Kali中默认主机名为kali，可以自定义修改主机名：

hostname和hosts中保存一致（颜色标注地方）。

1、root@Nt:~# more /etc/hostname

#kali

Nttest

2、root@Nt:~# more /etc/hosts

127.0.0.1 localhost

192.168.111.213 Nttest

#192.168.111.2 kali

# The following lines are desirable for IPv6 capable hosts

::1 localhost ip6-localhost ip6-loopback

ff02::1 ip6-allnodes

ff02::2 ip6-allrouters

3 shutdown -r -t 0