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Hi,
Forward DNS is not pointing to the correct IP, Where as Reverse DNS pointing to the correct IP.
How to change the Forward DNS to point to correct IP:89.204.217.51 ?
Forward DNS:
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# nslookup mail1.seftec.ie
Server: dns1.o2.ie
Address: 62.40.32.33
Non-authoritative answer:
Name: mail1.seftec.ie
Address: 89.204.215.233
Reverse DNS :
===========
# nslookup 89.204.217.51
Server: dns1.o2.ie
Address: 62.40.32.33
Name: mail1.seftec.ie
Address: 89.204.217.51
Regards,
Appu.
I get very different results from you:
# nslookup mail1.seftec.ie
Server: 127.0.0.1
Address: 127.0.0.1#53
Non-authoritative answer:
Name: mail1.seftec.ie
Address: 89.204.217.51
# nslookup 89.204.217.51
Server: 127.0.0.1
Address: 127.0.0.1#53
Non-authoritative answer:
51.217.204.89.in-addr.arpa name = mail1.seftec.ie.
Authoritative answers can be found from:
217.204.89.in-addr.arpa nameserver = dns2.o2.ie.
217.204.89.in-addr.arpa nameserver = dns1.o2.ie.
dns1.o2.ie internet address = 62.40.32.33
dns2.o2.ie internet address = 62.40.32.34
may be you have some old data in the NS you use
reboot your NS or use a different one if your results come from your ISP-NS