{"id":20859,"date":"2024-03-15T21:06:32","date_gmt":"2024-03-15T21:06:32","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/what-is-the-purpose-of-the-add_header-directive-in-nginx\/"},"modified":"2024-03-21T19:06:02","modified_gmt":"2024-03-21T19:06:02","slug":"what-is-the-purpose-of-the-add_header-directive-in-nginx","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/what-is-the-purpose-of-the-add_header-directive-in-nginx\/","title":{"rendered":"What is the purpose of the add_header directive in nginx?"},"content":{"rendered":"

`add_header` directive is used to add custom HTTP headers in the HTTP response of an Nginx server.<\/p>\n

Its effects can be seen in several aspects:<\/p>\n

By using the `add_header` directive, you can add custom header fields to the HTTP response. This allows you to pass on custom information to clients or other servers. For example, you could add an `X-Custom-Header` header field to identify a specific application or version number.<\/p>\n

   location \/ {
<\/p>
       add_header X-Custom-Header \"Custom Value\";<\/p>
       ...<\/p>
   }<\/p><\/pre>\n
2. Managing Cache Behavior: By adding specific header fields in the response header, you can control the caching behavior of the client or browser. For example, you can use the `add_header Cache-Control` directive to specify caching policies.<\/p>\n
   location \/ {
<\/p>
       add_header Cache-Control \"public, max-age=3600\";<\/p>
       ...<\/p>
   }<\/p><\/pre>\n
Security settings: The `add_header` directive can also be used to enhance the security of the server. For example, you can add the `Strict-Transport-Security` header to enable strict transport security mechanisms (HTTP Strict Transport Security).<\/p>\n
   location \/ {
<\/p>
       add_header Strict-Transport-Security \"max-age=31536000; includeSubDomains; preload\";<\/p>
       ...<\/p>
   }<\/p><\/pre>\n
In conclusion, the `add_header` directive allows you to add custom header fields to Nginx HTTP responses for purposes such as custom information passing, cache control, and security settings.<\/p>\n","protected":false},"excerpt":{"rendered":"
`add_header` directive is used to add custom HTTP headers in the HTTP response of an Nginx server. Its effects can be seen in several aspects: By using the `add_header` directive, you can add custom header fields to the HTTP response. This allows you to pass on custom information to clients or other servers. For example, […]<\/p>\n","protected":false},"author":14,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-20859","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nWhat is the purpose of the add_header directive in nginx? - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/blog\/what-is-the-purpose-of-the-add_header-directive-in-nginx\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is the purpose of the add_header directive in nginx?\" \/>\n<meta property=\"og:description\" content=\"`add_header` directive is used to add custom HTTP headers in the HTTP response of an Nginx server. Its effects can be seen in several aspects: By using the `add_header` directive, you can add custom header fields to the HTTP response. This allows you to pass on custom information to clients or other servers. 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