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  • [x] Creation time: Last year
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  • Article (Print) (79)
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38%
Strategies for routing voice calls around a firewall
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
gnohz, 123RF.com
and then rewrites the Contact header to contain the publicly reachable NAT gateway socket. Listing 3 shows an Invite request that has been modified by the SIP proxy: 18.17.16.15 is the gateway's public address; 20.22
38%
New Approaches to DNS
02.06.2026
Home »  Archive  »  2026  »  Issue 93 Disast...  » 
Lead Image ©bowie15, 123RF.com
:26:27 UTC ;; From 149.112.112.112@853(QUIC) in 9.6 ms DNS over HTTP/3 The relatively new DNS over HTTP/3 (DoH3) protocol feels like yet another upgrade of DoH. This time it's not a clone as a cool new
38%
Taming the HPC Software Stack Fragmentation Problem
21.07.2026
Home »  Articles  » 
 
pattern is: $ python train.py ImportError: /lib/x86_64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.30' not found (required by /home/user/.conda/envs/ml/lib/python3.10/ site
38%
Galera Cluster for MySQL
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Noel Powell, fotolia.com
MySQL-shared-compat-5.5.22-2.el6.x86_64.rpm rpm -i MySQL-client-5.5.22-1.el6.x86_64.rpm With CentOS 6, the following additional package is necessary: yum install openssl098e.x86_64 The easiest way
38%
Creating an SFTP jail
30.11.2025
Home »  Archive  »  2011  »  Issue 3: Are yo...  » 
Juan Manuel Ordonez, 123RF.com
be replaced solely with the sshd configuration directives shown in Listing 3. Line 16 specifies that SFTP will listen on port 2202 instead of the default SSH port 22. This option is configurable and left ... 3
38%
Targeted defense against brute force attacks
30.11.2025
Home »  Archive  »  2011  »  Issue 3: Are yo...  » 
Andrii IURLOV, 123RF.com
client requests (1) in the auth.log file (2). Then sshguard (3) monitors the file and creates a firewall rule (4) that blocks the client (5) if it notices to many login attempts. If the attacker ... 3
38%
Configuration management with Chef
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
© Alistair Cotton, 123RF.com
-certs, make, gcc, and g++. The certificates from ssl-cert will be required later. According to the how-to http://1, Chef prefers RubyGems version 1.3.6 or newer, but not 1.3.7. This version contains a bug
38%
Service Management Facility (SMF) in OpenSolaris
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Steve Cukrov, Fotolia.com
– Another multiuser mode for some extensions 5 – Shut down and switch off the system 6 – Reboot the system The default runlevel is 3, and the default
38%
The fail2ban intrusion prevention framework
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Flavijus Piliponis, 123RF.com
the smoke and mirrors that some pieces of software employ to keep their workings secret, fail2ban is transparent in the work it does behind the scenes. In simple terms, fail2ban [3] keeps a close eye on your
38%
Connecting dissimilar IPsec implementations
30.11.2025
Home »  Archive  »  2011  »  Issue 4: Secure...  » 
© Yuri Arcurs, 123RF.com
set remote-gw 192.168.1.31 06 set psksecret ENC kB+sdP4e109vAROdm9TRn9YIzA47T3JHPK4xVOzYu/8nc3wmqBknMZBzfHU7VRuWBF2gncDuHY1ubeCk9DU3zasHi61Izu0m6cg1cdERjgNmKKcO 07 set keepalive 600 08 next

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