126 lines
4.4 KiB
Django/Jinja
126 lines
4.4 KiB
Django/Jinja
# {{ansible_managed|comment}}
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# This is the ssh client system-wide configuration file.
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# See ssh_config(5) for more information on any settings used. Comments will be added only to clarify why a configuration was chosen.
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{% if ssh_custom_options -%}
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# Custom configuration that overwrites default configuration
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# ==========================================================
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{% for line in ssh_custom_options %}
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{{ line }}
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{% endfor %}
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{% endif %}
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# Basic configuration
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# ===================
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# Address family should always be limited to the active network configuration.
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AddressFamily {{ 'any' if network_ipv6_enable else 'inet' }}
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{% for host in ssh_remote_hosts -%}
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{% if loop.first %}
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# Host-specific configuration
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{% endif %}
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Host {{ host.names | join(' ') }}
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{{ host.options | join("\n") | indent(2) }}
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{% endfor -%}
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# Global defaults for all Hosts
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Host *
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# The port at the destination should be defined
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Port {{ ssh_client_port }}
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# Identity file configuration. You may restrict available identity files. Otherwise ssh will search for a pattern and use any that matches.
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#IdentityFile ~/.ssh/identity
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#IdentityFile ~/.ssh/id_rsa
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#IdentityFile ~/.ssh/id_dsa
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# Security configuration
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# ======================
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# Set the protocol version to 2 for security reasons. Disables legacy support.
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Protocol 2
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# Make sure passphrase querying is enabled
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BatchMode no
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# Prevent IP spoofing by checking to host IP against the `known_hosts` file.
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CheckHostIP yes
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# Always ask before adding keys to the `known_hosts` file. Do not set to `yes`.
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StrictHostKeyChecking ask
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# **Ciphers** -- If your clients don't support CTR (eg older versions), cbc will be added
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# CBC: is true if you want to connect with OpenSSL-base libraries
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# eg ruby Net::SSH::Transport::CipherFactory requires cbc-versions of the given openssh ciphers to work
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# -- see: (http://net-ssh.github.com/net-ssh/classes/Net/SSH/Transport/CipherFactory.html)
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#
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{# This outputs "Ciphers <list-of-ciphers>" if ssh_ciphers is defined or "#Ciphers" if ssh_ciphers is undefined #}
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{{ "Ciphers "+ssh_ciphers| join(',') if ssh_ciphers else "Ciphers"|comment }}
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# **Hash algorithms** -- Make sure not to use SHA1 for hashing, unless it is really necessary.
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# Weak HMAC is sometimes required if older package versions are used
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# eg Ruby's Net::SSH at around 2.2.* doesn't support sha2 for hmac, so this will have to be set true in this case.
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#
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{# This outputs "MACs <list-of-macs>" if ssh_macs is defined or "#MACs" if ssh_macs is undefined #}
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{{ "MACs "+ssh_macs| join(',') if ssh_macs else "MACs"|comment }}
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# Alternative setting, if OpenSSH version is below v5.9
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#MACs hmac-ripemd160
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# **Key Exchange Algorithms** -- Make sure not to use SHA1 for kex, unless it is really necessary
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# Weak kex is sometimes required if older package versions are used
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# eg ruby's Net::SSH at around 2.2.* doesn't support sha2 for kex, so this will have to be set true in this case.
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# based on: https://bettercrypto.org/static/applied-crypto-hardening.pdf
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{# This outputs "KexAlgorithms <list-of-algos>" if ssh_kex is defined or "#KexAlgorithms" if ssh_kex is undefined #}
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{{ "KexAlgorithms "+ssh_kex| join(',') if ssh_kex else "KexAlgorithms"|comment }}
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# Disable agent forwarding, since local agent could be accessed through forwarded connection.
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ForwardAgent no
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# Disable X11 forwarding, since local X11 display could be accessed through forwarded connection.
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ForwardX11 no
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# Never use host-based authentication. It can be exploited.
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HostbasedAuthentication no
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{% if sshd_version is version('7.6', '<') %}
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RhostsRSAAuthentication no
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# Enable RSA authentication via identity files.
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RSAAuthentication yes
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{% endif %}
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# Disable password-based authentication, it can allow for potentially easier brute-force attacks.
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PasswordAuthentication {{ 'yes' if ssh_client_password_login else 'no' }}
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# Only use GSSAPIAuthentication if implemented on the network.
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GSSAPIAuthentication no
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GSSAPIDelegateCredentials no
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# Disable tunneling
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Tunnel no
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# Disable local command execution.
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PermitLocalCommand no
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# Misc. configuration
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# ===================
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# Enable compression. More pressure on the CPU, less on the network.
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Compression yes
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#EscapeChar ~
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#VisualHostKey yes
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{% if sshd_version is version('7.1', '<=') %}
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# Disable experimental client roaming. This is known to cause potential issues with secrets being disclosed to malicious servers and defaults to being disabled.
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UseRoaming {{ 'yes' if ssh_client_roaming else 'no' }}
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{% endif %}
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