I got error after doing this command chown -R www-data:www-data /var/www find /var/www/ -type d -exec chmod 755 {} \; find /var/www/ -type f -exec chmod 644 {} \; now all my website n my ispconfig was Internal Server Error I tried to change permission back in ftp via filezilla but says "not permitted" Please help mo how to fix it. thanks
This completely destroyed your setup. You should reinstall the server if you don't have a backup. Fixing this manually is possible but very time consuming as every website has it's own user and group and different permissions ad you would have to fix them one by one.
OMG. thanks Sir I will try to fix it manually because I don't have backup. How to fix it manually? what the command to change this permission