Some of useful Nginx rewrite rules

gistfile1.txt

// Nginx redirect non-www to www
server {
  listen      80;
  server_name domain.com;
  rewrite     ^/(.*)$ http://www.domain.com/$1 permanent;
}

server {
  listen      80;
  server_name www.domain.com;
  
  // ...
  // leave other settings here
}

gistfile2.txt

// Nginx redirect www to non-www
server {
  listen      80;
  server_name www.domain.com;
  rewrite     ^/(.*)$ http://domain.com/$1 permanent;
}
 
server {
  listen      80;
  server_name domain.com;
  
  // ...
  // leave other settings here
}

gistfile3.txt

// Remove .html
server {
  rewrite ^(/.+)\.html$ $scheme://$host$1 permanent;
}