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25%
Hybrid public/private cloud
30.01.2020
Home »  Archive  »  2020  »  Issue 55: AWS L...  » 
Photo by JJ Ying on Unsplash
region: eu-west-3 08 licensefile: license.lic 09 wholenet: 10.100.0.0/16 10 frontnet: 10.100.254.0/28 11 netmaskback: 17 12 backnet: "10.100.0.0/{{ netmaskback }}" 13 lnet: 10.0.2.0
25%
What Is an Inode?
23.03.2022
Home »  HPC  »  Articles  » 
-34-1804/72 /dev/loop7         17441    17441         0  100% /snap/gnome-3-38-2004/87 /dev/nvme1n1p1  62513152  7087560  55425592   12% /home /dev/nvme0n1p1         0        0         0     - /boot/efi /dev/loop8         17495    17495         0
25%
Programming with OpenMP
07.11.2011
Home »  HPC  »  Articles  » 
 #include  03 #endif 04 #include  05 int main() { 06     double a[1000000]; 07     int i; 08     #pragma omp parallel for 09     for (i=0; i<1000000; i++) a[i]=i; 10     double sum = 0; 11
25%
Visualizing time series data
21.08.2014
Home »  Archive  »  2014  »  Issue 22: OpenS...  » 
Lead Image © Maxim Kazmin, 123RF.com
_interval); 04 use Net::Statsd; 05 06 $Net::Statsd::HOST = 'localhost'; # Default 07 $Net::Statsd::PORT = 8125; # Default 08 09 my $t0 = [gettimeofday]; 10 11 my($one, $two, $three) = map { $_ x 4096
25%
Interprocess communication essentials in Perl
05.12.2019
Home »  Archive  »  2019  »  Issue 54: NVMe...  » 
Lead Image © Carsten Reisinger, 123RF.com
print WRITEHANDLE "Here is some text"; 11 close(WRITEHANDLE); 12 waitpid($processed, 0); 13 } else { 14 close(WRITEHANDLE); 15 while (defined($text = )) { 16 print $text; 17
25%
Exploring SQL Server on Linux
13.12.2018
Home »  Archive  »  2018  »  Issue 48: Secur...  » 
Lead Image © yewkeo, 123RF.com
_64 2/4 08 Installing : gdb-7.6.1-110.el7.x86_64 3/4 09 Installing : mssql-server-14.0.3026.27-2.x86
25%
Look for file changes and kick off actions with Watchman
10.04.2015
Home »  Archive  »  2015  »  Issue 26: OpenS...  » 
Lead Image © leksele, 123RF.com
"version": "3.0.0", 03 "watched": [ 04 { 05 "path": "/opt/repos", 06 "triggers": [ 07 { 08 "name": "repos-sync", 09 "command": [ 10 "/usr
25%
Static code analysis finds avoidable errors
06.10.2019
Home »  Archive  »  2019  »  Issue 53: Secur...  » 
Lead Image © Andrey KOTKO, 123RF.com
* argv []) 06 /*@requires maxRead(argv) >= 1 @*/ 07 /*@-modfilesys@*/ 08 { 09 /*@-initallelements@*/ 10 char buffer [BUFSIZE] = {'\0'}; 11 /*@+initallelements@*/ 12 if ( ( argc
25%
Extending OpenNebula with hooks
09.01.2013
Home »  Archive  »  2013  »  Issue 18: New W...  » 
Lead Image © Greg Epperson, Photocase.com
=/var/log/one/accounting.log 04 05 case "$1" in 06 "on"|"off") 07 mode=$1 08 shift 09 ;; 10 *) 11 echo "$0 error: wrong mode." >&2 12 exit 1 13 ;; 14 esac 15 16 if [ "$1
25%
Build a honeypot with real-world alerts
01.08.2019
Home »  Archive  »  2019  »  Issue 52: Stop...  » 
Lead Image © Bruce Rolff, 123RF.com
. The takeaway is the -j LOG option (line 12), which logs port scanning behavior to a logfile with the iptables: prefix. Listing 1 iptable Rules 01 *filter 02 *filter 03 :INPUT ACCEPT [0:0] 04

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