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28%
Tuning SSD RAID for optimal performance
09.08.2015
Home »  Archive  »  2015  »  Issue 28: SSD RAID  » 
Lead Image © ELEN, Fotolia.com
to form a page (e.g., 8KB). Several pages then form a block (~2MB). At this level, the first peculiarity of flash memory already comes to light: Whereas new data can be written to unused pages, subsequent
28%
Using the MQTT IoT protocol for unusual but useful purposes
03.12.2015
Home »  Archive  »  2015  »  Issue 30: OpenD...  » 
Lead Image © Heiko Küverling, 123RF.com
. Clients don't actually know whether they really see all the messages that arrive at the broker; the broker ACLS decide this. Messages transport payloads; payload data can also be binary and be up to 256MB
28%
Monitoring network computers with the Icinga Nagios fork
17.06.2011
Home »  Archive  »  2010  »  Issue 1: System...  » 
 
community needs more closely and to integrate patches more quickly. The first stable version, 1.0, was released in December 2009, and the version counter has risen every couple of months ever since. Icinga ... 2010
28%
Debugging the Linux kernel with the Qemu emulator
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Daniela Mangiuca, 123RF.com
in your kernel configuration and possibly rebuild the kernel. Including the symbols, vmlinux weighs in at more than 40MB. Next, open a connection to the debug server by typing target remote :1234 (Figure 3
28%
Monitoring network computers with the Icinga Nagios fork
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
© Alterfalter, 123RF.com
community needs more closely and to integrate patches more quickly. The first stable version, 1.0, was released in December 2009, and the version counter has risen every couple of months ever since. Icinga ... 2010
28%
Hacking Mutillidae II
03.08.2023
Home »  Archive  »  2023  »  Issue 76: Energ...  » 
Photo by USGS on Unsplash
, 2010, 2013, and 2017 Top 10 reports). Updates are promised frequently, ensuring the application's stability and potentially offering new features or improvements. A single button click can reset
28%
ZAP provides automated security tests in continuous integration pipelines
23.08.2017
Home »  Archive  »  2017  »  Issue 41: Kuber...  » 
Lead Image © Galina Peshkova, 123RF.com
longer, but certainly you won't be too put out by server specifications at first. However, you might want to up the RAM and CPU specs for CI integration. Sadly, sometimes 512MB of RAM even on Linux boxes
28%
Getting started with the Apache Cassandra database
06.10.2019
Home »  Archive  »  2019  »  Issue 53: Secur...  » 
Photo by Almos Bechtold on Unsplash
company in 2010 to launch a commercial Cassandra offshoot in 2011: DataStax Enterprise (DSE) has several additional features compared with Apache Cassandra and is now used by some of the world's largest
28%
Monitoring your cluster with a home-grown OCF agent
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Aleksey Mnogosmyslov, 123RF.com
on hand; it is available on the web [2]. You will also find it useful to have the current version 1.0.2 [3] of the OCF Resource Agent Developer's Guide , created by Hastexo's Florian Haas. The Developer
28%
Configuring the JBoss application server
30.11.2025
Home »  Archive  »  2011  »  Issue 4: Secure...  » 
HONGQI ZHANG, 123RF.com
environment, make sure the JAVA_HOME variable points to the Java root directory (Listing 1). Listing 1 Java Environment 01 # export JAVA_HOME=/usr/lib/jvm/jre-1.6.0-openjdk 02 # echo $JAVA

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