I had faced the same problem when I follow the yii2 hard way template then I made the following changes in config, vhost and .htaccess file.
/frontend/config/main.php
return [
'homeUrl' => '/',
'components' => [
'request' => [
'baseUrl' => '',
],
'urlManager' => [
'enablePrettyUrl' => true,
'showScriptName' => false,
],
],
];
/backend/config/main.php
return [
'homeUrl' => '/admin',
'components' => [
'request' => [
'baseUrl' => '/admin',
],
'urlManager' => [
'enablePrettyUrl' => true,
'showScriptName' => false,
],
],
];
.htaccess
You need to add below mentioned code in .htaccess file which is there in the root of your application. If you do not have one then you need to create .htaccess file in the root of you advance application.
Options FollowSymLinks
AddDefaultCharset utf-8
<ifmodule mod_rewrite.c>
RewriteEngine On
# the main rewrite rule for the frontend application
RewriteCond %{REQUEST_URI} !^/(backend/web|admin)
RewriteRule !^frontend/web /frontend/web%{REQUEST_URI} [L]
# redirect to the page without a trailing slash
#RewriteCond %{REQUEST_URI} ^/admin/$
#RewriteRule ^(admin)/ /$1 [L,R=301]
# the main rewrite rule for the backend application
RewriteCond %{REQUEST_URI} ^/admin
RewriteRule ^admin(.*) /backend/web/$1 [L]
# if a directory or a file of the frontend application exists,
# use the request directly
RewriteCond %{REQUEST_URI} ^/frontend/web
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
# otherwise forward the request to index.php
RewriteRule . /frontend/web/index.php [L]
# if a directory or a file of the backend application exists,
# use the request directly
RewriteCond %{REQUEST_URI} ^/backend/web
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
# otherwise forward the request to index.php
RewriteRule . /backend/web/index.php [L]
RewriteCond %{REQUEST_URI} \.(htaccess|htpasswd|svn|git)
RewriteRule \.(htaccess|htpasswd|svn|git) - [F]
</ifmodule>
vhost file
<VirtualHost *:80>
DocumentRoot "path of your project" //no need to mention backend/frontend
ServerName "example.com"
<Directory "path of your project">
Options Indexes FollowSymLinks MultiViews
AllowOverride All
Require all granted
</Directory>