Internal server error on Horde

Created:

2016-11-16 12:52:59 UTC

Modified:

2016-12-21 19:26:56 UTC

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Internal server error on Horde

Symptoms

When trying to access Webmail on Horde, the following errors occur:

    Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator, <administrator@domain.tld and inform them of the time the error occurred, and anything you might have done that may have caused the error.

More information about this error may be available in the server error log.

In the Apache log /var/log/httpd/error_log file there is:

    PHP Fatal error:  Directive 'magic_quotes_gpc' is no longer available in PHP in Unknown on line 0
[<date>] [warn] [client <client_ip>] (104)Connection reset by peer: mod_fcgid: error reading data from FastCGI server
[<date>] [error] [client <client_ip>] Premature end of script headers: login.php

Alternatively, the following error appears in " /var/log/messages ":

     Directive 'allow_call_time_pass_reference' is no longer available in PHP.

Cause

A PHP upgrade may mean that existing PHP 5.3 directives are incompatible with PHP 5.4 in the Horde php.ini file. Here is a list of the incompatible directives:

    register_globals
register_long_arrays
magic_quotes_gpc
magic_quotes_runtime
magic_quotes_sybase
allow_call_time_pass_reference
define_syslog_variables
highlight.bg
session.bug_compat_42
session.bug_compat_warn
y2k_compliance
safe_mode
safe_mode_gid
safe_mode_include_dir
safe_mode_exec_dir
safe_mode_allowed_env_vars
safe_mode_protected_env_vars
zend.ze1_compatibility_mode

Resolution

  1. Go to /etc/psa-webmail/horde/horde/php.ini and comment out the following line:

    magic_quotes_gpc = On
  2. Restart the httpd service:

    /etc/init.d/httpd stop
    /etc/init.d/httpd start
  3. Make sure that the permissions for cgi_wrapper are correct:

    # ls -la /var/www/cgi-bin/cgi_wrapper/cgi_wrapper
    -rwxr-xr-x 1 root root 18688 Jul 24 2013 /var/www/cgi-bin/cgi_wrapper/cgi_wrapper
  4. Make sure that the directives above are disabled, or disable them in Horde's php.ini

    less /etc/psa-webmail/horde/horde/php.ini |grep time_pass
    ;allow_call_time_pass_reference = On
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