OS - Ubuntu 14.04 Well I am working on deployment using GIT webhooks for it. I havea added the deployment keys to git repo and now I want to trigger the git pull origin master command when a push happens from my local repo. This is the test.php file I call via browser.

    //echo "THis is a test file on a test repo for testing the deploy functionality using github webhooks!!!!";
    echo exec('whoami');
    echo exec('sh -x /var/www/iq/deploy-test/git.sh');

the shell file

cd /var/www/proj-dir/deploy-test
git pull origin master

When I run this on terminal using

php test.php I get the correct result as expected

 ubuntu From github.com:repo/test
 * branch            master     -> FETCH_HEAD
 Already up-to-date.

ubuntu for whoami and the git pull output.

Now heres the issue when I call the same http://example.com/test.php on browser it shows the user or whoami output as www-data,which is apache user,but I tried updating the permissions of the php file to execute and changing the user to www-data but did not work.
What updates do I need to make so the file works via browser request?

If I need to update the sudoers file what should be the updates?

  • how can I fix it? apache. conf?
    – KillABug
    Aug 20, 2015 at 8:34
  • if calls for exec were blocked then whoami should not work right? @muru
    – KillABug
    Aug 20, 2015 at 10:36
  • hmm, yes. Do the Apache logs indicate anything?
    – muru
    Aug 20, 2015 at 10:43
  • Please make sure you have the correct access rights and the repository exists. + cd /var/www/proj/deploy-test + git pull origin master Host key verification failed. fatal: Could not read from remote repository. Please make sure you have the correct access rights and the repository exists. But when I run it via terminal(php test.php) it works fine.
    – KillABug
    Aug 20, 2015 at 10:57
  • "Host key verification failed" - if you're using Git over SSH, the web server a) won't have the Git server in it's known_hosts, and b) won't have access to your private key for authentication.
    – muru
    Aug 20, 2015 at 11:28

1 Answer 1


I got it working.In my case,I was missing the authorized_keys and the known_hosts files in my www-data users root folder.I added .ssh folder under /var/www/.ssh. I previously only moved the ssh key files hence I faced the issue for not able to connect to the git repository over http.

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