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22%
FreePBX phone system
28.07.2025
Home »  Archive  »  2025  »  Issue 88: 5 Net...  » 
Lead Image © Lofik, Fotolia.com
that implement SIP with WiFi 6 or 7 have long been available on the market. They use the existing WiFi infrastructure, including WPA3 encryption; they cost hardly any more than DECT phones but can do far more
22%
Passwords, passphrases, and passkeys
26.03.2025
Home »  Archive  »  2025  »  Issue 86: Data...  » 
Lead Image © berkay08, 123RF.com
password, and the need to remember it. Unrealistic Rulesets Bill Burr wrote the official password guide for the U.S. National Institute of Standards and Technology (NIST). According to the guide
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%
Mobile hacking tool
26.03.2025
Home »  Archive  »  2025  »  Issue 86: Data...  » 
Photo by Valentina Curini on Unsplash
also acts as a USB-to-UART/SPI/I2C adapter and supports Bluetooth spamming. This low-energy denial-of-service (DoS) attack can be used to crash iPhones and iPads in particular. Devices with iOS 17
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%
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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