Re: Possible Cracker

From: Glynn Clements (glynn@sensei.co.uk)
Date: Fri Sep 22 2000 - 16:09:01 EST


SoloCDM wrote:

> I went to whois and found the location of the offenders.

Or maybe (more likely) you just found the location of another of the
boxes that they've cracked.

> I had another attack form a different source:
>
> ftpd[8877]: getpeername (in.ftpd): Transport endpoint is not connected
> telenetllc03.erols.com

This isn't necessarily an attack; this just means that the connection
was terminated shortly after it was established (e.g. the user clicks
on a link, changes their mind, then hits the "Stop" button).

> I just added the following line to /etc/hosts.deny. Will it stop any
> of the attacks?
>
> in.telnetd, in.ftpd, in.tftpd, in.fingerd: ALL EXCEPT LOCAL,
> .[domain].net

hosts.deny should contain "ALL: ALL"; you then explicitly allow access
via hosts.allow.

-- 
Glynn Clements <glynn@sensei.co.uk>
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