ssh 터널링에서의 이상한 출력 : 출력 실패; 연결 실패 : 연결 시간이 초과되었습니다.

ssh user@xx.yy.zz.41 -p 1234 -D 9898터널링 명령을 사용 하고 firefox socks5 ip를 127.0.0.1로 설정하고 포트를 9898로 설정했습니다. 성공적으로 작동하지만 터미널에서 출력에 오류가 있습니다.

channel 39: open failed: connect failed: Connection timed out
channel 41: open failed: connect failed: Connection timed out
channel 42: open failed: connect failed: Connection timed out
channel 43: open failed: connect failed: Connection timed out
channel 44: open failed: connect failed: Connection timed out

정기적으로 발생합니다. 이게 뭐야? 이게 문제가 되나요? 어떡해?

비슷한 문제가 발생했습니다. ssh를 통해 Firefox로 터널링하는 경우 서버로드 또는 부적절한 구성으로 인해 일부 http 연결이 시간 초과 될 수 있습니다. 실제로 연결 시간이 초과되면 지정한 오류 메시지가 표시됩니다.

다음 명령으로 이러한 메시지를 억제 할 수 있습니다

ssh user@xx.yy.zz.41 -p 1234 -D 9898 -q

매뉴얼 페이지에서 ssh(1)

 -q      Quiet mode.  Causes most warning and diagnostic messages to be sup-
         pressed.

메시지를 표시하지 않으면 경고가 ssh 또는 화면 세션을 망칠 수 없습니다.

설정 GatewayPorts을 yes다시 시도하십시오.

ssh -o 'GatewayPorts yes' user@xx.yy.zz.41 -p 1234 -D 9898

man ssh_config

 DynamicForward
         Specifies that a TCP port on the local machine be forwarded over the secure channel, and the application protocol
         is then used to determine where to connect to from the remote machine.

         The argument must be [bind_address:]port.  IPv6 addresses can be specified by enclosing addresses in square
         brackets.  By default, the local port is bound in accordance with the GatewayPorts setting.  However, an explicit
         bind_address may be used to bind the connection to a specific address.  The bind_address of “localhost” indicates
         that the listening port be bound for local use only, while an empty address or ‘*’ indicates that the port should
         be available from all interfaces.

         Currently the SOCKS4 and SOCKS5 protocols are supported, and ssh(1) will act as a SOCKS server.  Multiple for‐
         wardings may be specified, and additional forwardings can be given on the command line.  Only the superuser can
         forward privileged ports.

 GatewayPorts
         Specifies whether remote hosts are allowed to connect to local forwarded ports.  By default, ssh(1) binds local
         port forwardings to the loopback address.  This prevents other remote hosts from connecting to forwarded ports.
         GatewayPorts can be used to specify that ssh should bind local port forwardings to the wildcard address, thus
         allowing remote hosts to connect to forwarded ports.  The argument must be “yes” or “no”.  The default is “no”.