[sudo-users] restricting users
tony.chamberlain at lemko.com
tony.chamberlain at lemko.com
Wed Aug 5 20:26:33 EDT 2009
In other words, I can't make it so it denies them for a time?
-----Original Message-----
From: Stier, Matthew [mailto:Matthew.Stier at us.fujitsu.com]
Sent: Wednesday, August 5, 2009 04:50 PM
To: tony.chamberlain at lemko.com
Subject: RE: [sudo-users] restricting users
Welcome to a denial of service attack.
Step away from your keyboard for a few minutes, and mischievous hands
will have you locked out of sudo.
I've always preferred Sun Microsystems, choice on this matter. Failed
logins take 45 seconds to exit. Quick enough for interactive users, but
drastically slows down program attacks.
-----Original Message-----
From: sudo-users-bounces at courtesan.com
[mailto:sudo-users-bounces at courtesan.com] On Behalf Of
tony.chamberlain at lemko.com
Sent: Wednesday, August 05, 2009 4:17 PM
To: sudo
Subject: [sudo-users] restricting users
They asked me to do something so that if this happens:
$ sudo ls
Password:
Sorry, try again.
Password:
Sorry, try again.
Password:
Sorry, try again.
sudo: 3 incorrect password attempts
maybe twice, then the next time it either just locks up or says
something
like "too many password attempts. You are blocked for 2 hours".
Anyway to do this?
On a similar note, using visudo I put
Defaults insults
which is supposed to insult you when you enter a wrong password, but it
is
still saying " Sorry, try again.". DO you know why?
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