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domain	offcn.com
summary	The "403 Forbidden" error message you're seeing is a standard HTTP response code indicating that the server understands your request but refuses to authorize it. In other words, you don't have permission to access the resource you've requested. When using OpenResty (which combines Nginx with Lua scripting capabilities), this could happen for several reasons: 1. Access Control: The configuration files might contain directives like `deny` that prevent certain IP addresses or ranges of requests. Example in an Nginx config block: ```nginx location / { deny 192.168.0.0/16; allow all; } ``` 2. Directory Permissions: The requested resource (file/directory) might not have the correct permissions set, preventing it from being read. 3. Configuration Errors or Inconsistencies in OpenResty Scripts: A Lua script within your configuration could inadvertently block access if there's a misconfiguration. Example of an erroneous condition inside a location directive with embedded Luascript: ```nginx location / { content_by_lua_block { ngx.say("Access Denied") } error_page 403 = @error; sub @error { return 403; # This will cause the forbidden response. } access_log off; deny all; root html; } ``` 4. Server-side Authentication Failures: If there is some authentication mechanism in place (like Basic Auth or OAuth), and you haven't provided valid credentials, it could result in a 403 error. 5. Missing Resources/Files: The requested resource might not exist on the server at all due to misconfiguration of `root` directive causing an incorrect path lookup. Example: ```nginx location / { root html; } ``` 6. Custom Lua Code Block Handling Access Deny Conditions Improperly: Custom code within a content_by_lua_block could also be incorrectly handling the access logic. To diagnose and fix this issue, you may want to: - Check your Nginx/OpenResty's configuration files for any explicit `deny` directives. - Verify that directory permissions are correctly set on both server-side scripts/files/directories. - Ensure there is no Lua code inadvertently causing denial of service responses. - Review access log entries if they provide clues about the request failing to fulfill. Additionally, you may want to look into your OpenResty's error logs for more detailed diagnostic messages or errors that can point towards why these 403 Forbidden requests are being made in this context: ```shell tail -f /var/log/openresty/error.log ``` By carefully reviewing and adjusting the above configurations as needed based on specific server setup, you should be able to resolve your "403 Forbidden" issue.
title	403 Forbidden
description	403 Forbidden
keywords
upstreams
downstreams
nslookup	A 103.10.85.41
created	2025-06-21
updated	2025-07-01
summarized	2025-07-01

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