The Directory Services portion of the InterNIC also makes RFCs available via electronic mail, WAIS, and gopher. The text version is sent. Several sites make an index of RFCs available. Even though this is a service, rather than a document, we'll discuss it in this section because it is so closely tied to RFC information. RFC-INFO is an email based service to help in locating and retrieval of RFCs, FYIs, STDs, and IMRs.
All input is case independent.
In addition, the RFC Index maintained at the ds.internic.net repository notes the status of each RFC listed. FYI stands for For Your Information. FYIs are a subset of the RFC series of online documents. FYI topics may range from historical memos on 'Why it was was done this way' to answers to commonly asked operational questions. The FYIs are intended for a wide audience.