>> Hi chris, >> >>> I use httpServletRequest.getServerPort() to get the port in my jsp. >>> When the tomcat listen 8080 and nginx listen 80. >>> Nginx has set ‘proxy_set_header Host $http_host’. >> >>> What is the value of $http_host? >> >> The $http_host is ‘externalIP:10001’ (I print it in access_log of >> nginx to make sure that it is a correct valve.) >> I use httpServletRequest.getHeader(“Host”) in java and it can print >> the right value too. But as I know the getServerPort should print the number >> after ‘:’ of ‘Host’ Header. >> So I don’t know what’s the wrong. >> >> And today I found another similar situation. >> The server has a Internet IP and Tomcat listening 8080 and nginx >> listening 81. So there are no port mapping. >> At this time getServerPort() still return 80. >> >>> Then the port 80 mapping to Internet via 10001. >>> Use httpServletRequest.getHeader(“Host”) I can get the correct value of >>> Host header �C “InternetIP:10001”. >>> But httpServletRequest.getServerPort() did not return 10001 and return 80. >>> How could I solve it？ >>> Btw, to set proxyPort in connector can not take effect. But proxyName work. >> >>> Have you read about the RemoteIPValve? >> The RemoteIPValve seems to be used for get the real client IP, but I >> just need to get the correct port which client use to visit my website. >> >> Forgive my poor English and I hope you can understand what I say. (＾－＾) > >Something does not make sense: > >1. You have nginx listening on port 80, proxying to port 100001 > >2. You have a Tomcat <Connector> on port 8080: > <Connector port="8080" protocol="HTTP/1.1" > connectionTimeout="20000" > redirectPort="8443" maxHttpHeaderSize="8192" >maxThreads="4000" minSpareThreads="1000" maxSpareThreads="2000" >enableLookups="false" acceptCount="2000" URIEncoding="UTF-8" >maxPostSize="4194304" /> > >If Tomcat is listening on port 8080, how is nginx reaching it on port 10001?
Sorry for my poor English. I re-explain the problem: I mean the nginx listening on port 80 and tomcat listening on 8080. So the visitors in the LAN can use 80 to visit my website. Then the port 80 make a port mapping to port 10001. So the visitors use 10001 to visit my website via internet. At this time the browser send the Host header with value ‘domain:10001’. The nginx print the correct value ‘domain:10001’ in nginx access log. The jsp print the correct value ‘domain:10001’ when I use httpServletRequest.getHeader(“Host”). According to the definition of ‘getServerPort()’, it should return 10001 but now it return 80. What’s more, the port 80 not relate to nginx, just bcz I am using the http protocol. In another server I found one more situation. The server has an internet IP and Tomcat listening 8080 and nginx listening 81. So there are no port mapping. The visitors use ‘http://domain:81’ to visit the website. At this time getServerPort() still return 80. --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
