mail:~# /usr/sbin/sshd -p22222 -ddd
debug2: load_server_config: filename /etc/ssh/sshd_config
debug2: load_server_config: done config len = 639
debug2: parse_server_config: config /etc/ssh/sshd_config len 639
debug3: /etc/ssh/sshd_config:5 setting Port 22
debug3: /etc/ssh/sshd_config:9 setting Protocol 2,1
debug3: /etc/ssh/sshd_config:11 setting HostKey /etc/ssh/ssh_host_key
debug3: /etc/ssh/sshd_config:13 setting HostKey /etc/ssh/ssh_host_rsa_key
debug3: /etc/ssh/sshd_config:14 setting HostKey /etc/ssh/ssh_host_dsa_key
debug3: /etc/ssh/sshd_config:16 setting UsePrivilegeSeparation yes
debug3: /etc/ssh/sshd_config:19 setting KeyRegenerationInterval 3600
debug3: /etc/ssh/sshd_config:20 setting ServerKeyBits 768
debug3: /etc/ssh/sshd_config:23 setting SyslogFacility AUTH
debug3: /etc/ssh/sshd_config:24 setting LogLevel INFO
debug3: /etc/ssh/sshd_config:27 setting LoginGraceTime 600
debug3: /etc/ssh/sshd_config:28 setting PermitRootLogin yes
debug3: /etc/ssh/sshd_config:29 setting StrictModes yes
debug3: /etc/ssh/sshd_config:31 setting RSAAuthentication yes
debug3: /etc/ssh/sshd_config:32 setting PubkeyAuthentication yes
debug3: /etc/ssh/sshd_config:36 setting IgnoreRhosts yes
debug3: /etc/ssh/sshd_config:38 setting RhostsRSAAuthentication no
debug3: /etc/ssh/sshd_config:40 setting HostbasedAuthentication no
debug3: /etc/ssh/sshd_config:45 setting PermitEmptyPasswords no
debug3: /etc/ssh/sshd_config:51 setting PasswordAuthentication no
debug3: /etc/ssh/sshd_config:63 setting X11Forwarding yes
debug3: /etc/ssh/sshd_config:64 setting X11DisplayOffset 10
debug3: /etc/ssh/sshd_config:65 setting PrintMotd no
debug3: /etc/ssh/sshd_config:66 setting PrintLastLog yes
debug3: /etc/ssh/sshd_config:67 setting TCPKeepAlive yes
debug3: /etc/ssh/sshd_config:73 setting Subsystem sftp /usr/lib/openssh/sftp-server
debug3: /etc/ssh/sshd_config:75 setting UsePAM yes
debug1: sshd version OpenSSH_5.5p1 Debian-6
debug1: Checking blacklist file /usr/share/ssh/blacklist.RSA-1024
debug1: Checking blacklist file /etc/ssh/blacklist.RSA-1024
debug1: private host key: #0 type 0 RSA1
debug3: Not a RSA1 key file /etc/ssh/ssh_host_rsa_key.
debug1: read PEM private key done: type RSA
debug1: Checking blacklist file /usr/share/ssh/blacklist.RSA-1024
debug1: Checking blacklist file /etc/ssh/blacklist.RSA-1024
debug1: private host key: #1 type 1 RSA
debug3: Not a RSA1 key file /etc/ssh/ssh_host_dsa_key.
debug1: read PEM private key done: type DSA
debug1: Checking blacklist file /usr/share/ssh/blacklist.DSA-1024
debug1: Checking blacklist file /etc/ssh/blacklist.DSA-1024
debug1: private host key: #2 type 2 DSA
debug1: rexec_argv[0]='/usr/sbin/sshd'
debug1: rexec_argv[1]='-p22222'
debug1: rexec_argv[2]='-ddd'
debug3: oom_adjust_setup
Set /proc/self/oom_adj from 0 to -17
debug2: fd 3 setting O_NONBLOCK
debug1: Bind to port 22222 on 0.0.0.0.
Server listening on 0.0.0.0 port 22222.
socket: Address family not supported by protocol
Generating 768 bit RSA key.
RSA key generation complete.

*** now I'm trying to log in on port 22222 ***

debug3: fd 4 is not O_NONBLOCK
debug1: Server will not fork when running in debugging mode.
debug3: send_rexec_state: entering fd = 7 config len 639
debug3: ssh_msg_send: type 0
debug3: send_rexec_state: done
debug1: rexec start in 4 out 4 newsock 4 pipe -1 sock 7
debug1: inetd sockets after dupping: 3, 3
Connection from 172.28.0.5 port 52507
Did not receive identification string from 172.28.0.5