On Tue, Apr 10, 2012 at 2:56 AM, rams <brames...@gmail.com> wrote: > Hi, > When i queried domain with capital letters , In answer section domain name > is displaying small letters. Is it expected? any RFC for this? > > dig @localhost D.ashwintrail.com > > > ; <<>> DiG 9.2.4 <<>> @localhost D.ashwintrail.com > ; (1 server found) > ;; global options: printcmd > ;; Got answer: > ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 23469 > ;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 0 > > ;; QUESTION SECTION: > ;D.ashwintrail.com. IN A > > ;; ANSWER SECTION: > d.ashwintrail.com. 86400 IN A 2.3.4.5 > > ;; AUTHORITY SECTION: > ashwintrail.com. 86400 IN NS ramesh.com. > ashwintrail.com. 86400 IN NS ramesh1.com. > > ;; Query time: 0 msec > ;; SERVER: #53 > ;; WHEN: Tue Apr 10 02:19:00 2012 > ;; MSG SIZE rcvd: 105 > > Thanks & Regards, > Ramesh
Since the very first DNS RFCs, DNS is case preserving but not case sensitive. That means that a query with differences in case will return a match with the appropriate data, just the same as when case matches, but will return the case of the authoritative record. See RFC1034 3.1 for a general description or RFC1035, section 2.3.3 for detail. -- R. Kevin Oberman, Network Engineer E-mail: kob6...@gmail.com _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
