david posted:
>Does anybody know of a way to allow DNS names with "_" in them? I have a
>number of servers with an underscore in them. It is going to take a lot
>of work to make the change by a large number people.
Check RFC-1034 and RFC-1035 for details, but I believe it is illegal to
have underscores in a hostname. BTW, it is hostname, not DNS names.
This means you have to change all of your hostnames to legal names
if you want named to work.
But, you can do the following to each machine:
/etc/hosts:
123.456.789.012 bad_hostname bad-hostname
By adding an alias to the hosts file, you can now have the named entries
point to the good bad-hostname. It still means editing all of the hosts
files on all of the machines. Without doing doing that, you will not be able
DNS any of the machines. By adding the alias, anything that you have that
references the bad name will still work. BUT, if you rely upon named to
resolve it for you... nope, ain't gonna happen.
The above information is my understanding of the situation.
MB
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