Title: Shell Exec issue Last modified: September 1, 2016 --- # Shell Exec issue * Resolved [Greg Marshall](https://wordpress.org/support/users/timeassistant/) * (@timeassistant) * [9 years, 10 months ago](https://wordpress.org/support/topic/shell-exec-issue/) * Hi there, * Just about to use the plugin for the first time, however I noticed it wants to try and use Shell Exec, so I removed shell_exec from my php.ini (I have root access to our VPS) php.ini no longer has shell_exec disabled, however your plugin still reports that shell_exec is not supported. * Is there some kind of additional process required for shell_exec to work with your plugin or is there a bug somewhere? * ``` Version 4.5.3 Language en-GB Charset UTF-8 Memory Limit 40M (Max 256M) PHP Version 5.6.23 SAPI cgi-fcgi User #### Safe Mode Off Memory Limit 256M Memory In Use 13.75 MB Max Execution Time 90 Shell Exec Not Supported Shell Exec Zip Not Supported MySQL Version 5.5.5 Charset utf8mb4 Wait Timeout 300 Max Allowed Packets 268435456 msyqldump Path Path Not Found ``` * [https://wordpress.org/plugins/duplicator/](https://wordpress.org/plugins/duplicator/) Viewing 13 replies - 1 through 13 (of 13 total) * [Cory Lamle](https://wordpress.org/support/users/corylamleorg/) * (@corylamleorg) * [9 years, 10 months ago](https://wordpress.org/support/topic/shell-exec-issue/#post-7566575) * Hey Greg, * Did you happen to restart Apache after changing the shell_exec setting? Below is the code we use to detect shell_exec, you might shoot a copy over to your host as ask them if they have anything that prevents the code from working correctly in their enviroments: * ``` public static function IsShellExecAvailable() { $cmds = array('shell_exec', 'escapeshellarg', 'escapeshellcmd', 'extension_loaded'); //Function disabled at server level if (array_intersect($cmds, array_map('trim', explode(',', @ini_get('disable_functions'))))) return false; //Suhosin: http://www.hardened-php.net/suhosin/ //Will cause PHP to silently fail if (extension_loaded('suhosin')) { $suhosin_ini = @ini_get("suhosin.executor.func.blacklist"); if (array_intersect($cmds, array_map('trim', explode(',', $suhosin_ini)))) return false; } // Can we issue a simple echo command? if (!@shell_exec('echo duplicator')) return false; return true; } ``` * Thread Starter [Greg Marshall](https://wordpress.org/support/users/timeassistant/) * (@timeassistant) * [9 years, 10 months ago](https://wordpress.org/support/topic/shell-exec-issue/#post-7566642) * Thanks for the response, its a VPS with root access so no doubt it would be myself that would need to look into this. * Although I did notice the comment about suhosin, I have that enabled, is that my problem? * Edit: Yes I did restart apache I also had to perform a full reboot not long after too so it definitely wont be that 🙂 * [Cory Lamle](https://wordpress.org/support/users/corylamleorg/) * (@corylamleorg) * [9 years, 10 months ago](https://wordpress.org/support/topic/shell-exec-issue/#post-7566659) * It can… You might want to look at the suhsion config setup and make sure that shell_exec is not in the list for suhosin.executor.func.blacklist… * Thanks * Thread Starter [Greg Marshall](https://wordpress.org/support/users/timeassistant/) * (@timeassistant) * [9 years, 10 months ago](https://wordpress.org/support/topic/shell-exec-issue/#post-7566666) * Hi there, * I dont even have the suhosin.executor.func.blacklist defined, I was under the impression it should be in php.ini but it is not, do you know of any other locations it could be disabled there? * [Cory Lamle](https://wordpress.org/support/users/corylamleorg/) * (@corylamleorg) * [9 years, 10 months ago](https://wordpress.org/support/topic/shell-exec-issue/#post-7566668) * Hey Greg, * I believe your correct it is a php.ini directive. What if you just create an entry for it and set it to nothing, that may be enough to enable it? * Thread Starter [Greg Marshall](https://wordpress.org/support/users/timeassistant/) * (@timeassistant) * [9 years, 10 months ago](https://wordpress.org/support/topic/shell-exec-issue/#post-7566673) * I removed suhosin instead, no change still not detected. * As far as I can see it is enabled on the server (or atleast not disabled) * [Cory Lamle](https://wordpress.org/support/users/corylamleorg/) * (@corylamleorg) * [9 years, 10 months ago](https://wordpress.org/support/topic/shell-exec-issue/#post-7566675) * That is odd… I would just open the file below on your local server comment out the current code and have it return true. * [https://plugins.svn.wordpress.org/duplicator/tags/1.1.14/classes/utility.php](https://plugins.svn.wordpress.org/duplicator/tags/1.1.14/classes/utility.php) * At this point I’m not sure what the stag is, if you make any progress let me know and I might be able to work it back into the plugin for others… * Thread Starter [Greg Marshall](https://wordpress.org/support/users/timeassistant/) * (@timeassistant) * [9 years, 10 months ago](https://wordpress.org/support/topic/shell-exec-issue/#post-7566686) * for some reason the plugin won’t activate any more either, I have deleted and reinstalled it but still wont work, I click activate and the page seems to just reload without it activating * [Cory Lamle](https://wordpress.org/support/users/corylamleorg/) * (@corylamleorg) * [9 years, 10 months ago](https://wordpress.org/support/topic/shell-exec-issue/#post-7566690) * That is odd… Is it just Duplicator or are you seeing it with other plugins? * Thread Starter [Greg Marshall](https://wordpress.org/support/users/timeassistant/) * (@timeassistant) * [9 years, 9 months ago](https://wordpress.org/support/topic/shell-exec-issue/#post-7566698) * just a duplicator issue, everything else is fine to be honest rather weird * [Cory Lamle](https://wordpress.org/support/users/corylamleorg/) * (@corylamleorg) * [9 years, 9 months ago](https://wordpress.org/support/topic/shell-exec-issue/#post-7566700) * If you want to submit a ticket I can have a look (just refer to this thread), at this point I’m not really sure, don’t recall having seen this issue before… * Thread Starter [Greg Marshall](https://wordpress.org/support/users/timeassistant/) * (@timeassistant) * [9 years, 9 months ago](https://wordpress.org/support/topic/shell-exec-issue/#post-7566702) * Sure will do can you provide me a link to your ticket system? * [Cory Lamle](https://wordpress.org/support/users/corylamleorg/) * (@corylamleorg) * [9 years, 9 months ago](https://wordpress.org/support/topic/shell-exec-issue/#post-7566703) * You can follow the links in the plugin from the help menu or just [go here](https://lifeinthegrid.com/support). Viewing 13 replies - 1 through 13 (of 13 total) The topic ‘Shell Exec issue’ is closed to new replies. * ![](https://ps.w.org/duplicator/assets/icon-256x256.png?rev=2906985) * [Duplicator - Backups & Migration Plugin - Cloud Backups, Scheduled Backups, & More](https://wordpress.org/plugins/duplicator/) * [Frequently Asked Questions](https://wordpress.org/plugins/duplicator/#faq) * [Support Threads](https://wordpress.org/support/plugin/duplicator/) * [Active Topics](https://wordpress.org/support/plugin/duplicator/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/duplicator/unresolved/) * [Reviews](https://wordpress.org/support/plugin/duplicator/reviews/) * 13 replies * 2 participants * Last reply from: [Cory Lamle](https://wordpress.org/support/users/corylamleorg/) * Last activity: [9 years, 9 months ago](https://wordpress.org/support/topic/shell-exec-issue/#post-7566703) * Status: resolved