571373e081
disable the debian/ubuntu package version from being sent to clients dkg pointed out to riseup that our ssh servers were revealing the package version to clients, which is controlled by the DebianBanner config option. It exists in both Debian and Ubuntu and defaults to 'yes', so we explicitly set it to 'no' in the templates for those distros. See merge request !17
132 lines
4.8 KiB
Text
132 lines
4.8 KiB
Text
# This file is managed by Puppet, all local modifications will be overwritten
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#
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# Package generated configuration file
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# See the sshd(8) manpage for details
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<% unless (s=scope.lookupvar('::sshd::head_additional_options')).empty? -%>
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<%= s %>
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<% end -%>
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# What ports, IPs and protocols we listen for
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<% scope.lookupvar('::sshd::ports').to_a.each do |port| -%>
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<% if port == 'off' -%>
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#Port -- disabled by puppet
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<% else -%>
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Port <%= port %>
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<% end -%>
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<% end -%>
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# Use these options to restrict which interfaces/protocols sshd will bind to
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<% scope.lookupvar('::sshd::listen_address').to_a.each do |address| -%>
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ListenAddress <%= address %>
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<% end -%>
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Protocol 2
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# HostKeys for protocol version 2
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<% scope.lookupvar('::sshd::hostkey_type').to_a.each do |hostkey_type| -%>
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HostKey /etc/ssh/ssh_host_<%=hostkey_type %>_key
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<% end -%>
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#Privilege Separation is turned on for security
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UsePrivilegeSeparation yes
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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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# Logging
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SyslogFacility AUTH
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LogLevel INFO
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# Authentication:
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LoginGraceTime 120
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PermitRootLogin <%= scope.lookupvar('::sshd::permit_root_login') %>
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StrictModes <%= scope.lookupvar('::sshd::strict_modes') %>
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RSAAuthentication <%= scope.lookupvar('::sshd::rsa_authentication') %>
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PubkeyAuthentication <%= scope.lookupvar('::sshd::pubkey_authentication') %>
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AuthorizedKeysFile <%= scope.lookupvar('::sshd::authorized_keys_file') %>
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# Don't read the user's ~/.rhosts and ~/.shosts files
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IgnoreRhosts <%= scope.lookupvar('::sshd::ignore_rhosts') %>
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# For this to work you will also need host keys in /etc/ssh_known_hosts
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RhostsRSAAuthentication <%= scope.lookupvar('::sshd::rhosts_rsa_authentication') %>
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# similar for protocol version 2
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HostbasedAuthentication <%= scope.lookupvar('::sshd::hostbased_authentication') %>
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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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# To enable empty passwords, change to yes (NOT RECOMMENDED)
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PermitEmptyPasswords <%= scope.lookupvar('::sshd::permit_empty_passwords') %>
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# Change to yes to enable challenge-response passwords (beware issues with
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# some PAM modules and threads)
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ChallengeResponseAuthentication <%= scope.lookupvar('::sshd::challenge_response_authentication') %>
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# To disable tunneled clear text passwords, change to no here!
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PasswordAuthentication <%= scope.lookupvar('::sshd::password_authentication') %>
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# Kerberos options
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KerberosAuthentication <%= scope.lookupvar('::sshd::kerberos_authentication') %>
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KerberosOrLocalPasswd <%= scope.lookupvar('::sshd::kerberos_orlocalpasswd') %>
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KerberosTicketCleanup <%= scope.lookupvar('::sshd::kerberos_ticketcleanup') %>
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# GSSAPI options
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GSSAPIAuthentication <%= scope.lookupvar('::sshd::gssapi_authentication') %>
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GSSAPICleanupCredentials <%= scope.lookupvar('::sshd::gssapi_cleanupcredentials') %>
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X11Forwarding <%= scope.lookupvar('::sshd::x11_forwarding') %>
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X11DisplayOffset 10
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PrintMotd <%= scope.lookupvar('::sshd::print_motd') %>
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PrintLastLog yes
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TCPKeepAlive yes
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#UseLogin no
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#MaxStartups 10:30:60
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#Banner /etc/issue.net
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# do not reveal debian version (default is yes)
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DebianBanner no
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# Allow client to pass locale environment variables
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AcceptEnv LANG LC_*
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Subsystem sftp <%= (s=scope.lookupvar('::sshd::sftp_subsystem')).empty? ? '/usr/lib/openssh/sftp-server' : s %>
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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 <%= scope.lookupvar('::sshd::use_pam') %>
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AllowTcpForwarding <%= scope.lookupvar('::sshd::tcp_forwarding') %>
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AllowAgentForwarding <%= scope.lookupvar('::sshd::agent_forwarding') %>
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<% unless (s=scope.lookupvar('::sshd::allowed_users')).empty? -%>
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AllowUsers <%= s %>
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<% end -%>
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<% unless (s=scope.lookupvar('::sshd::allowed_groups')).empty? -%>
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AllowGroups <%= s %>
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<%- end -%>
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<% if scope.lookupvar('::sshd::hardened') == 'yes' -%>
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<% if (scope.function_versioncmp([scope.lookupvar('::ssh_version'),'6.5'])) >= 0 -%>
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KexAlgorithms curve25519-sha256@libssh.org
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Ciphers chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes256-ctr
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MACs hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-ripemd160-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512,hmac-sha2-256,hmac-ripemd160,umac-128@openssh.com
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<% else -%>
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Ciphers aes256-ctr
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MACs hmac-sha2-512
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<% end -%>
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<% end -%>
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<% unless (s=scope.lookupvar('::sshd::tail_additional_options')).empty? -%>
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<%= s %>
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<% end -%>
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