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#1 2011-07-13 02:07:33
- freezway
- Member
- Registered: 2010-06-16
- Posts: 15
ISP blocking all ports (and I want to use ssh)
A while ago my ISP started blocking all the ports, including 22. Is there a way to get around this? I can't even ping my IP. NMap tells me every single port is "filtered". is there a way to get around this?
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#2 2011-07-13 04:11:41
- ewaller
- Administrator
- From: Pasadena, CA
- Registered: 2009-07-13
- Posts: 19,804
Re: ISP blocking all ports (and I want to use ssh)
Plan A : Change ISPs -- now.
Plan B: Is port 443 open? It is normally used for https, but nothing keeps you from running a SSH server on it.
Plan C: Set up a system whereby you send yourself an email that will trigger your system to open a reverse channel to an address contained in the email. You will need to create a script that watches incoming email for a trigger phrase, extract the address information, and open a ssh reverse channel. Google SSH reverse tunnel and see if anything makes sense.
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#3 2011-07-13 04:21:39
- lifeafter2am
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- From: 127.0.0.1
- Registered: 2009-06-10
- Posts: 1,332
Re: ISP blocking all ports (and I want to use ssh)
Plan B: Is port 443 open? It is normally used for https, but nothing keeps you from running a SSH server on it.
This is usually how I get around very restrictive filters / port blocking.
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#4 2011-07-13 06:23:50
- tomk
- Forum Fellow
- From: Ireland
- Registered: 2004-07-21
- Posts: 9,839
Re: ISP blocking all ports (and I want to use ssh)
You canalso tunnel ssh through http - that's assuming they 've left port 80 open...
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#5 2011-07-13 09:03:33
- fukawi2
- Ex-Administratorino
- From: .vic.au
- Registered: 2007-09-28
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Re: ISP blocking all ports (and I want to use ssh)
Plan B: Is port 443 open? It is normally used for https, but nothing keeps you from running a SSH server on it.
Probably not... A lot of ISP's do it as a security measure to protect "Ma and Pa Kettle" who just want teh yootubes and email the kids.... If that is the case, then the ISP should have an option to disable it, either on the admin panel or by calling them (my ISP lets me disable it via the admin panel).
On the other hand... If they're just doing it to be a pain in the arse....
Plan A : Change ISPs -- now.
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#6 2011-07-13 13:56:31
- lifeafter2am
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- From: 127.0.0.1
- Registered: 2009-06-10
- Posts: 1,332
Re: ISP blocking all ports (and I want to use ssh)
If changing ISPs is out of the question, you could always sign up for a private VPN. The one I use has all ports open, and provides a static IP address.
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