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Opendkim Command Is Not Working with Php

Sarah Jenkins • • 2 min read
Opendkim Command Is Not Working with Php

I am running this command opendkim-genkey --domain=example.com --selector=example --subdomains on Linux terminal, It is working properly, but when I try to run this in my PHP page like shell_exec("opendkim-genkey --domain=example.com --selector=example --subdomains"); this is not working.. I also try to run another command in my php page, and I get result of them.

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1 Answer

I can see three explanations:

  • opendkim-genkey is not found because the environment variables are not the same: use an absolute path

  • Your Apache (or other webserver) user does not have permission to execute this command: you can use sudo, see

  • And as @rups suggested, your user may need write permission (if opendkim-genkey generates a key file)

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Sarah Jenkins
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Sarah Jenkins

Sarah Jenkins is a veteran tech journalist with over 12 years of experience covering artificial intelligence, mobile innovations, and digital ethics. Her insights have appeared in leading technology publications worldwide.