{"provider_url":"https://hatena.blog","type":"rich","blog_title":"\u30a8\u30ad\u30b5\u30a4\u30c8 TechBlog.","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftech.excite.co.jp%2Fentry%2F2021%2F10%2F23%2F120000\" title=\"remote_addr\u3068X-Forwarded-For\u306b\u3064\u3044\u3066 - \u30a8\u30ad\u30b5\u30a4\u30c8 TechBlog.\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","categories":[],"author_url":"https://blog.hatena.ne.jp/excite-SD/","provider_name":"Hatena Blog","blog_url":"https://tech.excite.co.jp/","height":"190","title":"remote_addr\u3068X-Forwarded-For\u306b\u3064\u3044\u3066","width":"100%","published":"2021-10-23 12:00:00","version":"1.0","author_name":"excite-SD","url":"https://tech.excite.co.jp/entry/2021/10/23/120000","image_url":null,"description":"\u30a8\u30ad\u30b5\u30a4\u30c8\u306e\u3057\u3070\u305f\u306b\u3048\u3093\u3067\u3059\u3002 remote_addr\u3068X-Forwarded-For\u306e\u9055\u3044\u306b\u3064\u3044\u3066\u3088\u304f\u308f\u304b\u3089\u306a\u304b\u3063\u305f\u306e\u3067\u8abf\u3079\u307e\u3057\u305f\u3002 remote_addr \u30a2\u30af\u30bb\u30b9\u5143\u306eIP\u3002\u76f4\u524d\u306eIP\u3092\u6301\u3061\u307e\u3059\u3002 Client \u2193 LoadBalancer(remote_addr \u306f Client) \u2193 ApplicationServer(remote_addr \u306f LoadBalancer) Java\u3067remote_addr\u3092\u53d6\u5f97\u3059\u308b @RequestMapping public class IpController { @GetMapping(\"ip\") public String getIp(Htt\u2026"}