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17%
Manage OpenVPN keys with Easy-RSA
06.10.2019
Home »  Archive  »  2019  »  Issue 53: Secur...  » 
Lead Image © Orlando Rosu, 123rf.com
ret = p.wait() 50 else: 51 ret = p.returncode 52 if (ret != 0): 53 # if not OK 54 if p.stdout: 55 print
17%
Getting started with the Apache Cassandra database
06.10.2019
Home »  Archive  »  2019  »  Issue 53: Secur...  » 
Photo by Almos Bechtold on Unsplash
pingtest.pl 01 #!/usr/bin/perl 02 use Cassandra::Client; 03 04 my $client=Cassandra::Client->new( 05 contact_points=>['172.21.0.2', '172.21.0.4', '172.21.0.5'], 06 username => 'admin', 07
17%
Kea, the ISC's successor to the DHCP daemon
03.08.2023
Home »  Archive  »  2023  »  Issue 76: Energ...  » 
Photo by Markus Winkler on Unsplash
in 2014. At the time of writing, the available Kea versions were 2.2.0 (July 2022, Current-Stable) and 2.3.6 (March 2023, Experimental-Development). Most distributions have prebuilt Kea packages
17%
Protecting your web application infrastructure with the Nginx Naxsi firewall
18.07.2013
Home »  Archive  »  2013  »  Issue 15: What’...  » 
Pansiri Pikunkaew, 123RF
, PHP, and MySQL could take a rest with a load of 0.01. Performance tests on the cache resulted in 100,000 requests per second for 1,000 parallel requests without the base load of the server changing
17%
Asynchronous PostgreSQL
12.09.2013
Home »  Archive  »  2013  »  Issue 16: Docker  » 
Lead Image © Fesus Robert, 123RF.com
Timeout Test $ time curl http://localhost/cgi/burn0.pl\?4.9 00:00:04.900198 real 0m4.958s user 0m0.003s sys 0m0.006s $ time curl http://localhost/cgi/burn0.pl\?5.1 curl: (52) Empty reply from
17%
Storage across the network with iSCSI and Synology DiskStation Manager
04.12.2024
Home »  Archive  »  2024  »  Issue 84: Non-R...  » 
Lead Image © Vladimir Nenov, 123RF.com
Attaching an iSCSI Device $ uname -a Linux DANSBOX 6.8.0-35-generic #35-Ubuntu SMP PREEMPT_DYNAMIC Mon May 20 15:51:52 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux $ lsblk NAME MAJ:MIN RM SIZE RO TYPE
17%
Lmod – Alternative Environment Modules
30.01.2013
Home »  HPC  »  Articles  » 
, for a library that uses a specific compiler and MPI library, you would end up with a module names like atlas-3.10.0-opempi-1.6.2-open64-5.0 . The name is useful because it tells the user the library version
17%
Security data analytics and visualization with R
05.12.2014
Home »  Archive  »  2014  »  Issue 24: Visua...  » 
Lead Image © Rancz Andrei, 123RF.com
among the integrated development environment (IDE) options available for R, I use RStudio [8]. I downloaded RStudio 0.98.1083 Debian 6+/Ubuntu 10.04+ (32-bit) and ran: sudo dpkg -i rstudio-0.98.1083-i386
17%
Service mesh for Kubernetes microservices
09.04.2019
Home »  Archive  »  2019  »  Issue 50: Bpfilter  » 
Lead Image by Ricardo Gomez Angel on Unsplash.com
) service mesh. Although it uses the Envoy proxy (written in C++) as its default sidecar, it can optionally use Linkerd as its data plane. Version 1.1.0 was just released in March 2019. Istio 1.1 provides
17%
Prepare, analyze, and visualize data with R
07.06.2019
Home »  Archive  »  2019  »  Issue 51: Self-...  » 
Lead Image © Buchachon Petthanya, 123RF.com
(version 0.8) and dplyr (version 0.8) packages. The example in Listing 4 creates a small data frame with the columns a, b, and colour. R then computes the c and sum columns with the R base and dplyr

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