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Re: warning message from portsentry



On 2001.12.20 19:33 Pollywog wrote:
On 2001.12.20 19:04 rick@niof.net wrote:
What does this warning mean and what is causing it?

> Dec 20 12:02:10 tc portsentry[540]: attackalert: Possible stealth scan
> from unknown host to TCP port: 111 (accept failed)

I get it when I run a 2.4 kernel but not when I run a 2.2 kernel so I
believe it's something internal to my system. There are hundreds of them
every hour.


That appears to be Portmapper. If you are not using it, disable it or remove it. Otherwise go into your Portsentry config and remove port 111 from the list of ports Portsentry monitors.

Instead of removing the port from the list of ports being watched, you can also add the host to portsentry.ignore if you think that best.
In mine, I have:

# IPs from /etc/portsentry/portsentry.ignore.static:
127.0.0.1
0.0.0.0
192.168.1.1


I am not sure why 0.0.0.0 is present and I believe it was added by debconf but it doesn't seem to hurt.


--
Andrew





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