On May 6, 2008, Gilles wrote:
> Is there a way to configure SSHd, so that the wait time between login
> attempts increases after X failed tries?
I run sshd via inetd rather than as a stand-alone daemon. inetd provides
optional rate limiting functionality. For instance. putting
ssh stream tcp nowait/20/4/10 root /usr/sbin/sshd sshd -i
into /etc/inetd.conf set a limit of
* 20 overall ssh connections
* 4 connection attempts per minute
* at most 10 connections from a single IP
This works very well on a personal server, not sure how it scales up.
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