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`resolvconf` 从哪里获取 DNS 服务器的 IP？

tag-icon • tag-icon networking server dns resolv.conf resolvconf
`resolvconf` 从哪里获取 DNS 服务器的 IP？

在服务器机器上，我有/etc/network/interfaces类似如下的文件：

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth0
iface eth0 inet static
    address 192.168.1.35
    netmask 255.255.252.0 
    network 192.168.0.0
    broadcast 192.168.3.255
    gateway 192.168.1.1 
    dns-nameservers 192.168.1.3 192.168.1.4
    dns-search example.com

运行时resolvconf -u，/etc/resolv.conf文件变成：

# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
#     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 192.168.1.3
nameserver 192.168.1.4
search pelicandd.com
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
#     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 192.168.1.13

为什么会有nameserver 192.168.1.13？

答案1

Resolvconf/etc/resolv.conf使用的文件按/etc/resolvconf/resolv.conf.d/以下顺序生成：head、、base。tail该head文件几乎始终存在，并且仅包含有关生成文件的警告消息。该base文件也可能存在，但默认情况下为空。可能有一个tail文件，鉴于恶意条目出现在末尾，这很可能是您的情况中的罪魁祸首。

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