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ERROR 500 - INTERNAL SERVER ERROR


WHY AM I SEEING THIS PAGE?

500 errors usually mean that the server has encountered an unexpected condition
that prevented it from fulfilling the request made by the client. This is a
general error class returned by a web server when it encounters a problem in
which the server itself can not be more specific about the error condition in
its response to the client.

In many cases this is not an indication of an actual problem with the server
itself but rather a problem with the information the server has been instructed
to access or return as a result of the request. This error is often caused by an
issue on your site which may require additional review by your web host.

Please contact your web host for further assistance.


IS THERE ANYTHING THAT I CAN DO?

There are a few common causes for this error code including problems with the
individual script that may be executed upon request. Some of these are easier to
spot and correct than others.

FILE AND DIRECTORY OWNERSHIP

The server you are on runs applications in a very specific way in most cases.
The server generally expects files and directories be owned by your specific
user cPanel user. If you have made changes to the file ownership on your own
through SSH please reset the Owner and Group appropriately.

FILE AND DIRECTORY PERMISSIONS

The server you are on runs applications in a very specific way in most cases.
The server generally expects files such as HTML, Images, and other media to have
a permission mode of 644. The server also expects the permission mode on
directories to be set to 755 in most cases.

(See the Section on Understanding Filesystem Permissions.)

COMMAND SYNTAX ERRORS IN .HTACCESS FILE

In the .htaccess file, you may have added lines that are conflicting with each
other or that are not allowed.

If you would like to check a specific rule in your .htaccess file you can
comment that specific line in the .htaccess by adding # to the beginning of the
line. You should always make a backup of this file before you start making
changes.

For example, if the .htaccess looks like

DirectoryIndex default.html
AddType application/x-httpd-php5 php

Then try something like this

DirectoryIndex default.html
#AddType application/x-httpd-php5 php

Note: Due to the way in which the server environments are setup you may not use
php_value arguments in a .htaccess file.

EXCEEDED PROCESS LIMITS

It is possible that this error is caused by having too many processes in the
server queue for your individual account. Every account on our server may only
have 25 simultaneous processes active at any point in time whether they are
related to your site or other processes owned by your user such as mail.

ps faux

Or type this to view a specific user's account (be sure to replace username with
the actual username):

ps faux |grep username

Once you have the process ID ("pid"), type this to kill the specific process (be
sure to replace pid with the actual process ID):

kill pid

Your web host will be able to advise you on how to avoid this error if it is
caused by process limitations. Please contact your web host. Be sure to include
the steps needed to see the 500 error on your site.


UNDERSTANDING FILESYSTEM PERMISSIONS

SYMBOLIC REPRESENTATION

The first character indicates the file type and is not related to permissions.
The remaining nine characters are in three sets, each representing a class of
permissions as three characters. The first set represents the user class. The
second set represents the group class. The third set represents the others
class.

Each of the three characters represent the read, write, and execute permissions:

 * r if reading is permitted, - if it is not.
 * w if writing is permitted, - if it is not.
 * x if execution is permitted, - if it is not.

The following are some examples of symbolic notation:

 * -rwxr-xr-x a regular file whose user class has full permissions and whose
   group and others classes have only the read and execute permissions.
 * crw-rw-r-- a character special file whose user and group classes have the
   read and write permissions and whose others class has only the read
   permission.
 * dr-x------ a directory whose user class has read and execute permissions and
   whose group and others classes have no permissions.

NUMERIC REPRESENTATION

Another method for representing permissions is an octal (base-8) notation as
shown. This notation consists of at least three digits. Each of the three
rightmost digits represents a different component of the permissions: user,
group, and others.

Each of these digits is the sum of its component bits As a result, specific bits
add to the sum as it is represented by a numeral:

 * The read bit adds 4 to its total (in binary 100),
 * The write bit adds 2 to its total (in binary 010), and
 * The execute bit adds 1 to its total (in binary 001).

These values never produce ambiguous combinations. each sum represents a
specific set of permissions. More technically, this is an octal representation
of a bit field – each bit references a separate permission, and grouping 3 bits
at a time in octal corresponds to grouping these permissions by user, group, and
others.

