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17%
Time-series-based monitoring with Prometheus
14.08.2017
Home »  Archive  »  2017  »  Issue 40: Lean...  » 
Lead Image © Juthamas Oonhawat, 123RF.com
such as containers. In native cloud environments, Prometheus [3], with its time series database approach, has therefore blossomed into an indispensable tool. The software is related to the Kubernetes [4] container
17%
A self-healing VM system
07.06.2019
Home »  Archive  »  2019  »  Issue 51: Self-...  » 
Lead Image © THISSATAN KOTIRAT , 123RF.com
with timeout 15 seconds 03 if status != 0 for 3 cycles then exec "/usr/bin/ansible-playbook rebuild_node.yml" 04 if status != 0 for 3 cycles then exec "/usr/bin/mail -s 'Node 5 ping failed
17%
Rex
19.02.2013
Home »  Articles  » 
" ). Listing 3: Rexfile for Setting Up Apache 01 user "root"; 02 03 Desc "Apache installation"; 04 task "apacheinstall", sub { 05 06    install package => "apache2"; 07    service "apache2" => "start"; 08 09
17%
News for Admins
05.02.2023
Home »  Archive  »  2023  »  Issue 73: Datab...  » 
 
system at the EuroHPC center at CSC in Finland underwent a major upgrade to hold on to the #3 spot, with a score of 0.309 EFlop/s. Leonardo – At #4, the new Leonardo system installed at Euro
17%
Give your servers the once over with Nmap
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© ragsac, 123RF.com
.nmap.org (64.13.134.52): Not shown: 994 filtered ports PORT STATE SERVICE VERSION 22/tcp open ssh OpenSSH 4.3 (protocol 2.0) 25/tcp closed smtp
17%
Installing your own Git server
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
© Guido Vrol, 123RF.com
="/usr/local/bin/gl-auth-command ofrommel",no-port-forwarding,no-X11-forwarding,no-agent-forwarding,no-pty ssh-dss AAAAB3NzaC1kc3MAAACBAOvwG6F0D2v2J8d+RsQFwozOqqFAgGkMfDK86TUA 04 ... 05 # gitolite end If everything worked, you
17%
New features in PHP 8
02.02.2021
Home »  Archive  »  2021  »  Issue 61: Secur...  » 
Lead Image © Maxim Borovkov, 123RF.com
_dump($attributes[0]->getArguments()); The getName() method is used in line 3 of Listing 11, which simply outputs the name of the attribute via var_dump() – in the DatabaseTable example. Similarly, get
17%
Mesh Service for OSI Layers 2 and 3
25.03.2020
Home »  Archive  »  2020  »  Issue 56: Secur...  » 
Photo by James Pond on Unsplash
level of TCP streams and UDP datagrams) and 7 (HTTP/application protocols) can be configured comprehensively, whereas the underlying Layer 2 and Layer 3 network (frames and IP packet layers) cannot. Who ... Mesh Service for OSI Layers 2 and 3
17%
Blending Java with other programming languages
10.04.2015
Home »  Archive  »  2015  »  Issue 26: OpenS...  » 
Lead Image © Ivan Mikhaylov, 123RF.com
engine.eval(new FileReader(args[0])); 09 } 10 } Using ScriptEngineManager (line 6), the code generates a ScriptEngine, which comes with a variety of eval() methods that run scripts from strings
17%
Controlling virtual machines with VNC and Spice
14.03.2013
Home »  Archive  »  2013  »  Issue 13: IPv6...  » 
© Oleg Doroshin, 123RF.com
configuration work is necessary on Linux. You need to set up the Vesa driver explicitly in xorg.conf (Listing 1). Listing 1 Vesa Configuration 01 Section "Device" 02 Identifier "device0" 03

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