1. #    $OpenBSD: sshd_config,v 1.100 2016/08/15 12:32:04 naddy Exp $
    3. # This is the sshd server system-wide configuration file.  See
    4. # sshd_config(5) for more information.
    6. # This sshd was compiled with PATH=/usr/local/bin:/usr/bin
    8. # The strategy used for options in the default sshd_config shipped with
    9. # OpenSSH is to specify options with their default value where
    10. # possible, but leave them commented.  Uncommented options override the
    11. # default value.
    13. # If you want to change the port on a SELinux system, you have to tell
    14. # SELinux about this change.
    15. # semanage port -a -t ssh_port_t -p tcp #PORTNUMBER
    16. #
    17. #Port 22
    18. #AddressFamily any
    19. #ListenAddress 0.0.0.0
    20. #ListenAddress ::
    22. HostKey /etc/ssh/ssh_host_rsa_key
    23. #HostKey /etc/ssh/ssh_host_dsa_key
    24. HostKey /etc/ssh/ssh_host_ecdsa_key
    25. HostKey /etc/ssh/ssh_host_ed25519_key
    27. # Ciphers and keying
    28. #RekeyLimit default none
    30. # Logging
    31. #SyslogFacility AUTH
    32. SyslogFacility AUTHPRIV
    33. #LogLevel INFO
    35. # Authentication:
    37. #LoginGraceTime 2m
    38. #PermitRootLogin yes
    39. #StrictModes yes
    40. #MaxAuthTries 6
    41. #MaxSessions 10
    43. #PubkeyAuthentication yes
    45. # The default is to check both .ssh/authorized_keys and .ssh/authorized_keys2
    46. # but this is overridden so installations will only check .ssh/authorized_keys
    47. AuthorizedKeysFile    .ssh/authorized_keys
    49. #AuthorizedPrincipalsFile none
    51. #AuthorizedKeysCommand none
    52. #AuthorizedKeysCommandUser nobody
    54. # For this to work you will also need host keys in /etc/ssh/ssh_known_hosts
    55. #HostbasedAuthentication no
    56. # Change to yes if you don't trust ~/.ssh/known_hosts for
    57. # HostbasedAuthentication
    58. #IgnoreUserKnownHosts no
    59. # Don't read the user's ~/.rhosts and ~/.shosts files
    60. #IgnoreRhosts yes
    62. # To disable tunneled clear text passwords, change to no here!
    63. #PasswordAuthentication yes
    64. #PermitEmptyPasswords no
    65. PasswordAuthentication yes
    67. # Change to no to disable s/key passwords
    68. #ChallengeResponseAuthentication yes
    69. ChallengeResponseAuthentication no
    71. # Kerberos options
    72. #KerberosAuthentication no
    73. #KerberosOrLocalPasswd yes
    74. #KerberosTicketCleanup yes
    75. #KerberosGetAFSToken no
    76. #KerberosUseKuserok yes
    78. # GSSAPI options
    79. GSSAPIAuthentication yes
    80. GSSAPICleanupCredentials no
    81. #GSSAPIStrictAcceptorCheck yes
    82. #GSSAPIKeyExchange no
    83. #GSSAPIEnablek5users no
    85. # Set this to 'yes' to enable PAM authentication, account processing,
    86. # and session processing. If this is enabled, PAM authentication will
    87. # be allowed through the ChallengeResponseAuthentication and
    88. # PasswordAuthentication.  Depending on your PAM configuration,
    89. # PAM authentication via ChallengeResponseAuthentication may bypass
    90. # the setting of "PermitRootLogin without-password".
    91. # If you just want the PAM account and session checks to run without
    92. # PAM authentication, then enable this but set PasswordAuthentication
    93. # and ChallengeResponseAuthentication to 'no'.
    94. # WARNING: 'UsePAM no' is not supported in Red Hat Enterprise Linux and may cause several
    95. # problems.
    96. UsePAM yes
    98. #AllowAgentForwarding yes
    99. #AllowTcpForwarding yes
    100. #GatewayPorts no
    101. X11Forwarding yes
    102. #X11DisplayOffset 10
    103. #X11UseLocalhost yes
    104. #PermitTTY yes
    105. #PrintMotd yes
    106. #PrintLastLog yes
    107. #TCPKeepAlive yes
    108. #UseLogin no
    109. #UsePrivilegeSeparation sandbox
    110. #PermitUserEnvironment no
    111. #Compression delayed
    112. #ClientAliveInterval 0
    113. #ClientAliveCountMax 3
    114. #ShowPatchLevel no
    115. #UseDNS yes
    116. #PidFile /var/run/sshd.pid
    117. #MaxStartups 10:30:100
    118. #PermitTunnel no
    119. #ChrootDirectory none
    120. #VersionAddendum none
    122. # no default banner path
    123. #Banner none
    125. # Accept locale-related environment variables
    126. AcceptEnv LANG LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY LC_MESSAGES
    127. AcceptEnv LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE LC_MEASUREMENT
    128. AcceptEnv LC_IDENTIFICATION LC_ALL LANGUAGE
    129. AcceptEnv XMODIFIERS
    131. # override default of no subsystems
    132. Subsystem    sftp    /usr/libexec/openssh/sftp-server
    134. # Example of overriding settings on a per-user basis
    135. #Match User anoncvs
    136. #    X11Forwarding no
    137. #    AllowTcpForwarding no
    138. #    PermitTTY no
    139. #    ForceCommand cvs server

    去掉注释和空格后

    1. cat /etc/ssh/sshd_config  | grep -v '^#' | grep  -v '^$'
    1. HostKey /etc/ssh/ssh_host_rsa_key
    2. HostKey /etc/ssh/ssh_host_ecdsa_key
    3. HostKey /etc/ssh/ssh_host_ed25519_key
    4. SyslogFacility AUTHPRIV
    5. AuthorizedKeysFile    .ssh/authorized_keys
    6. PasswordAuthentication yes
    7. ChallengeResponseAuthentication no
    8. GSSAPIAuthentication yes
    9. GSSAPICleanupCredentials no
    10. UsePAM yes
    11. X11Forwarding yes
    12. AcceptEnv LANG LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY LC_MESSAGES
    13. AcceptEnv LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE LC_MEASUREMENT
    14. AcceptEnv LC_IDENTIFICATION LC_ALL LANGUAGE
    15. AcceptEnv XMODIFIERS
    16. Subsystem    sftp    /usr/libexec/openssh/sftp-server
    1. HostKey /etc/ssh/ssh_host_rsa_key
    2. HostKey /etc/ssh/ssh_host_ecdsa_key
    3. HostKey /etc/ssh/ssh_host_ed25519_key
    4. SyslogFacility AUTHPRIV
    5. AuthorizedKeysFile    .ssh/authorized_keys
    6. ChallengeResponseAuthentication no
    7. GSSAPIAuthentication yes
    8. GSSAPICleanupCredentials no
    9. UsePAM yes
    10. X11Forwarding yes
    11. AcceptEnv LANG LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY LC_MESSAGES
    12. AcceptEnv LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE LC_MEASUREMENT
    13. AcceptEnv LC_IDENTIFICATION LC_ALL LANGUAGE
    14. AcceptEnv XMODIFIERS
    15. Subsystem    sftp    /usr/libexec/openssh/sftp-server
    17. #禁用密码验证
    18. PasswordAuthentication no
    19. #启用密钥验证
    20. PubkeyAuthentication yes