Password Aging

[Trevor]

Write the command that will disable password aging for a specific
Linux user account.

[Maximus_el]

hi

# usermod -L usrname

[Tracy_Baker]

I suppose that, yes, this will "prevent password aging."

It will also prevent the user from being able to log in (and is equivalent to # passwd -l user).

[Tracy_Baker]

If you mean that you do not want the password from expriring (aging out), you could use:

# chage -M 99999 <username>

99999, incidentally, is the default value, derived from the /etc/login.defs file when the user account is created (which can be set to something different by changing PASS_MAX_DAYS in the file).

It's 99,999 days - 274.78 years - so, unless you wanna live for another 274.78 years, it effectively means your password will never expire.

update: I just double checked the man pages for chage, and it says this, "Passing the number -1 as MAX_DAYS will remove cheching a password's validity," so this appears to be the better coice (in case I do live longer than 274.78 years):

# chage -M -1 <username>

[Trevor]

Once again you saved me some keystrokes in typing the 
answer Tracy.

Your chage   -M   99999  <username>  command is the direction
I was trying to lead folks!!!

Thanks for doing my work!!!!

[Chetan_Tiwary_]

Here, pay attention to how to prevent account and password both  from expiration using chage command :

[Maximus_el]

thank you for the detailed explanation.