学习老男孩Linux的笔记总结41【第二5课】二5-不断补充“/etc/hosts”用法的笔记

/etc/hosts:静态主机名查找的表，相当于局域网的DNS。把局域网内的主机和IP进行对应解析。在局域网中，每台机器都有一个主机名，用于区分主机，便于互相访问。主机名的相关配置文件。该文件告诉主机哪些域名对应哪些IP
[root@localhost ~]# cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1               localhost.localdomain localhost
::1             localhost6.localdomain6 localhost6
[root@localhost ~]# hostname
localhost.localdomain
[root@localhost ~]# ping localhost.localdomain
PING localhost.localdomain (127.0.0.1) 56(84) bytes of data.
64 bytes from localhost.localdomain (127.0.0.1): icmp_seq=1 ttl=64 time=0.051 ms
64 bytes from localhost.localdomain (127.0.0.1): icmp_seq=2 ttl=64 time=0.018 ms
64 bytes from localhost.localdomain (127.0.0.1): icmp_seq=3 ttl=64 time=0.015 ms
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 0.015/0.028/0.051/0.016 ms
[root@localhost ~]# hostname cj
[root@localhost ~]# hostname
cj
补充知识点：
■类似的windows的文件
C:\Windows\System32\drivers\etc\hosts