Local DNS Mapping
Surge supports local-customized DNS mapping. It's equivalent to /etc/hosts, but with more powerful features, including wildcard, alias and assigning DNS server.
[Host] abc.com = 18.104.22.168 *.dev = 22.214.171.124 foo.com = bar.com bar.com = server:126.96.36.199
You can use * prefix to wildcard all sub-domains. Please note that Surge uses a simple string match. For example, *google.com will match google.com, foo.google.com and bargoogle.com. And *.google.com will not match google.com.
[Host] *.dev = 188.8.131.52
It's equivalent to CNAME record.
[Host] foo.com = bar.com
Assigning DNS Server
You can assign a specified DNS server to one or more domains.
[Host] bar.com = server:184.108.40.206
Since Surge has its own DNS client implementation, some hostnames may fail to resolve. You can use 'server:system' to let system handle the lookup.
[Host] Macbook = server:system
By default, all hostnames with suffix '.local' will be resolved by the system.
All features can be used together. For example:
[Host] *.dev = foo.com *.bar.com = server:system