How i can translate uppercase to lowercase letters in a rewrite rule in nginx web server?
Yes, you are going to need perl. If you are using Ubuntu, instead of apt-get install nginx-full, use apt-get install nginx-extras, which will have the embedded perl module.Then, in your configuration file:
http { ... # Include the perl module perl_modules perl/lib; ... # Define this function perl_set $uri_lowercase 'sub { my $r = shift; my $uri = $r->uri; $uri = lc($uri); return $uri; }'; ... server { ... # As your first location entry, tell nginx to rewrite your uri, # if the path contains uppercase characters location ~ [A-Z] { rewrite ^(.*)$ $scheme://$host$uri_lowercase; } ...