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  • Article (Print) (218)
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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%
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%
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%
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
18%
Aggregate alerts from various monitoring systems
07.10.2025
Home »  Archive  »  2025  »  Issue 89: Autom...  » 
Lead Image © Chittima Kasa, 123RF.com
in the first line. If you do not have a public domain or are trying out the setup on your local network, remove the hash in line 3. Caddy will then use self-signed certificates. Alerta is then accessible
18%
vSphere 5 vs. XenServer 6
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Kozinia, 123RF.com
Availability VMware completely reengineered clustering services, such as VMware high availability (HA), for vSphere 5. In the past, an isolated host could cause issues, creating a network failure, interrupting
18%
Taking that Unix and Linux feeling tothe Windows desktop with MobaXterm
30.11.2025
Home »  Archive  »  2012  »  Issue 09: Windo...  » 
© Henner Damke, 123RF.com
the important remote network tools (e.g., SH, RDP, VNC, Telnet, Rlogin, FTP, SFTP, and XDMCP). X11 forwarding is supported by OpenSSH. The full MobaXterm package thus consists of the embedded X server, the tab
18%
Welcome
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
 
on that same system. One day, I decided to turn them all on at once. To my surprise, they all had their own IP addresses and their own identities. I had a virtual network running on a single hunk of hardware and

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