Web lists-archives.com

Re: ssh




On 11/12/2018 2:49 PM, Alan Taylor wrote:
> Greetings,
> 
> I have an ssh problem - one user can use it successfully, another cannot. I have checked and rechecked permissions until I am blue in the face …
> At the moment just trying to ssh into the same machine I am on for the problem user (the other user can ssh successfully, both to the console machine and outwards to others).
> Agent problem ? The successful user was setup in the installation, the problem user was added at the command line after initial setup.
> 
> Log output follows, appears to fail after the preauth stage …
> 
> Any suggestions gratefully accepted
> 
> root@sirius/etc/ssh # journalctl | grep sshd | grep "Nov 12 13:45"
> Nov 12 13:45:17 sirius sshd[3155]: debug3: fd 4 is not O_NONBLOCK
> Nov 12 13:45:17 sirius sshd[3155]: debug1: Forked child 3241.
> Nov 12 13:45:17 sirius sshd[3155]: debug3: send_rexec_state: entering fd = 7 config len 650
> Nov 12 13:45:17 sirius sshd[3155]: debug3: ssh_msg_send: type 0
> Nov 12 13:45:17 sirius sshd[3241]: debug3: oom_adjust_restore
> Nov 12 13:45:17 sirius sshd[3155]: debug3: send_rexec_state: done
> Nov 12 13:45:17 sirius sshd[3241]: debug1: Set /proc/self/oom_score_adj to 0
> Nov 12 13:45:17 sirius sshd[3241]: debug1: rexec start in 4 out 4 newsock 4 pipe 6 sock 7
> Nov 12 13:45:17 sirius sshd[3241]: debug1: inetd sockets after dupping: 3, 3
> Nov 12 13:45:17 sirius sshd[3241]: Connection from 192.168.8.3 port 39668 on 192.168.8.3 port 50400
> Nov 12 13:45:17 sirius sshd[3241]: debug1: Client protocol version 2.0; client software version OpenSSH_7.4p1 Debian-10+deb9u4
> Nov 12 13:45:17 sirius sshd[3241]: debug1: match: OpenSSH_7.4p1 Debian-10+deb9u4 pat OpenSSH* compat 0x04000000
> Nov 12 13:45:17 sirius sshd[3241]: debug1: Local version string SSH-2.0-OpenSSH_7.4p1 Debian-10+deb9u4
> Nov 12 13:45:17 sirius sshd[3241]: debug1: Enabling compatibility mode for protocol 2.0
> Nov 12 13:45:17 sirius sshd[3241]: debug2: fd 3 setting O_NONBLOCK
> Nov 12 13:45:17 sirius sshd[3241]: debug3: ssh_sandbox_init: preparing seccomp filter sandbox
> Nov 12 13:45:17 sirius sshd[3241]: debug2: Network child is on pid 3242
> Nov 12 13:45:17 sirius sshd[3241]: debug3: preauth child monitor started
> Nov 12 13:45:17 sirius sshd[3241]: debug3: privsep user:group 117:65534 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug1: permanently_set_uid: 117/65534 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: ssh_sandbox_child: setting PR_SET_NO_NEW_PRIVS [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: ssh_sandbox_child: attaching seccomp filter program [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug1: list_hostkey_types: ssh-ed25519,ssh-rsa,rsa-sha2-512,rsa-sha2-256 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: send packet: type 20 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug1: SSH2_MSG_KEXINIT sent [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: receive packet: type 20 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug1: SSH2_MSG_KEXINIT received [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug2: local server KEXINIT proposal [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug2: KEX algorithms: curve25519-sha256,curve25519-sha256@xxxxxxxxxx,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug2: host key algorithms: ssh-ed25519,ssh-rsa,rsa-sha2-512,rsa-sha2-256 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug2: ciphers ctos: chacha20-poly1305@xxxxxxxxxxx,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@xxxxxxxxxxx,aes256-gcm@xxxxxxxxxxx[preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug2: ciphers stoc: chacha20-poly1305@xxxxxxxxxxx,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@xxxxxxxxxxx,aes256-gcm@xxxxxxxxxxx[preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug2: MACs ctos: umac-64-etm@xxxxxxxxxxx,umac-128-etm@xxxxxxxxxxx,hmac-sha2-256-etm@xxxxxxxxxxx,hmac-sha2-512-etm@xxxxxxxxxxx,hmac-sha1-etm@xxxxxxxxxxx,umac-64@xxxxxxxxxxx,umac-128@xxxxxxxxxxx,hmac-sha2-256,hmac-sha2-512,hmac-sha1 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug2: MACs stoc: umac-64-etm@xxxxxxxxxxx,umac-128-etm@xxxxxxxxxxx,hmac-sha2-256-etm@xxxxxxxxxxx,hmac-sha2-512-etm@xxxxxxxxxxx,hmac-sha1-etm@xxxxxxxxxxx,umac-64@xxxxxxxxxxx,umac-128@xxxxxxxxxxx,hmac-sha2-256,hmac-sha2-512,hmac-sha1 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug2: compression ctos: none [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug2: compression stoc: none [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug2: languages ctos: [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug2: languages stoc: [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug2: first_kex_follows 