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19%
Give your servers the once over with Nmap
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© ragsac, 123RF.com
, some operating systems insist on opening up ports by default on installation. Along with a handful of other tools the Network Mapper (Nmap) [1] utility is commonly used by both system administrators
19%
Enterprise communication with IRC
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© anyka, 123RF.com
of successors and forks: Each of the large public IRC networks has its own fork, and various forks exist in the form of private projects. The rising star among IRC servers in recent years has been Ratbox IRCd
19%
Using a tablet as a portable management console
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Peter Bernik, 123RF.com
selecting a tablet, check out available system administrator-oriented client applications, such as VPN, SSH, RDP, VNC, VMware View, Citrix Receiver, DaaS, Database tools, and network testing tools
19%
Bottom: The new top
07.10.2025
Home »  Archive  »  2024  »  Issue 80: Threa...  » 
Lead Image © Lucy Baldwin, 123RF.com
options, what makes btm special? It provides immediate and time series monitoring of CPU, memory, network activity, processes, and disk usage like other tools, but it does it with characteristic flair
19%
Open source data center virtualization with OpenNebula
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
a network. The requirements in terms of dynamic change and availability, however, soon reach their limits with this kind of solution. Besides the rather abstract IaaS services, which you can purchase
19%
Operating system virtualization with OpenVZ
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
© sculpies, Fotolia.com
-online target IP VEID Target IP is the network address of the VE into which you want to migrate to the VE with the ID of VEID. Of course, the vzmigrate tool supports a plethora of different options (e
19%
Storage system with OpenSolaris and Comstar
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Aleksandr Fomenkov, 123RF.com
a viable network-attached storage system. Sun engineers knew the implementation of a modern framework that served up block devices throughout the network was the next step. The resulting product was Comstar
19%
Our Technological Enlightenment
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© lightwise, 123RF.com
, and computer networks were becoming commonplace in businesses. Still, we were in the dark and were disconnected. The mid-1990s saw a boom in the number of computer users with the new, publicly accessible
19%
Server validation with Goss
07.10.2025
Home »  Archive  »  2025  »  Issue 89: Autom...  » 
Lead Image © Ewa Walicka, fotolia.com
a git push over SSH. Not all Linux statuses can be queried with the Goss onboard tools. For example, the tool detects whether the MariaDB process is running and listening on a specific network port
19%
Monitoring server hardware with the Nagios IPMI plugin
30.11.2025
Home »  Archive  »  2011  »  Issue 4: Secure...  » 
© Vladimir Nenov, 123RF.com
others, IPMI is typically standard equipment [1]. The heart of the IPMI specification is the Baseboard Management Controller (BMC), which uses the network or a local system bus to talk to userspace

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