Lando uses its own Certificate Authority to sign the certs for each service and to ensure that these certs are trusted on our internal Lando network. They should live inside every service at
/certs |-- cert.crt |-- cert.csr |-- cert.ext |-- cert.key |-- cert.pem
While Lando will automatically trust this CA internally it is up to you to trust it on your host machine. Doing so will alleviate browser warnings regarding certs we issue.
You may need to destroy the proxy container and rebuild your app
If you've tried to trust the certificate but are still seeing browser warnings you may need to remove the proxy with
docker rm -f landoproxyhyperion5000gandalfedition_proxy_1 and then
lando rebuild your app.
The default Lando CA should be located at
~/.lando/certs/lndo.site.pem. If you don't see the cert there, try starting up an app as this will generate the CA if its not already there. Note that if you change the Lando
domain in the global config you will have differently named certs and you will likely need to trust these new certs and rebuild your apps for them to propagate correctly.
Also note that in accordance with the restrictions on wildcard certs changing the
domain may result in unexpected behavior depending on how you set it. For example, setting
domain to a top level domain such as
test will not work while
Also also note that we produce a duplicate
crt file that you can use for systems that have stricter rules around how the certs are named. This means that by default you will also end up with a file called
~/.lando/certs/lndo.site.crt in addition to
That all said, once you've located the correct cert you can add or remove it with the relevant commands below.
# Add the Lando CA sudo security add-trusted-cert -d -r trustRoot -k /Library/Keychains/System.keychain ~/.lando/certs/lndo.site.pem # Remove Lando CA sudo security delete-certificate -c "Lando Local CA"
# Add the Lando CA certutil -addstore -f "ROOT" C:\Users\ME\.lando\certs\lndo.site.pem # Remove Lando CA certutil -delstore "ROOT" serial-number-hex
# Add the Lando CA sudo cp -r ~/.lando/certs/lndo.site.pem /usr/local/share/ca-certificates/lndo.site.pem sudo cp -r ~/.lando/certs/lndo.site.crt /usr/local/share/ca-certificates/lndo.site.crt sudo update-ca-certificates # Remove Lando CA sudo rm -f /usr/local/share/ca-certificates/lndo.site.pem sudo rm -f /usr/local/share/ca-certificates/lndo.site.crt sudo update-ca-certificates --fresh
Firefox maintains its own certificate store
Firefox users may still see browser warnings after performing the steps above. Firefox maintains its own certificate store and does not, by default, use the operating system's certificate store. To allow Firefox to use the operating system's certificate store, the security.enterprise_roots.enabled setting must be set to true.
- In Firefox, type
about:configin the address bar
- If prompted, accept any warnings
- Search for
- Set the value to