[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [FW-1] DNS Question
> > 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. > > -Don Let me further clarify: Yes Zone transfers take place ontcp port 53, however ordinary DNS queries that are large also take place via TCP 53. -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] > ================================================= > ================================================= 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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