Announcement

Collapse
No announcement yet.

Reverse DNS lookup when Ping -a

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • Reverse DNS lookup when Ping -a

    Hello

    I'm having an issue in which when a I do a Ping -a to an IP address I receive a response in the way of the reverse lookup instead of the PC name

    For example when I hit a ping -a 55.58.22.172

    I received a response from 55.58.22.172.in-addr.arpa instead o Juan.DOMAIN.COM

    I don't know why in this happening.

    Any ideas?

    Best regards
    When once you have tasted flight, you will forever walk the earth with your eyes turned skyward, for there you have been and there you will always long to return.

    Leonardo da Vinci

  • #2
    Re: Reverse DNS lookup when Ping -a

    If internal IP address, do you have a reverse DNS zone on your DNS servers?
    If an external IP address then you need to get the ISP to set the PTR record to do a resolution.

    Simon.
    --
    Simon Butler
    Exchange MVP

    Blog: http://blog.sembee.co.uk/
    More Exchange Content: http://exchange.sembee.info/
    Exchange Resources List: http://exbpa.com/
    In the UK? Hire me: http://www.sembee.co.uk/

    Sembee is a registered trademark, used here with permission.

    Comment


    • #3
      Re: Reverse DNS lookup when Ping -a

      IPs are Internal and we have reverse DNS zones on our DNSs Servers.

      I don't know when this begun to happens, maybe a week or 2 ago as per a partner, of course everything was working just fine since forever before.

      This is actually the first time that I see something like this.

      Perhaps should be something with the DHCP (which is in another server)
      When once you have tasted flight, you will forever walk the earth with your eyes turned skyward, for there you have been and there you will always long to return.

      Leonardo da Vinci

      Comment


      • #4
        Re: Reverse DNS lookup when Ping -a

        have you looked at the Reverse zone at all, to see how the record for the IP is configured?
        Please do show your appreciation to those who assist you by leaving Rep Point https://www.petri.com/forums/core/im.../icon_beer.gif

        Comment


        • #5
          Re: Reverse DNS lookup when Ping -a

          Originally posted by tehcamel View Post
          have you looked at the Reverse zone at all, to see how the record for the IP is configured?
          Yes I did that.

          I used nslookup and other tools to check it out.

          BUT I realized something this is happening on just one segment in our network, I checked in the DHCP and in the DNS everything is just fine (compare to other scopes and zones).

          I will check with the networking guides to see what could be happening
          When once you have tasted flight, you will forever walk the earth with your eyes turned skyward, for there you have been and there you will always long to return.

          Leonardo da Vinci

          Comment


          • #6
            Re: Reverse DNS lookup when Ping -a

            Still looking

            Now I realize what I received as a return is the FQDN BUT from the Reverse Lookup Zones instead of the Forward Lookup Zone
            When once you have tasted flight, you will forever walk the earth with your eyes turned skyward, for there you have been and there you will always long to return.

            Leonardo da Vinci

            Comment

            Working...
            X