При попытке подключиться к любому серверу из консоли (как впрочем и через некоторые SSH-менеджеры) по SSH просто отрубает коннект после успешной проверки пароля.
Куда копать, ума не приложу.
Это команда подключения
ssh -v user@xxx.xxx.xxx.xxx
А это лог
OpenSSH_7.2p2 Ubuntu-4ubuntu2.2, OpenSSL 1.0.2g 1 Mar 2016 debug1: Reading configuration data /etc/ssh/ssh_config debug1: /etc/ssh/ssh_config line 19: Applying options for * debug1: Connecting to xxx.xxx.xxx.xxx [xxx.xxx.xxx.xxx] port 22. debug1: Connection established. debug1: key_load_public: No such file or directory debug1: identity file /home/mintuser/.ssh/id_rsa type -1 debug1: key_load_public: No such file or directory debug1: identity file /home/mintuser/.ssh/id_rsa-cert type -1 debug1: key_load_public: No such file or directory debug1: identity file /home/mintuser/.ssh/id_dsa type -1 debug1: key_load_public: No such file or directory debug1: identity file /home/mintuser/.ssh/id_dsa-cert type -1 debug1: key_load_public: No such file or directory debug1: identity file /home/mintuser/.ssh/id_ecdsa type -1 debug1: key_load_public: No such file or directory debug1: identity file /home/mintuser/.ssh/id_ecdsa-cert type -1 debug1: key_load_public: No such file or directory debug1: identity file /home/mintuser/.ssh/id_ed25519 type -1 debug1: key_load_public: No such file or directory debug1: identity file /home/mintuser/.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-4ubuntu2.2 debug1: Remote protocol version 2.0, remote software version dropbear_2016.73 debug1: no match: dropbear_2016.73 debug1: Authenticating to xxx.xxx.xxx.xxx:22 as 'user' debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: algorithm: curve25519-sha256@libssh.org debug1: kex: host key algorithm: ssh-rsa debug1: kex: server->client cipher: aes128-ctr MAC: hmac-sha2-256 compression: none debug1: kex: client->server cipher: aes128-ctr MAC: hmac-sha2-256 compression: none debug1: expecting SSH2_MSG_KEX_ECDH_REPLY debug1: Server host key: ssh-rsa SHA256:xUTavtza7rzUUfWcrMg2/1zhGfZ0I7uFW9Fd0OTuyyM debug1: Host 'xxx.xxx.xxx.xxx' is known and matches the RSA host key. debug1: Found key in /home/mintuser/.ssh/known_hosts:3 debug1: rekey after 4294967296 blocks debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: rekey after 4294967296 blocks debug1: SSH2_MSG_NEWKEYS received debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: password debug1: Next authentication method: password admin@xxx.xxx.xxx.xxx's password: debug1: Authentication succeeded (password). Authenticated to xxx.xxx.xxx.xxx ([xxx.xxx.xxx.xxx]:22). debug1: channel 0: new [client-session] debug1: Entering interactive session. debug1: pledge: network debug1: Sending environment. debug1: Sending env LC_PAPER = de_DE.UTF-8 debug1: Sending env LC_ADDRESS = de_DE.UTF-8 debug1: Sending env LC_MONETARY = de_DE.UTF-8 debug1: Sending env LC_NUMERIC = de_DE.UTF-8 debug1: Sending env LC_TELEPHONE = de_DE.UTF-8 debug1: Sending env LC_IDENTIFICATION = de_DE.UTF-8 debug1: Sending env LANG = en_US.UTF-8 debug1: Sending env LC_MEASUREMENT = de_DE.UTF-8 debug1: Sending env LC_NAME = de_DE.UTF-8 debug1: client_input_channel_req: channel 0 rtype exit-status reply 0 sshd listensocks[13] debug1: channel 0: free: client-session, nchannels 1 Connection to xxx.xxx.xxx.xxx closed. Transferred: sent 2616, received 1288 bytes, in 0.8 seconds Bytes per second: sent 3306.8, received 1628.1 debug1: Exit status 1