Lock file

[juno2]

I am not understand the below difference of UX and linux system,

I tried the UX allow two users change the password at the same time by the command â passwdâ , but the linux canâ t , because linux donâ t allow two users concurrent update the file /etc/passwd , it will lock the passwd file ( check the file /etc/.pwd.lock ) when one user is updating the password . However , I do think two users change password at the same time is very common situtation , can suggest is it possible to disable the lock file function ? so that the users can change the password at the same time ? I know this is linux side problem , but UX concept whether can apply to the linux block ?

[Rajeev Shukla]

Hi Juno2,

I am sorry but you post a lot of questions but dont bother to look back at people who take time to give solutions.
You'r last 2 posts are still unasigned with points.
I hope you understand...

Cheers
Rajeev

[juno2]

Yes , thx for reminding me , I will assign the pt ASAP.

[T G Manikandan · Accepted solution]

you are right! When a processes accesses the password file /etc/.pwd.lock file is created, so that other processes do not acccess the file.

you can do a

#fuser /etc/.pwd.lock
identify the process and then terminate them.

I don't think you can disable this!

[juno2]

HI TG,

I am strange why UX block can do that ,
I tried your method
# fuser /etc/.pwd.lock , but no output , can suggust what can i do ? thx.

[juno2]

Thx reply, can suggest how can I allow all users to change password at the same time ? thx.

[Thierry Poels_1]

Hi,

the password file is locked during update for consistency reasons. If two users would simultaneously update the password file, the first update might be overwritten by the second user.

On the other hand: what is the chance that two or more users change their passwords at the same moment?

regards,
Thierry Poels.

[T G Manikandan]

Is there any file like /etc/ptmp

if present,rename the file and try again