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22%
Managing Logs
06.08.2026
Home »  Archive  »  2026  »  Issue 94 OpenSt...  » 
Photo by Conny Schneider on Unsplash
://packages.graylog2.org/repo/packages/graylog-6.3-repository_latest.deb sudo dpkg -i graylog-6.3-repository_latest.deb sudo apt update sudo apt install graylog-datanode Graylog uses OpenSearch as the search
22%
Virtualize Browsers, Apps, and Desktops
02.06.2026
Home »  Archive  »  2026  »  Issue 93 Disast...  » 
Lead Image © denis cristo, 123RF.com
. The Neko project does not have any X (Twitter) account[s] and is not involved in any crypto tokens. Please do not fall for these scams." Developers can also carry out manual or automated tests
22%
Bare metal lifecycle management with six open source tools
07.10.2025
Home »  Archive  »  2025  »  Issue 89: Autom...  » 
Photo by Beth Macdonald on Unsplash
of a new setup phase in the data center. Foreman can be installed retrospectively, but this is even more time consuming. Tinkerbell: Success with Kubernetes Tinkerbell [3] has made a name for itself
22%
Proactive threat detection
07.10.2025
Home »  Archive  »  2025  »  Issue 89: Autom...  » 
Lead Image © dunord, 123RF.com
it to process after loading, which makes it clear that Falco is not an entirely new solution, because the kernel driver is, strictly speaking, legacy software and dates back to the days when eBPF [3
22%
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
22%
Netcat – The admin's best friend
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
© Dmitry Rukhlenko, 123RF.com
seconds, for example: # nc -p 16000 -w 30 examplehost.tld 22 If firewalling is in place and you need to originate your connection from a specific IP address to open a port, then you can enter: # nc -s 1.2.3
22%
Testing Disaster Recovery Plans with Chaos Engineering
02.06.2026
Home »  Archive  »  2026  »  Issue 93 Disast...  » 
Photo by Mark Timberlake on Unsplash
therefore gained significance primarily because of the proliferation of cloud, DevOps, and Kubernetes approaches. The best-known tools are Gremlin [3] and LitmusChaos [4] (Table 1). Gremlin has been
22%
Using the Expect scripting environment
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© Ivan Mikhaylov, 123RF.com
to connect to the remote host with ssh. (6) expect – Wait for "(yes/no)? " in the output. This is the end of the several-line output about host key exchange. (7) send – Send the string "yes" plus
22%
Create a high availability VM with  DRBD9  and Reactor
07.10.2025
Home »  Archive  »  2025  »  Issue 89: Autom...  » 
Photo by Emma Simpson on Unsplash
to this component as Horrorsync. Corosync was later split up again. Whereas Corosync now primarily handles the exchange of data between the different systems in a cluster, Kronosnet [3] ensures that the information
22%
Free backup tool for data centers
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© andresr, fotolia.com
Append = "/var/lib/bacula/log" = all, !skipped 27 Console = all, !skipped, !saved 28 Mail = root@localhost = all, !skipped 29 Mail Command = "/usr/sbin/bsmtp -h localhost -f \"\(Bacula\) \<%r\>\" -s

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