Mailinglist Archive: opensuse-security (520 mails)

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PING when mail arrives
  • From: Raffael Arthur Marty <suse@xxxxxxxx>
  • Date: Tue, 12 Dec 2000 13:36:58 +0100
  • Message-id: <3A361BEA.82968471@xxxxxxxx>
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)
2. Should I allow ping to the mail/dns server? What implications would
that have?



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