Nginx location regex. You’ll learn the exact matching algorithm, understand when to use each modifier, and discover common pitfalls that even experienced administrators fall into. ingress. */. org; } server { listen 80; server_name *. Regular expression (regex) match location blocks use the “ " or " *” modifiers for case-sensitive and case-insensitive matches, respectively. In your case, you have placed location ~ /(privacy|eula) above the location ~ \. org; } server { listen 80; server nginx: [emerg] "proxy_pass" cannot have URI part in location given by regular expression, or inside named location, or inside "if" statement, or inside "limit_except" block The regular expression location blocks are evaluated in order until a match is found. I want to create one location regex for an endpoint that I currently serve using the following four rules. This is apparently necessary, if there's also another nested location with another regex and regex capture groups. 7. 3a. (js|css|png|jpg|jpeg|gif|ico)$ { Thanks. If the workaround above doesn't work you'll have to rethink your approach. nginx: [emerg] "proxy_pass" cannot have URI part in location given by regular expression, or inside named location, or inside "if" statement, or inside "limit_except" block To find a location match for an URI, NGINX first scans the locations that is defined using the prefix strings (without regular expression). If no regular expression uri matches request uri, we conclude that not a single location directive matches request uri and 404 Not Found should be returned. Nov 11, 2023 · Learn how to use regex in Nginx location blocks to match dynamic patterns in the URI. Sets a value for the specified variable. 文章浏览阅读3. This works because when Nginx finds an exact match with an = it uses that location to serve the request. Every time I run the config test I get a failed pass. Authentication It is possible to add authentication by adding additional annotations in the Ingress rule. It seems to be an nginx problem I'm just trying to refactor the regular expression that has been used three times by assigning it to a variable that I then would like to use in the location directive. uri: The URI to be matched. conf. php. php file in subfolder Nginx location "not equal to" regex Asked 12 years, 9 months ago Modified 3 years ago Viewed 159k times This is apparently necessary, if there's also another nested location with another regex and regex capture groups. See also “ How nginx processes a request ”. location ~* ^. location ~* ^/api/(?<version>. Not to say it can't be improved, but the regex is matching (as I can see from the nginx logs). Jan 24, 2026 · This comprehensive guide explains how NGINX location priority actually works, backed by insights from the NGINX source code. The basics Here's a really simple, but working, Nginx server configuration with one location block, that block performs a redirect to a different domain:. Use nginx. Filed under: Server — Tagged with: nginx, redirect, regex The Nginx location directive sets configuration depending on a request URI, on which, for example, redirects can be performed. So, use your important critical regular expression location match at the top of your configuration. nginx location regex matches directory range Ask Question Asked 14 years, 9 months ago Modified 14 years, 9 months ago Traefik should automatically detect common regex patterns in paths (containing (, ), |, $, etc. Apache / API behind NGINX Reverse Proxy - $remote_user printing. php like: ## Any other attempt to access PHP files returns a 404. Trying to use regex as path for my nginx location Ask Question Asked 1 year, 5 months ago Modified 1 year, 5 months ago 4 In Nginx, according to this question's answer https://stackoverflow. Understand prefix, exact, regex, and nested location rules. So in the case of /12abc34/, the variable $1 would be set to abc. +\\. Die Nginx -Standortanweisung ermöglicht Routing -Anforderungen an einen bestimmten Speicherort im Dateisystem. com/questions/59846238/guide-on-how-to-use-regex-in-nginx-location-block-section when using no modifier between the location directive and the URI it means that the URI must begin with the specified pattern. Aug 22, 2025 · Learn how to set up Nginx here. I would like to ask about some configurations for Nginx; How to setup regular expression in Nginx location block? this is my configuration location ~ ^/web/api/v1/([A-Za-z]+) { I'm setting up nginx and I need to use the location directive to match all requests that begin with /site1 AND end with . g. We suggest reading the NGINX documentation on resolve location priority to gain additional context about NGINX and NGINX Plus before using the path-regex annotation. 40), for example: A much more Nginx friendly solution is actually very simple. 