I am currently using this module to create an application that connects to the dstHost shown below.
flowchart LR
A["localHost"] -->|Tunneling| B["host"]
B -->|Tunneling| C["dstHost"]
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I wanted to write test code to simulate communication at the dstHost, so I wrote the following code:
const { createTunnel } = require ( 'tunnel-ssh' ) ;
const { Server } = require ( 'ssh2' ) ;
const { readFileSync } = require ( 'fs' ) ;
const net = require ( "net" ) ;
require ( "dotenv" ) . config ( ) ;
const tunnelOptions = {
autoClose :false
} ;
const serverOptions = {
host : process . env . SRC_HOST , port : process . env . SRC_PORT
} ;
const sshOptions = {
host : process . env . HOST , port : process . env . PORT ,
username : process . env . UNAME , password : process . env . PASSWORD
}
const forwardOptions = {
srcAddr : process . env . HOST , srcPort : process . env . PORT ,
dstAddr : process . env . TO_HOST , dstPort : process . env . TO_PORT
}
const f = async ( ) => {
const proxy = net . createServer ( ( client ) => {
const serverConnection = net . createConnection ( { host : forwardOptions . dstAddr , port : forwardOptions . dstPort } ) ;
client . pipe ( serverConnection ) ;
} ) ;
const server = new Server ( { hostKeys : [ readFileSync ( './id_rsa' ) ] } , ( client ) => {
console . log ( 'Client connected!' ) ;
client . on ( 'authentication' , ( ctx ) => {
// authentication code
} ) . on ( 'ready' , ( ) => {
// authenticated code
} ) . on ( 'close' , ( ) => {
// closing code
} ) ;
} ) ;
proxy . listen ( { host : sshOptions . host , port : sshOptions . port } ) ;
server . listen ( { host : forwardOptions . dstAddr , port : forwardOptions . dstPort } ) ;
const result = await createTunnel ( tunnelOptions , serverOptions , sshOptions , forwardOptions ) ;
console . log ( "Finished!" ) ;
result [ 0 ] . close ( ) ;
}
f ( ) ; However, when I execute the above code, the log "Finished" is not displayed and the error "Error: Timed out while waiting for handshake" occurs.
How can I emulate SSH communication without causing errors?
tunnel-ssh：4.0.5
I am currently using this module to create an application that connects to the dstHost shown below.
flowchart LR A["localHost"] -->|Tunneling| B["host"] B -->|Tunneling| C["dstHost"]I wanted to write test code to simulate communication at the dstHost, so I wrote the following code:
However, when I execute the above code, the log "Finished" is not displayed and the error "Error: Timed out while waiting for handshake" occurs.
How can I emulate SSH communication without causing errors?
tunnel-ssh：4.0.5
node: v19.6.0