From thehorse13: If you have never scanned using the command line on the nessus server and you think that a quick tutorial would be helpful, just let me know and I will right a quickstart tut for command line Nessus syntax.
Would you consider writing a quickstart for the command line for Nessus please? I saw you have a tut for the installation (http://www.antionline.com/showthread...hreadid=247255) and I was looking for a quick guide on how to use it best. Thanks in advance for considering it.

Also - being new to network security, I was trying to find out if NESSUS or security scanners in general will work across differnent networks?

I've been assigned to do some security scanning on a recently acquired company, but they have their own network and firewall. I was able to use SuperScan and get some results, but I need to tell them if they have any vulnerabilities, but I am thinking that NESSUS is not made to scan in front of firewalls -- and I don't want to knock down any servers in the process.