>Synopsis: relayd will not launch when listener host is a CNAME
>Category: user
>Environment:
System : OpenBSD 6.6
Details : OpenBSD 6.6 (GENERIC.MP) #3: Thu Nov 21 03:20:01 MST 2019
[email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
Architecture: OpenBSD.amd64
Machine : amd64
>Description:
DNS of host listener:
www.seaturtle.pw. 338 IN CNAME seaturtle.pw.
seaturtle.pw. 338 IN A 73.12.116.18
Error thrown by `relayd -n`
host_dns: www.seaturtle.pw resolves to more than 1 hosts
/etc/relayd.conf:29: relay www.seaturtle.pw:http or listener
defined twice
Relayd does not launch. This is a regression from 6.4 to 6.6 (I
have not checked 6.5). This happens with all listen addresses I
have which are aliases to a different name, but not with the
apex of this domain (which is obviously not a CNAME).
>How-To-Repeat:
Have DNS as in description, with this as the relayd config:
relay "www.seaturtle.pw" {
listen on "www.seaturtle.pw" port 80
forward to $pewserv4 port 80
}
relayd fails to launch.
>Fix:
Workaround: don't use CNAME records. It should be fairly obvious
why this is undesirable.
