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kbitra1998
Level 4
October 11, 2021
Solved

How to get client IP address in AEM

  • October 11, 2021
  • 2 replies
  • 8224 views

How to get the client ip address in a easy way through AEM either using dispatcher or any other method.

 

 

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Best answer by Sanjay_Bangar

Hi @kbitra1998 ,

         You need to add something in configuration like below.

APACHE CONFIGURATION FILE: /etc/httpd/conf.d/httpd.conf

<IfModule remoteip_module> RequestHeader edit X-Forwarded-For ([0-9]+(?:\.[0-9]+){3})(:[0-9]+)? $1 early # valid for ALB, ELB, AppGateway or Load Balancer + CloudFront RemoteIPHeader X-Forwarded-For # valid for ALB, ELB, AppGateway or Load Balancer + Akamai RemoteIPHeader True-Client-IP </IfModule>

The above change will make sure the user’s IP address is added to the request header. The name of the header is X-Forwarded-For. 

 

Also, the header will have 2 IP addresses ( comma separated ). We have to make sure we read the first IP address from the CSV string.

 

2 replies

Sanjay_Bangar
Community Advisor
Sanjay_BangarCommunity AdvisorAccepted solution
Community Advisor
October 11, 2021

Hi @kbitra1998 ,

         You need to add something in configuration like below.

APACHE CONFIGURATION FILE: /etc/httpd/conf.d/httpd.conf

<IfModule remoteip_module> RequestHeader edit X-Forwarded-For ([0-9]+(?:\.[0-9]+){3})(:[0-9]+)? $1 early # valid for ALB, ELB, AppGateway or Load Balancer + CloudFront RemoteIPHeader X-Forwarded-For # valid for ALB, ELB, AppGateway or Load Balancer + Akamai RemoteIPHeader True-Client-IP </IfModule>

The above change will make sure the user’s IP address is added to the request header. The name of the header is X-Forwarded-For. 

 

Also, the header will have 2 IP addresses ( comma separated ). We have to make sure we read the first IP address from the CSV string.

 

    V
    vijayselvas1
    Level 2
    January 4, 2022

    Hi @sanjay_bangar ,

     

    I have added the code snippet in https.conf, but still I'm not seeing the x-forwarded-for in developer tools. will it be visible in developer tools - request headers?

      Asutosh_Jena_
      Community Advisor
      Asutosh_Jena_Community Advisor
      Community Advisor
      October 12, 2021

      Hi @kbitra1998 

       

      You can write one Util class in JAVA and add the following code into it.

       

      public static String getClientIPAddress(HttpServletRequest request) {
          String xForwardedForHeader = request.getHeader(HttpHeaders.X_FORWARDED_FOR);
          if (xForwardedForHeader == null) {
              return request.getRemoteAddr();
          } else {
              return new StringTokenizer(xForwardedForHeader, ",").nextToken().trim();
          }
      }

       

       This will always return the client IP address irrespective of ALB, ELB, CDN whatever.

       

      Thanks! 

        K
        kbitra1998Author
        Level 4
        October 12, 2021

        @asutosh_jena_  I will write the above code and deploy the jar. where can I see the clientip address in the headers part or anywhere else?

          Asutosh_Jena_
          Community Advisor
          Asutosh_Jena_Community Advisor
          Community Advisor
          October 12, 2021

          This methods return type is String. So you can print in log and check if you are getting the value or not. So based on your requirement wherever you need in program, you can use this method.

           

          Thanks!

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