Re: mod_perl odd behaviour with system() or exec() call or backticks

[Anonymous Monk]

For now I am out of ideas,

The list of things to check is: perms/user, paths/shebang, %ENV, chroot, firewall, AppArmor/SELinux

There, now you have more ideas :)

[pucek]

Thank you for quick response. I already verified permissions, paths and shebang are correct too. Concerning environmental variables, should I look for something particular? I don't know how to verify AppArmor/SELinux, I never changed anything concerning that. Could firewall influence execution of a command by the script? I thougth it could block the script itself, but not a particular operation in that script.