139 location = /abc {} matches the exact uri /abc location ~ /abc is a regex match on the uri, meaning any uri containing /abc, you probably want: location ~ ^/abc for the uri begining with /abc instead edited Mar 9, 2011 at 5:09 answered Mar 9, 2011 at 4:38 Martin Redmond 1 I think that in Lua you will have to check not only length, but also the content of string. Nginx does regex matching in the order the location directives are listed in your config and chooses the first matching block, so if this file url will match any of your other regex directives then you need to place this block above those locations: 1 Write location "/rails" block above of defined block for safety. How to use Nginx Regex in the location Ask Question Asked 3 years, 6 months ago Modified 3 years, 6 months ago There is a workaround a vaguely remember reading about which these other questions describe Nginx location regex doesn't work with proxy pass Nginx. 3w次，点赞41次，收藏149次。本文深入解析Nginx配置技巧，涵盖常用规则、实际应用建议、Flag标志位、If判断指令、全局变量、正则表达式、Rewrite规则及实例，通过具体案例展示Nginx的强大功能。 If no exact match location is found, nginx will search for the longest matching prefix location, regardless of whether any regex locations are defined. In diesem Artikel werden die Beispiele für REGEX -Beispiele von Nginx kurz erläutert. And if the best matching prefix location does not have the ^~ modifier, nginx will try to match the request that will eventually be processed by that location against every defined regex Also the order of matching is substantially different. org www. Jan 21, 2020 · Regex expressions can be used with Nginx location block section, this is implemented with the PCRE engine. io/session-cookie-path to control the cookie path when use-regex is set to true. Summary After updating Home Assistant OS and Supervisor (I'm not sure which one caused the issue), the regex location ~ block in my Nginx Proxy Manager configuration stopped working. Here, you should not escape the limiting quantifier braces, but you need to tell NGINX that you pass the braces as a part of the regex pattern string. Enables or disables logging of ngx_http_rewrite_module module directives processing results into the error_log at the notice level. It builds the relevant configuration for you and shows the values for capture groups. Warning The following example describes a case that may inflict unwanted path matching behavior. To start off let me show you a working configuration location / { If the use-regex OR rewrite-target annotation is used on any Ingress for a given host, then the case insensitive regular expression location modifier will be enforced on ALL paths for a given host regardless of what Ingress they are defined on. 4: 102: February 18, 2026 When nginx selects a location block to serve a request it first checks location directives that specify prefixes, remembering location with the longest prefix, and then checks regular expressions. 4 In Nginx, according to this question's answer https://stackoverflow. The Nginx location directive is defined in the configuration file nginx. php will not be processed by the correct location and will be downloaded instead. They may be defined using exact names, wildcard names, or regular expressions: server { listen 80; server_name example. 100 I'm having trouble understanding nested locations in nginx. I personally want Nginx "location" to support multiple "=" conditions instead of relying on a regex rule. docker , reverse-proxy , logging , regex. NGINX. +\. Server names are defined using the server_name directive and determine which server block is used for a given request. The moment nginx matches a regular expression location configuration, it will not look any further. See examples, syntax, precedence, and troubleshooting tips for NGINX location blocks. php$ { return 404; } However I have some index. Thereafter, the location with regular expressions are checked in order of their declaration in the configuration file. Während Nginx einen Standortblock mit der angeforderten URL übereinstimmt oder durchsucht, teilt die Standortanweisung mit. I think in Nginx it's faster. example. Using redirects with regular expressions There are also plenty of articles to be found via Google. ) and apply PathRegexp matching, similar to how NGINX Ingress Controller uses location ~* for such paths. Among them, the location with the longest matching prefix is selected and remembered. These blocks provide more flexibility when matching URLs, as they can match complex patterns. io/session-cookie-change-on-failure to control the cookie change after request failure. , exact, prefix, regex). I am having a problem trying to get the following configuration to work. The regular expression (regex) tester for NGINX and NGINX Plus takes the guesswork out of regexes, telling you whether a regex for a location or map block matches values as you intend. I have two locations with some configuration directives in common, so rather than repeat the directives, I'd prefer to repeat the URI using a regular-expression: location ~ /a|/b { location /a { } location /b { } } However, this gives the error The regular expression location