[Samba] replication fails

[Rowland Penny]

On Wed, 13 Mar 2019 12:28:08 +0100
"Stefan G. Weichinger via samba" <samba at lists.samba.org> wrote:

> Am 13.03.19 um 11:55 schrieb L.P.H. van Belle via samba:
> > Hai, 
> > 
> > Ok, so the reboot changed your resolv.conf 
> > check the timestamp of /etc/resolv.confs
> > Write this down. 
> >   
> >> So I assume it should point to the own IPv4-IP of DC1 itself, 
> >> which is .205  
> > Yes correct. 
> > After that reboot the server. 
> > Check the timestamp again and/or did it change? 
> > 
> > Now the hunt for the resolv.conf change. 
> > 
> > cat /etc/network/interfaces
> > If you have dns-nameserver these are picked up with
> > systemd-resolved. Or by package: resolvconf 
> > 
> > Run these: 
> > networkctl status
> > systemd-resolve --status
> > 
> > Show the output. 
> > 
> > Other options: 
> > Server with dhcp ip? 
> > echo 'make_resolv_conf() { :; }'
> > > /etc/dhcp/dhclient-enter-hooks.d/leave_my_resolv_conf_alone chmod
> > > 755 /etc/dhcp/dhclient-enter-hooks.d/leave_my_resolv_conf_alone
> > 
> > Or edit /etc/dhcp/dhclient.conf 
> > supersede domain-name "example.com";
> > supersede domain-search "example.com";
> > supersede domain-name-servers 127.0.0.1;
> > 
> > 
> > One of above is your fix. ;-) 
> > A last resort fix is : 
> > rm -f /etc/resolv.conf
> > editor /etc/resolv.conf
> > chattr +i /etc/resolv.conf
> > 
> > But i dont like that, its up2you.   
> 
> I have a specific idea where that comes from and stopped/disabled
> systemd-resolved now.
> 
> No DHCP.
> 
> manual replicate seems to time out (no error, no success ...)
> 
> I reboot DC2 now for a test.
> 
> Should /etc/hosts contain pointers to own FQDN or not? To DCs?
> 

/etc/hosts should contain a line that points 127.0.0.1 to localhost and
a line that points the DC's ipaddress to its FQDN and shorthostname

EXAMPLE:

127.0.0.1 localhost
192.168.0.6 dc4.samdom.example.com dc4

There will probably be ipv6 lines as well, anything else isn't really
needed, but I suppose you could add any other DC's info.

Rowland