嗯，我偶然发现了两者之间的区别.在我的/etc/sysconfig/network文件中，我在工作计算机上具有FQDN，但在另一台计算机上，我只有主机名"b"，因此将其更改为"b.domain.com"可以解决此问题，而我没有这样做.根本不需要修改我的/etc/hosts文件！！！！

ah, I stumbled upon the difference. In my /etc/sysconfig/network file, I had the FQDN on the working machine but on the other machine, I only had the hostname "b" so changing that to "b.domain.com" fixed the issue and I don't need to modify my /etc/hosts file at all!!!!

迪恩