How to remove password expiry in HPUX HP Unix

Know how to remove password expiry in HPUX trusted system. This is helpful in setting app accounts that need non-expiry passwords to run.

Requirement

Every account on the system has a password expiry period defined. Password expiry period means after that period (defined in days) account owner should change the account’s password. Some applications/users are required to have the same password for a longer duration. This requires them to exit from the system-wide password expiry policy. So that those accounts can run a lifetime without the need for changing their passwords.

Also read: How to remove password expiry in Linux

How to do it

Firstly check current set values for the account using getprpw.

# /usr/lbin/getprpw username
uid=114, bootpw=NO, audid=67, audflg=1, mintm=90, maxpwln=-1, exptm=90, lftm=90,, syspnpw=DFT, rstrpw=DFT, nullpw=DFT, admnum=-1, syschpw=DFT, sysltpw=DFT, timeulogin=-1, uloginy=-1, umaxlntr=-1, alock=NO, lockout=0000000

We are modifying the below parameters for an account in order to achieve our goal.

1. exptm: Password expiration time
2. expwarn : Password expiration warning time
3. lftm : Password lifetime
4. mintm : Time between password changes

All the above parameters are always defined in days. Setting them to -1 disables that password aging rule for a specified account. All the above parameters can be individually tweaked like below.

/usr/lbin/modprpw -l -m exptm=-1 username
/usr/lbin/modprpw -l -m expwarn=-1 username
/usr/lbin/modprpw -l -m lftm=-1 username
/usr/lbin/modprpw -l -m mintm=-1 username

They even can be tweaked in a single command like on below :

/usr/lbin/modprpw -l -m mintm=-1,exptm=-1,expwarn=-1,lftm=-1 username

Here -l switch makes changes to the local account only. It is advised to use -l switch with all the above options per the man page of modprpw.

Now see values newly set in the account. You can notice values are tweaked to -1 now.

# /usr/lbin/getprpw username
uid=114, bootpw=NO, audid=67, audflg=1, mintm=-1, maxpwln=-1, exptm=-1, lftm=-1,T, syspnpw=DFT, rstrpw=DFT, nullpw=DFT, admnum=-1, syschpw=DFT, sysltpw=DFT, timculogin=-1, uloginy=-1, umaxlntr=-1, alock=NO, lockout=0000000