My servers are currently running a fresh install of Ubuntu 16.04 server, no direct nor indirect system changes have been made.
A folder/file is completely accessible when created, but if I use chmod
to make the slightest change, I completely lose access to that folder, and the only way to access it is through root.
sudo chmod -r -777
will make the folder completely useless, and there is no way for me to access it.
777
though. Rather go for e.g.755
or644
(depending on whether it should be executable/is a directory or not) to restrict write permissions for other users except the owner. – Byte Commander Nov 26 '17 at 21:25