Hi,

On 24 Jun 2019, at 02:49, tschador@posteo.de wrote:

On 2019-06-23 14:32, teor wrote:

...

But your relay needs a DirPort to be a fallback directory mirror. Here are some instructions for different platforms: https://trac.torproject.org/projects/tor/wiki/TorRelayGuide#Platformspecific...

This should be clarified in the Tor manual [1] too!

"Tor will contact the authority at ipv4address to download directory documents. The provided port value is a dirport; clients ignore this in favor of the specified "orport=" value. If an IPv6 ORPort is supplied, Tor will also download directory documents at the IPv6 ORPort."

Am I right that for fallback directory mirrors DirPort is needed but ignored by clients?

It is needed to make sure that the relay serves directory documents. We run a script that uses the DirPort to check the download speed.

Possibly this explains why I lost the fallback directory flag since I have removed the DirPort in torrc …

Fallbacks need the same ports, IP addresses, and keys for 2 years. That includes the DirPort.

It's not possible to configure a fallback without a dirport:

FallbackDir ipv4address:port orport=port id=fingerprint [weight=num] [ipv6=[ipv6address]:orport]

(The first port is a dirport, and both dirport and orport are required.)

I have updated the template: https://trac.torproject.org/projects/tor/wiki/doc/UpdatingFallbackDirectoryM...

And opened a ticket for the man page: https://trac.torproject.org/projects/tor/ticket/30955

T