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Old 04-11-2017, 03:52 PM   #16
Ulysses_
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A VPS would be used for the one side of the tunnel, what's to stop me from binding to ports 80 and 81 in a VPS? Also tunneling is not what attracts people to ultrasurf, but the fact that school technicians cannot easily block it. And of course that it is computer-newbie friendly and free of charge.
 
Old 04-11-2017, 07:36 PM   #17
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Clearly, it seems to me that you are destined to grind your head against this thing until you finally decide that it is in your best interests to arm yourself with actual technical knowledge, instead of merely contenting yourself with platitudes like this:
Quote:
lso tunneling is not what attracts people to ultrasurf, but the fact that school technicians cannot easily block it. And of course that it is computer-newbie friendly and free of charge.


Sorry to have bothered you. Message-back when you are ready to discuss these matters further. (And, do say 'hello' from me to these "school technicians" ...)

Last edited by sundialsvcs; 04-11-2017 at 07:38 PM.
 
Old 04-12-2017, 03:30 AM   #18
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Glad you realise school technicians were not literal and I hope you also realise crippled access to the internet is a very common issue and workarounds are a much bigger thing to master than just use UDP. Even you have alluded that UDP is not the only way to set up OpenVPN, if you know how to do it say it, if not let someone else say it.
 
Old 04-12-2017, 07:56 AM   #19
sundialsvcs
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Originally Posted by Ulysses_ View Post
Glad you realise school technicians were not literal and I hope you also realise crippled access to the internet is a very common issue and workarounds are a much bigger thing to master than just use UDP. Even you have alluded that UDP is not the only way to set up OpenVPN, if you know how to do it say it, if not let someone else say it.
The OpenVPN documentation clearly states that you can specify either UDP or TCP/IP as the high-level protocol to be used. The problem will be that, if you are restricted to two TCP/IP ports, in all likelihood both of them are taken for other purposes. If your access is "so crippled," you probably can't use a secure solution of any kind. You need to somehow negotiate to have other ports opened to you.
 
Old 04-12-2017, 08:20 AM   #20
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How many ports do you need?
 
Old 04-12-2017, 08:53 AM   #21
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Originally Posted by Ulysses_ View Post
How many ports do you need?
You need for the UDP traffic to go through. Or, a TCP/IP port that OpenVPN alone can use. If you're limited to only two TCP/IP ports and both of them are taken for other purposes, there's simply no way for the traffic to get through. They've got to communicate somehow.
 
Old 04-12-2017, 09:25 AM   #22
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So just one TCP port is enough then, losing a little performance. Great. If ports 80 and 81 were taken by ultrasurf for other purposes you would not be able to see web sites through ultrasurf. So OpenVPN through ultrasurf is a solution, as long as you can choose any ports you like in OpenVPN's config.
 
Old 04-12-2017, 03:09 PM   #23
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If UltraSurf is capable of tunneling other ports and protocols through its link, acting effectively as a form of router, then you should be able to convey the necessary traffic through it. (I don't know the product, to comment further.) The fundamental requirement is that the VPN perceives that it can successfully send and receive traffic, using its chosen port-number and protocol-type, and somehow the traffic gets through. It doesn't have to know nor care how the trick is done. If UltraSurf can do the trick, that's what matters.

Last edited by sundialsvcs; 04-12-2017 at 03:10 PM.
 
  


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