LockedOpen DNS servers

Author
moegal
Senior Member
2006/06/18 07:02:09 (permalink)

Open DNS servers

Hi, as you can see I am cleaning up my DNS so my mail clients have better performance when mailing to aol, yahoo, hotmail and the like. I am trying to get rid of all errors on the report generated by dnsreport.com.

My server shows "Open DNS servers"

Can I turn recursion off as the link states? I am using MS DNS on a win2003 server and host many domains. DNS Fix

I ran the hostingcontroller.com domain name and see your DNS servers are open too. Hostingcontroller.com report

Thanks!
#1

12 Replies Related Threads

    HC Team
    Hosting Controller
    RE: Open DNS servers 2006/06/19 07:54:56 (permalink)
    Thank you very much for letting us know. Once we tried to disable it and we got problems in receiving mails. Whenever you disable recursive dns your normal browsing and nslookup may stop on local system I think if this is your key server it should be opened.
    #2
    moegal
    Senior Member
    RE: Open DNS servers 2006/06/19 12:28:10 (permalink)
    Anyone else tried this? I would like to close my DNS server but I want my site to function properly.
    #3
    crnunez
    Premium Member
    RE: Open DNS servers 2006/06/19 13:11:32 (permalink)
    Your sites don¬t have problems but the mail server don¬t work.
    Why mailserver don¬t work if DNS recursion if close?
    Because, neither nslookup work ...

    At this moment this feature don¬t has a light on the way...
    #4
    SupermanInNY
    Junior Member
    RE: Open DNS servers 2006/06/19 15:26:25 (permalink)
    I¬m using SimpleDNSPlus and I have the recursive disabled.
    Actually,. if you go to DNS Stuff, they have a short description on how to disable it properly and still have it running correctly.

    http://www.dnsreport.com/info/opendns.htm

    good luck!
    #5
    moegal
    Senior Member
    RE: Open DNS servers 2006/06/20 04:06:45 (permalink)
    Thanks all.

    SupermanInNY, Did you completely disable recursion or allow for certain IP¬s with simpleDNSPlus?

    I may switch to simpleDNSPLus if this works properly.
    #6
    SupermanInNY
    Junior Member
    RE: Open DNS servers 2006/06/20 04:38:55 (permalink)
    I don¬t know if this is the correct way to do it, but that is how it is setup on my server with a ¬clean¬ dns stuff bill of health.
    Mind you that I don¬t know why am I showing that I have ZERO as the last IP in my class as this is not an IP used on my server. (however, I do have the entire half class).

    http://shev.com/simpleDNS-hc-1.jpg


    HTH.

    -Alon.
    #7
    moegal
    Senior Member
    RE: Open DNS servers 2006/06/20 07:02:09 (permalink)
    SupermanInNY,
    So you have your server set up this way. Does it show as closed dns on dnsreport.com? That is what I am shooting for. Also, you don¬t have any problems with websites or mail resolving to your server? That would be great!
    #8
    moegal
    Senior Member
    RE: Open DNS servers 2007/02/18 03:36:24 (permalink)
    I finally disabled recursion on this server and all appears to work fine. I'll keep you posted. I am using ms dsn on the server and it has the mail server on the same box as well.

    Marty

    Thanks,

    Marty
    #9
    Dhosting.co.uk
    Premium Member
    RE: Open DNS servers 2007/02/18 04:46:59 (permalink)
    Dnsreport is a guide

    http://www.dnsreport.com/tools/dnsreport.ch?domain=gbdns.net

    I really aint that bothered about recursion! If you disable it and your mail server uses it for dns lookups mail will stop working

    __________________
    Chris Daley
    Dwebs Ltd Director :: Company No. 05603664 :: Phone No. (UK) 0870 803 4423
    www.Dhosting.co.uk - Web Hosting, Domain Registration, Windows 2003 NLB Cluster with HC 6.1!!!
    www.Dwebs.ltd.uk - Web Design & Other Services
    My views are my own and not those of my company.
    #10
    moegal
    Senior Member
    RE: Open DNS servers 2007/02/18 08:38:39 (permalink)
    Chris,

    I am not a dns guy, that is why I am here. I am using mailenable pro/ent version and my mail seems to work fine. I have set up multiple test email accounts depending on shared ip or static ip and can send and receive to/from other servers and hotmail just fine.

    It has been around 30 hours and so far so good. Am I missing something here?

    Marty

    Thanks,

    Marty
    #11
    moegal
    Senior Member
    RE: Open DNS servers 2007/02/18 16:01:13 (permalink)
    The company I lease my server from has DNS servers I use in Mailenable in the General Tab in the SMTP settings. This seems to handle the problem.

    I'll keep you posted.

    Marty

    Thanks,

    Marty
    #12
    Dhosting.co.uk
    Premium Member
    RE: Open DNS servers 2007/02/18 17:05:04 (permalink)
    Yep you should be fine with that setup then!

    __________________
    Chris Daley
    Dwebs Ltd Director :: Company No. 05603664 :: Phone No. (UK) 0870 803 4423
    www.Dhosting.co.uk - Web Hosting, Domain Registration, Windows 2003 NLB Cluster with HC 6.1!!!
    www.Dwebs.ltd.uk - Web Design & Other Services
    My views are my own and not those of my company.
    #13
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