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      1 #	$NetBSD: sshd_config,v 1.30 2026/06/30 04:13:47 riastradh Exp $
      2 #	$OpenBSD: sshd_config,v 1.105 2024/12/03 14:12:47 dtucker Exp $
      3 
      4 # This is the sshd server system-wide configuration file.  See
      5 # sshd_config(5) for more information.
      6 
      7 # The strategy used for options in the default sshd_config shipped with
      8 # OpenSSH is to specify options with their default value where
      9 # possible, but leave them commented.  Uncommented options override the
     10 # default value.
     11 
     12 #Port 22
     13 #AddressFamily any
     14 #ListenAddress 0.0.0.0
     15 #ListenAddress ::
     16 
     17 #HostKey /etc/ssh/ssh_host_rsa_key
     18 #HostKey /etc/ssh/ssh_host_ecdsa_key
     19 #HostKey /etc/ssh/ssh_host_ed25519_key
     20 
     21 # Ciphers and keying
     22 #RekeyLimit default none
     23 
     24 # Logging
     25 #SyslogFacility AUTH
     26 #LogLevel INFO
     27 
     28 # Authentication:
     29 
     30 # For slow CPUs, bumped from 2 minutes to 10
     31 LoginGraceTime 600
     32 #PermitRootLogin prohibit-password
     33 #StrictModes yes
     34 #MaxAuthTries 6
     35 #MaxSessions 10
     36 
     37 #PubkeyAuthentication yes
     38 
     39 # The default is to check both .ssh/authorized_keys and .ssh/authorized_keys2
     40 # but this is overridden so installations will only check .ssh/authorized_keys
     41 AuthorizedKeysFile	.ssh/authorized_keys
     42 
     43 #AuthorizedPrincipalsFile none
     44 
     45 #AuthorizedKeysCommand none
     46 #AuthorizedKeysCommandUser nobody
     47 
     48 # For this to work you will also need host keys in /etc/ssh/ssh_known_hosts
     49 #HostbasedAuthentication no
     50 # Change to yes if you don't trust ~/.ssh/known_hosts for
     51 # HostbasedAuthentication
     52 #IgnoreUserKnownHosts no
     53 # Don't read the user's ~/.rhosts and ~/.shosts files
     54 #IgnoreRhosts yes
     55 
     56 # To disable password authentication, you must BOTH
     57 # (a) set PasswordAuthentication to "no", AND
     58 # (b) set KbdInteractiveAuthentication to "no", or set UsePAM to "no",
     59 #     or disable all password-based auth modules in /etc/pam.d/sshd.
     60 # Alternatively, you can configure AuthenticationMethods with a
     61 # specific list of methods excluding "password" and
     62 # "keyboard-interactive".
     63 #PasswordAuthentication yes
     64 #PermitEmptyPasswords no
     65 
     66 # Change to "no" to disable keyboard-interactive authentication.  Depending on
     67 # the system's configuration, this may involve passwords, challenge-response,
     68 # one-time passwords or some combination of these and other methods.
     69 #KbdInteractiveAuthentication yes
     70 
     71 # Kerberos options
     72 #KerberosAuthentication no
     73 #KerberosOrLocalPasswd yes
     74 #KerberosTicketCleanup yes
     75 #KerberosGetAFSToken no
     76 
     77 # GSSAPI options
     78 #GSSAPIAuthentication no
     79 #GSSAPICleanupCredentials yes
     80 
     81 # Set this to 'yes' to enable PAM authentication, account processing,
     82 # and session processing. If this is enabled, PAM authentication will
     83 # be allowed through the KbdInteractiveAuthentication and
     84 # PasswordAuthentication settings.  Depending on your PAM configuration,
     85 # PAM authentication via KbdInteractiveAuthentication may bypass
     86 # the setting of "PermitRootLogin without-password".
     87 # If you just want the PAM account and session checks to run without
     88 # PAM authentication, then enable this but set PasswordAuthentication
     89 # and KbdInteractiveAuthentication to 'no'.
     90 UsePAM yes
     91 
     92 #AllowAgentForwarding yes
     93 #AllowTcpForwarding yes
     94 #GatewayPorts no
     95 #X11Forwarding no
     96 # If you use xorg from pkgsrc then uncomment the following line.
     97 #XAuthLocation /usr/pkg/bin/xauth
     98 #X11DisplayOffset 10
     99 #X11UseLocalhost yes
    100 #PermitTTY yes
    101 #PrintMotd yes
    102 #PrintLastLog yes
    103 #TCPKeepAlive yes
    104 #PermitUserEnvironment no
    105 #Compression delayed
    106 #ClientAliveInterval 0
    107 #ClientAliveCountMax 3
    108 #UseDNS no
    109 #PidFile /var/run/sshd.pid
    110 #MaxStartups 10:30:100
    111 #PermitTunnel no
    112 #ChrootDirectory none
    113 #VersionAddendum none
    114 
    115 # no default banner path
    116 #Banner none
    117 
    118 # here are the new patched ldap related tokens
    119 # entries in your LDAP must have posixAccount & ldapPublicKey objectclass
    120 #UseLPK yes
    121 #LpkLdapConf /etc/ldap.conf
    122 #LpkServers  ldap://10.1.7.1/ ldap://10.1.7.2/
    123 #LpkUserDN   ou=users,dc=phear,dc=org
    124 #LpkGroupDN  ou=groups,dc=phear,dc=org
    125 #LpkBindDN cn=Manager,dc=phear,dc=org
    126 #LpkBindPw secret
    127 #LpkServerGroup mail
    128 #LpkFilter (hostAccess=master.phear.org)
    129 #LpkForceTLS no
    130 #LpkSearchTimelimit 3
    131 #LpkBindTimelimit 3
    132 #LpkPubKeyAttr sshPublicKey
    133 
    134 # override default of no subsystems
    135 Subsystem	sftp	/usr/libexec/sftp-server
    136 
    137 # the following are HPN related configuration options
    138 # tcp receive buffer polling. disable in non autotuning kernels
    139 #TcpRcvBufPoll yes
    140 
    141 # allow the use of the none cipher
    142 #NoneEnabled no
    143 
    144 # disable hpn performance boosts.
    145 HPNDisabled yes
    146 
    147 # buffer size for hpn to non-hpn connections
    148 #HPNBufferSize 2048
    149 
    150 # Example of overriding settings on a per-user basis
    151 #Match User anoncvs
    152 #	X11Forwarding no
    153 #	AllowTcpForwarding no
    154 #	PermitTTY no
    155 #	ForceCommand cvs server
    156