要解决的问题

一个域名，如果只挂一个站点有点浪费，希望可以 aa.hostname.com -> localhost:8000 bb.hostname.com -> localhost:8001

思路

• 在 /etc/hosts 底下加入对hostname.com, aa.hostname.com, bb.hostname.com的解析。
• 二级域名的本质是用proxy_pass来实现的，路径的match导致请求重定向到proxy_pass的地方

方案

这是一个完整的/etc/nginx/nginx.conf，用python -m http.server来做示范了

user www-data;worker_processes 4;pid /run/nginx.pid;events {	worker_connections 768;	# multi_accept on;}http {	##	# Basic Settings	##	sendfile on;	tcp_nopush on;	tcp_nodelay on;	keepalive_timeout 65;	types_hash_max_size 2048;	# server_tokens off;	# server_names_hash_bucket_size 64;	# server_name_in_redirect off;	include /etc/nginx/mime.types;	default_type application/octet-stream;	##	# Logging Settings	##	access_log /var/log/nginx/access.log;	error_log /var/log/nginx/error.log;	##	# Gzip Settings	##	gzip on;	gzip_disable "msie6";	# gzip_vary on;	# gzip_proxied any;	# gzip_comp_level 6;	# gzip_buffers 16 8k;	# gzip_http_version 1.1;	# gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript;	##	# nginx-naxsi config	##	# Uncomment it if you installed nginx-naxsi	##	#include /etc/nginx/naxsi_core.rules;	##	# nginx-passenger config	##	# Uncomment it if you installed nginx-passenger	##		#passenger_root /usr;	#passenger_ruby /usr/bin/ruby;	##	# Virtual Host Configs	##	server {		server_name aa.hostname.com;		listen 80;		location / {			proxy_pass	http://127.0.0.1:8000/Documents/;		}	}        server {		server_name bb.hostname.com;		listen 80;		location / {			proxy_pass	http://127.0.0.1:8001/Documents/;		}	}	include /etc/nginx/conf.d/*.conf;	include /etc/nginx/sites-enabled/*;}#mail {#	# See sample authentication script at:#	# http://wiki.nginx.org/ImapAuthenticateWithApachePhpScript# #	# auth_http localhost/auth.php;#	# pop3_capabilities "TOP" "USER";#	# imap_capabilities "IMAP4rev1" "UIDPLUS";# #	server {#		listen     localhost:110;#		protocol   pop3;#		proxy      on;#	}# #	server {#		listen     localhost:143;#		protocol   imap;#		proxy      on;#	}#}

Nginx Road Map

显然只有http协议底下的转发是容易的，需要考虑如果有websocket的情况如何进行转发。 感觉思路应该是大体上一致的。

Ref 值得学的东西太多

大坑

如果hostname.com是被/etc/hosts解析的，一定要加上对aa.hostname.com;bb.hostname.com的解析才可以