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51%
Warding off the rise of VoIP spam
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Izaokas Sapiro, 123RF.com
't envisage a centralized instance for mutual authentication. Although RFC 4474 [3] defines how to sign SIP messages to allow Alice to authenticate against Bob, there are no widespread implementations
51%
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
51%
Protecting web servers with ModSecurity
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
© KrishnaKumar Sivaraman, 123RF.com
but comprehensively documented [3]. It logs HTTP requests and gives administrators unrestricted access to the individual elements of a request, such as the content of a POST request. It also identifies attacks in real
51%
A free anti-spam tool for Exchange environments
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
© baurka, 123RF.com
businesses might also be interested in the POP3 connector in ASSP. This feature lets you pick up email from various POP3 servers, scan the messages for viruses and spam, and then forward the results
51%
What's new in Small Business Server 2011
30.11.2025
Home »  Archive  »  2011  »  Issue 3: Are yo...  » 
A&M Rovenko, 123RF
of editions. If you want to test the new version, you can install a pre-release copy. The trial version [1] is available with a download footprint of around 6.7GB. Besides SBS 2011 Standard and Essentials ... 3
51%
PipeCD for CI/CD
28.07.2025
Home »  Archive  »  2025  »  Issue 88: 5 Net...  » 
Photo by Kazuo ota on Unsplash
/CD solution believes it can do better. Another point of criticism is that the tool itself is now extremely complex. DeployKF [2], which is used to roll out the AI management system Kubeflow [3] with Argo
51%
Aggregate alerts from various monitoring systems
07.10.2025
Home »  Archive  »  2025  »  Issue 89: Autom...  » 
Lead Image © Chittima Kasa, 123RF.com
alerts. You can save yourself some work with the docker-alerta Docker image [3] from the GitHub repository. To begin, open the docker-compose.yml file and change the value for ADMIN_PASSWORD; then, start
51%
Effective honeypots with sensors on production systems
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© monophoto, 123RF.com
(Figure 6). Figure 6: Registered attacks on various ports of production systems at the University of Bonn courtesy of HoneypotMe. All told, some 3
51%
Container compliance with dockle
27.05.2025
Home »  Archive  »  2025  »  Issue 87: Light...  » 
of configuration files). If you need a little help constructing your Dockerfiles, you are gently reminded to look at the best practices page [3] on the Docker website. On Your Marks In this example, I look
51%
Script utilities in depth: grep, awk, and sed
30.11.2025
Home »  Archive  »  2011  »  Issue 4: Secure...  » 
© jirkaejc, 123RF.com
. Here are some examples: _{3,} – Three or more consecutive underscores · {2,5} – Between two and five spaces in a row (where · is a space) (the·){2} – Two consecutive

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