Please whitelist cPanel in your adblocker so that you’re able to see our version release promotions, thanks!

The Community Forums

Interact with an entire community of cPanel & WHM users!

Trying to setup NameServer to listen for DNS queries on two IPs

Discussion in 'Bind/DNS/Nameserver' started by RangerRik1, Aug 13, 2015.

  1. RangerRik1

    RangerRik1 Registered

    Joined:
    Aug 13, 2015
    Messages:
    4
    Likes Received:
    0
    Trophy Points:
    1
    Location:
    Florida
    cPanel Access Level:
    Root Administrator
    Hi Everyone --- Question: I'd like to setup my cloud server to listen and respond to dns queries on two separate IPs. I have installed both IPs into the server and added my root DNS zone (mydomain.com) - In that zone file I have created a-record entries for ns1.mydomain.com -> First IP and ns2.mydomain.com -> Second IP.

    When I query the first (original server ip) at ns1.mydomain.com I get an expected response for "authoritative" domains. I do this from my windows-pc using "nslookup hostname ns1.mydomain.com".

    However when I query the second ip, ns2.mydomain.com I get no response from the nameserver. "DNS Request Timed Out".

    It's like my cloud/whm server is not "listening" on the second ip even though I added both IPs at WHM --> Server Configuration --> Basic cPanel & WHM Setup.

    Any idea how I can configure my cloud server to respond to DNS queries on the second ip?
     
    #1 RangerRik1, Aug 13, 2015
  2. cPanelMichael

    cPanelMichael Technical Support Community Manager
    Staff Member

    Joined:
    Apr 11, 2011
    Messages:
    44,806
    Likes Received:
    1,898
    Trophy Points:
    363
    cPanel Access Level:
    Root Administrator
    Twitter:
    Hello :)

    Have you tried querying the IP address itself instead of NS2, to verify if it responds?

    Thank you.
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
    #2 cPanelMichael, Aug 14, 2015
  3. RangerRik1

    RangerRik1 Registered

    Joined:
    Aug 13, 2015
    Messages:
    4
    Likes Received:
    0
    Trophy Points:
    1
    Location:
    Florida
    cPanel Access Level:
    Root Administrator
    Yes--same result, no response.

    Any help is much appreciated!
     
    #3 RangerRik1, Aug 14, 2015
  4. lldeepakll

    lldeepakll Well-Known Member

    Joined:
    May 20, 2012
    Messages:
    85
    Likes Received:
    3
    Trophy Points:
    58
    Location:
    India
    cPanel Access Level:
    Root Administrator
    Hi,

    Make sure that 2nd IP is active/online or not. Just check by pinging both the IPs from your local system.


    Thanks
     
    #4 lldeepakll, Aug 15, 2015
    Last edited: Aug 15, 2015
  5. RangerRik1

    RangerRik1 Registered

    Joined:
    Aug 13, 2015
    Messages:
    4
    Likes Received:
    0
    Trophy Points:
    1
    Location:
    Florida
    cPanel Access Level:
    Root Administrator
    I have a virtual cloud server with IX Web Hosting... Cent/OS and added a designated second IP to the server using IX provisioning process and WHM --> Server Configuration --> Basic cPanel & WHM Setup.

    I am testing it from my home ISP connection. I have noticed first IP pings but second does not. I am doing my nslookup and ping tests from my pc/laptop at home. The server is responding to DNS queries on the first/original IP but not on the new/second IP. It's like the second ip isn't assigned to the server/right services -or- is being blocked?

    Was hoping I could get some help here before having to purchase support with IX... I can't seem to find any DOCS on the web that are helping...

    I will SSH/putty into the server and try to ping the second ip from the server itself...???

    When I remote into the server (SSH/putty) - I CAN SUCCESSFULLY ping both the first and second IPs...

    Any clues???
     
    #5 RangerRik1, Aug 15, 2015
    Last edited by a moderator: Aug 15, 2015
  6. lldeepakll

    lldeepakll Well-Known Member

    Joined:
    May 20, 2012
    Messages:
    85
    Likes Received:
    3
    Trophy Points:
    58
    Location:
    India
    cPanel Access Level:
    Root Administrator
    So the second IP is not pinging. Have you added the IP using option "Home » IP Functions » Add a New IP Address" in WHM ? If not then add the IP using this method and if IP is already there then try remove and re-add the IP. Also make sure that you are giving correct subnet mask.

    If the IP still not ping then try restarting the ipaliases service using following command.

    /etc/init.d/ipaliases restart

    If still same problem, you can try restarting the network and ipaliases services. Assuming you have console access to vps (Just for safe side) in case the network service get stucks due to some reason.

    /etc/init.d/network restart
    /etc/init.d/ipaliases restart

    Thanks
     
    #6 lldeepakll, Aug 15, 2015
  7. RangerRik1

    RangerRik1 Registered

    Joined:
    Aug 13, 2015
    Messages:
    4
    Likes Received:
    0
    Trophy Points:
    1
    Location:
    Florida
    cPanel Access Level:
    Root Administrator
    I removed and re-added the ip address. Still can't ping. Provisioning panel said to add ip with /32 so I used subnet mask 255.255.255.255 - is that correct?

    I restarted the entire server too ... still can't ping.
     
    #7 RangerRik1, Aug 16, 2015
  8. cPanelMichael

    cPanelMichael Technical Support Community Manager
    Staff Member

    Joined:
    Apr 11, 2011
    Messages:
    44,806
    Likes Received:
    1,898
    Trophy Points:
    363
    cPanel Access Level:
    Root Administrator
    Twitter:
    Hello :)

    I suggest consulting with your data center or hosting provider if the IP address fails to respond. It's possible there's a networking issue they will need to address.

    Thank you.
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
    #8 cPanelMichael, Aug 17, 2015
(You must log in or sign up to post here.)
Loading...
Similar Threads - Trying setup NameServer
  1. webstuff

    Trying to find the cause of a php script exe:/usr/bin/php cmd:/usr/bin/php

    webstuff, Jul 10, 2018, in forum: Security
    Replies:
    3
    Views:
    119
    cPanelLauren
    Jul 10, 2018
  2. gutterboy

    SOLVED Trying to understand mail exchanger

    gutterboy, Jul 6, 2018, in forum: E-mail Discussion
    Replies:
    6
    Views:
    208
    cPanelLauren
    Jul 9, 2018
  3. orgasmicsweets

    Trying to install but having issues

    orgasmicsweets, May 16, 2018, in forum: General Discussion
    Replies:
    1
    Views:
    128
    cPanelLauren
    May 16, 2018
  4. Cybersalt

    Trying to find Cause of CBL blocking

    Cybersalt, Apr 20, 2018, in forum: E-mail Discussion
    Replies:
    7
    Views:
    598
    planetc
    Apr 24, 2018
  5. keat63

    trying to block tld with exim custom filter

    keat63, Mar 20, 2018, in forum: E-mail Discussion
    Replies:
    15
    Views:
    565
    keat63
    Apr 3, 2018

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Accept Learn More...
    Dismiss Notice