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  1. #1
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    Strange Hostname being resolved

    I have a RedHat server running Nagios. When i ping one of the Windows hosts on our LAN it resolves the wrong name?

    I run the following:
    [root<at>localhost /]# ping hostA.domain.com

    it returns:

    PING hostA.geneva-trading.com (192.168.105.49) 56(84) bytes of data.
    64 bytes from hostB.geneva-trading.com (192.168.105.49): icmp_seq=1 ttl=127 time=0.197 ms
    64 bytes from hostB.geneva-trading.com (192.168.105.49): icmp_seq=2 ttl=127 time=0.187 ms
    64 bytes from hostB.geneva-trading.com (192.168.105.49): icmp_seq=3 ttl=127 time=0.209 ms

    ??? Why does it return hostB??? It seems to resolve all other hosts I have tried OK. I looked at the Arp, Hosts file and double checked the resolv.conf; everything looks great! I don't get it... Is there another location where resolvers are stored?

    Thanks!
    Tony




  2. #2
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    You will want to look at the server that is acting as your DNS resolver. That information would likely be coming from that server.

  3. #3
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    Turned out to be the reverse record. I actually turned on DNS scavenging a number of months back for the forward lookup... Didn't realize it needed to be enabled for reverse separately. All seems to be well now. Thanks!

  4. #4
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    HOw to cleaer cahce in Centos Direct command

 

 

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