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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [FW-1] DNS Question
On Thu, 2002-05-02 at 08:07, Don wrote: > > 53-TCP is used for zone transfer should be secured 53-UDP can be open to > > all. TIP. > This is not correct. Please read my post below. Yes, any request of more than 512 bytes will be resubmitted using TCP. Zone transfers are initiated over TCP 53 (Stevens v. 1) Doug > > -Don > > > >>>After all the IPSO upgrades and service pack upgrades for our > > >>>Nokia/Checkpoint 4.1 SP5a solution, we started seeing some random > > >>>results with our DNS servers. Sometimes, it would fail on the first > > >>>lookup - but after that it would be ok... my question is simple... for > > >>>the last several years we've had the simple 2 rules for our DNS Servers: > > >>> > > >>>1. Any (Source) DNSServers(Destination) DNS-53(Port) > > >>>2. DNSServers (Source) Any (Source) DNS-53 (port) > > >>> > > >>>The question is simple...are we missing something obvious??? Our DNS > > >>>servers are Windows 2000. > > >>> > > >>When you say DNS-53, do you mean UDP or TCP? You need to allow both in > > >>order for DNS to function properly. Most DNS requests use UDP port 53, > > >>however larger requests use TCP port 53. It may be these larger requests > > >>that are failing. > > >> > > >>-Don > > ================================================= > To set vacation, Out Of Office, or away messages, > send an email to [email protected] > in the BODY of the email add: > set fw-1-mailinglist nomail > ================================================= > To unsubscribe from this mailing list, > please see the instructions at > http://www.checkpoint.com/services/mailing.html > ================================================= > If you have any questions on how to change your > subscription options, email > [email protected] > ================================================= -- Doug Maxwell <[email protected]> Senior Network Engineer, Integralis-US ================================================= To set vacation, Out Of Office, or away messages, send an email to [email protected] in the BODY of the email add: set fw-1-mailinglist nomail ================================================= To unsubscribe from this mailing list, please see the instructions at http://www.checkpoint.com/services/mailing.html ================================================= If you have any questions on how to change your subscription options, email [email protected] =================================================
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