256 lines
8.5 KiB
Plaintext
256 lines
8.5 KiB
Plaintext
# Package generated configuration file
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# See the sshd_config(5) manpage for details
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#-----------------------------
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# Daemon
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#-----------------------------
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# What ports, IPs and protocols we listen for
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Port 22
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# Use these options to restrict which interfaces/protocols sshd will bind to
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#ListenAddress ::
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#ListenAddress 0.0.0.0
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#ListenAddress 176.9.117.77
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# Specifies the protocol versions sshd(8) supports.
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# The possible values are ‘1’ , `2' and ‘1,2’.
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# The default is ‘2’.
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Protocol 2
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# HostKeys for protocol version 2
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HostKey /etc/ssh/ssh_host_rsa_key
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HostKey /etc/ssh/ssh_host_ecdsa_key
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HostKey /etc/ssh/ssh_host_ed25519_key
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# Lifetime and size of ephemeral version 1 server key
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KeyRegenerationInterval 3600
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ServerKeyBits 768
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# Specifies the maximum number of concurrent unauthenticated connections
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# to the SSH daemon. See sshd_config(5) for specifiing the three colon
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# separated values.
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# The default is 10.
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#MaxStartups 10:30:100
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#MaxStartups 3
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MaxStartups 10:30:100
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# Specifies the maximum number of authentication attempts permitted per
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# connection.
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# The default is 6.
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MaxAuthTries 3
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# Specifies the maximum number of open sessions permitted per network
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# connection.
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# The default is 10.
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MaxSessions 10
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#-----------------------------
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# Authentication
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#-----------------------------
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# Specifies whether sshd(8) separates privileges by creating an unprivileged
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# child process to deal with incoming network traffic.
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# The default is "yes" (for security).
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UsePrivilegeSeparation yes
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# The server disconnects after this time if the user has not
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# successfully logged in.
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# The default is 120 seconds.
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LoginGraceTime 120
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# Specifies whether root can log in using ssh(1).
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# The default is "yes".
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#PermitRootLogin yes
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PermitRootLogin without-password
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#PermitRootLogin no
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# Specifies whether sshd(8) should check file modes and ownership of the
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# user's files and home directory before accepting login. This is normally
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# desirable because novices sometimes accidentally leave their directory or
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# files world-writable. Note that this does not apply to ChrootDirectory,
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# whose permissions and ownership are checked unconditionally.
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# The default is “yes”.
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StrictModes yes
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# Specifies whether pure RSA authentication is allowed. This option
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# applies to protocol version 1 only.
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# The default is “yes”.
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RSAAuthentication yes
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# Specifies whether public key authentication is allowed. Note that this
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# option applies to protocol version 2 only.
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# The default is “yes”.
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PubkeyAuthentication yes
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# Specifies the file that contains the public keys that can be used for
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# user authentication. The format is described in the AUTHORIZED_KEYS FILE
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# FORMAT section of sshd(8).
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# AuthorizedKeysFile may contain tokens of the form %T which are substituted
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# during connection setup. The following tokens are defined: %% is replaced
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# by a literal '%', %h is replaced by the home directory of the user being
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# authenticated, and %u is replaced by the username of that user. After
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# expansion, AuthorizedKeysFile is taken to be an absolute path or one relative
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# to the user's home directory. Multiple files may be listed, separated by
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# whitespace.
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# The default is “.ssh/authorized_keys .ssh/authorized_keys2”.
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#AuthorizedKeysFile %h/.ssh/authorized_keys
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# Specifies whether password authentication is allowed.
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# Change to no to disable tunnelled clear text passwords
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# The default is "yes".
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#PasswordAuthentication yes
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PasswordAuthentication no
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# When password authentication is allowed, it specifies whether the
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# server allows login to accounts with empty password strings.
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# The default is “no”.
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PermitEmptyPasswords no
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# Specifies whether challenge-response authentication is allowed (e.g. via PAM).
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# The default is “yes”.
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ChallengeResponseAuthentication no
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# Don't read the user's ~/.rhosts and ~/.shosts files
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IgnoreRhosts yes
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# For this to work you will also need host keys in /etc/ssh_known_hosts
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RhostsRSAAuthentication no
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# similar for protocol version 2
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HostbasedAuthentication no
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# Specifies whether sshd(8) should ignore the user's ~/.ssh/known_hosts
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# during RhostsRSAAuthentication or HostbasedAuthentication.
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# The default is “no”.
