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CentOS 7：dhclient.conf 前置域名服务器不起作用

tag-icon • tag-icon centos networkmanager dhclient
CentOS 7：dhclient.conf 前置域名服务器不起作用

我需要/etc/resolv.conf在前面添加一个条目。我的接口是enp0s3。所以我创建/etc/dhcp/dhclient-enp0s3.conf并添加了这一行：

prepend domain-name-servers 127.0.0.2

当我重新启动 CentOS VM 时，NetworkManager 会自动创建此文件：/var/lib/NetworkManager/dhclient-enp0s3.conf

当我发现 /etc/dhcp 中的 dhclient-enp0s3.conf 文件被正确读取时：

[root@localhost network-scripts]# cat /var/lib/NetworkManager/dhclient-enp0s3.conf
# Created by NetworkManager
# Merged from /etc/dhcp/dhclient-enp0s3.conf

prepend domain-name-servers 127.0.0.2

option rfc3442-classless-static-routes code 121 = array of unsigned integer 8;
option ms-classless-static-routes code 249 = array of unsigned integer 8;
option wpad code 252 = string;

also request rfc3442-classless-static-routes;
also request ms-classless-static-routes;
also request static-routes;
also request wpad;
also request ntp-servers;

但是，当我 cat 时/etc/resolv.conf，前置的名称服务器不会出现在任何地方。我还运行dig只是为了测试我的内部主机名是否可以正确解析，但它们不能。

既然 NetworkManager 配置似乎已生成，那么我该从哪里开始呢？

答案1

dhclient.conf（和其他 dhcp 配置文件）中的配置语句必须以分号终止。

所以prepend domain-name-servers 127.0.0.2;应该这样做。

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