Spring boot 로그에 X-Forwarded-For를 통해서 client IP 기록하기

application.yml

server:
  port: {port}
  tomcat:
    use-relative-redirects: true
    basedir: .
    accesslog:
      enabled: true
      pattern: '%{yyyy-MM-dd HH:mm:ss}t %s %r %{User-Agent}i %{Referer}i %{X-Forwarded-For}i %b'

X-Forwarded-For를 인식하지 못하는 경우, X-Original-Forwarded-For를 사용

server:
  port: {port}
  tomcat:
    use-relative-redirects: true
    basedir: .
    accesslog:
      enabled: true
      pattern: '%{yyyy-MM-dd HH:mm:ss}t %s %r %{User-Agent}i %{Referer}i %{X-Original-Forwarded-For}i %b'

X-Original-Forwarded-For  특징
Original client IP 주소를 보관하기 위해서 사용

Single Proxy

X-Forwarded-For: 223.38.56.152

Multiple Proxies

X-Forwarded-For: 223.38.56.152, 192.168.49.1

 

Preserving the Original IP

X-Original-Forwarded-For: 223.38.56.152