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18%
Monitor your nodes with collectl
30.11.2025
Home »  Archive  »  2012  »  Issue 09: Windo...  » 
© nobeastsofierce, 123RF.com
Once you have a cluster operating, typically the next thing you want to do is monitor that cluster. For example, are all the compute nodes operating correctly? Is the network and storage operating
18%
Create flexible backups with Kopia
28.07.2025
Home »  Archive  »  2025  »  Issue 88: 5 Net...  » 
Photo by Marcus Woodbridge on Unsplash
to check the Public Endpoint (all Networks) box under Network Connectivity in the Network section of the summary. If the wizard chooses a different option, the Azure firewall will block Kopia from accessing
18%
Moving HPC to the cloud
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© Zarko Cvijovic, 123RF.com
"kernel by-pass" applications (i.e., these are "on the wire" data transfers that are hard to virtualize). If high-performance networks are not available, many HPC applications run slowly and suffer from
18%
Monitoring for small and medium-sized companies compared
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
++ agents in OpenNMS. All of this makes OpenNMS a professional, convenient, and secure network management system from a single source – from small to medium-sized businesses, through to the enterprise field
18%
Installing and managing thedistributed GlusterFS filesystem
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
© Tetiana Pustovoitova, 123RF.com
add more servers or remove existing servers from the storage pool on the fly. GlusterFS works kind of like "RAID on the network," and if you look closely, you will discover many RAID concepts during
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%
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

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