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16%
Manage OpenVPN keys with Easy-RSA
06.10.2019
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Lead Image © Orlando Rosu, 123rf.com
the Debian-based, distributions install it along with openvpn – one exception being Ubuntu, which only offers easy-rsa starting with Cosmic Cuttlefish (Ubuntu version 18.10) [3]. The successor, Easy-RSA 3
16%
Getting started with the Apache Cassandra database
06.10.2019
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Photo by Almos Bechtold on Unsplash
Stax Insights [3]. The former enables flexible scalability in Cassandra clusters and consumption-based billing supported by the stability and performance enhancements of DataStax Enterprise, which monitors
16%
Kea, the ISC's successor to the DHCP daemon
03.08.2023
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Photo by Markus Winkler on Unsplash
In early October 2022, the Internet Systems Consortium (ISC) released versions 4.4.3-P1 and 4.1-ESV-R16-P2 of the ISC Dynamic Host Configuration Protocol (DHCP) server. At the same time, the non
16%
Protecting your web application infrastructure with the Nginx Naxsi firewall
18.07.2013
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Pansiri Pikunkaew, 123RF
backend3.example.com server; 05 backend4.example.com server down; 06 backend5.example.com backup server; 07 } 08 09 upstream fallback { 10 fallback1.example.com server: 8081; 11 } 12 13 14 server { 15 % 16
16%
Asynchronous PostgreSQL
12.09.2013
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Lead Image © Fesus Robert, 123RF.com
.pl 00:00:00.50023 The output shows the amount of computing time the database engine consumed. You can pass in the desired time as a CGI parameter: $ curl http://localhost/cgi/burn0.pl\?3 00
16%
Storage across the network with iSCSI and Synology DiskStation Manager
04.12.2024
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Lead Image © Vladimir Nenov, 123RF.com
. In this case you will select the Quiet Mode Option. The final touch will be to make sure you get alerts when something fails at 3:00am, so you will be notified (or not). The Beep Control option is especially
16%
pfSense firewall and router distribution
30.11.2025
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© Sergey Mironov, 123RF.com
access point, a DNS server, and even a WLAN access point. Despite all this, the complete system weighs in at just 100MB, and to get started, you just need a USB stick and 128MB of RAM. If the built
16%
Clustering with OpenAIS and Corosync
30.11.2025
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brunoilfo, 123RF.com
ID. Version 3.0 of the cluster suite (in RHEL 6 and Fedora 10 or later), replaces OpenAIS with Corosync [3]. Viewed superficially, not too many changes are seen between the two cluster managers ... 3
16%
High availability clustering on a budget with KVM
30.11.2025
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Yulia Saponova, 123RF.com
" domain="kvm-node1"/> 47 48 49 50 51 --> 52
16%
Monitor your nodes with collectl
30.11.2025
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© nobeastsofierce, 123RF.com
has some capabilities [3] that sar does not have. A collection of supporting tools [4] can also help collectl gather and post-process data. Collectl is easy to install if Perl is already installed

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