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OpManager - Network Monitoring & Management
Network alerts are vital for maintaining your network's health, efficiency, and security, ensuring seamless daily operations. They act as an early warning system, alerting you to potential issues bef…
Network Protocols
Our previous article was an Introduction To The ISDN Protocol. This article dives a bit deeper by examining ISDN Layers, Protocols & Components. ISDN uses circuit-switching to establish a physic…
Network Cabling
Unshielded Twisted Pair (UTP) cable is most certainly by far the most popular cable around the world. UTP cable is used not only for networking but also for the traditional telephone (UTP-Cat 1). The…
Linux - Unix
What is Server Virtualization? Server virtualization is the process of apportioning a physical server into several smaller virtual servers. During server virtualization, the resources of the ser…
Domain Name System (DNS)
The previous article covered the DNS Query message formats. In the article we analysed them in great detail and showed how various options are selected by the host using the Flags/Parameters field.&n…
Cisco Firewalls
In late 2014, Cisco announced the new licensing model for the latest AnyConnect Secure Mobility client v4.x. With this new version, Cisco introduced a number of new features, but also simplified the…
ManageEngine Firewall Analyzer
In an era where cyber threats are growing in both volume and sophistication, failing to meet security compliance standards is no longer just a legal issue—it’s a business risk with potentially catast…
Windows Servers
Users working with Hyper-V Virtualization would be interested to know that Altaro is hosting a free webinar on the 25th of February 2016 at 4pm CET / 10am EST. Microsoft Cloud and Datacenter Manageme…
Cisco Switches
Errdisable is a feature that automatically disables a port on a Cisco Catalyst switch. When a port is error disabled, it is effectively shut down and no traffic is sent or received on that port…
Network Fundamentals
The first step in controlling broadcast and multicast traffic is to identify which devices are involved in a broadcast or multicast storm. The following protocols can send broadcast or multicast pack…
SASE & SD-WAN Networks
In the rush to keep pace with the many challenges facing today’s organizations, all too often networking teams end up adopting practices and processes that are, shall we say, less than perfect. You p…
Subnetting
So we have covered to some depth the subnetting topic, but there is still much to learn ! We are going to explain here the available subnet masks and analyse a Class C network, using a specific subne…

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