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12%
Network overlay with VXLAN
06.10.2022
Home »  Archive  »  2022  »  Issue 71: Kuber...  » 
Photo by Fikri Rasyid on Unsplash
with more modern methods by MD5 authentication in the BGP session or on the basis of TCP authentication options (TCP-AO). The objective of TCP-AO is to provide protection against blind insertions and replay
12%
Real-time log inspection
02.02.2021
Home »  Archive  »  2021  »  Issue 61: Secur...  » 
Lead Image © bowie15, 123RF
in logfiles, such as the daily reporting provided by the excellent Logwatch [1]. Although these tools are ideal for a small number of entries, few offer analysis in real time with the sophistication of Teler
12%
HTTP/1.1 versus HTTP/2 and HTTP/3
30.05.2021
Home »  Archive  »  2021  »  Issue 63: Autom...  » 
Lead Image © alphaspirit, 123RF.com
], it would be impossible today to provide a large number of Internet sites on a single server. Each Internet site would need its own HTTP daemon and its own server. For a server to manage multiple domains
12%
Develop your own scripts for Nmap
03.12.2015
Home »  Archive  »  2015  »  Issue 30: OpenD...  » 
Lead Image © Raman Maisei, 123RF.com
the desired actions. Nmap provides a dedicated test server in the scanme.nmap.org domain for this purpose. Use the following command for your first evaluations: nmap --script /path/userdefined NSE
12%
PostgreSQL 9.5 – What's new; what's better?
11.02.2016
Home »  Archive  »  2016  »  Issue 31: Tunin...  » 
Lead Image © Sergey Nivens, 123RF.com
. With this system, you can, for example, simply implement a multitenancy system, which means an application can be provided to multiple, separate customers who use the same table internally – without running the risk
12%
Encrypted backup with Duplicity
11.04.2016
Home »  Archive  »  2016  »  Issue 32: Measu...  » 
Lead Image © Boing, Photocase.com
(/), you should at least always exclude /proc, the dynamic filesystem that provides a window into the running kernel. Otherwise, you are in danger of Duplicity tripping up all over its content. For each
12%
Building a low-powered NAS
25.03.2020
Home »  Archive  »  2020  »  Issue 56: Secur...  » 
Lead Image © vesuv, photocase.com
NAS setup comprises a specific combination of hardware and software designed to provide file sharing through services such as the Network File System (NFS) and Server Message Block (SMB) protocols
12%
System logging for data-based answers
18.02.2018
Home »  Archive  »  2018  »  Issue 43: Real...  » 
Lead Image © Gerard Boissinot, Fotolia.com
). If you want or need more granular data than uptime provides for CPU monitoring, I would suggest using mpstat [5], which is part of the sysstat [6] package included in many distributions. The mpstat
12%
Using loop directives to improve performance
05.02.2019
Home »  Archive  »  2019  »  Issue 49: Anato...  » 
Lead Image © orson, 123RF.com
directives. A simple profile of the application can provide you with the stack rank of the most time consuming routines. As you add directives to your application, be sure to check the output. It should match
12%
Database availability groups – High availability with Exchange Server 2012
20.05.2014
Home »  Archive  »  2014  »  Issue 20: IPv6...  » 
Lead Image © Pavel Isupov, 123RF.com
is not a complicated matter. Companies that use more than one Exchange server should use the function to provide failsafes in the enterprise. The setup is quick, whether you use the Exchange Management Console

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