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75 lines
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75 lines
3.0 KiB
Plaintext
##
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## SSL settings
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##
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# SSL/TLS support: yes, no, required. <doc/wiki/SSL.txt>
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ssl = required
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# PEM encoded X.509 SSL/TLS certificate and private key. They're opened before
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# dropping root privileges, so keep the key file unreadable by anyone but
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# root. Included doc/mkcert.sh can be used to easily generate self-signed
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# certificate, just make sure to update the domains in dovecot-openssl.cnf
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ssl_cert = </cert/tls.crt
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ssl_key = </cert/tls.key
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# If key file is password protected, give the password here. Alternatively
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# give it when starting dovecot with -p parameter. Since this file is often
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# world-readable, you may want to place this setting instead to a different
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# root owned 0600 file by using ssl_key_password = <path.
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#ssl_key_password =
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# PEM encoded trusted certificate authority. Set this only if you intend to use
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# ssl_verify_client_cert=yes. The file should contain the CA certificate(s)
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# followed by the matching CRL(s). (e.g. ssl_ca = </etc/ssl/certs/ca.pem)
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#ssl_ca =
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# Require that CRL check succeeds for client certificates.
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#ssl_require_crl = yes
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# Directory and/or file for trusted SSL CA certificates. These are used only
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# when Dovecot needs to act as an SSL client (e.g. imapc backend or
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# submission service). The directory is usually /etc/ssl/certs in
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# Debian-based systems and the file is /etc/pki/tls/cert.pem in
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# RedHat-based systems.
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#ssl_client_ca_dir = /etc/ssl/certs
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ssl_client_ca_file = /cert/ca.crt
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# Request client to send a certificate. If you also want to require it, set
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# auth_ssl_require_client_cert=yes in auth section.
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#ssl_verify_client_cert = no
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# Which field from certificate to use for username. commonName and
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# x500UniqueIdentifier are the usual choices. You'll also need to set
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# auth_ssl_username_from_cert=yes.
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#ssl_cert_username_field = commonName
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# SSL DH parameters
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# Generate new params with `openssl dhparam -out /etc/dovecot/dh.pem 4096`
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# Or migrate from old ssl-parameters.dat file with the command dovecot
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# gives on startup when ssl_dh is unset.
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ssl_dh = </data/dh.pem
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# Minimum SSL protocol version to use. Potentially recognized values are SSLv3,
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# TLSv1, TLSv1.1, and TLSv1.2, depending on the OpenSSL version used.
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#ssl_min_protocol = TLSv1
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# SSL ciphers to use, the default is:
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#ssl_cipher_list = ALL:!kRSA:!SRP:!kDHd:!DSS:!aNULL:!eNULL:!EXPORT:!DES:!3DES:!MD5:!PSK:!RC4:!ADH:!LOW@STRENGTH
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# To disable non-EC DH, use:
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#ssl_cipher_list = ALL:!DH:!kRSA:!SRP:!kDHd:!DSS:!aNULL:!eNULL:!EXPORT:!DES:!3DES:!MD5:!PSK:!RC4:!ADH:!LOW@STRENGTH
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# Colon separated list of elliptic curves to use. Empty value (the default)
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# means use the defaults from the SSL library. P-521:P-384:P-256 would be an
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# example of a valid value.
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#ssl_curve_list =
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# Prefer the server's order of ciphers over client's.
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#ssl_prefer_server_ciphers = no
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# SSL crypto device to use, for valid values run "openssl engine"
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#ssl_crypto_device =
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# SSL extra options. Currently supported options are:
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# compression - Enable compression.
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# no_ticket - Disable SSL session tickets.
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#ssl_options = |