Multiplex HTTPS, IMAP and SMTP on port 443#357
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hpk42
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| map $ssl_preread_alpn_protocols $proxy { | ||
| default 127.0.0.1:8443; | ||
| ~\bsmtp\b 127.0.0.1:465; | ||
| ~\bimap\b 127.0.0.1:993; |
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does this mean that establishing SSL is done by imap/postfix still?
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Yes, it is controlled by proxy_ssl which is off by default. Passing to plaintext port would not work, I think postfix and dovecot would not be happy about authentication before STARTTLS.
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| ~\bsmtp\b 127.0.0.1:465; | ||
| ~\bimap\b 127.0.0.1:993; |
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can we use the /etc/service names of "imaps" and "smtps" here? i'd prefer that.
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Services are distinguished based on ALPN.
For example,
openssl s_client -connect example.org:443 -alpn smtp
gives SMTP connection and
openssl s_client -connect example.org:443 -alpn imap
gives IMAP connection.
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Services are distinguished based on ALPN.
For example,
openssl s_client -connect example.org:443 -alpn smtp
gives SMTP connection and
openssl s_client -connect example.org:443 -alpn imap
gives IMAP connection.