underscore in domain name

[John W]

Couple of customers have underscores in their domain names (worked on a different server for the past 15+ years), but Plesk refuses to accept them. Is there a workaround? Thanks.

 

[IgorG]

I suppose that this is due to meet the requirements of the document RFC952:

1. A "name" (Net, Host, Gateway, or Domain name) is a text string up
to 24 characters drawn from the alphabet (A-Z), digits (0-9), minus
sign (-), and period (.). Note that periods are only allowed when
they serve to delimit components of "domain style names".

 

[scsa20]

Plus all the domain name registrations I went to removes the underscore when I tested, which just goes back to the requirements of RFC952 that IgorG posted. You might want to make sure that sure that they didn't mean dash.

The only time I see an underscore in the domain is when setting up a SRV record (autodiscover_._tcp.domain-name.com) or as a TXT record for a domain key. Is this what you might mean? if so, it would be added as a DNS record and not as a domain.

 

[John W]

http://dejager_lab.bwh.harvard.edu definitely works. It has for the past 15+ years. It's currently being forwarded to the new address with the dash on the Plesk server. Any workarounds? Thanks.

 

[IgorG]

http://dejager_lab.bwh.harvard.edu definitely works. It has for the past 15+ years. It's currently being forwarded to the new address with the dash on the Plesk server. Any workarounds? Thanks.

I suppose that this can be done with corresponding CNAME DNS record where underscore is allowed.