确保两台主机可以互相识别。

Check to make sure the two hosts can recognize each other.

youdao

如果使用DNS配置两个主机名，那么要为两台主机配置正确的DNS服务器。

If the two host names are configured in DNS, configure the correct DNS server for the two hosts.

youdao

这表示在两台主机上的这个文件都包含两条记录，一条是关于自身，一条关于另一台主机。

That means the file on both hosts will include one record for itself and another record for the other.

youdao