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  • Article (Print) (125)
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24%
Checking password complexity with John the Ripper
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
administrative access can use some powerful tools to crack the passwords on your system. The hacker will save a system's password and shadow files to a remote location. This procedure allows the hacker to crack
24%
Monitoring virtualization environments with Nagios and Icinga
30.11.2025
Home »  Archive  »  2010  »  Issue 2: Backup...  » 
Sergej Khackimullin, 123RF
before other problems. Although the Nagios Remote Plugin Executer (NRPE) is the standard in many environments, SSH is preferable, not only because of its firewall awareness and vendor updates, but above
24%
Server virtualization with Citrix XenServer
30.11.2025
Home »  Archive  »  2010  »  Issue 2: Backup...  » 
Goss Vitalij, Fotolia
information GUI, which provides a plethora of useful information concerning the server. The SMTP Agent that installs at the same time lets you remotely monitor XenServer using, say, Nagios. The close link
24%
Can your web server be toppled with a single command?
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
© Almagami, 123RF.com
. Of course, you can apply these rate-limiting rules to any port number on your server, but proceed with caution and don't lockout remote access by accident if you decide to experiment with the ruleset. What I
24%
News for Admins
02.06.2026
Home »  Archive  »  2026  »  Issue 93 Disast...  » 
 
Documentation annotation Files app Calendar Gnome 50 also gets a "major performance boost" from new hardware acceleration support. "By using your computer's graphics processor to stream video, remote
24%
Power Pages in Microsoft Dataverse
02.06.2026
Home »  Archive  »  2026  »  Issue 93 Disast...  » 
Lead Image © shahidirfan100, 123RF.com
to display them in the design studio or a preview. Dataverse also lets you integrate external data sources. Virtual tables enable integration with external data [1]. The data is copied from remote systems
24%
Verifying TLS Certificates
06.08.2026
Home »  Archive  »  2026  »  Issue 94 OpenSt...  » 
Lead Image © Christos Georghiou, 123RF.com
--location --remote-name https://github.com/square/certigo/releases/download/v1.17.1/certigo-windows-amd64 ren certigo-windows-amd64 certigo.exe Although the precompiled version is convenient
24%
Protecting web servers with ModSecurity
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
© KrishnaKumar Sivaraman, 123RF.com
rules that protect you against SQL injection, cross-site scripting, or local and remote file inclusion attacks, for example, you need in-depth knowledge of how attacks on web servers work. Of course
24%
I/O benchmarks with Fio
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© Kheng Ho Toh, 123RF.com
teaches performance analysis and tuning for various training service providers. Thanks to Jens Axboe for answering many questions and to Teamix for providing the test laptop.
24%
The fail2ban intrusion prevention framework
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Flavijus Piliponis, 123RF.com
increasingly annoyed with web server logs filling up with nefarious probes attempting to compromise PHP with remote exploits (and a myriad of other HTTP attacks). It got to the point at where a large proportion

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