ldapv3.pdf 7947KB Apr 17 2013 11:30:42 AM - mirror omadata

1123 vs. 2181
SRV protocol and service names typically begin with an underscore
character.
According to RFC 1123 the first character of a DNS value must be either a
letter or a digit. By convention DNS names are ASCII.
RFC 2181 states that a DNS value can be any binary string, and has no
neccesary relationship to ASCII. The most common character set for DNS
values is UTF-8, a Unicode character set that is a superset of ASCII.
UNIX stalwarts bemoan this as a Microsoft assult upon standards.
In actuality, since the Internet is global and all modern systems understand
Unicode (which is a good thing), RFC 2181 just makes good sense.