Permission mode 0755

4+2+1=7 Read, Write, eXecute 4+1=5 Read, eXecute 4+1=5 Read, eXecute

Permission mode 0644

4+2=6 Read, Write 4 Read 4 Read


HOW TO MODIFY YOUR .HTACCESS FILE

The .htaccess file contains directives (instructions) that tell the server how
to behave in certain scenarios and directly affect how your website functions.

Redirects and rewriting URLs are two very common directives found in a .htaccess
file, and many scripts such as WordPress, Drupal, Joomla and Magento add
directives to the .htaccess so those scripts can function.

It is possible that you may need to edit the .htaccess file at some point, for
various reasons.This section covers how to edit the file in cPanel, but not what
may need to be changed.(You may need to consult other articles and resources for
that information.)

THERE ARE MANY WAYS TO EDIT A .HTACCESS FILE

 * Edit the file on your computer and upload it to the server via FTP
 * Use an FTP program's Edit Mode
 * Use SSH and a text editor
 * Use the File Manager in cPanel

The easiest way to edit a .htaccess file for most people is through the File
Manager in cPanel.

HOW TO EDIT .HTACCESS FILES IN CPANEL'S FILE MANAGER

Before you do anything, it is suggested that you backup your website so that you
can revert back to a previous version if something goes wrong.

OPEN THE FILE MANAGER

 1. Log into cPanel.
 2. In the Files section, click on the File Manager icon.
 3. Check the box for Document Root for and select the domain name you wish to
    access from the drop-down menu.
 4. Make sure Show Hidden Files (dotfiles)" is checked.
 5. Click Go. The File Manager will open in a new tab or window.
 6. Look for the .htaccess file in the list of files. You may need to scroll to
    find it.

TO EDIT THE .HTACCESS FILE

 1. Right click on the .htaccess file and click Code Edit from the menu.
    Alternatively, you can click on the icon for the .htaccess file and then
    click on the Code Editor icon at the top of the page.
 2. A dialogue box may appear asking you about encoding. Just click Edit to
    continue. The editor will open in a new window.
 3. Edit the file as needed.
 4. Click Save Changes in the upper right hand corner when done. The changes
    will be saved.
 5. Test your website to make sure your changes were successfully saved. If not,
    correct the error or revert back to the previous version until your site
    works again.
 6. Once complete, you can click Close to close the File Manager window.


HOW TO MODIFY FILE AND DIRECTORY PERMISSIONS

The permissions on a file or directory tell the server how in what ways it
should be able to interact with a file or directory.

This section covers how to edit the file permissions in cPanel, but not what may
need to be changed.(See the section on what you can do for more information.)

THERE ARE MANY WAYS TO EDIT A FILE PERMISSIONS

 * Use an FTP program
 * Use SSH and a text editor
 * Use the File Manager in cPanel

The easiest way to edit file permissions for most people is through the File
Manager in cPanel.

HOW TO EDIT FILE PERMISSIONS IN CPANEL'S FILE MANAGER

Before you do anything, it is suggested that you backup your website so that you
can revert back to a previous version if something goes wrong.

OPEN THE FILE MANAGER

 1. Log into cPanel.
 2. In the Files section, click on the File Manager icon.
 3. Check the box for Document Root for and select the domain name you wish to
    access from the drop-down menu.
 4. Make sure Show Hidden Files (dotfiles)" is checked.
 5. Click Go. The File Manager will open in a new tab or window.
 6. Look for the file or directory in the list of files. You may need to scroll
    to find it.

TO EDIT THE PERMISSIONS

 1. Right click on the file or directory and click Change Permissions from the
    menu.
 2. A dialogue box should appear allowing you to select the correct permissions
    or use the numerical value to set the correct permissions.
 3. Edit the file permissions as needed.
 4. Click Change Permissions in the lower left hand corner when done. The
    changes will be saved.
 5. Test your website to make sure your changes were successfully saved. If not,
    correct the error or revert back to the previous version until your site
    works again.
 6. Once complete, you can click Close to close the File Manager window.