Setup dnsmasq on OS X

dnsmasq OS X.md

Never touch your local /etc/hosts file in OS X again

NOTE this has been done properly by a guy here: https://www.stevenrombauts.be/2018/01/use-dnsmasq-instead-of-etc-hosts/

You should go and do that now, ignore all of this.

To setup your computer to work with *.dev domains, e.g. project.dev, awesome.dev and so on, without having to add to your hosts file each time.

Requirements

• Homebrew
• Mountain Lion

Install

brew install dnsmasq

Setup

Create config directory

mkdir -pv $(brew --prefix)/etc/

Setup *.dev

echo 'address=/.dev/127.0.0.1' > $(brew --prefix)/etc/dnsmasq.conf

You should probably add strict-order to dnsmasq.conf to keep nameserver order of resolv.conf (see here).

Autostart

Work after reboot

sudo cp -v $(brew --prefix dnsmasq)/homebrew.mxcl.dnsmasq.plist /Library/LaunchDaemons

Get it going right now

sudo launchctl load -w /Library/LaunchDaemons/homebrew.mxcl.dnsmasq.plist

Add to resolvers

Create resolver directory

sudo mkdir -v /etc/resolver

Add your nameserver to resolvers

sudo bash -c 'echo "nameserver 127.0.0.1" > /etc/resolver/dev'

Add local DNS to search order in System Preferences

System Preferences > Network > Wi-Fi (or whatever you use) > Advanced... > DNS > add 127.0.0.1 to top of the list.

Finished

That's it! You can run scutil --dns to show all of your current resolvers, and you should see that all requests for a domain ending in .dev will go to the DNS server at 127.0.0.1

isn't the step "Create config directory" irrelevant?

surely brew creates this as part of the install.

@hackzilla Let me know if it does and I can update the gist. It works with the step in so I haven't tried it without, but I get what you're saying.

apparently it doesn't

Would you translate/convert sudo cp -v $(brew --prefix dnsmasq)/homebrew.mxcl.dnsmasq.plist /Library/LaunchDaemons for MacPorts users? Is this a one-time run or per reboot?

Hi. Although this MAY be useful, it isn't very helpful if you don't explain how each command works explicitly. Just blindly copying and pasting commands like this, without knowing what each one will do, is never a good idea.

BTW on my machine, /usr/local/etc/ already exists.

Also, be aware that .dev exists as a "real" TLD in the ICANN root, so you should probably come up with a different TLD

https://newgtlds.icann.org/en/program-status/delegated-strings

Will this override any hosts entries already in place or VM defined hosts?

to follow up the comment from September: .dev does exist, and anyone reading this far down should change to use .test, which is reserved by icann for just such purposes.

also i don't believe this will override host entries in place but i could be wrong about that!

I use macOS Sierra, I have to remove strict-order from my configuration in order for srv-host to work.

Fell too for the .dev TLD trap. Plase, change this in your gist.

Having .dev in TLD also preventev my docker-machine env dev from functioning.

Remember to NOT delete your old DNS servers from MacOS network preferences. Add 127.0.0.1 to the list and move it to the top. When you hit the + button it deletes the DNS entries by default from the list, so note them down, and add them back in, but add 127.0.0.1 to the top.

Also, if the DNS entries you're trying to create don't actually exist, then you don't need to add 127.0.0.1 to your network preferences DNS order. If your domain suffix is blah, make sure that you add the nameserver 127.0.0.1 to /etc/resolver/blah for the OS X resolver fallback to work.

See this for more info.

Thanks for this. As previously suggested, it is not recommended to use .dev, see dont use dev for development for additional info and recommendations (tl:dr .localhost, .invalid, .test, .example are discussed).

I couldn't get it work when adding it to LaunchDaemons, even add an execution as user setting
so I'll have to manually run sudo /usr/local/opt/dnsmasq/sbin/dnsmasq --keep-in-foreground after login and it works well
(I am using mac Sierra 10.12.6)

I followed the setup doing my local dnsmasq network listening on Ethernet interface (10.0.0.11).
But after reboot dnsmasq is on the list of running provesses but I have to restart it manually each time I boot up the system.
After that it works.
I have no idea why it is but I have an idea that dnsmasq is runned before Ethernet going up.
That resolves why after restart the service helps.

https://stackoverflow.com/a/47744259/6629

from chrome 63+, domain names ending in .DEV get forcibly redirected to https://. It is recommended to use .TEST as the TLD for local domains.

^^ correct

Instead of altering the LaunchDaemons manually, you can use the convenient brew services.

FYI Google has claimed the .dev domain, I now use .test instead

I've had this successfully working a few years ago on yosemite, but recently I realized it fails on sierra.

manually running the dnsmasq binary (instead of loading plist daemon file) helped as it did show the reason why it failed.

brew installation doesn't seem to create /usr/local/var/run/dnsmasq/ dir required for the daemon to run. after creating this dir - it works again.

I have set everything up accordingly, and have the /usr/local/var/run/dnsmasq/dnsmasq.pid with nobody:nobody. Should this be the same user:group as httpd is running?

missing from these instructions is how to have a domain try to resolve thru dnsmasq first, then continue to use the system DNS resolvers next. i'd love to see a recipe on how to configure that!

@ogrrd please add a big note your gist saying that people mustn't use .dev as it's a gTLD.