I have a file I need to execute as userme. The following command runs just fine:
# sudo /usr/lib/squid3/squid_radius_auth -f /etc/squid3/radius-config
However, when I run as userme, it gives the following error:
# sudo -u userme /usr/lib/squid3/squid_radius_auth -f /etc/squid3/radius-config
sudo: unable to execute /usr/lib/squid3/squid_radius_auth: Permission denied
I have tried these:
# sudo chown userme:userme /usr/lib/squid3/squid_radius_auth
# sudo chmod 777 /usr/lib/squid3/squid_radius_auth
# sudo chmod +x /usr/lib/squid3/squid_radius_auth
but this doesn't work. I just cant get it to run as non-root.
Found the answer here:
It is not enough to have read permission on a file in order to read it. You also need to have read permission on the directory it belongs to.
The solution here was:
chmod 775 /usr/lib/squid3/