Install As Service

[kathampy]

Can you add a command line option to install dnsproxy as a service similar to cloudflared?

sudo cloudflared service install
https://github.com/cloudflare/cloudflared/blob/master/cmd/cloudflared/linux_service.go

[ameshkov]

Well, that's possible, but I'd prefer to do it the same way we do it in AG Home:
https://github.com/AdguardTeam/AdGuardHome/blob/master/service.go

This way it'll be cross-platform and support Win/Linux/MacOS.

[kathampy]

The service support in cloudflared is also cross-platform. I just linked to the Linux code for simplicity. Look at the parent directory. It doesn't require external libraries and uses only Go's sys packages even for the Windows service.

[krombel]

In the meantime you might use the following file for systemd (after creating a dedicated user dnsproxy and placing the build accordingly):

# /etc/systemd/system/dnsproxy.service
[Unit]
Description=dnsproxy
After=syslog.target
After=network.target

[Service]
Restart=always
RestartSec=2s
Type=simple
User=dnsproxy
Group=dnsproxy
WorkingDirectory=/var/lib/dnsproxy

ExecStart=/usr/local/bin/dnsproxy -z \
    -l 127.0.0.1 -p 53 \
    -u https://doh.ffmuc.net/dns-query -u tls://dot.ffmuc.net \
    -f 127.0.0.53:53

CapabilityBoundingSet=CAP_NET_BIND_SERVICE
AmbientCapabilities=CAP_NET_BIND_SERVICE

[Install]
WantedBy=multi-user.target

[Cwek]

Is it also possible to add a command line option for writing the runtime PID to the PID file ?

[EchedelleLR]

Which inits would be supported?

I would be interested in OpenRC support as well but maybe if SysVInit script is provided, would work on any system using OpenRC (Gentoo, Devuan, Alpine which is used in containers a lot), Runit (Dragora GNU/Linux-Libre, Void Linux) or SystemD (Ubuntu, Debian and derivatives) and even legacy SysVInit.

[gspannu]

Is there any temporary work around to achieve the below for my ASUS Router (in the meantime)?

@ameshkov @joshcangit @krombel

Something similar to AdGuardHome...

I can configure AdGuardHome to run as a service on my ASUS Merlin Router (with Entware).

Example of AdGuard Home

1. Contents of /opt/etc/init.d/

#!/bin/sh
ENABLED=yes
WORK_DIR=/opt/etc/AdGuardHome
PROCS=AdGuardHome
ARGS="-c $WORK_DIR/AdGuardHome.yaml -w "$WORK_DIR" --no-check-update -l syslog"
PREARGS="nohup"
PRECMD="killall -9 dnsmasq"
POSTCMD="service restart_dnsmasq"
DESC=$PROCS
PATH=/opt/sbin:/opt/bin:/opt/usr/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
export TZ=$(cat /etc/TZ)
. /opt/etc/init.d/rc.func

2. And then I all I need to do is make changes to my dnsmasq conf

port=553
local=/1.168.192.in-addr.arpa/

This makes AdGuardHome as the DNS server running on port 53 and my existing dnsmasq still operating on my router (on custom port 553 and only for local queries)

---

Can I do something similar with dnsproxy?

Or some workaround/ hack to utilise it the same way as AdGuardHome ?

What I am looking to achieve is...

• Run dnsproxy as a service and listen on port 53
• dnsproxy will then forward the queries to different upstream AdGuardHome resolvers (configured in dnsproxy.yaml)
• existing dnsmasq (of the Asus router) will continue to operate as normal; but listening on port 553 and responding only to local queries.

[gspannu]

Not using dnsmasq but I'm using systemd-resolved. I set this in /etc/systemd/resolved.conf.
.......
But before that, I set nameserver 127.0.0.1 to /etc/resolvconf/resolv.conf.d/tail. I didn't even needed to remove systemd-resolved or set a different port.

Thanks.

@joshcangit I presume you are running this on Debian/ Ubuntu..

My bigger issue is getting dnsproxy to run as a service. How do I get dnsproxy to launch automatically using /opt/etc/init.d
.... this is the crux of my issue.

[joshcangit]

Yes indeed, I'm using Ubuntu.
Sorry, I assumed this would work the same on your setup.
As far as I can tell, I'm only guessing as to how it would work.
I just read the README.md to use the command with arguments inside a systemd.service file.
So maybe the configuration could be this?

#!/bin/sh
ENABLED=yes
WORK_DIR=/opt/etc/AdguardTeam
PROCS=dnsproxy
ARGS="-l 127.0.0.1 -l ::1 -u quic://dns.futuredns.me -u quic://doh.tiar.app -f https://anycast.dns.nextdns.io/dns-query -f https://doh.dns.sb/dns-query -b 80.80.80.80:53 -b 80.80.81.81:53 --all-servers"
PREARGS="nohup"
DESC=$PROCS
PATH=/opt/sbin:/opt/bin:/opt/usr/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
export TZ=$(cat /etc/TZ)
. /opt/etc/init.d/rc.func

Forgive me, i didn't know about Entware.
I'll also guess you may not need to use different ports.
It can still be port 53, but maybe dnsmasq and dnsproxy clash on Entware?

[iJorgen]

quic://doh3.dns.nextdns.io

Old thread, but noticed you are using DoH3 to NextDNS in the config. Can DNSproxy already do DoH3 to upstream servers?!
Is it only acting as it's own DoH3-server that's missing in DNSproxy?

[joshcangit]

oh, I forgot about what I said in #234.
It works if only if QUIC port is 853.
I know NextDNS uses 8853, AdGuard uses 784 and Dandelion Sprout 48582 so those can't ever be used.
I wasn't aware of dnsproxy using the fallback DNS addresses.
I think quic://dns.futuredns.me and quic://doh.tiar.app should work.

[Tealk]

I try to start it with:

[Unit]
Description=dnsproxy
After=syslog.target
After=network.target

[Service]
Restart=always
RestartSec=2s
Type=simple
User=root
Group=root
WorkingDirectory=/opt/dnsproxy
ExecStart=/opt/dnsproxy/dnsproxy --config-path=config.yaml

CapabilityBoundingSet=CAP_NET_BIND_SERVICE
AmbientCapabilities=CAP_NET_BIND_SERVICE

[Install]
WantedBy=multi-user.target

but i get this error:

Mai 18 17:18:38 tealks-frame-work systemd[1]: dnsproxy.service: Main process exited, code=exited, status=203/EXEC
Mai 18 17:18:38 tealks-frame-work systemd[1]: dnsproxy.service: Failed with result 'exit-code'.

System:
  Kernel: 6.8.9-300.fc40.x86_64 arch: x86_64 bits: 64 compiler: gcc
    v: 2.41-34.fc40
  Desktop: GNOME v: 46.1 Distro: Fedora Linux 40.20240518.0 (Silverblue)

[Mikaela]

@Tealk your ExecStart has a spelling mistake, unless you have a binary named dnYproxy

[Tealk]

@Mikaela thanks, i realised that yesterday but i must have forgotten to correct it here, that's not the problem anyway.