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  • [x] Creation time: Last year
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  • Article (Print) (272)
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18%
Strategies for routing voice calls around a firewall
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
gnohz, 123RF.com
easy to develop your own applications for SIP. However, if you use the SIP protocol for Voice over IP calls, you will discover some complications reaching an address on a private network that resides
18%
Setting up Exchange Server 2010 with SP1
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© Francois Lariviere, 123RF.com
Before you can install Exchange Server 2010, whether in a test environment or on a production network, you first need to fulfill a couple of requirements. The server needs to run Windows Server 2008
18%
Zulip, Mattermost, and Rocket.Chat
26.03.2025
Home »  Archive  »  2025  »  Issue 86: Data...  » 
Lead Image © rll, fotolia.com
? Unlike earlier platforms such as the Internet Relay Chat (IRC) protocol or Network News Transfer Protocol (NNTP), modern chat groupware software no longer relies on proprietary binary protocols. All
18%
Enforce secure workstation configurations
28.07.2025
Home »  Archive  »  2025  »  Issue 88: 5 Net...  » 
Photo by Barnabas Piper on Unsplash
infiltrates the local network. A vulnerability on a public-facing Windows server can allow an attacker to gain initial access, and with the use of harvested credentials and remote administration tools, they can
18%
Bare metal lifecycle management with six open source tools
07.10.2025
Home »  Archive  »  2025  »  Issue 89: Autom...  » 
Photo by Beth Macdonald on Unsplash
Configuration Protocol (DHCP), and Trivial File Transfer Protocol (TFTP) – assuming the network configuration allows you to do so. Organizations that deal with large numbers of servers instead need a largely
18%
OpenVPN with e-tokens in large-scale environments
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© sTan, fotolia.com
VPN. The free SSL virtual private network (VPN) joined the mainstream with release 2.1, and it is useful for large-scale setups. Aladdin [2] dominates the market for USB stick-based cryptographic access control
18%
Building more efficient database applications with a graph database
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
© Jakub Krechowicz, 123RF.com
Peter knows Paula, a freeway links Cologne with Dortmund, and a network cable leads from Marvin to Zaphod. These relationships can be recorded in a visually intuitive way (Figure 1), and the results
18%
A GUI for Warewulf 4
06.05.2025
Home »  Articles  » 
.168.64.1/32 network. You could even add individual servers. The next step is to authenticate for access to the API, which occurs in the Warewulf configuration file /etc/warewulf/auth.conf , and define users who can
18%
Traffic analysis with mitmproxy
26.01.2025
Home »  Archive  »  2025  »  Issue 85: Monit...  » 
Lead Image © r lakhesis, 123RF.com
When most people hear the term "proxy," they probably think of legacy proxy servers that act as gateways connecting local networks to the global network or as go-betweens protecting local clients against
18%
Server virtualization with Citrix XenServer
30.11.2025
Home »  Archive  »  2010  »  Issue 2: Backup...  » 
Goss Vitalij, Fotolia
to restore. Test Setup Installing XenServer on a server system is typically fast and painless, but you'll need to consider network and disk capacities and assignments because these might be difficult

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