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30%
DiffServ service classes for network QoS
04.08.2020
Home »  Archive  »  2020  »  Issue 58: Graph...  » 
Lead Image © Elgris, Fotolia.com
4 Low drop AF11 = 10 (001010) AF21 = 18 (010010) AF31 = 26 (011010) AF41 = 34 (100010) Medium drop AF12 = 12 (001100) AF22 = 20 (010100
30%
News for Admins
04.08.2020
Home »  Archive  »  2020  »  Issue 58: Graph...  » 
 
3297841472b4e53e22e53826eea9e483d993e5) (by Red Hat's David Howells), the notification queue will also "…have the ability to cache your kerberos tickets in the session, user or persistent keyring so
30%
Managing Linux systems with Spacewalk
14.11.2013
Home »  Archive  »  2013  »  Issue 17: Cloud...  » 
Lead Image © NASA
, $user, $pass) = (split); 17 close(IN); 18 19 my $client = new Frontier::Client(url => "http://$server/rpc/api"); 20 my $session = $client->call('auth.login', $user, $pass); 21 22 return ($client
30%
Setting up SSL connections on Apache 2
18.07.2013
Home »  Archive  »  2013  »  Issue 15: What’...  » 
pnphoto, 123RF
Linux distributions, including Debian, Ubuntu, and openSUSE, come with a script named a2enmod to enable dynamically loadable Apache modules. The root user thus enables mod_ssl as follows: a2enmod ssl
30%
Nagios alerts implemented via VoIP
14.03.2013
Home »  Archive  »  2013  »  Issue 13: IPv6...  » 
© Zentilia, 123RF.com
if [[ ! -f /tmp/caller.lock ]]; then 21 touch /tmp/caller.lock 22 locked=true 23 else 24 sleep 5 25 fi 26 done 27 28 # Generating the message 29 $TEXT2WAVE -o $SOUNDFILE -f 8000
30%
Docker and Podman environments on Windows and Mac machines
28.11.2021
Home »  Archive  »  2021  »  Issue 66: Inci...  » 
Lead Image © bowie15 , 123RF.com
systemctl start podman.socket 20 usermod -aG podman $SUDO_USER 21 SHELL 22 end Once you have installed both VirtualBox and Vagrant, either with Homebrew or an installation archive, save
30%
Rethinking RAID (on Linux)
25.03.2021
Home »  Archive  »  2021  »  Issue 62: Lean...  » 
Lead Image © nikkikii, 123RF.com
B/s (1444kB/s)(82.9MiB/60173msec); 0 zone resets [ ... ] Run status group 0 (all jobs): WRITE: bw=1410KiB/s (1444kB/s), 1410KiB/s-1410KiB/s (1444kB/s-1444kB/s), io=82.9MiB (86.9MB), run=60173-60173msec
30%
Working with the Lustre Filesystem
24.02.2022
Home »  HPC  »  Articles  » 
     0        1         0    0      1 1073741824 67108864    4096.0 POSIX      0 Finished            : Tue Jan 25 20:04:13 2022 For a virtual machine deployment on a 1GigE network, I get roughly 2.2GiBps reads, which again, if you think about it, is not bad at all
30%
Lustre HPC distributed filesystem
07.04.2022
Home »  Archive  »  2022  »  Issue 68: Autom...  » 
Photo by Efe Kurnaz on Unsplash
StartTime : Tue Jan 25 20:02:21 2022 Path : /lustre/0/test.01.00000000 FS : 66.8 GiB Used FS: 35.9% Inodes: 47.0 Mi Used Inodes: 0.0% Options: api
30%
Tuning I/O Patterns in Python
18.12.2013
Home »  HPC  »  Articles  » 
FILE *ptr_myfile; 16 17 counter_limit = 100; 18 19 ptr_myfile=fopen("test.bin","wb"); 20 if (!ptr_myfile) 21 { 22 printf("Unable to open file!"); 23 return 1; 24 } 25 for ( counter=1; counter <= counter

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