LINKS

The LINKS command is used to list known server links.
Listing Server Links
Usage: LINKS [<remote server> [<server mask>]]
<remote server> (Optional) The server to ask for its list of links. If omitted, the local server's links are listed.
<server mask> (Optional) A mask to match server names in the link list.

(See section 4.3.3 of RFC 1459)