What is the $server_name variable set to?

Question

I have a server block to redirect all http requests to https as follows:

server { listen 0.0.0.0:80; listen [::]:80; server_name a.com b.com c.com; return 301 https://$server_name$request_uri; }

It seems that requests coming in using all three domain names on port 80 will be redirected to https://a.com. Is this how $server_name is set?

You probably want to use $host instead of $server_name. See What is the difference between Nginx variables $host, $http_host, and $server_name? — Michael Hampton
– Michael Hampton, Commented Aug 1, 2018 at 15:05

ceejayoz · Accepted Answer · 2018-08-01 15:54:32Z

2

The first name becomes the primary server name.

You can use three separate server blocks, or Michael Hampton's excellent suggestion of the $host variable instead.

answered Aug 1, 2018 at 15:01

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