网站正常但wp-admin报404 Not Found错误（Nginx环境）求助

问题详情 #

• 网站前台可正常运行，但外部访问https://modafinilminds.com/wp-admin时显示404 Not Found错误
• 通过网站主机端（如主机内部预览、cPanel后台访问）可正常打开/wp-admin
• 已检查文件并更新.htaccess，内容如下：

# BEGIN WordPress
# The directives (lines) between "BEGIN WordPress" and "END WordPress" are
# dynamically generated, and should only be modified via WordPress filters.
# Any changes to the directives between these markers will be overwritten.
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteRule ^en/wp-login.php /wp-login.php [QSA,L]
RewriteRule ^de/wp-login.php /wp-login.php [QSA,L]
RewriteRule ^ja/wp-login.php /wp-login.php [QSA,L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

# END WordPress
# BEGIN LiteSpeed
# The directives (lines) between "BEGIN LiteSpeed" and "END LiteSpeed" are
# dynamically generated, and should only be modified via WordPress filters.
# Any changes to the directives between these markers will be overwritten.
<IfModule Litespeed>
SetEnv noabort 1
</IfModule>
# END LiteSpeed

原因分析 #

1. 缺少/wp-admin的重写规则：当前.htaccess仅针对多语言版本的wp-login.php做了跳转，但未处理/wp-admin路径。外部请求/wp-admin时，没有匹配的规则，最终被WordPress默认规则转发到index.php，返回404。
2. 主机端与外部访问逻辑差异：主机端访问可能绕过了部分Rewrite规则（比如使用本地IP/域名，未触发完整的域名解析和重写流程），因此能正常打开，而外部访问暴露了规则缺失的问题。
3. LiteSpeed规则/缓存影响：服务器使用LiteSpeed时，可能存在缓存未清除或规则加载顺序问题，导致/wp-admin请求未被正确处理。

修复方案 #

• 添加/wp-admin重写规则：在.htaccess的WordPress区块中，插入针对/wp-admin的规则，确保请求指向实际入口文件。修改后的代码如下：

# BEGIN WordPress
# The directives (lines) between "BEGIN WordPress" and "END WordPress" are
# dynamically generated, and should only be modified via WordPress filters.
# Any changes to the directives between these markers will be overwritten.
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
RewriteBase /
RewriteRule ^index\.php$ - [L]
# 添加/wp-admin重写规则，处理根路径的后台请求
RewriteRule ^wp-admin/?$ /wp-admin/index.php [L]
RewriteRule ^en/wp-login.php /wp-login.php [QSA,L]
RewriteRule ^de/wp-login.php /wp-login.php [QSA,L]
RewriteRule ^ja/wp-login.php /wp-login.php [QSA,L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

# END WordPress
# BEGIN LiteSpeed
# The directives (lines) between "BEGIN LiteSpeed" and "END LiteSpeed" are
# dynamically generated, and should only be modified via WordPress filters.
# Any changes to the directives between these markers will be overwritten.
<IfModule Litespeed>
SetEnv noabort 1
</IfModule>
# END LiteSpeed

• 重置固定链接：通过主机端登录/wp-admin，进入「设置」→「固定链接」，直接点击「保存更改」，让WordPress自动生成正确的.htaccess规则（操作前建议备份当前.htaccess）。
• 清除LiteSpeed缓存：进入主机面板的LiteSpeed缓存管理界面，清除所有缓存，并确保/wp-admin路径被添加到缓存排除列表。
• 检查文件权限：确认/wp-admin目录权限为755，内部文件权限为644，避免因权限问题导致外部访问被拒绝。

内容的提问来源于stack exchange，提问作者code Gravtor