1.5-rolling - Local domain not added to DHCP hostnames

[graystevens]

Hi all,

I’ve setup 1.5-rolling on a VM, and everything is working as expected so far (after understanding thing new firewall configuration options), except local DNS.

Every time a new DHCP lease is made, an entry is added to /etc/hosts as expect, however it is also the bare hostname (i.e. mbp) rather than being appended with the local domain I’ve configured (i.e. mbp.home.local).

I’m wondering if this is a quirk of the migration from ISC to Kea?

vyos@vyos:~$ show version
Version:          VyOS 1.5-rolling-202401010026
Release train:    current

Built by:         autobuild@vyos.net
Built on:         Mon 01 Jan 2024 01:51 UTC
Build UUID:       0d573c30-c595-424b-90d4-aa17c3108ac5
Build commit ID:  59e8817d2f4932

Architecture:     x86_64
Boot via:         installed image
System type:      KVM guest

Hardware vendor:  QEMU
Hardware model:   Standard PC (Q35 + ICH9, 2009)
Hardware S/N:
Hardware UUID:    xxxxxxxxxxxxxxxxxxx

Copyright:        VyOS maintainers and contributors

graham@mbp in ~
➜ dig @10.20.30.1 mbp.home.local

; <<>> DiG 9.10.6 <<>> @10.20.30.1 mbp.home.local
; (1 server found)
;; global options: +cmd
;; Got answer:
;; WARNING: .local is reserved for Multicast DNS
;; You are currently testing what happens when an mDNS query is leaked to DNS
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 60918
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;mbp.home.local.			IN	A

;; Query time: 1691 msec
;; SERVER: 10.20.30.1#53(10.20.30.1)
;; WHEN: Wed Jan 03 16:39:48 GMT 2024
;; MSG SIZE  rcvd: 43


graham@mbp in ~
➜ dig @10.20.30.1 mbp

; <<>> DiG 9.10.6 <<>> @10.20.30.1 mbp
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 56708
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;mbp.				IN	A

;; ANSWER SECTION:
mbp.			86400	IN	A	10.20.30.100

;; Query time: 69 msec
;; SERVER: 10.20.30.1#53(10.20.30.1)
;; WHEN: Wed Jan 03 16:39:50 GMT 2024
;; MSG SIZE  rcvd: 48

[sarthurdev]

It is indeed a known issue since moving to Kea in 1.5. We’re looking into how to resolve it.

[edan]

I had the same issue, and I I confirm it was fixed in a newer 1.5. I think it was 1.5-rolling-202401130024.