xref: /openbsd/usr.bin/ssh/sshd_config (revision 3d892b28)
1#	$OpenBSD: sshd_config,v 1.84 2011/05/23 03:30:07 djm Exp $
2
3# This is the sshd server system-wide configuration file.  See
4# sshd_config(5) for more information.
5
6# The strategy used for options in the default sshd_config shipped with
7# OpenSSH is to specify options with their default value where
8# possible, but leave them commented.  Uncommented options override the
9# default value.
10
11#Port 22
12#AddressFamily any
13#ListenAddress 0.0.0.0
14#ListenAddress ::
15
16# The default requires explicit activation of protocol 1
17#Protocol 2
18
19# HostKey for protocol version 1
20#HostKey /etc/ssh/ssh_host_key
21# HostKeys for protocol version 2
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
26# Lifetime and size of ephemeral version 1 server key
27#KeyRegenerationInterval 1h
28#ServerKeyBits 1024
29
30# Logging
31# obsoletes QuietMode and FascistLogging
32#SyslogFacility AUTH
33#LogLevel INFO
34
35# Authentication:
36
37#LoginGraceTime 2m
38#PermitRootLogin yes
39#StrictModes yes
40#MaxAuthTries 6
41#MaxSessions 10
42
43#RSAAuthentication yes
44#PubkeyAuthentication yes
45
46# The default is to check both .ssh/authorized_keys and .ssh/authorized_keys2
47# but this is overridden so installations will only check .ssh/authorized_keys
48AuthorizedKeysFile	.ssh/authorized_keys
49
50# For this to work you will also need host keys in /etc/ssh/ssh_known_hosts
51#RhostsRSAAuthentication no
52# similar for protocol version 2
53#HostbasedAuthentication no
54# Change to yes if you don't trust ~/.ssh/known_hosts for
55# RhostsRSAAuthentication and HostbasedAuthentication
56#IgnoreUserKnownHosts no
57# Don't read the user's ~/.rhosts and ~/.shosts files
58#IgnoreRhosts yes
59
60# To disable tunneled clear text passwords, change to no here!
61#PasswordAuthentication yes
62#PermitEmptyPasswords no
63
64# Change to no to disable s/key passwords
65#ChallengeResponseAuthentication yes
66
67# Kerberos options
68#KerberosAuthentication no
69#KerberosOrLocalPasswd yes
70#KerberosTicketCleanup yes
71#KerberosGetAFSToken no
72
73# GSSAPI options
74#GSSAPIAuthentication no
75#GSSAPICleanupCredentials yes
76
77#AllowAgentForwarding yes
78#AllowTcpForwarding yes
79#GatewayPorts no
80#X11Forwarding no
81#X11DisplayOffset 10
82#X11UseLocalhost yes
83#PrintMotd yes
84#PrintLastLog yes
85#TCPKeepAlive yes
86#UseLogin no
87#UsePrivilegeSeparation yes
88#PermitUserEnvironment no
89#Compression delayed
90#ClientAliveInterval 0
91#ClientAliveCountMax 3
92#UseDNS yes
93#PidFile /var/run/sshd.pid
94#MaxStartups 10
95#PermitTunnel no
96#ChrootDirectory none
97
98# no default banner path
99#Banner none
100
101# override default of no subsystems
102Subsystem	sftp	/usr/libexec/sftp-server
103
104# Example of overriding settings on a per-user basis
105#Match User anoncvs
106#	X11Forwarding no
107#	AllowTcpForwarding no
108#	ForceCommand cvs server
109