BHOLMES@CMS.CC.WAYNE.EDU (Brian Holmes) (01/11/90)
I found this in the logs of the IBMTCP-L list. >>Will Zone Transfer be supported in NAMESRV? >> >It is currently supported. However, some domain name servers have >recently started requesting a zone transfer on the same tcp connection >which requested the SOA resource record. The reason for this change >is probably to save on overhead. Multiple queries are permitted. >However, the format of such queries is not first one query followed >by another, but to package the two queries together with a single >header section indicating processing required for two queries. > >Mimi Zohar >IBM T.J. Watson Research Center >Not knowing the background, I can't comment on the reasons, but >packaging to queries in one DNS packet, whether carried by UDP or TCP >is non-standard. I would recommend against this practice. It is not >interoperable with several other implementations. > >I am somewhat perplexed by packaging the SOA query with the AXFR >anyway. The whole point of the SOA query is to decide whether or not >you need the AXFR, and you don't know until you get the response. > >paul mockapetris I believe this is where my problem is occuring. Are there any plans for changeing the way FAL handles SOA querys followed by AXFR querys? Brian Holmes UCC Operating Systems & Communications PHONE: (313) 577-3750 FAX=577-5626 Wayne State University BITNET: BHOLMES@WAYNEST1 5925 Woodward INTERNET: BHOLMES@CMS.CC.WAYNE.EDU Detroit, MI 48202 U.S.A