Hi guys! Sorry if this is a n00b question - I've only just converted from PC's with my first, shiny, brand-new MacBook, and I love it. Anyway, onto the question. I used to use my old laptop to monitor our home network. We have a constant problem with neighbours and suchlike leeching our wireless connection. I need to know how to do the following things that I used to be able to do on Command Prompt in Windows; 1./ I need to know the command to list all the users currently connected to my network, along with their I.P.'s 2./ I'd love to know how to find I.P.'s of websites. On CP it was like 'tracert myspace.com' or whatever. 3./ I need to know how to send a pop-up message to other network users. Is it possible to do it to Windows-based machines? I know in Command Prompt, it was 'net send', then the username, then the message. 4./ Anything else of use - preferably things Macs can do that PC's can't! Network related stuff is even more useful! Thanks in advance, and sorry if it's a completely n00b question. L4byr1nth.