johnyj (OP)
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Beyond Imagination
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February 12, 2013, 10:44:41 PM |
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If I block port 8333, will it still work?
Or simply, can I use port 80 in a node?
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Make sure you back up your wallet regularly! Unlike a bank account, nobody can help you if you lose access to your BTC.
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Schleicher
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February 13, 2013, 01:42:02 AM |
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It depends on how restrictive the firewall is. Usually it doesn't matter what port your client uses. If port 80 is not being blocked then you only need someone running a client on port 80 to connect to it.
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johnyj (OP)
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Beyond Imagination
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February 13, 2013, 03:09:16 AM |
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It depends on how restrictive the firewall is. Usually it doesn't matter what port your client uses. If port 80 is not being blocked then you only need someone running a client on port 80 to connect to it.
If a client is running on port 80, will it be able to connect to rest of the network?
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Schleicher
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February 13, 2013, 05:16:34 AM |
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If a client is running on port 80, will it be able to connect to rest of the network?
It's the other way around. It will only connect when someone else has a client running on port 80. That's assuming the firewall is not being totally paranoid.
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Buffer Overflow
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February 20, 2013, 07:47:18 PM |
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If I block port 8333, will it still work?
Depends. Are you blocking the incoming or outgoing packets?
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tpantlik
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February 20, 2013, 07:54:59 PM |
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You can use tor to bypass firewall blocking bitcoin port. And even if it is actively trying to block tor you can still try to connect with tor bridge.
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Gods sent us a powerful tool - cryptography - to fight with those who are trying to exploit us. USE IT!!
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Buffer Overflow
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February 20, 2013, 10:59:31 PM |
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If a client is running on port 80, will it be able to connect to rest of the network?
Ports 0 - 1023 are special ports that would require your Bitcoin client to be running at elevated root privilege. (Bad idea.) Bitcoin won't bind to port 80 as a normal user.
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johnyj (OP)
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Beyond Imagination
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February 21, 2013, 12:35:10 AM |
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Thanks, just want to evaluate the risk of a block at major back-bone switch. Google and youtube are totally blocked in main land china, so I suppose it is not very difficult for government to do such a block if they decided to do so
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gmaxwell
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February 21, 2013, 01:29:13 AM |
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Bitcoin isn't an anti-censorship system— it's trivial to block.
If you're concerned about bitcoin being blocked setup and maintain a Bitcoin node on a tor hidden service (see doc/Tor.txt), we could use some more of them.
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celkaris
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February 21, 2013, 09:32:21 AM |
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if your problem is about censorship, you oculd have a look at "BoF" project, haven't tried it, but it may help. Bof = "Bitcoin over Freenet" ; you probably already heard about Freenet [ http://freenetproject.org/ ] if you live in china & are concerned by censorship. Can't link to USK here, but you'll find the link from most index freesites.
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