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Introduction to behavior-driven monitoring
30.11.2025
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Mariya Herasymenko, 123RF
: "Behavior-Driven Infrastructure." Taking Stock Cucumber-Nagios is integrated as a plugin for any open source monitoring system that can interpret the values returned by Nagios plugins. This tool is based
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A simple approach to the OCFS2 cluster filesystem
30.11.2025
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© Kheng Ho Toh, 123RF.com
filesystem (AFS) is another network filesystem that is available in a free implementation, OpenAFS [3]. On the other hand are cluster filesystems. Before computers can access "distributed" data, they first
24%
Script utilities in depth: grep, awk, and sed
30.11.2025
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© jirkaejc, 123RF.com
the beginning of each ordinary paragraph within the file: grep "opening tag because it can take different
24%
Installing and managing thedistributed GlusterFS filesystem
30.11.2025
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© Tetiana Pustovoitova, 123RF.com
shouldn't be much more complicated than installing the packages. In each case, you need to ensure that FUSE, OpenSSH, Wget, and, if needed, the NFS tool (which is available in the nfs-common package
24%
A GUI for Warewulf 4
06.05.2025
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I think virtually everyone in HPC knows the Warewulf open source cluster provisioning and management tool. I wrote about Warewulf starting with Warewulf 3, followed by a series on Warewulf 4. Since
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Full-spectrum security scanner
07.10.2025
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Photo by Jakob Boman on Unsplash
Trivy is an open source, all-in-one security scanner by Aqua Security that has rapidly become a go-to tool in the DevSecOps toolkit [1]. It earned this reputation by combining multiple security
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Identify malicious traffic with Maltrail
26.03.2025
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Lead Image © Andrea De Martin, 123RF.com
As digitalization makes further headway into business processes, the vulnerability of IT infrastructures increases. Just one undetected vulnerability could open the door to potential attackers. Even
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Advanced security in Windows Firewall
31.10.2025
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© Andrius Repsys, 123RF.com
. Additionally, you can Change notification settings , which opens the same window that lets you enable or disable the Windows Firewall. The only notification setting you can modify is the one that enables
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Security without firewalls
31.10.2025
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© rukanoga, 123RF.com
specifically network services) to a minimum. By having, say, only three ports open on your server, such as HTTP, SMTP, and SSH, you're significantly limiting the number of attack vectors on your system. Aside
24%
Agile system management in large-scale environments with Func
30.11.2025
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bowie15, 123RF
a for loop to open an SSH connection to each of the servers and running the update command is a quick workaround: # for i in `seq 1 10`; do ssh www$i update httpd; done If the administrative SSH key

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