alias
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... Most of these systems have a notion that one of the equivalent set of
names is the canonical or primary name and all others are aliases.
...
... RR. A CNAME RR identifies its owner name as an alias, and
specifies the corresponding canonical name in the RDATA ...
... node, no other data should be
present; this ensures that the data for a canonical name and its aliases
cannot be different. This rule also insures that a cached CNAME can be
...
... Domain names in RRs which point at another name should always point at
the primary name and not the alias. This avoids extra indirections in
accessing information. For example, the address to name RR ...
... RRs that indicate that the original query
name was an alias for a name which does not exist.
...
... Aliases ...
...
While attempting to resolve a particular request, the resolver may find
that the name in question is an alias. For example, the resolver might
find that the name given for host name to address ...
... find that the name given for host name to address translation is an
alias when it finds the CNAME RR. If possible, the alias ...
... alias when it finds the CNAME RR. If possible, the alias condition
should be signalled back from the resolver to the client.
...
... it encounters a CNAME. However, when performing the general function,
the resolver should not pursue aliases when the CNAME RR matches the
...
... matches the
query type. This allows queries which ask whether an alias is present.
For example, if the query type is CNAME ...
...
Several special conditions can occur with aliases. Multiple levels of
aliases should be avoided due to their lack of efficiency, but should
not be signalled as an error. ...
...
Several special conditions can occur with aliases. Multiple levels of
aliases should be avoided due to their lack of efficiency, but should
not be signalled as an error. Alias loops and aliases ...
... . Multiple levels of
aliases should be avoided due to their lack of efficiency, but should
not be signalled as an error. Alias loops and aliases which point to
non-existent names should be caught and an error condition ...
... aliases should be avoided due to their lack of efficiency, but should
not be signalled as an error. Alias loops and aliases which point to
non-existent names should be caught and an error condition passed back
...
...
This reply contains an authoritative reply for the alias USC-ISIC.ARPA,
plus a referral to the name servers for ISI.EDU. This sort of reply
...
... query is for the host name of the name
server being asked, but would be common for other aliases.
...