解决-Error-getaddrinfo-ENOTFOUND-localhostlocaldomain

关于这个问题，我查询了大量的文章，都指向了 /etc/hosts 文件。

但是，我的 /etc/hosts 文件已经包含了如下内容：

# hosts         This file describes a number of hostname-to-address
#               mappings for the TCP/IP subsystem.  It is mostly
#               used at boot time, when no name servers are running.
#               On small systems, this file can be used instead of a
#               "named" name server.
# Syntax:
#    
# IP-Address  Full-Qualified-Hostname  Short-Hostname
#

127.0.0.1       localhost

# special IPv6 addresses
::1             localhost ipv6-localhost ipv6-loopback

fe00::0         ipv6-localnet

ff00::0         ipv6-mcastprefix
ff02::1         ipv6-allnodes
ff02::2         ipv6-allrouters
ff02::3         ipv6-allhosts

localhost已经设置过了，真是让人蛋疼。。。

于是，我搜索了一下 localhost.localdomain 到底是什么，原来是和 localhost 一样的东西，只是名称不同。

所以我把 localhost.localdomain 也加入到了 /etc/hosts 文件中，如下：

127.0.0.1       localhost.localdomain localhost

问题解决！