Fire Wall Info

alexander the greatalexander the great
Posted:
in Genius Bar edited January 2014
I'm behind a fire wall, how do I find out how restrictive it is? Right now I can't connect to my outgoing mail server or run a VNC server so that I can connect to my computer from within the network. How can I find out which ports are completely blocked? Can I tell from my IP address or network settings if I'm not going to be able to run any kind of server?



Thanks,

Alexander the Great

Comments

  • Reply 1 of 7
    1337_5l4xx0r1337_5l4xx0r Posts: 1,558member
    Well I can tell you right now you can't run any kind of server... that's kinda the point (your Uni doesn't want you sharing files using their bandwidth).



    AFA other ports, trial and error is the name of the game. Prob'ly just http (80) and FTP (22?) are the open ports.



    You'll have to find another way to obtain warez and porn.



    Jesus, I'm kidding! :P



    Incoming connections will be dropped, which means you can fetch data off the web, but no one can fetch data off you.
  • Reply 2 of 7
    1337_5l4xx0r1337_5l4xx0r Posts: 1,558member
    Of course, you could set up a Mac w/ airport so that people can connect/associate to your computer, thus creating your own LAN w/out firewalls.
  • Reply 3 of 7
    kickahakickaha Posts: 8,760member
    http://www.grc.com/



    Follow the Shields Up! links through to the tests. It's all automated, and quite good.



    *Are* you at a university, as is assumed above, or on a DSL connection with a restrictive ISP, or what?



    My ISP is wiiiiiiiiiide-open. Not a single filter in sight. Static IP. I *love* it. www.speakeasy.net. I can't recommend them highly enough.
  • Reply 4 of 7
    baumanbauman Posts: 1,248member
    The best way to check this is to turn off your personal firewall, and then go to Shields Up!, and see which ones are stealth... those are the ones that are blocked.



    Edit: Dammit... two seconds too late.
  • Reply 5 of 7
    kickahakickaha Posts: 8,760member
    Quote:

    Originally posted by bauman

    Edit: Dammit... two seconds too late.



    Silly hu-man.
  • Reply 6 of 7
    alexander the greatalexander the great Posts: 69member
    Yes, I'm at a university. I got my outgoing mail to work by talking to the right person. No computers can connect to my computer, but I'll see what I can do about that. I hope I don't get in trouble, I'm not trying to be malicious.



    Thanks for your help,

    Alexander the Great
  • Reply 7 of 7
    alexander the greatalexander the great Posts: 69member
    I was thinking that the computers in the computer lab down stairs might have public IP addresses and that I might be able to enter a similar IP address into my compuner. I just found out that almost every computer campus is behind a fire wall. Campus computers can't see dorm computers, but campus computers can see other campus computers. I'm not going to be able to do much with my dorm computer, but perhaps I can run a VNC server from my school computer so that I can have a 2GHz G5 Mac OS X computer in my CS 1100 class . And yes, I will have access to a G5 that is just for me (besides the one other person I have to share it with).



    Alexander the Great
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