[tor-relays] failed setup of obfs4 on relay

[jackoreamnos at tutanota.com]

Am a novice compiling Tor (0.3.2.9) and been successful using this from a Tor Browser as a private bridge by entering "a.b.c.d:9001" into Tor Browser.  However, pointing my Tor Browser to the obfs4 on the same machine fails with something like General SOCKS failure in the log.  Below is my torrc:

SOCKSPort 0
CookieAuthentication 1
ControlPort 9051
ORPort 9001
ExtORPort auto
ServerTransportPlugin obfs4 exec /usr/bin/obfs4proxy
# ServerTransportListenAddr obfs4 [::]:60443
ServerTransportListenAddr obfs4 0.0.0.0:60443
ExitRelay 0
BridgeRelay 1
PublishServerDescriptor 0

Tests I have done:
(1) using obfs4 compiled from git repository, as well as the OS package.
(2) opening port 60443, as well as dropping all firewalls - does not make a difference; meanwhile, pointing telnet at a.b.c.d 60443 connects successfully
(3) using Tor Browser with default supplied obfs4 bridges works well (log shows I was able to download a list of bridges and their fingerprints).

So I think I have ruled out problems with my Tor client (Tor Browser), and I have ruled out firewall configurations on the server, and ruled out obfs4 being blocked on my ISP.  Since Tor itself works, and I have tried obfs4 from source as well as from the OS package, the only thing I can think of is something wrong with the config above.

Any hints would be appreciated, as well as any steps I can do to further diagnose would be helpful.

Thanks,
Jack
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