CentOS 7: dhclient.conf预置域名-名称-服务器不工作

Question

我需要在我的/etc/resolv.conf前加上一个条目。我的界面是enp0s3。所以我创建了/etc/dhcp/dhclient-enp0s3.conf并添加了行：

prepend domain-name-servers 127.0.0.2

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

当我看到/etc/dhcp中的dhclient-enp0s3.conf文件被正确读取时，我可以看到：

[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，当我禁止使用/etc/resolv.conf时，前面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能够正确解析，但它们没有。

既然NetworkManager配置似乎是生成的，那么从这里到哪里呢？

Answer 1

dhclient.conf中的Config语句(和其他dhcp配置文件)必须用分号结束。

所以prepend domain-name-servers 127.0.0.2;应该能做到这一点。