[sane-devel] IPV6 Only?

[Louis Lagendijk]

On Wed, 2020-07-08 at 08:08 +0200, Simon Matter via sane-devel wrote:
> > Just installed saned to a raspberry pi running centos.  When I
> > first
> > started saned.socket it failed with "saned.socket failed to listen
> > on
> > sockets: Address family not supported by protocol".
> > 
> > Huh?
> > 
> > Turns out it will only start in IPV6 and I have that disabled in
> > the
> > kernel. (sysctl)  When I enabled IPV6 the daemon started fine... 
> > but
> > only on IPV6. 
> > 
> > And it's disobeying my directive in net.conf to only listen on
> > localhost, instead listening on *.
> > 
> > systemd   1   root   43u  IPv6  12327      0t0  TCP *:6566 (LISTEN)
> > 
> > Name        : sane-backends
> > Version     : 1.0.24
> > Release     : 12.el7
> > Architecture: armv7hl
> > 
> > What am I doing wrong?
> 
> You are using systemd :-)
> 
> What you see listening is not saned but systemd, that's why it
> doesn't
> obey to what you have configured in net.conf.
> 
> I guess you have to fiddle with the systemd config now.
> 
> Regards,
> Simon
> 
Should be simple: change the ListenStream line in the sample socket
file as described in the man-page for saned to:
ListenStream=<address>:6566

that should do the trick
/Louis