You have not fixed your DNS problems
Code:
~$ dig -x 195.178.169.154
; <<>> DiG 9.3.2 <<>> -x 195.178.169.154
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 42787
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;154.169.178.195.in-addr.arpa. IN PTR
;; ANSWER SECTION:
154.169.178.195.in-addr.arpa. 86399 IN CNAME 154.128-25.169.178.195.in-addr.arpa.
;; Query time: 12 msec
;; SERVER: 172.16.3.254#53(172.16.3.254)
;; WHEN: Fri Feb 23 08:29:15 2007
;; MSG SIZE rcvd: 71
Your server is not responding. Blocked port 53? Is it not authoritative for this address range?