how to configure file security in linux redhat

hello guys today we will discuss about file security in Linux redhat .we can configure file password very easy. this process in we can provide file password before file create and after file create .so let we start how to possible this before we will make one simple text file through VIM commands

[root@localhost ~]# vim file1.text

[root@localhost ~]# cat file1.text 
hello firends this is file security demo

here we can look .we make simple text file ,file1 through vim and open through cat cmd

if we want security on this file so we will  do like this

[root@localhost ~]# vim -x file1

Enter encryption key: *****

Enter same key again: *****

now your file is password protected

we can also configure file  password after file create  like this.

[root@localhost ~]#vim demo.text

notes-(then we puch Esc and Shift+:set key =12345)
(Esc & Shift+:wq)

we can also change and remove password

root@localhost ~]# vim demo.text

notes-(then we push Esc and Shift+:set key= (blank)
password is remove automaticaly

thank you
 by vishnu sharma