404 errors after migrating application from a Linux server

Yii 2.0 Installation and Setup
1

Hi community,

I have a Yii 2 application up and running on a 20.04 Ubuntu server (PHP Version 7.4.3-4ubuntu2.19) and I’m trying to migrate this application to a Virtual Machine running a 22.04 (PHP Version 8.1.2-1ubuntu2.14). Both are using Apache2 as the webserver.

This application is running from /var/www/htdocs/pt3 and I transferred all content from the server to the exact same path on the virtual machine.

After doing this, in the virtual machine (destination), whatever link/tile I click I get an 404 error from Apache2.

image
image1437×540 50 KB

Here is what I have on my Apache2 conf file and the .htaccess file that is sitting inside the /htdocs/pt3/ folder

Apache2 conf file

<VirtualHost *:80>

        # The ServerName directive sets the request scheme, hostname and port t>

        # the server uses to identify itself. This is used when creating

        # redirection URLs. In the context of virtual hosts, the ServerName

        # specifies what hostname must appear in the request's Host: header to

        # match this virtual host. For the default virtual host (this file) this

        # value is not decisive as it is used as a last resort host regardless.

        # However, you must set it for any further virtual host explicitly.

        #ServerName www.example.com



        ServerAdmin webadmin@localhost

        DocumentRoot /var/www/htdocs



        # Enable CGI

        ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/

        <Directory "/usr/lib/cgi-bin">



            AllowOverride None

            Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch

            Order allow,deny

            Allow from all



        </Directory>



        # Available loglevels: trace8, ..., trace1, debug, info, notice, warn,

        # error, crit, alert, emerg.

        # It is also possible to configure the loglevel for particular

        # modules, e.g.

        #LogLevel info ssl:warn



        ErrorLog ${APACHE_LOG_DIR}/error.log

        CustomLog ${APACHE_LOG_DIR}/access.log combined



        # For most configuration files from conf-available/, which are

        # enabled or disabled at a global level, it is possible to

        # include a line for only one particular virtual host. For example the

        # following line enables the CGI configuration for this host only

        # after it has been globally disabled with "a2disconf".

        #Include conf-available/serve-cgi-bin.conf

</VirtualHost>



# vim: syntax=apache ts=4 sw=4 sts=4 sr noet

And .htaccess conf file

Options +FollowSymLinks

IndexIgnore /

RewriteEngine on



# if a directory or a file exists, use it directly

RewriteCond %{REQUEST_FILENAME} !-f

RewriteCond %{REQUEST_FILENAME} !-d



# otherwise forward it to index.php

RewriteRule . index.php



<IfModule mod_suphp.c>

 AddHandler application/x-httpd-php-5.4.13.php

</IfModule>

I have tried to disable pretty url in the Config/web.php from Yii and once I do this, I have a different 404 error when I click on the side menu.

If I try and click in the main tiles on screen I get the regular 404 error from Apache2

According to some people from the community, migrating a Yii application is as simple as copy and paste the main directory and pay attention to the webserver configuration. I’m not sure what I’m doing wrong.

Can someone help me, please?

2

UPDATE:

I have discovered that all 404 errors are showing up because a “missing” index.php in the URL.
Here’s a real example.
In the dashboard with these tiles when I hover over “Country”, the suggested address is localipaddress/pt3/web/admin/country/index

image
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When I click on this tile I get a 404 error, HOWEVER, if I add index.php to this address as follows: localipaddress/pt3/web/index.php/admin/country/index it works.

There must be something related to redirections. I checked the server where this is working and the htaccess and virtual host info are the same as my new instance

Still need help from a good soul… anyone?

3

Hi. I’m definitely not an Apache expert but are sure you have mod_rewrite extension enabled?

If so, have a look at https://stackoverflow.com/questions/9632852/how-to-debug-Apache-mod-rewrite

1 Like
4

Ok, I believe I got it working now.
All I did was to change my .htaccess file from

Options +FollowSymLinks

IndexIgnore /

RewriteEngine on



# if a directory or a file exists, use it directly

RewriteCond %{REQUEST_FILENAME} !-f

RewriteCond %{REQUEST_FILENAME} !-d



# otherwise forward it to index.php

RewriteRule . index.php



<IfModule mod_suphp.c>

 AddHandler application/x-httpd-php-5.4.13.php

</IfModule>

to

# prevent directory listings

Options -Indexes

IndexIgnore */*



# follow symbolic links

Options FollowSymlinks

RewriteEngine on

RewriteRule ^(.+)?$ web/$1

Thank you @BartQ76