我有两个VM centos 7最小安装，每台机器我添加了新的附加网络适配器配置IP并将新主机名+ IP放在两个节点上的/ etc / hosts中。
在这里您可以看到新的网络适配器：172.17.235.75-rvpcmk01-cr和172.17.235.106-rvpcmk02-cr
当我尝试从节点2到节点1进行telnet时，我失败了（相反的工作是o.k）。
[root@rvpcmk01 HARADview]# telnet rvpcmk02-cr 2224
Trying 172.17.235.106…
Connected to rvpcmk02-cr.
Escape character is ‘^]’.
When perform it from node2 to node1 I got Connection refused:
[root@rvpcmk02 ~]# telnet rvpcmk01-cr 2224
Trying 172.17.235.75…
telnet: connect to address 172.17.235.75: Connection refused
[root@rvpcmk02 ~]# cat /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
172.17.235.43 rvpcmk01
172.17.235.44 rvpcmk02
172.17.235.75 rvpcmk01-cr
172.17.235.106 rvpcmk02-cr
[root@rvpcmk01 ~]# cat /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
172.17.235.43 rvpcmk01
172.17.235.44 rvpcmk02
172.17.235.75 rvpcmk01-cr
172.17.235.106 rvpcmk02-cr