Eu geralmente me conecto a uma máquina remota através de um firewall com:
ssh -xv [email protected]
E então:
ssh -xv [email protected]
Observe que remote é na verdade um endereço IP . Eu vi isso question e tentei escrever meu arquivo ~/.ssh/config como:
Host ras
Hostname ras.cse.ust.hk
User farshidhss
Host farshid
ProxyCommand ssh -q ras nc -q0 10.89.100.72 22
E, em seguida, tentei ssh -xv luca@farshid , mas ele fica preso na última linha de:
luca@jarvis:~$ ssh -xv luca@farshid
OpenSSH_7.2p2 Ubuntu-4ubuntu2.1, OpenSSL 1.0.2g 1 Mar 2016
debug1: Reading configuration data /home/luca/.ssh/config
debug1: /home/luca/.ssh/config line 5: Applying options for farshid
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug1: Executing proxy command: exec ssh -q ras nc -q0 10.89.100.72 22
debug1: permanently_drop_suid: 1000
debug1: identity file /home/luca/.ssh/id_rsa type 1
debug1: key_load_public: No such file or directory
debug1: identity file /home/luca/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/luca/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/luca/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/luca/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/luca/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/luca/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/luca/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.2p2 Ubuntu-4ubuntu2.1
Verifiquei se as portas estão corretas e tentei também ProxyCommand ssh -W 10.89.100.72:22 farshid , mas sem sucesso, e o netcat está instalado em ras.cse.ust.hk ( which nc returned /bin/nc ).
Atualizado em ~ / ssh / config:
Host ras
Hostname ras.cse.ust.hk
User farshidhss
Host farshid
User luca
ProxyCommand ssh -o 'ForwardAgent yes' [email protected] 'ssh-add && nc %h %p'
Tentou se conectar com ssh -xv farshid , mas com a mesma saída de antes e ficou preso