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[root@dyordano-16 ~]# host dyordano-16 dyordano-16.lab.eng.brq.redhat.com has address 10.34.56.208 [root@dyordano-16 ~]# host 10.34.56.208 Host 208.56.34.10.in-addr.arpa. not found: 3(NXDOMAIN) As soon as you get reverse DNS record or you put this line: 10.34.56.208 dyordano-16.lab.eng.brq.redhat.com to your /etc/hosts, then I'm pretty confident, this problem will disappear.