varnish 4.0.3 域名访问的小问题

1，若端口不是80 端口则匹配的时候必须加端口

if (req.http.host ~ "(?i)^var.test.aa:6081$") {
set req.http.host = "var.test.aa";  #效果 X-Cache:MISS from var.test.aa 下面没有的话X-Cache：MISS from nish.test.bb:6081

set req.backend_hint = apache.backend();

} elsif (req.http.host ~ "(?i)^nish.test.bb:6081$") {
set req.backend_hint = nginx.backend();
}

2.varnish 代理本机nginx 是，好似不管怎么样配置，指定了域名和端口都会默认代理到 80端口的第一个nginx 配置

3.

sub vcl_init {
#new apache = directors.random();  #下面这两种都有效
new apache = directors.round_robin();
apache.add_backend(web1);
#new nginx = directors.random();
new nginx = directors.round_robin();
nginx.add_backend(web2);
}