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# Uncomment if you don't trust ~/.ssh/known_hosts for RhostsRSAAuthentication
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#IgnoreUserKnownHosts yes
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# If specified, login is allowed only for user names that match one of
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# the patterns.
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# The allow/deny directives are processed in the following order: DenyUsers,
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# AllowUsers, DenyGroups, and finally AllowGroups.
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# By default, login is allowed for all users.
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#AllowUsers chris cityslang sysadm
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# Set this to 'yes' to enable PAM authentication, account processing,
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# and session processing. If this is enabled, PAM authentication will
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# be allowed through the ChallengeResponseAuthentication and
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# PasswordAuthentication. Depending on your PAM configuration,
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# PAM authentication via ChallengeResponseAuthentication may bypass
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# the setting of "PermitRootLogin without-password".
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# If you just want the PAM account and session checks to run without
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# PAM authentication, then enable this but set PasswordAuthentication
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# and ChallengeResponseAuthentication to 'no'.
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UsePAM yes
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# Specifies whether login(1) is used for interactive login sessions.
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# Note that login(1) is never used for remote command execution.
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# Note also, that if this is enabled, X11Forwarding will be disabled
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# because login(1) does not know how to handle xauth(1) cookies. If
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# UsePrivilegeSeparation is specified, it will be disabled after
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# authentication.
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# The default is “no”.
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#UseLogin no
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#-----------------------------
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# Logging
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#-----------------------------
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# Gives the facility code that is used when logging messages from sshd(8).
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# The possible values are: DAEMON, USER, AUTH, LOCAL0, LOCAL1, LOCAL2,
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# LOCAL3, LOCAL4, LOCAL5, LOCAL6, LOCAL7.
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# The default is AUTH.
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SyslogFacility AUTH
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# Gives the verbosity level that is used when logging messages from
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# sshd(8).
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# The default is INFO.
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LogLevel INFO
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#-----------------------------
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# Behavior
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#-----------------------------
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# Specifies whether the distribution-specified extra version suffix is included
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# during initial protocol handshake.
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# The default is "yes".
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DebianBanner no
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# The contents of the specified file are sent to the remote user before
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# authentication is allowed.
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# By default, no banner is displayed.
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#Banner /etc/issue.net
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# Specifies whether sshd(8) should print /etc/motd when a user logs in
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# interactively. (On some systems it is also printed by the shell,
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# /etc/profile, or equivalent.)
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# The default is “yes”.
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PrintMotd no
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# Specifies what environment variables sent by the client will be copied
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# into the session's environ(7).
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# The default is not to accept any environment variables.
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AcceptEnv LANG LC_*
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# Configures an external subsystem (e.g. file transfer daemon).
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# By default no subsystems are defined.
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Subsystem sftp /usr/lib/openssh/sftp-server
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# Specifies whether sshd(8) should look up the remote host name and check
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# that the resolved host name for the remote IP address maps back to the
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# very same IP address.
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# The default is “yes”.
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UseDNS no
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# Specifies whether X11 forwarding is permitted. The argument must be
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# “yes” or “no”. See sshd_config(5) for further expalnation
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# The default is “no”.
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#X11Forwarding yes
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# Specifies the first display number available for sshd(8)'s X11
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# forwarding. This prevents sshd from interfering with real X11 servers.
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# The default is 10.
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X11DisplayOffset 10
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# Specifies whether the system should send TCP keepalive messages to the
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# other side. If they are sent, death of the connection or crash of one
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# of the machines will be properly noticed. However, this means
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# that connections will die if the route is down temporarily, and some
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# people find it annoying. On the other hand, if TCP keepalives are not
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# sent, sessions may hang indefinitely on the server, leaving “ghost” users
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# and consuming server resources.
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#
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# The default is “yes” (to send TCP keepalive messages), and the server
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# will notice if the network goes down or the client host crashes. This
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# avoids infinitely hanging sessions.
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TCPKeepAlive yes
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#Specifies whether sshd(8) should print the date and time of the last
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# user login when a user logs in interactively.
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# The default is “yes”.
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PrintLastLog yes
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#-----------------------------
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# Kerberos options
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#-----------------------------
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#KerberosAuthentication no
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#KerberosGetAFSToken no
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#KerberosOrLocalPasswd yes
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#KerberosTicketCleanup yes
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#-----------------------------
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# GSSAPI options
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#-----------------------------
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#GSSAPIAuthentication no
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#GSSAPICleanupCredentials yes
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