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是否可以为 etc 主机创建规则（规则：10.0.0.* ip。用法：ping ip.10）？

tag-icon • tag-icon networking hosts
是否可以为 etc 主机创建规则（规则：10.0.0.* ip。用法：ping ip.10）？

如果我有多个主机，我想添加别名，例如

10.0.0.10 ip_10
10.0.0.11 ip_11
10.0.0.12 ip_12

有没有办法将它们组合成一行？

我试过

10.0.0. ip

然后尝试用 ping 它，ping ip.10但是却失败了ping: unknown host ip.10。

我也试过10.0.0.* ip.*

答案1

不。格式/etc/hosts非常简单并且不允许复杂的模式匹配：

This  manual page describes the format of the /etc/hosts file.  This file is a simple text
file that associates IP addresses with hostnames, one line per IP address.  For each  host
a single line should be present with the following information:

      IP_address canonical_hostname [aliases...]

Fields  of  the  entry  are separated by any number of blanks and/or tab characters.  Text
from a "#" character until the end of the line is a comment, and is ignored.   Host  names
may contain only alphanumeric characters, minus signs ("-"), and periods (".").  They must
begin with an alphabetic character and  end  with  an  alphanumeric  character.   Optional
aliases  provide  for  name  changes,  alternate  spellings, shorter hostnames, or generic
hostnames (for example, localhost).

BIND 显然支持类似这样的，如果你想尝试一下。

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