How to Hide External Dns ip??

[bigcat]

Dear sir:
I want to hide the dns ip address,How to do it!!
Tks ~~~reference below~

Nslookup
set q=mx

reply

Non-authoritative answer:
szs.net.cn MX preference = 5, mail exchanger = spamsqr.szs.com

szs.com nameserver = dns3.szs.net.cn
szs.com nameserver = dns1.szs.net.cn
szs.com nameserver = dns2.szs.net.cn
spamsqr.szs.net.cn internet address = 58.211.253.135
dns1.szs.net.cn internet address = 218.40.149.204
dns2.szs.net.cn internet address = 218.40.149.205
dns3.szs.net.cn internet address = 56.211.253.133

 

[Lanwench [MVP - Exchange]]

In

Dear sir:
I want to hide the dns ip address,How to do it!!
Tks ~~~reference below~

Nslookup
set q=mx

reply

Non-authoritative answer:
szs.net.cn MX preference = 5, mail exchanger = spamsqr.szs.com

szs.com nameserver = dns3.szs.net.cn
szs.com nameserver = dns1.szs.net.cn
szs.com nameserver = dns2.szs.net.cn
spamsqr.szs.net.cn internet address = 58.211.253.135
dns1.szs.net.cn internet address = 218.40.149.204
dns2.szs.net.cn internet address = 218.40.149.205
dns3.szs.net.cn internet address = 56.211.253.133

What exactly are you trying to do, and why?

 

[bigcat]

to prrevent hack to attack!!!
"Lanwench [MVP - Exchange]"

 

[Kevin D. Goodknecht Sr. [MVP]]

Dear sir:
I want to hide the dns ip address,How to do it!!
Tks ~~~reference below~

Nslookup
set q=mx

reply

Non-authoritative answer:
szs.net.cn MX preference = 5, mail exchanger = spamsqr.szs.com

szs.com nameserver = dns3.szs.net.cn
szs.com nameserver = dns1.szs.net.cn
szs.com nameserver = dns2.szs.net.cn
spamsqr.szs.net.cn internet address = 58.211.253.135
dns1.szs.net.cn internet address = 218.40.149.204
dns2.szs.net.cn internet address = 218.40.149.205
dns3.szs.net.cn internet address = 56.211.253.133

You cannot, if you expect this domain to be found by other DNS servers.
That's how the domain is found, by a lookup of the name and IP of the DNS
servers that have the zone for the domain.

 

[Herb Martin]

to prrevent hack to attack!!!

You cannot do this. By definition an EXTERNAL DNS provides a
PUBLIC (externally available) resource so it makes no sense to
even attempt this.

--
Herb

"Lanwench [MVP - Exchange]"

In
What exactly are you trying to do, and why?

 

[Lanwench [MVP - Exchange]]

In

to prrevent hack to attack!!!

Do you want to receive Internet mail? If so, leave it be.

If you don't care about mail, just get rid of your public DNS entries
outright - they're 'public' because they're visible by the public, and they
need to be Use a good firewall, don't expose unneeded and potentially
dangerous ports to the Internet, keep your systems patched, and so forth.

"Lanwench [MVP - Exchange]"

In

What exactly are you trying to do, and why?