Administrator page 404 not found

Question

I can't access administrator's page; it returns 404 error not found. Although when I rename .htaccess to htaccess.txt, admin page works, but the whole site returns 404 error not found. When I rename it back to .htaccess, the website pages work, but not the admin page.

I am using Joomla 3 and I am using an extra login layer (from a plugin, but can't remember its name) for the Joomla administration panel.

Does anyone know what is causing this?

Answer 1

If your admin area works widthout .htaccess its possible your joomla config has rewrite option enable. You can try edit your configuration.php file and change the status directly in configuration file:

$sef_rewrite = '0';
$sef = '0';
$sef_suffix = '0';

Answer 2

I was having the same problem, and found a solution.

Disable the following items:

Cache

public $ caching = '';
public $ cache_handler = 'file'; # (replace memcache, per file)
public $ cachetime = '1600';

Memcache

public $ memcached_persist = '0'; # I was in '1'

Live Site

public $ live_site = ''; # (remove the full domain name)

Gzip

public $ gzip = '0'; # (disable, after running ... test the activation)

Sef

# (Disable as below, after running test enable)

public $ sef = '0';
public $ sef_rewrite = '0';
public $ sef_suffix = '0';

In case of error 404 for other pages, possibly the SEF is enabled.

1. Check the .htacess (Rewrite enabled)

2. Activate Rewrite

   $ cd / etc / apache2 / mods-available
   a2enmod rewrite
   

For SEF in NGINX with PHP-FPM Put in domain configuration (etc / nginx / sites-available / SITE.conf)

 server {
     listen ## IP ### or *: 80;
     server_name MYSITE.com www.MYSITE.com;
     root / home / MYSITE / public_html;
     index.php index.html index.htm; #### VERIFY THIS ORDER
     access_log /var/log/MYSITE.com_access_log;
     error_log /var/log/MYSITE.com_error_log;
     fastcgi_param GATEWAY_INTERFACE CGI / 1.1;
     fastcgi_param SERVER_SOFTWARE nginx;
     fastcgi_param QUERY_STRING $ query_string;
     fastcgi_param REQUEST_METHOD $ request_method;
     fastcgi_param CONTENT_TYPE $ content_type;
     fastcgi_param CONTENT_LENGTH $ content_length;
     fastcgi_param SCRIPT_FILENAME / home / MYSITE / public_html $                            
     fastcgi_script_name;
     fastcgi_param SCRIPT_NAME $ fastcgi_script_name;
     fastcgi_param REQUEST_URI $ request_uri;
     fastcgi_param DOCUMENT_URI $ document_uri;
     fastcgi_param DOCUMENT_ROOT / home / MYSITE / public_html;
     fastcgi_param SERVER_PROTOCOL $ server_protocol;
     fastcgi_param REMOTE_ADDR $ remote_addr;
     fastcgi_param REMOTE_PORT $ remote_port;
     fastcgi_param SERVER_ADDR $ server_addr;
     fastcgi_param SERVER_PORT $ server_port;
     fastcgi_param SERVER_NAME $ server_name;
     fastcgi_param HTTPS $ https;
     ##-> see that it is uncommented ## location ~ \ .php $ {
     ##-> uncommented ## try_files $ uri = 404;
     ## -> uncommented ## fastcgi_pass unix: /var/php-nginx/172882919829029351.sock/socket;
     location / {
         try_files $ uri /index.php;
     }
     location ~ \ .php $ {
         try_files $ uri = 404;
         fastcgi_split_path_info ^ (. + \. php) (/.+) $;
         fastcgi_pass localhost: 8001;
         fastcgi_read_timeout 6000;
         -> configuration for SSL HTS #add_header Strict-Transport-Security "max-age = 31536000; includeSubDomains" always;   
     }
     location ~ \ .user \ .ini $ {
         deny all;
     }
     listen ### IP or *: 443 ssl;
     ssl_certificate /home/mysite/ssl.cert;
     ssl_certificate_key /home/mysite/ssl.key;
     fastcgi_read_timeout 3000;
 }

Answer 3

Does that plugin by any chance add a token to access the admin? Like you need to add ?foo=bar to the URL to get access. Then it's working as intended.

You can disable that plugin by simply renaming the folder using FTP or by changing the state of it in the database (#__extension table).

Answer 4

Go to Admin Tools in the Joomla backend, then go to the SEO and Link Tools section.

In there, there will be 2 options:

• Enable link migration
• Convert all links to HTTPS when site is accessed over SSL

Try disabling both of these if they are enabled.

Answer 5

The fix is in the file .htaccess

Delete the line:

RewriteRule .* index.php [L]

and save

go in your browser to: joomla/administrator and al work again!

Answer 6

In configuration.php, set public $live_site = ''; (only when working on localhost). I've been facing this problem myself repeatedly, for years literally, every time forgetting this old trick.