nginx return 200 at other server_name - nginx

I have this code:
server {
listen 80;
server_name example.com;
return 301 https://www.sajufortune.com$request_uri;
}
server {
listen 80;
server_name www.example.com;
if ($http_x_forwarded_proto != 'https') {
rewrite ^ https://$host$request_uri? permanent;
}
set $alb internal-saju-alb-before-w43.us-west-2.elb.amazonaws.com;
location / {
proxy_pass $alb;
}
}
server {
listen 80;
location /ping/ {
return 200 'pong';
}
}
I got this returning 200 code from here:
I want to 200 response pong to /ping/ request from any url except example.com, www.example.com.
How can I do this?


Try the below config
server {
listen 80;
server_name example.com;
return 301 https://www.sajufortune.com$request_uri;
}
server {
listen 80;
server_name www.example.com;
if ($http_x_forwarded_proto != 'https') {
rewrite ^ https://$host$request_uri? permanent;
}
set $alb internal-saju-alb-before-w43.us-west-2.elb.amazonaws.com;
location / {
proxy_pass $alb;
}
}
server {
listen 80;
server_name _;
location /ping/ {
return 200 'pong';
}
}


According to http://nginx.org/en/docs/http/ngx_http_core_module.html#listen you need to either put the ping/pong server-block on the top, or append default_server on the listen option (e.g. listen 80 default_server;)

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...
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You can just redirect:
server {
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allow one location for server block otherwise return 404

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I want to allow one location to be accessible on port 80 (for certbot) otherwise return 404. My code above doesn't work. If I iremove the return 404; line it works.

You can create a root location which returns 404:
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root /var/www/html;
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My current setting is :
server{
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ssl_certificate_key /var/www/html/demo.key;
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root /var/www/html;
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Try
server{
listen 80;
listen 443 ssl;
server_name main.example.com;
ssl_certificate /var/www/html/demo.crt;
ssl_certificate_key /var/www/html/demo.key;
location / {
proxy_pass https://www.example.com;
}
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}
}
http://nginx.org/en/docs/http/configuring_https_servers.html#single_http_https_server

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listen [::]:80;
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listen 443;
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It turns out that the server block should not have a return statement. There should be two location blocks with return statements for each path
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Change to:
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include server.location2.conf
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}
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server {
listen 80;
server_name domain.com;
location 1 { ... }
}
server.location2.conf
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listen 80;
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server.location3.conf
server {
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