A difference in behaviour that I have noticed between dropbear (on OpenWRT) and openssh (on CentOS 7) is that if I start a long running command from a client configured to use Control* muxing that writes output to stdout, when I stop the client, the long running command doesn't get a SIGPIPE. Without the Control* muxing, the long running process will get a SIGPIPE.
This works as expected (i.e. the long running process gets a SIGPIPE) on the CentOS 7/openssh server even when it is using Control* muxing. Thoughts? Cheers, b.
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