Redirect HTTP to HTTPS from Nginx is not working

Question

Type: https://example.com => ssl ok But type: www.example.com and example.com is http no redirect https. (www redirect to non-www).

WordPress Address (URL) and Site Address (URL): https//example.com

/etc/nginx/conf.d/example.com.conf

server {
listen 80; 
server_name example.com www.example.com;
return 301 https://$server_name$request_uri;
}
server {
listen 443 ssl;
server_name example.com www.example.com;
ssl on;
ssl_certificate /etc/nginx/ssl/cert_chain.crt;
#ssl_CACertificate_File /etc/nginx/ssl/example.com.ca-bundle;
ssl_certificate_key /etc/nginx/ssl/example.com.key; 
access_log off;
# access_log /home/example.com/logs/access_log;
error_log off;
# error_log /home/example.com/logs/error.log; 
add_header X-Frame-Options SAMEORIGIN;
add_header X-Content-Type-Options nosniff;
add_header X-XSS-Protection "1; mode=block";
root /home/example.com/public_html;
include /etc/nginx/conf/ddos2.conf;
index index.php index.html index.htm;
server_name example.com;

How to fix it ? Sorry my bad English, thank you.

Solution 1

This might be caused by the ambiguous server name indeed. Try using the following:

server {

    server_name example.com www.example.com;
    listen 80;
    listen 443 ssl; # Listen for SSL at port 443 as well

    # ... other config - certificates and such

    # If a user tries to come through http, redirect them through https
    if ($scheme != "https") { 
        return 301 https://$host$request_uri;
    }
}

You can check your nginx configuration by running sudo nginx -t.

Solution 2

I had the similar problem. It was caused by linux firewall (port 80 was disallowed).

Solution 3

Your configuration is not clear, you have at the end a duplicated server_name example.com line.

Try to use this:

server {
    listen 80 default_server;
    listen [::]:80 default_server;
    server_name example.com www.example.com;
    return 301 https://$server_name$request_uri;
}

Comments

[danglingpointer]

did you enable the https support in your server config?

[Huu Duc Cua Hang]

Yes, I did enable.

[Huu Duc Cua Hang]

I try it, and deleted duplicate code server_name example.com. Restart nginx but my issue is still

[Huu Duc Cua Hang]

# service nginx restart nginx: [warn] conflicting server name "example.com" on 0.0.0.0:80, ignored nginx: [warn] conflicting server name "www.example.com" on 0.0.0.0:80, ignored nginx: [warn] conflicting server name "example.com" on 0.0.0.0:80, ignored Stopping nginx: [ OK ] Starting nginx: nginx: [warn] conflicting server name "example.com" on 0.0.0.0:80, ignored nginx: [warn] conflicting server name "www.example.com" on 0.0.0.0:80, ignored nginx: [warn] conflicting server name "example.com" on 0.0.0.0:80, ignored

[nbari]

check that you only have one server { listen 80 ... you could try by first just trying the block I put here and later enable the others, use nginx -t to test the config

[Huu Duc Cua Hang]

Check only in /etc/nginx/conf.d/example.com.conf ?

[Huu Duc Cua Hang]

nginx -t nginx: the configuration file /etc/nginx/nginx.conf syntax is ok nginx: configuration file /etc/nginx/nginx.conf test is successful

[Admin]

Please add further details to expand on your answer, such as working code or documentation citations.