0 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug2: reserved 0 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug2: peer client KEXINIT proposal [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug2: KEX algorithms: curve25519-sha256,curve25519-sha256@xxxxxxxxxx,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1,ext-info-c [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug2: host key algorithms: ssh-ed25519-cert-v01@xxxxxxxxxxx,ssh-ed25519,ecdsa-sha2-nistp256-cert-v01@xxxxxxxxxxx,ecdsa-sha2-nistp384-cert-v01@xxxxxxxxxxx,ecdsa-sha2-nistp521-cert-v01@xxxxxxxxxxx,ssh-rsa-cert-v01@xxxxxxxxxxx,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,rsa-sha2-512,rsa-sha2-256,ssh-rsa [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug2: ciphers ctos: chacha20-poly1305@xxxxxxxxxxx,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@xxxxxxxxxxx,aes256-gcm@xxxxxxxxxxx,aes128-cbc,aes192-cbc,aes256-cbc [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug2: ciphers stoc: chacha20-poly1305@xxxxxxxxxxx,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@xxxxxxxxxxx,aes256-gcm@xxxxxxxxxxx,aes128-cbc,aes192-cbc,aes256-cbc [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug2: MACs ctos: umac-64-etm@xxxxxxxxxxx,umac-128-etm@xxxxxxxxxxx,hmac-sha2-256-etm@xxxxxxxxxxx,hmac-sha2-512-etm@xxxxxxxxxxx,hmac-sha1-etm@xxxxxxxxxxx,umac-64@xxxxxxxxxxx,umac-128@xxxxxxxxxxx,hmac-sha2-256,hmac-sha2-512,hmac-sha1 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug2: MACs stoc: umac-64-etm@xxxxxxxxxxx,umac-128-etm@xxxxxxxxxxx,hmac-sha2-256-etm@xxxxxxxxxxx,hmac-sha2-512-etm@xxxxxxxxxxx,hmac-sha1-etm@xxxxxxxxxxx,umac-64@xxxxxxxxxxx,umac-128@xxxxxxxxxxx,hmac-sha2-256,hmac-sha2-512,hmac-sha1 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug2: compression ctos: none,zlib@xxxxxxxxxxx,zlib [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug2: compression stoc: none,zlib@xxxxxxxxxxx,zlib [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug2: languages ctos: [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug2: languages stoc: [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug2: first_kex_follows 0 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug2: reserved 0 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug1: kex: algorithm: curve25519-sha256 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug1: kex: host key algorithm: ssh-ed25519 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug1: kex: client->server cipher: chacha20-poly1305@xxxxxxxxxxx MAC: compression: none [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug1: kex: server->client cipher: chacha20-poly1305@xxxxxxxxxxx MAC: compression: none [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug1: expecting SSH2_MSG_KEX_ECDH_INIT [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: receive packet: type 30 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_key_sign entering [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_request_send entering: type 6 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_key_sign: waiting for MONITOR_ANS_SIGN [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_request_receive_expect entering: type 7 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_request_receive entering [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_request_receive entering
> Nov 12 13:45:17 sirius sshd[3241]: debug3: monitor_read: checking request 6
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_answer_sign
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_answer_sign: hostkey proof signature 0x558f44056a40(83)
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_request_send entering: type 7
> Nov 12 13:45:17 sirius sshd[3241]: debug2: monitor_read: 6 used once, disabling now
> Nov 12 13:45:17 sirius sshd[3241]: debug3: send packet: type 31 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: send packet: type 21 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug2: set_newkeys: mode 1 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug1: rekey after 134217728 blocks [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug1: SSH2_MSG_NEWKEYS sent [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug1: expecting SSH2_MSG_NEWKEYS [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: send packet: type 7 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: receive packet: type 21 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug1: SSH2_MSG_NEWKEYS received [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug2: set_newkeys: mode 0 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug1: rekey after 134217728 blocks [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug1: KEX done [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: receive packet: type 5 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: send packet: type 6 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: receive packet: type 50 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug1: userauth-request for user backuppc service ssh-connection method none [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug1: attempt 0 failures 0 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_getpwnamallow entering [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_request_send entering: type 8 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_getpwnamallow: waiting for MONITOR_ANS_PWNAM [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_request_receive_expect entering: type 9 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_request_receive entering [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_request_receive entering
> Nov 12 13:45:17 sirius sshd[3241]: debug3: monitor_read: checking request 8
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_answer_pwnamallow
> Nov 12 13:45:17 sirius sshd[3241]: debug2: parse_server_config: config reprocess config len 650
> Nov 12 13:45:17 sirius sshd[3241]: debug3: auth_shadow_acctexpired: today 17847 sp_expire -1 days left -17848
> Nov 12 13:45:17 sirius sshd[3241]: debug3: account expiration disabled
> Nov 12 13:45:17 sirius sshd[3241]: debug3: auth2_setup_methods_lists: checking methods
> Nov 12 13:45:17 sirius sshd[3241]: debug1: authentication methods list 0: publickey
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_answer_pwnamallow: sending MONITOR_ANS_PWNAM: 1
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_request_send entering: type 9
> Nov 12 13:45:17 sirius sshd[3241]: debug2: monitor_read: 8 used once, disabling now
> Nov 12 13:45:17 sirius sshd[3241]: debug2: input_userauth_request: setting up authctxt for backuppc [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_inform_authserv entering [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_request_send entering: type 4 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_auth2_read_banner entering [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_request_send entering: type 10 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_request_receive_expect entering: type 11 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_request_receive entering [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_request_receive entering
> Nov 12 13:45:17 sirius sshd[3241]: debug3: monitor_read: checking request 4
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_answer_authserv: service=ssh-connection, style=, role=
> Nov 12 13:45:17 sirius sshd[3241]: debug2: monitor_read: 4 used once, disabling now
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_request_receive entering
> Nov 12 13:45:17 sirius sshd[3241]: debug3: monitor_read: checking request 10
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_request_send entering: type 11
> Nov 12 13:45:17 sirius sshd[3241]: debug2: monitor_read: 10 used once, disabling now
> Nov 12 13:45:17 sirius sshd[3241]: debug3: send packet: type 53 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug1: userauth_send_banner: sent [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: auth2_setup_methods_lists: checking methods [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug1: authentication methods list 0: publickey [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug2: Unrecognized authentication method name: none [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: userauth_finish: failure partial=0 next methods="publickey" [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: send packet: type 51 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: receive packet: type 50 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug1: userauth-request for user backuppc service ssh-connection method publickey [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug1: attempt 1 failures 0 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug2: input_userauth_request: try method publickey [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug1: userauth_pubkey: test whether pkalg/pkblob are acceptable for ED25519 SHA256:+8vYuVEOth+7Ncxe/DYcPPBpvEwEwfPbr+qD2DKm3fY [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_key_allowed entering [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_request_send entering: type 22 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_key_allowed: waiting for MONITOR_ANS_KEYALLOWED [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_request_receive_expect entering: type 23 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_request_receive entering [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_request_receive entering
