There is a domain on the internet named "youpy.fr" that has an MX record
pointing to 127.0.0.2.
> set query=mx
> youpy.fr
Non-authoritative answer:
youpy.fr preference = 10, mail exchanger = 127.0.0.2
If you are running Sendmail on your Solaris system, check /var/log/syslog
and see if there are any messages to/from [EMAIL PROTECTED]
Hackers are attempting to see if they can connect to your system through
loopback.
There are several ways to fix this problem:
1. Make sure Sendmail "anti-spam" features are enabled. Create a
blacklist and add "youpy.fr" into your black list.
2. Create an SMTP Resource (using the SMTP Security Server) and
block messages to/from "youpy.fr".
Good Luck.
On Fri, 20 Feb 2004, [iso-8859-1] Jos� Mar�a Gabald�n wrote:
> Hi guys,
>
> I have a little problem, we have a Solaris running Check Point NG FP3,
> and everything works fine. However in the logs we get continously (maybe
> every 20 seconds or so) a drop log message that says:
> Source: localhost
> Destination: FW_EXTERNAL_IP_ADDRESS
> Source port: http
> Action: DROP
> Reason: Loopback address spoofing.
>
> I guess what does this log entry means, could be some internal hacker
> trying to really spoof the loopback address of the firewall?, or maybe
> is just a misconfiugration?. If so, how can I troubleshoot the problem?
>
> I hope you can help me, thanks in advance!
> _______________________________
>
> Jos� Mar�a Gabald�n
> Network Security Engineer
> email: [EMAIL PROTECTED]
> www.cybertech.com.ve
>
> =================================================
> To set vacation, Out-Of-Office, or away messages,
> send an email to [EMAIL PROTECTED]
> in the BODY of the email add:
> set fw-1-mailinglist nomail
> =================================================
> To unsubscribe from this mailing list,
> please see the instructions at
> http://www.checkpoint.com/services/mailing.html
> =================================================
> If you have any questions on how to change your
> subscription options, email
> [EMAIL PROTECTED]
> =================================================
>
=================================================
To set vacation, Out-Of-Office, or away messages,
send an email to [EMAIL PROTECTED]
in the BODY of the email add:
set fw-1-mailinglist nomail
=================================================
To unsubscribe from this mailing list,
please see the instructions at
http://www.checkpoint.com/services/mailing.html
=================================================
If you have any questions on how to change your
subscription options, email
[EMAIL PROTECTED]
=================================================
