1 # $OpenBSD: sshd_config,v 1.82 2010/09/06 17:10:19 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/bin:/bin:/usr/sbin:/sbin
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 change a
13 # Note that some of DragonFly's defaults differ from OpenBSD's, and
14 # DragonFly has a few additional options.
16 #VersionAddendum DragonFly-20110408
20 #ListenAddress 0.0.0.0
23 # The default requires explicit activation of protocol 1
26 # HostKey for protocol version 1
27 #HostKey /etc/ssh/ssh_host_key
28 # HostKeys for protocol version 2
29 #HostKey /etc/ssh/ssh_host_rsa_key
30 #HostKey /etc/ssh/ssh_host_dsa_key
31 #HostKey /etc/ssh/ssh_host_ecdsa_key
33 # Lifetime and size of ephemeral version 1 server key
34 #KeyRegenerationInterval 1h
38 # obsoletes QuietMode and FascistLogging
45 # only allow root logins via public key pair
46 PermitRootLogin without-password
51 #RSAAuthentication yes
52 #PubkeyAuthentication yes
53 #PermitBlacklistedKeys no
54 #AuthorizedKeysFile .ssh/authorized_keys
56 # For this to work you will also need host keys in /etc/ssh/ssh_known_hosts
57 RhostsRSAAuthentication no
58 # similar for protocol version 2
59 HostbasedAuthentication no
60 # Change to yes if you don't trust ~/.ssh/known_hosts for
61 # RhostsRSAAuthentication and HostbasedAuthentication
62 #IgnoreUserKnownHosts no
63 # Don't read the user's ~/.rhosts and ~/.shosts files
66 # To disable tunneled clear text passwords, change to no here!
67 # We disable cleartext passwords by default
68 PasswordAuthentication no
69 #PermitEmptyPasswords no
71 # Change to no to disable s/key and tunneled clear-text passwords
72 # when PAM is enabled. We disable this by default. Note that
73 # PAM is also disabled by default.
74 ChallengeResponseAuthentication no
77 #KerberosAuthentication no
78 #KerberosOrLocalPasswd yes
79 #KerberosTicketCleanup yes
80 #KerberosGetAFSToken no
83 #GSSAPIAuthentication no
84 #GSSAPICleanupCredentials yes
86 # Set this to 'yes' to enable PAM authentication, account processing,
87 # and session processing. If this is enabled, PAM authentication will
88 # be allowed through the ChallengeResponseAuthentication and
89 # PasswordAuthentication. Depending on your PAM configuration,
90 # PAM authentication via ChallengeResponseAuthentication may bypass
91 # the setting of "PermitRootLogin without-password".
92 # If you just want the PAM account and session checks to run without
93 # PAM authentication, then enable this but set PasswordAuthentication
94 # and ChallengeResponseAuthentication to 'no'.
97 #AllowAgentForwarding yes
98 #AllowTcpForwarding yes
107 #UsePrivilegeSeparation yes
108 #PermitUserEnvironment no
110 #ClientAliveInterval 0
111 #ClientAliveCountMax 3
113 #PidFile /var/run/sshd.pid
116 #ChrootDirectory none
118 #XAuthLocation /usr/pkg/bin/xauth
120 # no default banner path
123 # override default of no subsystems
124 Subsystem sftp /usr/libexec/sftp-server
126 # the following are HPN related configuration options
127 # tcp receive buffer polling. disable in non autotuning kernels
130 # allow the use of the none cipher
133 # disable hpn performance boosts.
136 # buffer size for hpn to non-hpn connections
140 # Example of overriding settings on a per-user basis
143 # AllowTcpForwarding no
144 # ForceCommand cvs server