1 # $OpenBSD: sshd_config,v 1.97 2015/08/06 14:53:21 deraadt Exp $ 2 3 # This is the sshd server system-wide configuration file. See 4 # sshd_config(5) for more information. 5 6 # This sshd was compiled with PATH=/usr/bin:/bin:/usr/sbin:/sbin 7 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. 12 13 #Port 22 14 #AddressFamily any 15 #ListenAddress 0.0.0.0 16 #ListenAddress :: 17 18 # The default requires explicit activation of protocol 1 19 #Protocol 2 20 21 # HostKey for protocol version 1 22 #HostKey /etc/ssh/ssh_host_key 23 # HostKeys for protocol version 2 24 #HostKey /etc/ssh/ssh_host_rsa_key 25 #HostKey /etc/ssh/ssh_host_dsa_key 26 #HostKey /etc/ssh/ssh_host_ecdsa_key 27 #HostKey /etc/ssh/ssh_host_ed25519_key 28 29 # Lifetime and size of ephemeral version 1 server key 30 #KeyRegenerationInterval 1h 31 #ServerKeyBits 1024 32 33 # Ciphers and keying 34 #RekeyLimit default none 35 36 # Logging 37 # obsoletes QuietMode and FascistLogging 38 #SyslogFacility AUTH 39 #LogLevel INFO 40 41 # Authentication: 42 43 #LoginGraceTime 2m 44 #PermitRootLogin prohibit-password 45 #StrictModes yes 46 #MaxAuthTries 6 47 #MaxSessions 10 48 49 #RSAAuthentication yes 50 #PubkeyAuthentication yes 51 52 # The default is to check both .ssh/authorized_keys and .ssh/authorized_keys2 53 # but this is overridden so installations will only check .ssh/authorized_keys 54 AuthorizedKeysFile .ssh/authorized_keys 55 56 #AuthorizedPrincipalsFile none 57 58 #AuthorizedKeysCommand none 59 #AuthorizedKeysCommandUser nobody 60 61 # For this to work you will also need host keys in /etc/ssh/ssh_known_hosts 62 #RhostsRSAAuthentication no 63 # similar for protocol version 2 64 #HostbasedAuthentication no 65 # Change to yes if you don't trust ~/.ssh/known_hosts for 66 # RhostsRSAAuthentication and HostbasedAuthentication 67 #IgnoreUserKnownHosts no 68 # Don't read the user's ~/.rhosts and ~/.shosts files 69 #IgnoreRhosts yes 70 71 # To disable tunneled clear text passwords, change to no here! 72 #PasswordAuthentication yes 73 #PermitEmptyPasswords no 74 75 # Change to no to disable s/key passwords 76 #ChallengeResponseAuthentication yes 77 78 # Kerberos options 79 #KerberosAuthentication no 80 #KerberosOrLocalPasswd yes 81 #KerberosTicketCleanup yes 82 #KerberosGetAFSToken no 83 84 # GSSAPI options 85 #GSSAPIAuthentication no 86 #GSSAPICleanupCredentials yes 87 88 # Set this to 'yes' to enable PAM authentication, account processing, 89 # and session processing. If this is enabled, PAM authentication will 90 # be allowed through the ChallengeResponseAuthentication and 91 # PasswordAuthentication. Depending on your PAM configuration, 92 # PAM authentication via ChallengeResponseAuthentication may bypass 93 # the setting of "PermitRootLogin without-password". 94 # If you just want the PAM account and session checks to run without 95 # PAM authentication, then enable this but set PasswordAuthentication 96 # and ChallengeResponseAuthentication to 'no'. 97 #UsePAM no 98 99 #AllowAgentForwarding yes 100 #AllowTcpForwarding yes 101 #GatewayPorts no 102 #X11Forwarding no 103 #X11DisplayOffset 10 104 #X11UseLocalhost yes 105 #PermitTTY yes 106 #PrintMotd yes 107 #PrintLastLog yes 108 #TCPKeepAlive yes 109 #UseLogin no 110 UsePrivilegeSeparation sandbox # Default for new installations. 111 #PermitUserEnvironment no 112 #Compression delayed 113 #ClientAliveInterval 0 114 #ClientAliveCountMax 3 115 #UseDNS no 116 #PidFile /var/run/sshd.pid 117 #MaxStartups 10:30:100 118 #PermitTunnel no 119 #ChrootDirectory none 120 #VersionAddendum none 121 122 # no default banner path 123 #Banner none 124 125 # override default of no subsystems 126 Subsystem sftp /usr/libexec/sftp-server 127 128 # Example of overriding settings on a per-user basis 129 #Match User anoncvs 130 # X11Forwarding no 131 # AllowTcpForwarding no 132 # PermitTTY no 133 # ForceCommand cvs server 134
