Re: SSH attacks?

From: alann lopes (alann_at_ucsd.edu)
Date: 08/01/04

  • Next message: David D.W. Downey: "SSHd spider attempts" 
    To: <Valdis.Kletnieks@vt.edu>, "'M Shirk'" <shirkdog_linux@hotmail.com>
Date: Sat, 31 Jul 2004 17:21:18 -0700

    On Fri, 30 Jul 2004 07:16:52 EDT, M Shirk said:

    > > If possible, change your SSHD port as
    > > discussed in which you will avoid any
    > > of these types of scans.

    On Fri, July 30, 2004 1:51 PM, Valdis.Kletnieks said:

    > Or even better, use iptables/ipf/whatever to
    > restrict what hosts can connect, if you can. If
    > you know that a connection should only be from
    > within the subnet, throw in a ruleset to allow
    > that, and then a deny for everybody else.

    I agree with Valdis... I've found this methodology
    very useful over the years. And to deal with
    clients from dynamic IPs, about 5 years ago
    I wrote a few scripts and a web interface
    that allows these remote users to register
    their dynamic IPs by authenticating themselves
    against a pop server using APOP. The web
    connection is SSLed. It has worked extremely
    well for years for both myself and a few other
    folks here on campus.

    cheers,

    alann

  • Next message: David D.W. Downey: "SSHd spider attempts"

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