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20%
Using a Bash script to mirror external monitors
10.06.2015
Home »  Archive  »  2015  »  Issue 27: Fault...  » 
Lead Image © bowie15, 123RF.com
"} ) 09 10 # force called programs to english output 11 LANG=C LC_ALL=C 12 13 function die { 14 echo 1>&2 "$*" 15 exit 10 16 } 17 18 function get_display_resolution { 19 local find_display="$1
20%
TCP Stealth hides open ports
10.04.2015
Home »  Archive  »  2015  »  Issue 26: OpenS...  » 
Lead Image © momo5287, 123RF.com
is then establishment of a totally normal connection. If you want to try this out yourself, you can check out previous articles in Linux Magazine [4]-[6]. Alternatively, you can start with the Knockd [7] project
20%
NetFlow reporting with Google Analytics
10.06.2015
Home »  Archive  »  2015  »  Issue 27: Fault...  » 
Lead Image © Qi Feng, 123RF.com
) Newer implementations with NetFlow version 9 offer additional information about Multicast, IPv6, BGP (Border Gateway Protocol), and MPLS (Multiprotocol Label Switching). The package's information content
20%
Tuning I/O Patterns in Python
18.12.2013
Home »  HPC  »  Articles  » 
(One-by-One) 1 #include 2 3 /* Our structure */ 4 struct rec 5 { 6 int x,y,z; 7 float value; 8 }; 9 10 int main() 11 { 12 int counter; 13 struct rec my_record; 14 int counter_limit; 15
20%
Migrating CentOS to Rocky Linux with migrate2rocky
06.10.2022
Home »  Archive  »  2022  »  Issue 71: Kuber...  » 
Photo by Ray Hennessy on Unsplash
corresponds to RHEL 8 (with 4.x kernels), of which multiple minor versions have been released since. Rocky Linux 8.4 appeared over a month after RHEL 8.4, whereas 8.5 and 8.6 were released less than a week
20%
Visualizing time series data
21.08.2014
Home »  Archive  »  2014  »  Issue 22: OpenS...  » 
Lead Image © Maxim Kazmin, 123RF.com
_port = 2003; 10 11 # create Socket 12 my $socket = IO::Socket::INET -> new(PeerAddr => $remote_host, 13 PeerPort => $remote_port, 14 Proto => "tcp", 15 Type => SOCK_STREAM) 16 or die "Couldn
20%
Tuning I/O Patterns in C
31.07.2013
Home »  HPC  »  Articles  » 
Code Example 1 #include 2 3 /* Our structure */ 4 struct rec 5 { 6 int x,y,z; 7 float value; 8 }; 9 10 int main() 11 { 12 int counter; 13 struct rec my
20%
Exploring the HPC Toolbox
04.11.2011
Home »  HPC  »  Articles  » 
on RAID systems in the background. Linux as a High-Performance Operating System Computer experts, or in fact anybody who is interested in doing so, can check out the biannual top 500 list to discover
20%
Programming with OpenMP
07.11.2011
Home »  HPC  »  Articles  » 
     #pragma omp parallel for shared (sum) private (i) 12     for ( i=0; i < 1000000; i++) { 13         #pragma omp critical (sum_total) 14         sum = sum + a[i]; 15     } 16     printf("sum=%lf\n",sum); 17
20%
File Compression for HPC
10.11.2021
Home »  HPC  »  Articles  » 
. As the level of compression increases, the amount of time to perform the compression increases and the amount of memory used increases. Compress level -6 is the default and is a reasonable trade-off between

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