I was changing some settings on my dedi box to do with adding more descriptors and then rebooted. Since then I cannot log into SSH with root details (or anyone else). As soon as I log in, the putty screen just closes. When I
ssh firstname.lastname@example.org from my other VPS, it logs in then says Connection Closed.
I am really stuck now as I have lost shell access to my server and only have plesk ..
EDIT: Verbose output from ssh -v
debug1: Reading configuration data /etc/ssh/ssh_config debug1: Applying options for * debug1: Connecting to domain [IP] port 22. debug1: Connection established. debug1: permanently_set_uid: 0/0 debug1: identity file /root/.ssh/identity type -1 debug1: identity file /root/.ssh/id_rsa type -1 debug1: identity file /root/.ssh/id_dsa type 2 debug1: loaded 3 keys debug1: Remote protocol version 2.0, remote software version OpenSSH_4.3 debug1: match: OpenSSH_4.3 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_4.3 debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: server->client aes128-ctr hmac-md5 none debug1: kex: client->server aes128-ctr hmac-md5 none debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP debug1: SSH2_MSG_KEX_DH_GEX_INIT sent debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY debug1: Host 'domain' is known and matches the RSA host key. debug1: Found key in /root/.ssh/known_hosts:1 debug1: ssh_rsa_verify: signature correct debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: SSH2_MSG_SERVICE_REQUEST sent debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey,gssapi-with-mic,password debug1: Next authentication method: gssapi-with-mic debug1: Unspecified GSS failure. Minor code may provide more information Unknown code krb5 195 debug1: Unspecified GSS failure. Minor code may provide more information Unknown code krb5 195 debug1: Unspecified GSS failure. Minor code may provide more information Unknown code krb5 195 debug1: Next authentication method: publickey debug1: Trying private key: /root/.ssh/identity debug1: Trying private key: /root/.ssh/id_rsa debug1: Offering public key: /root/.ssh/id_dsa debug1: Authentications that can continue: publickey,gssapi-with-mic,password debug1: Next authentication method: password root@domain's password: debug1: Authentication succeeded (password). debug1: channel 0: new [client-session] debug1: Entering interactive session. debug1: Sending environment. Last login: Tue Jun 14 00:05:36 2011 from 02dc9b0a.bb.sky.com debug1: client_input_channel_req: channel 0 rtype exit-status reply 0 debug1: channel 0: free: client-session, nchannels 1 Connection to domain closed. debug1: Transferred: stdin 0, stdout 0, stderr 35 bytes in 0.3 seconds debug1: Bytes per second: stdin 0.0, stdout 0.0, stderr 106.5 debug1: Exit status 254