rsync: support rsync-ssl connections too#203
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jbkempf merged 1 commit intovideolabs:masterfrom Sep 10, 2025
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rsync provides a rsync-ssl script which tries to communicate over tls, on port 874 instead of 873, if it finds openssl/gnutls/stunnel. In theory we could add a separate cli option for this since there is no official URL scheme for rsync+tls, but to keep things simple for everyone just allow rsyncs:// in rsync URLs. In case a URL is starting with rsyncs:// we will use rsync-ssl instead of rsync, and rewrite the url back to rsync://. For testing, here are two public servers that support TLS: * rsync-ssl rsync://mirrors.dotsrc.org * rsync-ssl rsync://repo.msys2.org Using "--contimeout" with rsync-ssl leads to: "The --contimeout option may only be used when connecting to an rsync daemon." From my testing "--timeout" aborts though if openssl takes too long to connect, suggesting that it covers both connection and i/o in this scenario. Bump the --timeout to 60 so the upper bound is the same as without openssl.
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Looks neat, it's a nice addition! |
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Thanks! I forgot that I had already created an issue for this -> #176 |
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rsync provides a rsync-ssl script which tries to communicate over tls, on port 874 instead of 873, if it finds openssl/gnutls/stunnel.
In theory we could add a separate cli option for this since there is no official URL scheme for rsync+tls, but to keep things simple for everyone just allow rsyncs:// in rsync URLs.
In case a URL is starting with rsyncs:// we will use rsync-ssl instead of rsync, and rewrite the url back to rsync://.
For testing, here are two public servers that support TLS:
Using "--contimeout" with rsync-ssl leads to:
"The --contimeout option may only be used when connecting to an rsync daemon."
From my testing "--timeout" aborts though if openssl takes too long to connect, suggesting that it covers both connection and i/o in this scenario. Bump the --timeout to 60 so the upper bound is the same as without openssl.