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Is there a way to know which traffic is blocked? For example, SSH, Ping, HTTP etc... so I'll see if I can access anything from all this? Maybe I'll find a way to get some internet... I know that ping is allowed.. but maybe there is something else.... Any way of testing which traffic is not blocked?
Thanks.
9 replies to this topic
#1
Posted 24 April 2008 - 07:09 AM
TcM
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#2
Posted 24 April 2008 - 07:25 AM
WingedPanther
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A spammer's worst nightmare
I've tracked down some tools that can check for open ports, etc, but their use is likely to get you in trouble if caught.
#3
Posted 24 April 2008 - 08:35 AM
TcM
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Can you send links or upload please?
I will net get in trouble at school, because I will be using my laptop... they can't deny me from doing what I want on my own laptop. Besides that I will not hack their system or anything.
I will net get in trouble at school, because I will be using my laptop... they can't deny me from doing what I want on my own laptop. Besides that I will not hack their system or anything.
#4
Guest_Jordan_*
Posted 24 April 2008 - 05:12 PM
Guest_Jordan_*
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You can find many port scanner on the internet. There are many free ones for Linux. I don't think that a port scanner will help you in this situation though. A port scanner finds open ports on a remote computer. If those are blocked by your school firewall it will not find those as open ports. If they are not blocked by your school firewall they have to be open on the remote computer in order for them to be found.
I suggest you open cmd prompt in windows or a terminal in Linux. Telnet to a port that you know is open. For instance, you want to check port 22 (SSH):
1) cmd/terminal
2) telnet codecall.net 22
If you connect that port is not blocked by your firewall. You know that port 22 is open on CodeCall.net because this server supports SSH.
I suggest you open cmd prompt in windows or a terminal in Linux. Telnet to a port that you know is open. For instance, you want to check port 22 (SSH):
1) cmd/terminal
2) telnet codecall.net 22
If you connect that port is not blocked by your firewall. You know that port 22 is open on CodeCall.net because this server supports SSH.
#5
Posted 25 April 2008 - 06:37 AM
TcM
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Yeah.. I tried SSH. But It seems to be blocked.
Today I had 3 lessons in the other building.. so I had internet :) and I noticed something... I can't access hotmail via HTTP (Bouncer comes up) but I can telnet to it. can I set FF to browse through Telnet? (By using putty and forward the ports or something?) So telnet doesn't seem to have any restrictions like MSN and hotmail blocking.. but HTTP has.
Today I had 3 lessons in the other building.. so I had internet :) and I noticed something... I can't access hotmail via HTTP (Bouncer comes up) but I can telnet to it. can I set FF to browse through Telnet? (By using putty and forward the ports or something?) So telnet doesn't seem to have any restrictions like MSN and hotmail blocking.. but HTTP has.
#6
Guest_Jordan_*
Posted 25 April 2008 - 06:48 AM
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You can use SSH to port-forward. In other words, you setup your SSH client (putty in this case) to create a socks5 proxy socket which forwards all of your requests through the SSH tunnel.
#7
Posted 25 April 2008 - 07:33 AM
TkTech
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The Crazy One
They block HTTP traffic....but don't?
If they block the port you should get nadda.
If they block a type of traffic by looking for signatures, you get nadda.
How exactly are they restricting you, if you can access it by using anything other then that browser?
If they block the port you should get nadda.
If they block a type of traffic by looking for signatures, you get nadda.
How exactly are they restricting you, if you can access it by using anything other then that browser?
#8
Posted 25 April 2008 - 07:38 AM
TcM
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no no... you are not understanding.. They block HTTP (bouncer comes up) in one building, but can access it in the other building (every building has a different router, but it's the same network)
@jordan:
What should I input as Proxy and port?
@jordan:
What should I input as Proxy and port?
Edited by TcM, 25 April 2008 - 07:40 AM.
#9
Posted 25 April 2008 - 08:49 AM
WingedPanther
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A spammer's worst nightmare
I found several tools when we discovered some holes in my school's network (when I taught H.S.). I don't recall what they were off hand, but I know I found network mappers, port scanners, etc.
#10
Posted 25 April 2008 - 09:32 AM
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WingedPanther said:
I found several tools when we discovered some holes in my school's network (when I taught H.S.). I don't recall what they were off hand, but I know I found network mappers, port scanners, etc.
I bet those kids were quite smart :)
