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9%
Best practices for KVM on NUMA servers
20.05.2014
Home »  Archive  »  2014  »  Issue 20: IPv6...  » 
Lead Image © Joe Belanger, 123RF.com
Front Side Bus (FSB) of previous generations of x86 systems bumped into this saturation problem. AMD solved it with HyperTransport (HT) technology and Intel with the QuickPath Interconnect (QPI ... 20
9%
Getting Started with HPC Clusters
05.06.2013
Home »  HPC  »  Articles  » 
-channel; 1 PCIe 2.0x16 slot, 1 PCI slot; 2x SATA 3Gbps connectors, RAID-0/1/10; Realtek 8105E GigE NIC 1 $42.99 $42.99 1866MHz dual-channel memory 2x 2GB = 4GB total memory
9%
Intruder detection with tcpdump
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Monika Wisniewska, 123RF.com
. -n Do not resolve IP addresses to domain names or port numbers to service names. -nn Don't resolve hostnames or port names. -X Show packet's content in both hex
9%
Monitoring Cloud Service Charges
17.08.2011
Home »  CloudAge  »  Blogs  »  Dan Frost's Blog  » 
 
_costs = { 't1.micro' => 0.02, 'm1.small' => 0.095, 'c1.medium' => 0.19, 'm2.2xlarge' => 1.14, 'm2.4xlarge' => 2.28 } Then I list the regions. This could have been dynamic, but I don’t want
9%
HDF5 with Python and Fortran
21.03.2017
Home »  HPC  »  Articles  » 
  18      print "dset.shape = ",dset.shape 19  20      print "dset.dtype = ",dset.dtype 21  22      print "dset.name = ",dset.name 23    24      print "f.name = ",f.name 25    26      grp
9%
The top three SSH tricks
14.08.2017
Home »  Archive  »  2017  »  Issue 40: Lean...  » 
Lead Image © Fotoflash,Fotolia.com
-A INPUT -p tcp -s [IP address of allowed server] --dport 22 -j ACCEPT on the server to which you want to SSH. Trick 2: Copying Files Securely The SSH protocol also includes Secure Copy (SCP
9%
Chronicles
30.05.2021
Home »  Archive  »  2021  »  Issue 63: Autom...  » 
Lead Image © Maxim Kazmin, 123RF.com
can't be bothered to do what's right, although it's your responsibility to be sure they do. That sounds a lot like a classic catch-22 situation. Although, I never read the book or saw the movie, I
9%
Gatling load-testing tool
03.02.2022
Home »  Archive  »  2022  »  Issue 67: syst...  » 
Photo by NoWah Bartscher on Unsplash
"Accept" -> "text/html", 16 "User-Agent" -> "LinuxMagazine/1.0.1", 17 "Accept-Encoding" -> "gzip, deflate", 18 "Connection" -> "keep-alive", 19 "DNT" -> "1" ) 20 21 // http connector 22
9%
The fail2ban intrusion prevention framework
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Flavijus Piliponis, 123RF.com
/filter.d/sasl.conf: failregex = (?i): warning: [-._\w]+\[\]: SASL (?:LOGIN|PLAIN|(?:CRAM|DIGEST)-MD5) authentication failed: authentication failure A quick hunt through my /var/log/mail.log files reveals: Dec 20 22
9%
Monitor Your Nodes with collectl
28.03.2012
Home »  HPC  »  Articles  » 
are on an IBM DTLA-307020 (20GB drive at Ultra ATA/100) /home is on a Seagate ST1360827AS A 64GB Intel X-25E SSD, courtesy of Intel is mounted as /dev/sdd ext4 filesystem with the default options

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