I have installed new site in Joomla 1.7 and its working fine, but when i checked its back-end (administrator) got 500 Internal Server Error.
Note: Site is working fine in Local server.
Please suggestion me any solution.
Thanks in advance.
First you have change folder permission to 775 for the following folders:
cache, logs, tmp & administrator/cache
then go to: configuration.php
find code:
$log_path = 'XXXXXXXXXXXXX';
$tmp_path = 'XXXXXXXXXXXXX';
and change code into:
$log_path = './logs';
$tmp_path = './tmp';
problem solved :)
I had this problem, but none of your advices didn't help.
I fixed a problem only after I switched off all modules via PhpMyAdmin (PMA).
Table modules, changed parameter "published" to 0 for all and then enabled only few modules with these types:
- mod_login
- mod_menu
- mod_sumbenu
- mod_toolbar
- mod_title
After this I entered admin page and used top menu to enable all needed modules one by one. After admin page started to give me 500 error again I knew what module is faulty and I disabled it again via PMA.
May be some files are not uploded.Check failed transfer of your FTP server.Make sure all the files are uploded online
Check your error logs and backtrace what is causing the error. It sounds like you have MySQL errors, make sure any of your components/modules/aren't tricking out your site.
Think it's a component?
You can login into PHPMyAdmin and disable/enable modules manually by unpublishing them using the table editor, changing isPublished to 0 .
Try reinstalling database with the correct compatibility and also check web.config file on ftp for correct configuration paths !
I experienced something similar on my site. Digging through the log file, /administrator/error_log i saw this error message:
[08-Oct-2012 15:28:59] PHP Fatal error: Call to a member function login() on a non-object in /home/XXX/public_html/administrator/components/com_login/admin.login.php on line 65 .
Problem was, i had a previous installation of Joomla 1.5.x, and uploaded files for Joomla 1.6 to replace the previous files and upgrade security of the site. Took me almost a month to find a solution for my own case;
Finally found out from this website that I needed to completely delete all previous files in the website root directory before uploading a new version of Joomla.
Hope this helps someone out there who is in the same situation!
I also have the same issue on my site backend when editing or saving some articles, modules etc...Finally i solved it... Add these lines to /etc/httpd/conf.d/mod_secuirity.conf on your server
SecRuleEngine Off
save it...and restart apache...it works fine for me. Adding these lines disable mod_secuirity engine off.I don't know if it causes secuirity problems in future.. Tnx all...
Change the permission of folder administrator at 775 or 755
I tried all the above ideas. Without avail. For my site (which was an outdated Joomla 1.5.x site- don't ask!!!), where the backend suddenly stopped working, the final solution was switching the servers PHP version from 4 to 5.5 (even 5.4 did not work!).
I then got some strange PHP warnings in the frontend. But I then updated Joomla from the now again working backend to the last 1.5 version and everything worked fine from the on.
Phew! Maybe this helps someone later on...
In my case there was a single file with bad permissions.
It can be tricky to figure out which file has the problem so just run this to set the permissions for all the files in the directory:
chmod -R ug+rwX .
chmod -R o+rX .
Change the permissions of all of your files/directories.
- Files should be 755
- Directories should be 644
This is my case and my solution:
I have changed my server and got this error. I have protected my administrator folder using password protection method. So I have checked my new server and found that my protection information are not saved in control panel. also my .htaccess file (in administrator folder) is not compatible to my new server.
The solution:
- Simply protect my folder using control panel
- I have renamed the .htaccess file to htaccess.txt
It is done.
I hope it could be useful ;)
来源：https://stackoverflow.com/questions/8225027/500-internal-server-error-at-back-end-joomla