CRYPTOCURRENCY
Ethereum: rpc json outside localhost
Here is an article on the topic that faces the Bitcoin Core Json-RPC housing:
Ethereum: RPC JSON OUT OF LOCALHOS, BITCOIN Core Configuration Problems
When Bitcoin Core (BTC) is executed as a server, it is not uncommon to find problems to access the JSON-RPC final points out of the local machine. In this article, we will explore why this problem could be experiencing and providing some solutions.
Why is it happening?
The problem lies in how Bitcoin Core manages RPC connections. By default, listen to localhost: 8333 (O’127.0.0.1: 8333for IPV4). However, when trying to access to the end point JSON-RPC outside this local connection, Bitcoin Core tries to connect toip_address: 8333, where ip_addressit is a randomly generated IP IP address assigned by the system.
Bitcoin.conf Configuration
Your Bitcoin.conf file looks like this:
INI
Testnet = 1
server = 1
Daemon = 1
Listen = 1
Note that there is no option to specify an alternative IP address or port for JSON-RPC connections. This is a default configuration, and only applies to RPC connections.
Why doesn't it work?
When he tries to access the final point JSON-RPC out oflocalhost, Bitcoin Core uses his internal IP address (or 0.0.0.0 on IPV4) as the destination host and the port number. This is because the default configuration does not explicitly allow alternative hosts or ports.
Solutions:
To overcome this problem, you have some options:
- Useip_address: 8333
instead of Sol8333:
You can modify your Bitcoin.conf file to use an alternative IP address as specified in the end point JSON-RPC:
INI
Testnet = 1
server = 1
Daemon = 1
Listen = 0.0.0.0
Listen to all available network interfaces
RPCIP = "192.168.1.100"
Specify a different IP address
RPCPORT = 8333
Specify the port number
rest of your configuration ...
In this example, we are using0.0.0.0to listen to all available network interfaces and then specifying an alternative IP address ( 192.168.1.100) for the RPC connection.
- Use a DNS -based configuration:
Alternatively, you can configure Bitcoin Core to use a DNS -based approach, which allows your machine to resolve to your real IP address:
INI
Testnet = 1
server = 1
Daemon = 1
Listen = 0.0.0.0
DNS-ADDR = "Example.com"
In this case, you must ensure that theExample.comdns is resolved correctly.
- Use a different JSON-RPC port:
If you are not worried about listening to the RPC connections and you want to use a specific port number for the end point JSON-RPC (for example, 8545), you can specify it in your Bitcoin.conf file :conf:
INI
Testnet = 1
server = 1
Daemon = 1
Listen = 0.0.0.0
RPCIP = "192.168.1.100"
RPCPORT = 8545
`
Keep in mind that this will require changes in the JSON-RPC ending configuration, which may not be necessary if you are using a different port number.
Conclusion:
To overcome the problem of accessing the final points of Ethereum RPC out of localh with Bitcoin Core, consider one or more of the previous solutions. When adjusting your Bitcoin.conf file or explore alternative approaches, you must be able to solve this problem and continue executing your JSON-RPC server correctly.
Perpetual Futures Open Interest
