1 1.1 christos # $NetBSD: sshd_config,v 1.1 2009/06/07 22:19:29 christos Exp $ 2 1.1 christos # $OpenBSD: sshd_config,v 1.80 2008/07/02 02:24:18 djm Exp $ 3 1.1 christos 4 1.1 christos # This is the sshd server system-wide configuration file. See 5 1.1 christos # sshd_config(5) for more information. 6 1.1 christos 7 1.1 christos # The strategy used for options in the default sshd_config shipped with 8 1.1 christos # OpenSSH is to specify options with their default value where 9 1.1 christos # possible, but leave them commented. Uncommented options change a 10 1.1 christos # default value. 11 1.1 christos 12 1.1 christos #Port 22 13 1.1 christos #AddressFamily any 14 1.1 christos #ListenAddress 0.0.0.0 15 1.1 christos #ListenAddress :: 16 1.1 christos 17 1.1 christos # Disable legacy (protocol version 1) support in the server for new 18 1.1 christos # installations. In future the default will change to require explicit 19 1.1 christos # activation of protocol 1 20 1.1 christos Protocol 2 21 1.1 christos 22 1.1 christos # HostKey for protocol version 1 23 1.1 christos #HostKey /etc/ssh/ssh_host_key 24 1.1 christos # HostKeys for protocol version 2 25 1.1 christos #HostKey /etc/ssh/ssh_host_rsa_key 26 1.1 christos #HostKey /etc/ssh/ssh_host_dsa_key 27 1.1 christos 28 1.1 christos # Lifetime and size of ephemeral version 1 server key 29 1.1 christos #KeyRegenerationInterval 1h 30 1.1 christos #ServerKeyBits 1024 31 1.1 christos 32 1.1 christos # Logging 33 1.1 christos # obsoletes QuietMode and FascistLogging 34 1.1 christos #SyslogFacility AUTH 35 1.1 christos #LogLevel INFO 36 1.1 christos 37 1.1 christos # Authentication: 38 1.1 christos 39 1.1 christos #LoginGraceTime 2m 40 1.1 christos #PermitRootLogin yes 41 1.1 christos #StrictModes yes 42 1.1 christos #MaxAuthTries 6 43 1.1 christos #MaxSessions 10 44 1.1 christos 45 1.1 christos #RSAAuthentication yes 46 1.1 christos #PubkeyAuthentication yes 47 1.1 christos #AuthorizedKeysFile .ssh/authorized_keys 48 1.1 christos 49 1.1 christos # For this to work you will also need host keys in /etc/ssh/ssh_known_hosts 50 1.1 christos #RhostsRSAAuthentication no 51 1.1 christos # similar for protocol version 2 52 1.1 christos #HostbasedAuthentication no 53 1.1 christos # Change to yes if you don't trust ~/.ssh/known_hosts for 54 1.1 christos # RhostsRSAAuthentication and HostbasedAuthentication 55 1.1 christos #IgnoreUserKnownHosts no 56 1.1 christos # Don't read the user's ~/.rhosts and ~/.shosts files 57 1.1 christos #IgnoreRhosts yes 58 1.1 christos 59 1.1 christos # To disable tunneled clear text passwords, change to no here! 60 1.1 christos #PasswordAuthentication yes 61 1.1 christos #PermitEmptyPasswords no 62 1.1 christos 63 1.1 christos # Change to no to disable s/key passwords 64 1.1 christos #ChallengeResponseAuthentication yes 65 1.1 christos 66 1.1 christos # Kerberos options 67 1.1 christos #KerberosAuthentication no 68 1.1 christos #KerberosOrLocalPasswd yes 69 1.1 christos #KerberosTicketCleanup yes 70 1.1 christos #KerberosGetAFSToken no 71 1.1 christos 72 1.1 christos # GSSAPI options 73 1.1 christos #GSSAPIAuthentication no 74 1.1 christos #GSSAPICleanupCredentials yes 75 1.1 christos 76 1.1 christos #AllowAgentForwarding yes 77 1.1 christos #AllowTcpForwarding yes 78 1.1 christos #GatewayPorts no 79 1.1 christos #X11Forwarding no 80 1.1 christos #X11DisplayOffset 10 81 1.1 christos #X11UseLocalhost yes 82 1.1 christos #PrintMotd yes 83 1.1 christos #PrintLastLog yes 84 1.1 christos #TCPKeepAlive yes 85 1.1 christos #UseLogin no 86 1.1 christos #UsePrivilegeSeparation yes 87 1.1 christos #PermitUserEnvironment no 88 1.1 christos #Compression delayed 89 1.1 christos #ClientAliveInterval 0 90 1.1 christos #ClientAliveCountMax 3 91 1.1 christos #UseDNS yes 92 1.1 christos #PidFile /var/run/sshd.pid 93 1.1 christos #MaxStartups 10 94 1.1 christos #PermitTunnel no 95 1.1 christos #ChrootDirectory none 96 1.1 christos 97 1.1 christos # no default banner path 98 1.1 christos #Banner none 99 1.1 christos 100 1.1 christos # override default of no subsystems 101 1.1 christos Subsystem sftp /usr/libexec/sftp-server 102 1.1 christos 103 1.1 christos # Example of overriding settings on a per-user basis 104 1.1 christos #Match User anoncvs 105 1.1 christos # X11Forwarding no 106 1.1 christos # AllowTcpForwarding no 107 1.1 christos # ForceCommand cvs server 108