Magento 404 on Admin Page

Question

I am getting a 404 error when trying to go to my admin page was working fine earlier today. Haven't changed anything since I last logged in and the only thing I was doing was assigning products to categories.

http://mytempsite.net/gotie/admin

WHAT IVE TRIED SO FAR
Delete the following file:-

app/etc/use_cache.ser <-- I could not find the file in ftp or ssh

then tried doing this Opened PhpMyAdmin
- Went to my database
- Clicked SQL
- Ran the following SQL Query:

SET FOREIGN_KEY_CHECKS=0;
UPDATE core_store SET store_id = 0 WHERE code='admin';
UPDATE core_store_group SET group_id = 0 WHERE name='Default';
UPDATE core_website SET website_id = 0 WHERE code='admin';
UPDATE customer_group SET customer_group_id = 0 WHERE customer_group_code='NOT LOGGED IN';
SET FOREIGN_KEY_CHECKS=1;

• benmarks: Cache settings were moved out of the serialized file and into the database as of CE 1.4.
• Nick Darley: and that means what to me...?
• benmarks: "app/etc/use_cache.ser <-- I could not find the file in ftp or ssh" That's why you can't find it.
• Fabian Blechschmidt: This sounds like a typical 404 ACL error, but I dont think thos is one
• Marius: Are you getting the Magento 404 page, or the usual 404 page from the server? If it's the usual 404 page you can try to use /index.php/admin. mod_rewrite might be disabled on the server.

Answer 1

First, are you the only admin user?

Second, In your app/etc/local.xml, look for:

<admin>
 <routers>
 <adminhtml>
 <args>
 <frontName><![CDATA[admin]]></frontName>
 </args>
 </adminhtml>
 </routers>
</admin>

Does it say admin or something else?

Third, go in your core_config_data table and try to locate these variables (lines 226 + 229):

admin/url/custom admin/url/custom_path

core_config_data

Do you have any caching enabled, or have any redirects setup? Delete the Cache manually (var/cache/).

I would enable your server logs (a quick look at GoDaddy has this tutorial showing how to do it: Working with Error Logs

Attempt to turn on Magento Logging (it should be on for dev sites). You can do this by going into "core_config_data" and look for a dev/log/active. It should be set to 1 for logging (yours is probably set to 0).

Logging

I would also go further and turn on Developer Mode (which should also be on for dev sites). You can do this by going to your index.php file and changing this:

if (isset($_SERVER['MAGE_IS_DEVELOPER_MODE'])) {
Mage::setIsDeveloperMode(true);
}
#ini_set('display_errors', 1);

to this:

//if (isset($_SERVER['MAGE_IS_DEVELOPER_MODE'])) {
Mage::setIsDeveloperMode(true);
//}
ini_set('display_errors', 1);

After talking to the user, it turns out it was a file error. I referred him to setup a Diff of his core files and setup a version control system.

• Nick Darley: only admin user, yes. second yes it says exactly that. Third Secure and Unsecure are mytempsite.net/gotie I dont have admin/url at all in the table
• kab8609: Did you do any kind of server changes recently? Are you using any kind of tool to update your products (like Magmi)? Do you see anything on your server access/error logs? Go ahead and remove everything in var/cache/.
• Nick Darley: nope system logs isn't turned on.. and no this is a site I am building so everything is entered manually and its hosted on a VPS by GoDaddy, but i haven't touched the server configs. Edit: i haven't looked at my actual server logs yet.
• Nick Darley: Server Error - [Thu May 09 14:05:48 2013] [error] [client 24.XXX.26.XXX] File does not exist: /home/csavello/public_html/crossdomain.xml this happens every 13 seconds
• kab8609: I added on the answer to show you how to enable Magento logging through phpMyAdmin. Do you have your code on version control? I can't tell yet if this is a server issue or not. Although I have heard horror stories about people attempting to get Magento to work on GoDaddy.

Answer 2

make sure that your apache .htaccess are enabled

refer link when you are using ubuntu 15.x: https://askubuntu.com/questions/48362/how-to-enable-mod-rewrite-in-apache