Introduction
# nginx -v
nginx version: nginx/1.14.0 (Ubuntu)
/etc/nginx/sites-enabled/default.conf
server {
listen 80; # managed by Certbot
server_name *.demo.com;
location / {
error_log /var/log/nginx/error.log;
proxy_pass http://hostserver;
proxy_set_header Host $host;
proxy_set_header X_Real_IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
add_header X-Test $remote_addr;
}
}Error message
# nginx -t
nginx: [warn] could not build optimal proxy_headers_hash, you should increase either proxy_headers_hash_max_size: 512 or proxy_headers_hash_bucket_size: 64; ignoring proxy_headers_hash_bucket_size
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful
Add
proxy_headers_hash_max_size 512;
proxy_headers_hash_bucket_size 128;
server {
listen 80; # managed by Certbot
server_name *.demo.com;
location / {
error_log /var/log/nginx/error.log;
proxy_pass http://hostserver;
proxy_set_header Host $host;
proxy_set_header X_Real_IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
add_header X-Test $remote_addr;
#come from:https://www.iaspnetcore.com/blog/5f8b1dabf3819901eefd49e5
# nginx -t
#nginx: [warn] could not build optimal proxy_headers_hash, you should increase either proxy_headers_hash_max_size: 512 or proxy_headers_hash_bucket_size: 64; ignoring proxy_headers_hash_bucket_size
#add below
proxy_headers_hash_max_size 512;
proxy_headers_hash_bucket_size 128;
}
}After you are done editing the small part, check your Nginx configuration by running the nginx -t command.
sudo nginx -t You should get:
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful