4 articles tagged "etc passwd"
- nixCraft FAQ Roundup May 14, 2007
Recently updated/posted Linux and UNIX FAQ (mostly useful to Linux/UNIX new administrators or users) :
Howto find out size of AIX UNIX RAM memory
How to bind a range of IP’s in Debian / Ubuntu Linux
How do I view my Linux or UNIX server bandwidth usage?
What is an MX record in DNS entries?
What does a plus + [...] - How Linux or UNIX Understand which program to run - PART I
This article was organically contributed by monk.
When you are logged in to a Linux server and you type a command. It is the responsibility of the shell to interpret your command. Here I will explain how BASH shell finds out which program to run. The method used by SHELL is straightforward but often creates confusion [...] - Search for all account without password and lock them
For security, reason it is necessary to disable all account(s) with no password and lock them down. Solaris, Linux and FreeBSD provide account locking (unlocking) facility.
Lock Linux user account with the following command:
passwd -l {user-name}
For unlocking the account use:
passwd -u {user-name}
-l : This option disables an account by changing the [...] - FreeBSD: How to write protect important file ( even root can NOT modify / delete file )
The chflags utility modifies the file flags of the listed files as specified by the flags operand.
FreeBSD offers write protection, you need to to set special bit call immutable. Once this bit is setup no one can delete or modify file including root. And only root can clear the File immutable bit.
You must be a [...]
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