Alias Name vs. Host Name

[knebb]

Hi,

in firewall I make use of "Aliases". It is not allowed to use an alias name with an underscore ("_" - for what reason?).

Now I created an alias which points to a hostname. Which is configured in UnboundDNS as overwrite. In Unbound, I can not create a hostname with a Hyphen ("-").

This is at least somehow confusing as I am always getting dizzy of which hostname is now the correct one.

Regarding to RFC 2181 there is no such limitation on the hostname. Hostname can have either "-" or "_".

There should be either in alias more characters be allowed or let unbound allow correct hostnames.

Any thoughts?

/KNEBB

[Patrick M. Hausen]

Works here ...

[knebb]

Sorry,

you are right. I mixed it up. It was the other way.
No underscore in Unbound, no Hyphen in Aliases.

Sorry for confusion...
/KNEBB

[Patrick M. Hausen]

Underscores are forbidden in domain names. Possibly someone implemented an overly strict check.

[knebb]

Well, this can be discussed. According to latest RFC (see link in first post) there are no such limitations in DNS!
[Yes, many clients and even servers still implement the "old" limitation but shouldn't we focus on the up-to-date ones?]

Still no answer why such a limitation exists in the alias tables?

/KNEBB

[Patrick M. Hausen]

Thanks - seems like I need a firmware update for that part of my brain  ;) Been doing DNS since BIND 4 ...