Today a friend of mine wanted to know how he can check the status and or speed of multiple Network Interfaces/Ports on a device ( Switch, Router, Server, etcc ) using SNMP. Specifically he wanted to know if the Interfaces/Ports are Operationally Up or Down and also if it is Administratively. Then he also wanted to know the speed of the Interfaces/Ports that were Up or Down.

Zentyal is a Linux Small Business Server, it lets you manage all your network services through one single platform. It's a Network Gateway, as well as an Infrastructure, UTM (Unified Threat Manager), Office and Communications Server. All these features are fully integrated and easy to configure, it truly helps to save system administrators time.

Unified Threat Management (UTM) devices unify all network security elements into a single device. They often include a combination of routing, firewall, intrusion detection, content filtering, URL filtering, spam filtering, VPN, and antivirus functionalities. These devices usually cost thousands of dollars and require subscriptions.

Irrespective of the operating system, intrusion is one of the key concerns for computers connected to a network. Firewalls, as a matter of fact provide a resistance to this, if not a fool proof protection.

Connecting a network to the modern day internet can be challenging. Basic infrastructure, like routers, DHCP Servers, and DNS servers, are required to get the network online. The network must also be protected with a firewall and intrusion prevention, and the desktops need protection from viruses and spyware. Next will come a spam and phish filter to stop the continual flood of junk email.

A packet filtering firewall, designed to regulate incoming and outgoing packets from a network or an operating system, is akin to security personnel guarding the entrance to a commercial or residential property. Such a system has very little authority, unless given additional powers, in what applications inside the operating system or network are able to do.

AutoScan-Network is a network discovering and managing Tool. No Special configuration is required to scan your network.

Main Features:
•Multithreaded Scan
•Automatic network discovery
•Realtime detection of any connected equipment
•Supervision of any equipment /service (router, server, firewall, smtp, http, pop)

Cutter is tool used for disconnecting an TCP/IP connection. Some time Network administrators want to stop some specific services like ssh, chat. Cutter is a very useful utility for network administrators for blocking high bandwidth consuming services, peer-to-peer Service etc. It is a firewall administrators tool, so use in firewall / router machines.

mz (Mausezahn) is a versatile packet creation and network traffic generation tool. Using this tool You can Jam a Network.

This utility is used for Stress Testing of Networks and Firewall Testing. also for Finding weaknesses in network software or appliances.