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16%
Enforce secure workstation configurations
28.07.2025
Home »  Archive  »  2025  »  Issue 88: 5 Net...  » 
Photo by Barnabas Piper on Unsplash
with the +i (immutable) attribute (line 37), preventing even root from modifying or deleting it without explicitly unsetting this flag. Meanwhile, systemd is configured to monitor the file. If a change
16%
SC25 Highlights
20.01.2026
Home »  Articles  » 
 
cooling, just like air cooling, but with the addition of monitoring the system for leaks. Companies are looking at underwater data centers for cooling and even data centers in space. Both have promises
16%
Introduction to OpenMP programming
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
© Frank Rohde, 123RF.com
application. Today, it's very easy to get laptops with at least two, if not four, cores. Desktops can easily have eight cores with lots of memory. You can also get x86 servers with 64 cores that access all
15%
The PHP FastCGI process manager, PHP-FPM
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
© conceptw, 123RF.com
. However, an interpreter process can (accidentally) overwrite or destroy the opcode cache. PHP-FPM therefore monitors the cache and restarts the process automatically if something seems to be going haywire
15%
OpenStack workshop, part 1: Introduction to OpenStack
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
to manage and monitor all of the OpenStack core services (Figure 5). Figure 5: In addition to the agents for Keystone and Glance, all other Open
15%
pfSense firewall and router distribution
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Sergey Mironov, 123RF.com
that the firewall is currently monitoring are shown on a separate screen in Diagnostics | States . In addition to this, pfSense collects statistical data, such as the number of packets inspected. This data
15%
Zarafa on the Univention Corporate Server
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
© Andres Rodriguez, 123RF.com
.cfg, ical.cfg, licensed.cfg, monitor.cfg, ldap.cfg, and spooler.cfg – as well as the Postfix master.cf and maincf mail routing configuration files. Zarafa4ucs thus creates and provides certificates
15%
Finding cracks with Nmap, Portbunny, and Nessus
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Fotoflash, Fotolia.com
will respond with RST whether it is open or closed. The ACK scan is thus only useful for finding out whether a port is filtered. The trick is to monitor the window size, which tells you the cache usage status
15%
Installing and managing thedistributed GlusterFS filesystem
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
© Tetiana Pustovoitova, 123RF.com
which keeps clients from accessing the volume. Then, you can delete as follows: gluster volume delete examplevolume GlusterFS offers profiling and monitoring tools that help you quickly identify
15%
Building more efficient database applications with a graph database
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
© Jakub Krechowicz, 123RF.com
and respond to read operations. If the write master fails, the remaining group elects a new master. The Community edition of Neo4j is released under GPLv3. The Advanced edition includes monitoring capabilities

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