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18%
Building a HPC cluster with Warewulf 4
04.04.2023
Home »  Archive  »  2023  »  Issue 74: The F...  » 
Photo by Andrew Ly on Unsplash
: ohpc-slurm-client x86_64 2.6-7.1.ohpc.2.6 OpenHPC-updates 6.9 k Installing dependencies: cairo x86_64 1.15.12-6.el8 appstream
18%
Favorite benchmarking tools
30.01.2020
Home »  Archive  »  2020  »  Issue 55: AWS L...  » 
Lead Image © Lucy Baldwin, 123RF.com
sports a few additional capabilities, the most noteworthy being its ability to measure page faults and swapping activity by the tested binary: $ /usr/bin/time gcc test.c -o test 0.03user 0.01system 0:00
18%
Understanding Layer 2 switch port security
22.12.2017
Home »  Archive  »  2017  »  Issue 42: Secur...  » 
Lead Image © Taffi, Fotolia.com
for an intrusion attempt. Figure 1: PC1 sends out a data frame with the destination address ABCD.EF00.0004. The switch receives it at port 1 and then searches
18%
How to configure and use jailed processes in FreeBSD
14.03.2013
Home »  Archive  »  2013  »  Issue 13: IPv6...  » 
© Corina Rosu, 123RF.com
/sbin/named ... 774 ?? SsJ 0:00,12 /usr/sbin/sshd ... 781 ?? IsJ 0:00,87 /usr/sbin/cron -s ... The jls command lets you view all the currently active jails, as shown in Listing 6. Listing 6 Active Jails
18%
Comparing Ceph and GlusterFS
21.04.2015
Home »  Archive  »  2014  »  Issue 23: 10 Ti...  » 
Lead Image © agencyby, 123RF.com
-r--r-- 2 root root 6 3. Feb 18:36 .glusterfs/0d/19/0d19fa3e-5413-4f6e-abfa-1f344b687ba7 # # ls -alid dir1 .glusterfs/fe/9d/fe9d750b-c0e3-42ba-b2cb-22ff8de3edf0 .glusterfs /00/00
18%
Law of Averages – Load Averaging
01.02.2013
Home »  Articles  » 
 
at the output of uptime [1] on OS X:   13:03 up 2 days, 12:01, 2 users, load averages: 0.52 0.59 0.63   The uptime command displays the load average in its common form, averaging the last one, five, and 15
18%
Udev with virtual machines
14.11.2013
Home »  Archive  »  2013  »  Issue 17: Cloud...  » 
Lead Image © orangeline, 123RF.com
-persistent-net-generator.rules openSUSE, Red Hat 6 * /etc/udev/rules.d/70-persistent-net.rules* No net generator rules since 12.3. Instead, the biosdevname package is used to identify the NICs
18%
Hunt down vulnerabilities with the Metasploit pen-testing tool
28.11.2021
Home »  Archive  »  2021  »  Issue 66: Inci...  » 
Lead Image © bluebay, 123rf.com
can use to test security vulnerabilities, enumerate networks, execute attacks, and evade detection" [1], has been written up in a number of books. Linux Magazine reported more than 12 years ago [2
18%
Parallel Programming with OpenMP
21.11.2012
Home »  HPC  »  Articles  » 
(unew(i,j)-u(i,j)) ) 141 ENDDO 142 ENDDO 143 144 IF(MOD(iter,10)==0) WRITE(*,"('iter,diff:',i6,e12.4)") iter,diff 145 146 ! Update solution 147 DO j=2,m-1 148 DO i=2,m-1 149 u(i,j) = unew
18%
S3QL filesystem for cloud backups
09.01.2013
Home »  Archive  »  2013  »  Issue 18: New W...  » 
Lead Image © stylephotographs, 123RF.com
with your S3 bucket, and you can use s3sync [6] to sync to S3 (somewhat like rsync). If you are running Windows, these Amazon S3 clients are available for backing up data to Amazon S3: Amazon S3 Transfer

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