Mailinglist Archive: opensuse-security (520 mails)

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RE: [suse-security] PING when mail arrives
  • From: "Raffy" <suse@xxxxxxxx>
  • Date: Wed, 13 Dec 2000 16:05:40 +0100
  • Message-id: <000701c06516$287b29a0$a26647d4@xxxxxxxx>
Thanks for the help in setting up the firewall rules. I was more concerned
about _WHY_ those pings came at all. Should I contact the admin of that
DNS-Server or is that a normal behaviour? Any comments?

Thanks
Raffy

My original post:

> I block all pings to my mail/dns-server at the firewall. Now in my fw-logs
I found that
> everytime I get a mail from a certain domain, I have two ping-entries in
the logfiles.
> I found that it is the DNS-Server of the sender which is pinging me.
>
> 1. Why does the other DNS-Server ping me? (And send the mail after 2
> failed attempts)




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