have asked to perform below activities please guide how to do perform below activities.

Make sure the Guest account is disabled or deleted.-
Disabled or deleted anonymous access. –
Set stronger UserID policies—
Set Key Sensitive UserID By Default enable in linux
Combination of numbers, letters and special characters (*,!,#,$,etc.)
Status of UserID
Type
User Name
Set stronger password policies
Set the minimum password length to at least 8 characters.
Set Key sensitive
Set a password not equal to UserID
Combination of numbers, letters and special characters (*,!,#,$,etc.)
Force reset password every 30 days
Set a password history maintenance (using the "Remember passwords" option), recommended value: 12.
Blocking user ID after three failed attempts (set Status of UserID to Blocked)
Configure the Administrator account
Rename the account to a no obvious name (e.g., not "admin," "root," etc.).
naresh kumar

Don't hijack threads. I've pruned your post and stuck it here in its own, new thread. Also, while LQ is at times quite flexible when it comes to providing assistance with homework-type questions, what you've got here is abusive IMO. You basically dropped a list of questions and left it up to the LQ community to handle everything for you. That's not how things work here. I ask you to re-post, this time providing details about what specific approaches you've tried so far, and where you ran into trouble. While the LQ community can surely give you a hand, we will NOT do your homework for you. Thread closed.