RRP, NSI Registry Registrar Protocol

Description Glossary RFCs Publications Obsolete RFCs


Protocol suite: TCP/IP.
Protocol type:Application layer protocol.
Ports:648 (TCP) server.
MIME subtype:
Working groups:

RRP was developed by Network Solutions, Inc. to allow multiple registrars to provide second level Internet domain name registration services in the top level domains (TLDs) administered by the NSI TLD registry.

All RRP implementations MUST provide RRP services over SSL.


add RFC 2832
check RFC 2832
delete RFC 2832
describe RFC 2832
mod RFC 2832
quit RFC 2832
renew RFC 2832
session RFC 2832
status RFC 2832
transfer RFC 2832

Status codes:

200Command completed successfully. RFC 2832
210Domain name available. RFC 2832
211Domain name not available. RFC 2832
212Name server available. RFC 2832
213Name server not available. RFC 2832
220Command completed successfully. RFC 2832
420Command failed due to server error. Server closing connection. RFC 2832
421Command failed due to server error. Client should try again. RFC 2832
500Invalid command name. RFC 2832
501Invalid command option. RFC 2832
502Invalid entity value. RFC 2832
503Invalid attribute name. RFC 2832
504Missing required attribute. RFC 2832
505Invalid attribute value syntax. RFC 2832
506Invalid option value. RFC 2832
507Invalid command format. RFC 2832
508Missing required entity. RFC 2832
509Missing command option. RFC 2832
510Invalid encoding. RFC 3632
520Server closing connection. RFC 2832
521Too many sessions open. RFC 2832
530Authentication failed. RFC 2832
531Authorization failed. RFC 2832
532Domain names linked with name server. RFC 2832
533Domain name has active name servers. RFC 2832
534Domain name has not been flagged for transfer. RFC 2832
535Restricted IP address. RFC 2832
536Domain already flagged for transfer. RFC 2832
540Attribute value is not unique. RFC 2832
541Invalid attribute value. RFC 2832
542Invalid old value for an attribute. RFC 2832
543Final or implicit attribute cannot be updated. RFC 2832
544Entity on hold. RFC 2832
545Entity reference not found. RFC 2832
546Credit limit exceeded. RFC 2832
547Invalid command sequence. RFC 2832
548Domain is not up for renewal. RFC 2832
549Command failed. RFC 2832
550Parent domain not registered. RFC 2832
551Parent domain status does not allow for operation. RFC 2832
552Domain status does not allow for operation. RFC 2832
553Operation not allowed. RFC 2832
554Domain already registered. RFC 2832
555Domain already renewed. RFC 2832
556Maximum registration period exceeded. RFC 2832
557Name server locked. RFC 3632



[RFC 2832] NSI Registry Registrar Protocol (RRP) Version 1.1.0.

[RFC 3632] VeriSign Registry Registrar Protocol (RRP) Version 2.0.0.


Obsolete RFCs:

Description Glossary RFCs Publications Obsolete RFCs