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$ dig @8.8.8.8 -x 207.68.222.222
; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.62.rc1.el6_9.5 <<>> @8.8.8.8 -x 207.68.222.222
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 16740
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;222.222.68.207.in-addr.arpa. IN PTR
;; ANSWER SECTION:
222.222.68.207.in-addr.arpa. 1799 IN PTR 207-68-222-222.nctc.net.
;; Query time: 167 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Wed Feb 21 14:10:17 2018
;; MSG SIZE rcvd: 82
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$ dig @207.68.222.222 -x 8.8.8.8
; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.62.rc1.el6_9.5 <<>> @207.68.222.222 -x 8.8.8.8
; (1 server found)
;; global options: +cmd
;; connection timed out; no servers could be reached
Try renaming resolv.conf to resolv.conf.orig, then creating a new resolv.conf with the following contents:
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; generated by /sbin/dhclient-script
nameserver 8.8.8.8
nameserver 8.8.4.4