The following is a collection of useful tools I’ve used I’m the past and have found useful. Not all tools will be right for all organization and some have a pretty steep learning curve, but all can bee very useful in managing, designing, or troubleshooting computer networks.
For monitoring system status I’ve used both Nagios and WhatsUp Gold.
Nagios is a very flexible and powerful monitoring and alerting system. Is for you if you have a little more time and a lot less money. It is open source and the core system is free to download and use. It does have a learning curve though so you may have to put some time into it. Nagios does have a product for purchase that improves on the interface and management, making it more user friendly.
WhatsUp Gold a product you can purchase to do system status monitoring and alerting. I’ve found it to be less flexible then Nagios, but it is a lot more user friendly and plug-n-play. If you have some money to spend on a product for monitoring it is worth a look.
- Wireshark packet capturing and analysis tool
- kismet, netstumbler, istumbler wireless scanning tools
Cable testing and locating tools
- CDP and LLDP protocols