该怎么解决no route to host

出现No route to host 的时候，有如下几种可能：

1、对方的域名确实不通

2、本机自己开了防火墙

3、本机的etc/hosts 里面没有配置本机的机器名和ip(可能性最大)

知道虚拟机的ip地址，而且可以ping的通：

[minbo@ares ~]$ ping 192.168.62.110

PING 192.168.62.110 (192.168.62.110) 56(84) bytes of data.

64 bytes from 192.168.62.110: icmp_seq=1 ttl=64 time=0.831 ms

64 bytes from 192.168.62.110: icmp_seq=2 ttl=64 time=0.769 ms

64 bytes from 192.168.62.110: icmp_seq=3 ttl=64 time=0.966 ms

64 bytes from 192.168.62.110: icmp_seq=4 ttl=64 time=0.829 ms

64 bytes from 192.168.62.110: icmp_seq=5 ttl=64 time=0.903 ms

64 bytes from 192.168.62.110: icmp_seq=6 ttl=64 time=0.886 ms

^C

--- 192.168.62.110 ping statistics ---

6 packets transmitted, 6 received, 0% packet loss, time 5604ms

rtt min/avg/max/mdev = 0.769/0.864/0.966/0.062 ms

但是telnet连不通

telnet 192.168.62.110 7000

Trying 192.168.62.110...

telnet: connect to address 192.168.62.110: No route to host

## 解决方案

把虚拟机中的防火墙清一下