主机名和ip地址的关系
我在netbsd官方guide中读到这样一段怎么理解
It'snotpossibleforahostnametobelongtoseveralipaddresses,evenifImadeyouthinksowhentalkingaboutrouting.rizforexamplehasreallytwodistinctnamesforeachofitstwoaddresses:rziandrzia(butpleasedon'taskmewhichnamebelongstowhichaddress!)
rzi是连接两个子网的路由器.