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Questions tagged [port]

The tag has no usage guidance.

0
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1answer
17 views

json-rpc and p2p port protocol type

What type of port protocol do json-rpc and p2p use? does it use TCP or UDP? If possible, can you config or reprogram the open-source and compile the source to use TCP only if it also uses UDP?
0
votes
2answers
185 views

How to change RPC port for bitcoind? (rpcport=xxx in bitcoin.conf doesn't work)

I'm running a testnet bitcoind node and I have been doing RPC calls on the default port 18332. I have added this line to ~/.bitcoin/bitcoin.conf: rpcport=19832 And restarted the bitcoind service. I ...
0
votes
1answer
183 views

Run bitcoin and Omni on same machine

I'm currently running a bitcoin full node and would like to run the omni full node as well separately. I want to have 2 different datadir and I guess I need the omni full node to use a different port (...
0
votes
1answer
1k views

Port 8333 and Issues to have a connection

So, I have a website, and that website is going to use Bitcoins. Right now, I'm trying to connect the bitcoin core with the website. But I have a lot of issues with port 8333: This is my error: http:...
3
votes
1answer
4k views

What is the benefit of opening port 8333 to a client?

I am running a bitcoin core (v0.15.01) full node according to https://bitcoin.org/en/full-node. They say "To support the Bitcoin network, you also need to allow incoming connections." I ...
2
votes
1answer
181 views

How can I get Electrum running under Debian with a restrictive firewall?

So I'm running Debian 9.1 with KDE and am using iptables to disallow all outgoing and incoming traffic by default except that which I explicitly permit. I keep on being disconnected with a red dot in ...
4
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4answers
4k views

Allowing Incoming Connection on Bitcoin Core

Good Evening, I recently installed Bitcoin Core v0.12.1 on my home server (running Windows 7) and wanted to allow it to accept incoming connections and used the guide found here: https://bitcoin.org/...
1
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0answers
97 views

running a full node on a network restricted to outbound connections on port 80 via proxy

Wanted to know if there is any way i can run a full node on a machine in a restricted LAN that can not exit outbound packets except to a specific proxy on port 80 ? (an answer requiring to use an ...
5
votes
1answer
510 views

How do I still have connections without forwarding port 8333?

First of all, this isn't a problem I am having, I'm just curious how this works. If you run your node with port 8333 open, you'll receive a large amount of connections after being online for a while....
1
vote
1answer
293 views

Why does ONLY some connections have 'addrlocal' in getpeerinfo output

I connected two laptops A and B to bitcoin testnet. I then manually connected B to A using addnode of bitcoin-client. Snippet of getpeerinfo from B: { "id": 1, "addr": "172.22.94.40:18333"...
1
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0answers
82 views

Table of coin parameters

What are the P2P network magic bytes P2PKH version byte P2SH version byte Private key version byte P2P Port RPC Port Atomic units per coin (100,000,000 for bitcoin) for Bitcoin, Bitcoin testnet, ...
6
votes
1answer
1k views

How to open the port 8332 on EC2 instance?

I'd like to access the EC2 instance that installed bitcoin mainnet node. I've found out that I need to open the port 8332 of instance from the question, but I have not idea how to do it. I tried to ...
8
votes
1answer
10k views

How do I configure Bitcoin Core to connect always to a particular node?

By reading https://bitcoin.org/en/full-node I've decided that I want to run a FULL node (let's call it 'X'), to contribute to the P2P network. So, I'll leave its ports open, or have a DMZ zone with a ...
3
votes
1answer
1k views

How to set up a private bitcoin network with mining on a single machine?

I created a testnet for mining using several ports in a single machine. However I see that the source codes [CAddrInfo, CAddr] are based on IP and not IP||port. Is there an easy change to make it do ...
1
vote
1answer
598 views

How to trigger port for Bitcoin client (e.g. 8333)

According to this it's possible to have incoming connections to Bitcoin client by forwarding port 8333 on the router. I was wondering if there is some specific port range Bitcoin Core uses for making ...
1
vote
1answer
1k views

How to Enable Port Forwarding for Litecoin Mining?

I've just started Litecoin mining, and I've realized that my blockchain takes eons to download, even though its only less than 4GB. I've read several other posts on the same problem, but none of them ...
4
votes
1answer
1k views

Running multiple BTC nodes on separate VMs on the same host machine?

I've got a server running 24/7 with lots of resources left. I want to run a full Bitcoin node, but actually, I thought of running a few virtual machines on it (using virtualbox) and running a full ...
10
votes
1answer
1k views

Has anyone ported the Bitcoin software to “pure” Clojure?

Has there been any attempt to rewrite Bitcoin in Clojure? I know about BitcoinJ, so I imagine that should be easy to port. But what about a "pure" version? Without calling Java directly? Easily ...
8
votes
3answers
1k views

Has anyone ported the Bitcoin software to plain C or Objective C?

I'm not a big proponent of either C++ or Boost. Has there been any attempt to rewrite Bitcoin in plain ANSI C, or maybe Objective C? Thanks.
2
votes
1answer
290 views

What ways does a miner differ from a wallet?

I'm trying to understand how transactions are broadcast, the time is synchronized, and the chain extended. I have a wallet on OSX that required me to fully synchronize with the network. Contrasting ...
4
votes
2answers
794 views

What if ISP's block port 8332?

Hypothetically, if it were a well coordinated NSA-type shut down and ALL ISP's suddenly blocked port 8332 (major ones anyway), how would the Bitcoin system immediately handle it?
5
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2answers
5k views

Port forwarding for pooled mining?

It does not seem to be necessary but does it help to use port forwarding for pooled mining? I mean forwarding the same port as the pool port on the incoming side of my router to the rig.