如何删除辅助 IP 地址？

Question

我正在运行 Ubuntu Server 17.04。所有软件包都是最新的。

我的内容/etc/network/interfaces如下：

$ cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto enp0s3
iface enp0s3 inet static
    address 10.99.0.10
    netmask 255.255.0.0
    gateway 10.99.0.1

但是如果我运行，ip addr我会看到一个辅助地址：

$ ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: enp0s3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 00:a0:98:35:c1:cd brd ff:ff:ff:ff:ff:ff
    inet 10.99.0.10/16 brd 10.99.255.255 scope global enp0s3
       valid_lft forever preferred_lft forever
    inet 10.99.1.31/16 brd 10.99.255.255 scope global secondary enp0s3
       valid_lft forever preferred_lft forever
    inet6 fe80::2a0:98ff:fe35:c1cd/64 scope link
       valid_lft forever preferred_lft forever

中没有文件或文件夹/etc/network/interfaces.d/。如何永久删除辅助 IP 地址？每次重启后都会重新出现。

Answer 1

事实证明，即使 dhcp 未在 中启用/etc/network/interfaces，dhcpcd.service它仍在运行并分配 IP。我用

systemctl stop dhcpcd
systemctl disable dhcpcd

并重新启动。二级IP没了！