• http://nginx.org/en/docs/http/ngx_http_rewrite_module.html
• http://nginx.org/en/docs/http/ngx_http_rewrite_module.html#rewrite
• http://nginx.org/en/docs/http/ngx_http_rewrite_module.html#return

redirect 될 주소 뒤에 ? 를 붙이면 쿼리스트링을 제외하고 리다이렉트 시킴

If a *replacement* string includes the new request arguments, the previous request arguments are appended after them. If this is undesired, putting a question mark at the end of a replacement string avoids having them appended

rewrite ^/users/(.*)$ /show?user=$1? last;

• 뒤에 ?가 붙어있으므로 추가 쿼리스트링이 붙지 않음