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In file /etc/security/limits.conf the maxlogins field refer to what?

If I set

 "user1            hard    maxlogins     2"

Does this mean "user1" can have two concurrent login at a time or He can login only twice - still the system reboot again?

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this issue ,i found was "logged in as user1 twice" While logging for third time it said "Too many logins" - So i logged out from previous two logins ...even now it says the same error msg. –  lakshmipathi Sep 10 '10 at 6:45
its bug,now fixed - bugzilla.redhat.com/show_bug.cgi?id=632568 HTH –  lakshmipathi Sep 14 '10 at 6:45

2 Answers 2

up vote 1 down vote accepted

Two logins at a time.

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No that's not working...I logged as "user1" in tty1 and tty2 ...while trying to login as user1 in tty3 it says "Too many login" So far good. –  lakshmipathi Sep 10 '10 at 6:37
But When i logged out of tty1 and tty2 ...even now it says too many logins –  lakshmipathi Sep 10 '10 at 6:37
Then there might something broken in your PAM config. –  Janne Pikkarainen Sep 10 '10 at 7:21
Good point,I was messing up /etc/pam.d/login file. thanks,I'll check it –  lakshmipathi Sep 10 '10 at 7:25

Possibly not, X sessions count as at least one login, as do terminal windows, and I believe shell scripts. In all likelihood, a hard limit of two there is way too few, I would suggest limiting the number of running processess vs the number of logins.

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reproduce steps - (a)who | grep user1 (b) user1 logs into tty1 (c) user1 logs into tty2(d)who | grep user1 (e)user1 log to tty3 fails (f)logout from tty1 and tty2 (g)who | grep user1 didn't show user1 (h)log into tty3 or tty1 ..it will shortly display "Too many logins". –  lakshmipathi Sep 10 '10 at 12:17
I'm not sure why this happens!! Even if i increase session to 5 ...once 5 i login to 5 session as user1 ...after that i can't login evenafter logout from early session. –  lakshmipathi Sep 10 '10 at 12:18

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