How to block IP Neigbours DNS query?

Thread Tools Search this Thread
Special Forums IP Networking How to block IP Neigbours DNS query?
# 1  
Old 12-26-2013
Network How to block IP Neigbours DNS query?

Hi all,

Need help. Is there any way to block to query all the domain names resolving on same IP. By using tools like I want to show only the domain name if I use IP it should not show any domain name.
# 2  
Old 12-26-2013
Is this a web query block, an IP traffic block, or a DNS query block?
# 3  
Old 12-27-2013
I think it is DNS query block. I don't what to show external work about my DNS record and A-Record assign to that IP.

If I use the tool to DNSStuff it should show blank in DNS record to secure how may domain I am using for that IP
I think it is DNS query block. I don't what to show external world about my dns record and A-Record assign to that IP
# 4  
Old 12-27-2013
In a right world, there would be one A record and one PTR for the ip-name pair. For aggressive web hosting, many names resolve to the same IP, either by CNAME or, sadly, additional A records. Is this a need to block web access to all names that go to one IP? An IP block seems more normal. However, for a group of hosts all using the same DNS servers to reach the Internet, you can place CNAME or A records closer to them that will resolve the name to a different address. I once helped a customer set up an AOL proxy on their firewall that way. Everyone behind the firewall thought the firewall host was also some AOL host due to the misplaced A record on the firewall DNS, and the AOL port was a pass through to the real AOL servers.
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Linux is not appending domain name in DNS query

In my /etc/resolv.conf file there is domain name defined. But when I do nslookup the domain name is not appended. Why? (18 Replies)
Discussion started by: broy32000
18 Replies

2. UNIX for Beginners Questions & Answers

What determines DNS will query IPV6 address?

When I do simple nslookup it does not generate any query for IPV6 (AAAA). But sometimes I see DNS query for both A and AAAA are generated. What decides this? The reason I do not want AAAA query is in most of the cases AAAA records are absent. Hence, if one DNS server fails, the clients keeps... (1 Reply)
Discussion started by: broy32000
1 Replies

3. Solaris

DNS client added to DNS server but not working

Hi, We have built a new server (RHEL VM)and added that IP/hostname into dns zone configs file on DNS server (Solaris 10). Reloaded the configuration using and added nameserver into resolv.conf on client. But when I am trying nslookup, its not getting resolved. The nameserver is not able to... (8 Replies)
Discussion started by: snchaudhari2
8 Replies

4. Red Hat

Query about Block Level Migration

Hi We are planning to migrate to a new SAN storage environment. Our RHEL5.5 servers boot over SAN. 1. I was wondering if using "lvm mirroring" or "pvmove" would be a solution. 2. Do they do block level transfer? Thanks (1 Reply)
Discussion started by: ikn3
1 Replies

5. Red Hat

DHCP & DNS - Clients get IP but don't register in DNS

I am trying to setup a CentOS 6.2 server that will be doing 3 things DHCP, DNS & Samba for a very small office (2 users). The idea being this will replace a very old Win2k server. The users are all windows based clients so only the server will be Linux based. I've installed CentOS 6.2 with... (4 Replies)
Discussion started by: FireBIade
4 Replies

6. Red Hat

DNS A-Record point to another DNS

Hi, I have a question on how to point the DNS server-1's A-record to second DNS server, which is DNS server-2. So, the computer can access other domain which only listed in the DNS server-2. The scenario is as follow: How to configure this... (4 Replies)
Discussion started by: Paris Heng
4 Replies

7. UNIX for Advanced & Expert Users

DNS server choice: Windows DNS vs Linux BIND

I'd like to get some opnions on choosing DNS server: Windows DNS vs Linux BIND comparrsion: 1) managment, easy of use 2) Security 3) features 4) peformance 5) ?? I personally prefer Windows DNS server for management, it supports GUI and command line. But I am not sure about security... (2 Replies)
Discussion started by: honglus
2 Replies

8. Shell Programming and Scripting

Query Oracle tables and return values to shell script that calls the query

Hi, I have a requirement as below which needs to be done viz UNIX shell script (1) I have to connect to an Oracle database (2) Exexute "SELECT field_status from table 1" query on one of the tables. (3) Based on the result that I get from point (2), I have to update another table in the... (6 Replies)
Discussion started by: balaeswari
6 Replies

9. Solaris

Which lookup tool query both hosts and DNS server?

As i understand, host/nslookup/dig only query DNS server to resolve name to ip. ping can query both, but it seems if ping is blocked, ping won't return IP. traceroute can query both, but i am not able to test if traceroute is blocked, What is the result? Neither ping/traceroute is... (3 Replies)
Discussion started by: honglus
3 Replies

10. Solaris

Solaris DNS Client For Microsoft DNS Server

hey guys, how to add soalris box as a microsoft DNS Client ? and how to register in the microsoft DNS ?? i managed to query from the DNS server after adding /etc/resolve.conf and editing /etc/nsswitch.conf but i need to register the soalris server (dns Client) into Microsoft DNS automatically.... (3 Replies)
Discussion started by: mduweik
3 Replies
Login or Register to Ask a Question