Major - P3 When initializing a replicaset through rs.initialize() using X509 certificate that doesn't match the hostname used an error is raised:
2015-07-31T13:22:30.051-0700 I COMMAND [conn8] initiate : no configuration specified. Using a default configuration for the set
2015-07-31T13:22:30.051-0700 I COMMAND [conn8] created this configuration for initiation : { _id: "RS", version: 1, members: [ { _id: 0, host: "infant:27017" } ] }
2015-07-31T13:22:30.051-0700 I REPL [conn8] replSetInitiate admin command received from client
2015-07-31T13:22:30.052-0700 I NETWORK [initandlisten] connection accepted from 127.0.0.1:60812 #9 (2 connections now open)
2015-07-31T13:22:30.068-0700 E NETWORK [conn8] The server certificate does not match the host name infant
2015-07-31T13:22:30.068-0700 I NETWORK [conn9] end connection 127.0.0.1:60812 (1 connection now open)
2015-07-31T13:22:30.068-0700 W NETWORK [conn8] could't check isSelf (infant:27017) socket exception [CONNECT_ERROR] for The server certificate does not match the host name infant
2015-07-31T13:22:30.069-0700 E REPL [conn8] replSet initiate got NodeNotFound No host described in new configuration 1 for replica set RS maps to this node while validating { _id: "RS", version: 1, members: [ { _id: 0, host: "infant:27017" } ] }
2015-07-31T13:22:38.258-0700 I NETWORK [conn8] end connection 127.0.0.1:41447 (0 connections now open)
"could't check isSelf" should say "couldn't"