Unix Tip #4541- August 17, 2017


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LOCK THAT FILE DOWN


Sometimes you want to make a file very very secure.

To do this, change the permissions to 000

# chmod 000 [file]

No one except root will be able to access it.
Even the owner will have to change the
permissions to be able to do anything to it.

Although It's like a red flag that says..
"I'm an important file"


NOTE: DO NOT EVER DO THIS TO THE /etc/passwd FILE!


NOTE: All tips provided are USE AT YOUR OWN RISK. Tips are submitted by various unix admins around the globe. UGU suggest you read and test each tip in a non-volitile environment before placing into production.


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