Install script does not work on Digital Ocean Debian 12 image

[ilium007]

Installed on fresh Digital Ocean Debian 12 image but systemd-resolve is already running by default.

• CLI Version: nextdns version 1.41.0

• Platform: Debian 12

root@debian-s-1vcpu-512mb-10gb-syd1-01:~# nextdns log
Dec 14 23:58:38 debian-s-1vcpu-512mb-10gb-syd1-01 systemd[1]: Started nextdns.service - NextDNS DNS53 to DoH proxy..
Dec 14 23:58:38 debian-s-1vcpu-512mb-10gb-syd1-01 nextdns[1295]: Starting NextDNS 1.41.0/linux on localhost:53
Dec 14 23:58:38 debian-s-1vcpu-512mb-10gb-syd1-01 nextdns[1295]: Listening on TCP/[::1]:53
Dec 14 23:58:38 debian-s-1vcpu-512mb-10gb-syd1-01 nextdns[1295]: Listening on UDP/127.0.0.1:53
Dec 14 23:58:38 debian-s-1vcpu-512mb-10gb-syd1-01 nextdns[1295]: Listening on TCP/127.0.0.1:53
Dec 14 23:58:38 debian-s-1vcpu-512mb-10gb-syd1-01 nextdns[1295]: Listening on UDP/[::1]:53
Dec 15 00:00:12 debian-s-1vcpu-512mb-10gb-syd1-01 systemd[1]: Stopping nextdns.service - NextDNS DNS53 to DoH proxy....
Dec 15 00:00:12 debian-s-1vcpu-512mb-10gb-syd1-01 nextdns[1295]: Received signal: terminated
Dec 15 00:00:12 debian-s-1vcpu-512mb-10gb-syd1-01 nextdns[1295]: Stopping NextDNS 1.41.0/linux
Dec 15 00:00:12 debian-s-1vcpu-512mb-10gb-syd1-01 nextdns[1295]: NextDNS 1.41.0/linux stopped
Dec 15 00:00:12 debian-s-1vcpu-512mb-10gb-syd1-01 systemd[1]: nextdns.service: Deactivated successfully.
Dec 15 00:00:12 debian-s-1vcpu-512mb-10gb-syd1-01 systemd[1]: Stopped nextdns.service - NextDNS DNS53 to DoH proxy..
Dec 15 00:00:13 debian-s-1vcpu-512mb-10gb-syd1-01 systemd[1]: Started nextdns.service - NextDNS DNS53 to DoH proxy..
Dec 15 00:00:13 debian-s-1vcpu-512mb-10gb-syd1-01 nextdns[1484]: Starting NextDNS 1.41.0/linux on :53
Dec 15 00:00:13 debian-s-1vcpu-512mb-10gb-syd1-01 nextdns[1484]: Listening on TCP/:53
Dec 15 00:00:13 debian-s-1vcpu-512mb-10gb-syd1-01 nextdns[1484]: Starting mDNS discovery
Dec 15 00:00:13 debian-s-1vcpu-512mb-10gb-syd1-01 nextdns[1484]: Listening on UDP/:53
Dec 15 00:00:13 debian-s-1vcpu-512mb-10gb-syd1-01 nextdns[1484]: Startup failed: proxy: tcp: listen tcp :53: bind: address already in use
Dec 15 00:00:13 debian-s-1vcpu-512mb-10gb-syd1-01 nextdns[1484]: Error: proxy: tcp: listen tcp :53: bind: address already in use
Dec 15 00:00:13 debian-s-1vcpu-512mb-10gb-syd1-01 systemd[1]: nextdns.service: Main process exited, code=exited, status=1/FAILURE
Dec 15 00:00:13 debian-s-1vcpu-512mb-10gb-syd1-01 systemd[1]: nextdns.service: Failed with result 'exit-code'.
Dec 15 00:01:15 debian-s-1vcpu-512mb-10gb-syd1-01 systemd[1]: Started nextdns.service - NextDNS DNS53 to DoH proxy..
Dec 15 00:01:15 debian-s-1vcpu-512mb-10gb-syd1-01 nextdns[1632]: Starting NextDNS 1.41.0/linux on :53
Dec 15 00:01:15 debian-s-1vcpu-512mb-10gb-syd1-01 nextdns[1632]: Listening on TCP/:53
Dec 15 00:01:15 debian-s-1vcpu-512mb-10gb-syd1-01 nextdns[1632]: Starting mDNS discovery
Dec 15 00:01:15 debian-s-1vcpu-512mb-10gb-syd1-01 nextdns[1632]: Listening on UDP/:53
Dec 15 00:01:15 debian-s-1vcpu-512mb-10gb-syd1-01 nextdns[1632]: Startup failed: proxy: tcp: listen tcp :53: bind: address already in use
Dec 15 00:01:15 debian-s-1vcpu-512mb-10gb-syd1-01 nextdns[1632]: Error: proxy: tcp: listen tcp :53: bind: address already in use
Dec 15 00:01:15 debian-s-1vcpu-512mb-10gb-syd1-01 systemd[1]: nextdns.service: Main process exited, code=exited, status=1/FAILURE
Dec 15 00:01:15 debian-s-1vcpu-512mb-10gb-syd1-01 systemd[1]: nextdns.service: Failed with result 'exit-code'.

[rs]

You have a service running on port 53, most likely systemd-resolved. Please disable it first.

[rojomisin]

works out of the box on debian-11 though, can the script warn and help the user handle this?