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miguelfreitas / twister-core

twister core / daemon
MIT License
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Document ports requirements #22

Open eschnou opened 10 years ago

eschnou commented 10 years ago

Should any ports be available to the outside for proper operation of the daemon? Does it help the network if we open some ports? I could not find documentation about this anywhere.

miguelfreitas commented 10 years ago

Yes, default port for bitcoin-like network is 28333 (tcp). This will be requested to your upnp-aware router if you compiled miniupnp support.

Default port to DHT and torrent is 28333 + 1000 = 29333 (both udp and tcp). afair libtorrent will also try to upnp request it.

BlockTester commented 10 years ago

I noticed many more ports opened by twister, namely 4433, 4434, 1900. It would be great to document these (and the above) in the official documentation.

iShift commented 10 years ago

@BlockTester +1

toyg commented 10 years ago

@BlockTester @iShift Miguel said elsewhere that 4433-4 are likely for the RPC interface over SSL (which might not work, at this point) inherited from bitcoind, since he himself didn't use them. I have them blocked in my AWS instance and things seem to work ok anyway. Haven't seen 1900 before though...

toyg commented 10 years ago

Ok, I've figured it out. 4433 is the default LIBTORRENT ssl port, i.e. for DHT operations only. Because @miguelfreitas expects 29333 in code, I believe that other port is just sitting there doing nothing...? I don't see 1900 being used, so that's a red herring.

Wrapping up, @eschnou : if you want to document this anywhere:

BlockTester commented 10 years ago 
twisterd  19190 user   24u  IPv6 198338547      0t0  TCP *:28332 (LISTEN)
twisterd  19190 user   32u  IPv4 198338548      0t0  TCP *:29333 (LISTEN)
twisterd  19190 user   33u  IPv4 198338557      0t0  UDP *:1900 
twisterd  19190 user   34u  IPv4 198338549      0t0  TCP *:4433 (LISTEN)
twisterd  19190 user   36u  IPv6 198338551      0t0  TCP *:4434 (LISTEN)
twisterd  19190 user   37u  IPv4 198338554      0t0  UDP *:29333 
twisterd  19190 user   44u  IPv4 198342697      0t0  UDP *:60177
toyg commented 10 years ago

Weird, I don't see 1900 and 60177 here on OSX...? What's the exact command you ran ?

BlockTester commented 10 years ago

For listing?

lsof -i | fgrep twister

Running Debian Jessie/Testing 64bit.

miguelfreitas commented 10 years ago

@toyg just to confirm: 4433 is from libtorrent (not sure if used for DHT or torrent though) not bitcoin's.

Bitcoin's inherited SSL RPC support is believed to work, but untested.

toyg commented 10 years ago

@BlockTester ok, yes, I see it now:

twisterd  69732 toyg   34u  IPv4 0xe19c8867bf0e2ce9      0t0  UDP *:ssdp

SSDP sits on port 1900. http://en.wikipedia.org/wiki/Simple_Service_Discovery_Protocol i.e. it's part of the UPNP machinery. Not a port you should expose to the internet.

I don't see port 60177 but I do have a couple of random-looking UDP listening in the ephemeral range. I suspect it's more UPNP stuff.

BlockTester commented 10 years ago

Good find for the port, I honest hadn't even searched. Nevertheless it should be documented since the program does indeed open that port. Likewise for the rest of the UPNP stuff. Is there a switch somewhere to turn it off altogether? I suspect most people at this stage don't even use it (when more regular joes will join in that might be a different story).

toyg commented 10 years ago

man, I love upnp, it's a life-saver! :smile_cat:

You can disable it in twister.conf with upnp=0

iShift commented 10 years ago

old issue we can close that we have pull #121