia.com
by the fake record so that all traffic with destination address ABCD.EF00.0001 will go to the attacker's port. The Ettercap [3] utility, also available on Kali Linux, is often used to launch a MAC
17%
Bringing old hardware back into the game
29.09.2020
Home »  Archive  »  2020  »  Issue 59: Custo...  » 
Lead Image © Lucy Baldwin, 123RF.com
://en.wikipedia.org/wiki/ATX ThinkPad T420: https://support.lenovo.com/us/en/solutions/pd015734/ 16GB (2X8GB) RAM kit (204PIN SODIMM DDR3 SDRAM PC10600): https://www.amazon.com/gp/product/B00B2OT9HI/ 250GB Samsung 850 EVO v
16%
Monitoring HPC Systems
11.06.2014
Home »  Archive  »  2014  »  Issue 21: Manag...  » 
Lead Image © Alexander Rivosh, 123RF.com
so many options and opinions is not a bad thing, but you need to sort through the ideas to find something that works for you and your situation. In two further blog posts [3] [4], I wrote some simple
16%
I/O Profiling at the Block Level
27.08.2014
Home »  HPC  »  Articles  » 
files in ext3/ext4 filesystems Zipf theta - Estimate of Zipfian distribution theta Ioprof is written in Perl and is fairly easy to run, but it has to be run as root (or with root privileges
16%
Assess USB performance while exploring storage caching
13.12.2018
Home »  Archive  »  2018  »  Issue 48: Secur...  » 
Lead Image © Lucy Baldwin, 123RF.com
disk reads: 1306 MB in 3.00 seconds = 434.77 MB/sec federico@cybertron:~$ sudo hdparm -W /dev/sdb /dev/sdb: write-caching = 1 (on) federico@cybertron:~$ sudo hdparm -W 0 /dev/sdb /dev/sdb: write
16%
System temperature as a dimension  of  performance
28.11.2022
Home »  Archive  »  2022  »  Issue 72: OpenS...  » 
Lead Image © Lucy Baldwin, 123RF.com
of alternative sources. Listing 1 sensors Output federico@ferenginar:~$ sensors k10temp-pci-00c3 Adapter: PCI adapter temp1: +42.5¡C (high = +70.0¡C) (crit = +100.0¡C
16%
Warewulf 4 – GPUs
20.02.2023
Home »  HPC  »  Articles  » 
=/etc/slurm/slurm.epilog.clean NodeName=n0001 Sockets=1 CoresPerSocket=4 ThreadsPerCore=2 State=UNKNOWN PartitionName=normal Nodes=ALL Default=YES MaxTime=24:00:00 State=UP Oversubscribe=EXCLUSIVE Slurmctld
16%
LXC 1.0
03.12.2015
Home »  Archive  »  2015  »  Issue 30: OpenD...  » 
Lead Image © designpics, 123RF.com
.0/24 !10.0.3.0/24 root@ubuntu:~# ps -eaf | grep dnsmas lxc-dns+ 1047 1 0 18:24 ? 00:00:00 dnsmasq -u lxc-dnsmasq --strict-order --bind-interfaces --pid-file=/run/lxc/dnsmasq.pid --conf
16%
Monitoring events with the Audit daemon
17.02.2015
Home »  Archive  »  2015  »  Issue 25: Safe...  » 
Lead Image © alphaspirit , 123RF.com
. Listing 1 auditd.conf log_file = /var/log/audit/audit.log log_format = RAW log_group = root priority_boost = 3 flush = INCREMENTAL freq = 20 num_logs = 5 disp_qos = lossy dispatcher = /sbin
16%
Warewulf Cluster Manager – Administration and Monitoring
21.08.2012
Home »  HPC  »  Articles  » 
-------------------- ----------- -------- ---------------- ------ ----- ------ ------ ----- - ----- 10.test1 laytonjb batch mpi_pi_fortran90 -- 1 3 -- 00:10 Q -- The qstat command gets the status of the queues in Torque, and the -a option tells it to check all

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