无法SSH到Ubuntu服务器

我刚刚完成了Ubuntu Server 11.04 x86的全新安装。 在安装过程中，我select了OpenSSH，LAMP和Tomcat作为安装包。 在我以前安装的每一个Ubuntu上，我都可以使用安装过程中创build的用户/密码通过SSHlogin到新的框。 出于某种原因，我不能这样做安装。 我可以login命令行（键盘/显示器）就好了; 然而，这个盒子将被放置在没有键盘和显示器的地方，所以我需要通过SSH。 有任何想法吗？

编辑

/etc/ssh/sshd_config

 # Package generated configuration file # See the sshd_config(5) manpage for details # What ports, IPs and protocols we listen for Port 22 # Use these options to restrict which interfaces/protocols sshd will bind to #ListenAddress :: #ListenAddress 0.0.0.0 Protocol 2 # HostKeys for protocol version 2 HostKey /etc/ssh/ssh_host_rsa_key HostKey /etc/ssh/ssh_host_dsa_key HostKey /etc/ssh/ssh_host_ecdsa_key #Privilege Separation is turned on for security UsePrivilegeSeparation yes # Lifetime and size of ephemeral version 1 server key KeyRegenerationInterval 3600 ServerKeyBits 768 # Logging SyslogFacility AUTH LogLevel INFO # Authentication: LoginGraceTime 120 PermitRootLogin yes StrictModes yes RSAAuthentication yes PubkeyAuthentication yes #AuthorizedKeysFile %h/.ssh/authorized_keys # Don't read the user's ~/.rhosts and ~/.shosts files IgnoreRhosts yes # For this to work you will also need host keys in /etc/ssh_known_hosts RhostsRSAAuthentication no # similar for protocol version 2 HostbasedAuthentication no # Uncomment if you don't trust ~/.ssh/known_hosts for RhostsRSAAuthentication #IgnoreUserKnownHosts yes # To enable empty passwords, change to yes (NOT RECOMMENDED) PermitEmptyPasswords no # Change to yes to enable challenge-response passwords (beware issues with # some PAM modules and threads) ChallengeResponseAuthentication no # Change to no to disable tunnelled clear text passwords #PasswordAuthentication yes # Kerberos options #KerberosAuthentication no #KerberosGetAFSToken no #KerberosOrLocalPasswd yes #KerberosTicketCleanup yes # GSSAPI options #GSSAPIAuthentication no #GSSAPICleanupCredentials yes X11Forwarding yes X11DisplayOffset 10 PrintMotd no PrintLastLog yes TCPKeepAlive yes #UseLogin no #MaxStartups 10:30:60 #Banner /etc/issue.net # Allow client to pass locale environment variables AcceptEnv LANG LC_* Subsystem sftp /usr/lib/openssh/sftp-server # Set this to 'yes' to enable PAM authentication, account processing, # and session processing. If this is enabled, PAM authentication will # be allowed through the ChallengeResponseAuthentication and # PasswordAuthentication. Depending on your PAM configuration, # PAM authentication via ChallengeResponseAuthentication may bypass # the setting of "PermitRootLogin without-password". # If you just want the PAM account and session checks to run without # PAM authentication, then enable this but set PasswordAuthentication # and ChallengeResponseAuthentication to 'no'. UsePAM yes 

/var/log/auth.log

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 Jul 14 09:45:00 test sshd[544]: Received signal 15; terminating. Jul 14 09:45:00 test sshd[601]: Server listening on 0.0.0.0 port 22. Jul 14 09:45:00 test sshd[601]: Server listening on :: port 22. Jul 14 09:48:51 test sshd[884]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=10.10.9.100 user=nik Jul 14 09:48:53 test sshd[884]: Failed password for nik from 10.10.9.100 port 50295 ssh2 Jul 14 09:49:06 test sshd[884]: last message repeated 2 times Jul 14 09:49:06 test sshd[884]: PAM 2 more authentication failures; logname= uid=0 euid=0 tty=ssh ruser= rhost=10.10.9.100 user=nik Jul 14 09:49:25 test login[829]: pam_unix(login:auth): authentication failure; logname=LOGIN uid=0 euid=0 tty=/dev/tty1 ruser= rhost= user=nik Jul 14 09:49:28 test login[829]: FAILED LOGIN (1) on '/dev/tty1' FOR 'nik', Authentication failure Jul 14 09:49:36 test login[829]: pam_unix(login:session): session opened for user nik by LOGIN(uid=0) Jul 14 09:59:00 test sudo: pam_unix(sudo:auth): authentication failure; logname=nik uid=0 euid=0 tty=/dev/tty1 ruser=nik rhost= user=nik Jul 14 09:59:04 test sudo: nik : TTY=tty1 ; PWD=/var/www ; USER=root ; COMMAND=/bin/cp /etc/ssh/sshd_config ./sshd_config Jul 14 10:06:24 test sudo: nik : TTY=tty1 ; PWD=/var/www ; USER=root ; COMMAND=/bin/cp /var/log/auth.log ./auth.log 

 netstat -tapn |grep 22 tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 14146/sshd 

 sudo /etc/init.d/ssh restart