> Nov 12 13:45:17 sirius sshd[3241]: debug3: monitor_read: checking request 22
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_answer_keyallowed entering
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_answer_keyallowed: key_from_blob: 0x558f44057060
> Nov 12 13:45:17 sirius sshd[3241]: debug1: temporarily_use_uid: 200/200 (e=0/0)
> Nov 12 13:45:17 sirius sshd[3241]: debug1: trying public key file /usr/local/BackupPC/.ssh/authorized_keys
> Nov 12 13:45:17 sirius sshd[3241]: debug1: fd 4 clearing O_NONBLOCK
> Nov 12 13:45:17 sirius sshd[3241]: debug1: matching key found: file /usr/local/BackupPC/.ssh/authorized_keys, line 1 ED25519 SHA256:+8vYuVEOth+7Ncxe/DYcPPBpvEwEwfPbr+qD2DKm3fY
> Nov 12 13:45:17 sirius sshd[3241]: debug1: restore_uid: 0/0
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_answer_keyallowed: key 0x558f44057060 is allowed
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_request_send entering: type 23
> Nov 12 13:45:17 sirius sshd[3241]: debug3: send packet: type 60 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug2: userauth_pubkey: authenticated 0 pkalg ssh-ed25519 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: Postponed publickey for backuppc from 192.168.8.3 port 39668 ssh2 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: receive packet: type 50 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug1: userauth-request for user backuppc service ssh-connection method publickey [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug1: attempt 2 failures 0 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug2: input_userauth_request: try method publickey [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug1: userauth_pubkey: test whether pkalg/pkblob are acceptable for RSA SHA256:07i2CAzyT2c3NHYQRlCT2bONAW8mIgJ7EVVkmLGzMuw [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_key_allowed entering [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_request_send entering: type 22 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_key_allowed: waiting for MONITOR_ANS_KEYALLOWED [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_request_receive_expect entering: type 23 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_request_receive entering [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_request_receive entering
> Nov 12 13:45:17 sirius sshd[3241]: debug3: monitor_read: checking request 22
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_answer_keyallowed entering
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_answer_keyallowed: key_from_blob: 0x558f44056f00
> Nov 12 13:45:17 sirius sshd[3241]: debug1: temporarily_use_uid: 200/200 (e=0/0)
> Nov 12 13:45:17 sirius sshd[3241]: debug1: trying public key file /usr/local/BackupPC/.ssh/authorized_keys
> Nov 12 13:45:17 sirius sshd[3241]: debug1: fd 4 clearing O_NONBLOCK
> Nov 12 13:45:17 sirius sshd[3241]: debug2: user_key_allowed: check options: 'ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIKgBYt6r7yHGVoM2QFXFhtOdFrReyb2MycRgRdvpsFPr Generated on 181112.1124 for backuppc@sirius\n'
> Nov 12 13:45:17 sirius sshd[3241]: debug2: user_key_allowed: advance: 'AAAAC3NzaC1lZDI1NTE5AAAAIKgBYt6r7yHGVoM2QFXFhtOdFrReyb2MycRgRdvpsFPr Generated on 181112.1124 for backuppc@sirius\n'
> Nov 12 13:45:17 sirius sshd[3241]: debug1: matching key found: file /usr/local/BackupPC/.ssh/authorized_keys, line 2 RSA SHA256:07i2CAzyT2c3NHYQRlCT2bONAW8mIgJ7EVVkmLGzMuw
> Nov 12 13:45:17 sirius sshd[3241]: debug1: restore_uid: 0/0
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_answer_keyallowed: key 0x558f44056f00 is allowed
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_request_send entering: type 23
> Nov 12 13:45:17 sirius sshd[3241]: debug3: send packet: type 60 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug2: userauth_pubkey: authenticated 0 pkalg ssh-rsa [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: Postponed publickey for backuppc from 192.168.8.3 port 39668 ssh2 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: Connection closed by 192.168.8.3 port 39668 [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug1: do_cleanup [preauth]
> Nov 12 13:45:17 sirius sshd[3241]: debug1: monitor_read_log: child log fd closed
> Nov 12 13:45:17 sirius sshd[3241]: debug3: mm_request_receive entering
> Nov 12 13:45:17 sirius sshd[3241]: debug1: do_cleanup
> Nov 12 13:45:17 sirius sshd[3241]: debug1: Killing privsep child 3242
> Nov 12 13:45:17 sirius sshd[3241]: debug1: audit_event: unhandled event 12
> root@sirius/etc/ssh #
> 

What error are you getting from the client and what is the command used?

-- 
John Doe