1 # $OpenBSD: sshd_config,v 1.87 2012/07/10 02:19:15 djm Exp $
4 # This is the sshd server system-wide configuration file. See
5 # sshd_config(5) for more information.
7 # This sshd was compiled with PATH=/usr/bin:/bin:/usr/sbin:/sbin
9 # The strategy used for options in the default sshd_config shipped with
10 # OpenSSH is to specify options with their default value where
11 # possible, but leave them commented. Uncommented options override the
14 # Note that some of FreeBSD's defaults differ from OpenBSD's, and
15 # FreeBSD has a few additional options.
19 #ListenAddress 0.0.0.0
22 # The default requires explicit activation of protocol 1
25 # HostKey for protocol version 1
26 #HostKey /etc/ssh/ssh_host_key
27 # HostKeys for protocol version 2
28 #HostKey /etc/ssh/ssh_host_rsa_key
29 #HostKey /etc/ssh/ssh_host_dsa_key
30 #HostKey /etc/ssh/ssh_host_ecdsa_key
32 # Lifetime and size of ephemeral version 1 server key
33 #KeyRegenerationInterval 1h
37 # obsoletes QuietMode and FascistLogging
49 #RSAAuthentication yes
50 #PubkeyAuthentication yes
52 # The default is to check both .ssh/authorized_keys and .ssh/authorized_keys2
53 #AuthorizedKeysFile .ssh/authorized_keys .ssh/authorized_keys2
55 #AuthorizedPrincipalsFile none
57 # For this to work you will also need host keys in /etc/ssh/ssh_known_hosts
58 #RhostsRSAAuthentication no
59 # similar for protocol version 2
60 #HostbasedAuthentication no
61 # Change to yes if you don't trust ~/.ssh/known_hosts for
62 # RhostsRSAAuthentication and HostbasedAuthentication
63 #IgnoreUserKnownHosts no
64 # Don't read the user's ~/.rhosts and ~/.shosts files
67 # Change to yes to enable built-in password authentication.
68 #PasswordAuthentication no
69 #PermitEmptyPasswords no
71 # Change to no to disable PAM authentication
72 #ChallengeResponseAuthentication yes
75 #KerberosAuthentication no
76 #KerberosOrLocalPasswd yes
77 #KerberosTicketCleanup yes
78 #KerberosGetAFSToken no
81 #GSSAPIAuthentication no
82 #GSSAPICleanupCredentials yes
84 # Set this to 'no' to disable PAM authentication, account processing,
85 # and session processing. If this is enabled, PAM authentication will
86 # be allowed through the ChallengeResponseAuthentication and
87 # PasswordAuthentication. Depending on your PAM configuration,
88 # PAM authentication via ChallengeResponseAuthentication may bypass
89 # the setting of "PermitRootLogin without-password".
90 # If you just want the PAM account and session checks to run without
91 # PAM authentication, then enable this but set PasswordAuthentication
92 # and ChallengeResponseAuthentication to 'no'.
95 #AllowAgentForwarding yes
96 #AllowTcpForwarding yes
105 #UsePrivilegeSeparation sandbox
106 #PermitUserEnvironment no
108 #ClientAliveInterval 0
109 #ClientAliveCountMax 3
111 #PidFile /var/run/sshd.pid
114 #ChrootDirectory none
115 #VersionAddendum FreeBSD-20120901
117 # no default banner path
120 # override default of no subsystems
121 Subsystem sftp /usr/libexec/sftp-server
123 # Disable HPN tuning improvements.
126 # Buffer size for HPN to non-HPN connections.
129 # TCP receive socket buffer polling for HPN. Disable on non autotuning kernels.
132 # Allow the use of the NONE cipher.
135 # Example of overriding settings on a per-user basis
138 # AllowTcpForwarding no
139 # ForceCommand cvs server