blocks are evaluated in order until a match is found. Her Nginx will match the first location block with the same prefix, so this needs to go before the two existing blocks, or you need to remove mp3 from the match criteria for the other two blocks. A much more Nginx friendly solution is actually very simple. If nginx find one regular expression uri that matches request uri, the whole matching phase is finished and this regular expression uri is the final result. *)$ { Use nginx. Trying to use regex as path for my nginx location Ask Question Asked 1 year, 5 months ago Modified 1 year, 5 months ago 10 Nginx uses the PCRE engine for evaluating regular expressions, the documentation state that / delimiter is not used so we don’t have to escape the forward slash / in an URI as we may do in a standard regex. Nginx uses the C library PCRE for regular expressions. If there is a match with a regular expression, nginx picks this location or, otherwise, it picks the one remembered earlier. kubernetes. *)(/. Sep 17, 2024 · Learn how to use regular expressions (regex) in Nginx location blocks to match URLs with case-sensitive or case-insensitive options. Nov 5, 2025 · Learn how to use the Nginx location directive with real-world examples for static files, regex matching, reverse proxy setups, and common configurations. Nginx does regex matching in the order the location directives are listed in your config and chooses the first matching block, so if this file url will match any of your other regex directives then you need to place this block above those locations: Dive deep into understanding NGINX location rules, including exact matches, prefix, and regex types, for optimized web server configuration. There is also PCRE-JIT which JIT compiles regular expression, particularly useful if the regular expression is more complex than the one in your question. If alias is used inside a location defined with a regular expression then such regular expression should contain captures and alias should refer to these captures (0. Because inside that other location, $1 $2 $3 etc will refer to values from the nested regex, overwriting the $1 $2 in the outer regex. In a lot of "small" cases, it will behave like you want, but this is something to stay aware of. Below you can see its basic syntax: location [modifier] uri { modifier: An optional parameter that defines the type of match (e. See examples, tips, and tools for optimizing regex performance and troubleshooting errors. What regex do I use to do this? I know I can use ^ to match the beginn The Nginx config I have throws 404 for . Quotes from the nginx location description To find location matching a given request, nginx first checks locations defined using the prefix strings (prefix locations). With a plain string in the location path it works and I can access the file from the browser. Fingerpri Learn how Nginx selects server blocks and location blocks using its matching algorithms. *)/(?<service>. nginx simple regex location Ask Question Asked 12 years, 9 months ago Modified 11 years, 1 month ago Nginx location "not equal to" regex Asked 12 years, 9 months ago Modified 3 years ago Viewed 159k times Nginx regex and wildcard for location Asked 8 years, 5 months ago Modified 8 years, 5 months ago Viewed 22k times The part of the regular expression within parentheses is captured as $1 within the location block. See examples of regex basics, modifiers, match order, capturing groups, and complex use cases. If a regular expression includes the “} ” or “; ” characters, the whole expressions should be enclosed in single or double quotes. One problem is that this will not match if you are using an index page because the request is rewritten internally and so will match the second location "better" and use that. php$ BUT the following code is escaping the forward slash In the nginx config I just want to use a regex for the location but I can't get any regex to work. An example of a valid nginx regex is location ~* /myapp/. php$ block, so that a URI like /eula/index. 3b. What does exactly this feature support as it is not fully documented? Jan 19, 2024 · Learn how to use NGINX location blocks to match URLs with regular expressions and other modifiers. Thus, you need to enclose the whole pattern with double quotes: The Fingerprinting System is ScopeSentry's web technology identification engine that uses YAML-based rule definitions to detect web servers, frameworks, devices, and enterprise applications. I have two locations with some configuration directives in common, so rather than repeat the directives, I'd prefer to repeat the URI using a regular-expression: location ~ /a|/b { location /a { } location /b { } } However, this gives the error In your configuration, the following location is defined before the one with the proxy_pass and it matches the request of js and css files under static: location ~* \. 9bg1b, ynf2g, 6vaalg, 9d2m0j, 48qvly, n22j, 95mg2y, gwjml7, zbeng1, czcaay,