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17%
Red Hat's cloud and virtualization portfolio
18.07.2013
Home »  Archive  »  2013  »  Issue 15: What’...  » 
into Red Hat's cloud stack (Figure 1). After all, CloudForms 1.1, DeltaCloud 1.0, Storage Server 2.0, JBoss Middleware, and Enterprise Virtualization 3.1 form the foundation for the new products
17%
Thrashing the data cache for fun and profit
05.12.2019
Home »  Archive  »  2019  »  Issue 54: NVMe...  » 
Lead Image © Lucy Baldwin, 123RF.com
before moving to the next column. Listing 1 row.c #include #define SIZE 10000 ** int array[SIZE][SIZE] = {0}; int main() { for (int i = 0; i < SIZE; i++) for (int j
17%
OpenACC – Porting Code
07.03.2019
Home »  HPC  »  Articles  » 
relative to the data values. For example, if the difference between two numbers is 100.0, but you are working with values of 10^8, then the difference (0.001%) might not be important. It’s really up
17%
File Compression for HPC
10.11.2021
Home »  HPC  »  Articles  » 
of compression on the command line, as well: $ 7z a -m0=lzma -mx=9 files.7z file.data This command specifies the lzma compression method and compression level 9 (maximum). Because 7z has many options
17%
Secure Your Server with TCP Wrappers
02.10.2012
Home »  Articles  » 
 
port 22) to port 2222, for example, to stop port scans filling up your logs. Without TCP Wrappers enabled, scans might run dictionary attacks on your server where password combinations are guessed by one
17%
Interprocess communication essentials in Perl
05.12.2019
Home »  Archive  »  2019  »  Issue 54: NVMe...  » 
Lead Image © Carsten Reisinger, 123RF.com
waitpid(-1, 0); 20 } else { 21 close READFROMCHILD; 22 close WRITETOCHILD; 23 $thisdata = ; 24 print "The child process read $thisdata"; 25 print WRITETOPARENT "The child process
17%
Harden your Apache web server
25.03.2021
Home »  Archive  »  2021  »  Issue 62: Lean...  » 
PUT DELETE> Require valid-user SetHandler server-status Require ip 192.0.2.0/24 Directory and Files are always processed first. Directory
17%
Jira, Confluence, and GitLab
18.02.2018
Home »  Archive  »  2018  »  Issue 43: Real...  » 
Lead Image © Iaroslav Neliubov, 123RF.com
_python_interpreter variables ideally remain unchanged: They cause Python to connect to the host on standard SSH port 22 and to use Python 3 when calling commands on the target system. Next, check whether the devops.hosts setup
17%
IPv6 Tables
20.05.2014
Home »  Archive  »  2014  »  Issue 20: IPv6...  » 
Lead Image © gepard1979, 123RF.com
LAN_IF=eth0 DMZ_IF=eth2 LAN_NET=2001:db8:1::/64 DMZ_NET=2001:db8:2::/64 Next, completely reset the firewall rules to delete any previously existing rules. You can use the -F option for this. You also
17%
Jenkins Configuration as Code
07.06.2019
Home »  Archive  »  2019  »  Issue 51: Self-...  » 
Lead Image © Amri Wolfgang, 123RF.com
# Jenkins home directory is a volume, so configuration and build history 22 # can be persisted and survive image upgrades 23 VOLUME ${JENKINS_HOME} 24 USER ${JENKINS_USER} 25 26 ARG JENKINS

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