Ubuntu 18.04.3改resolv.conf文件方法-CFANZ编程社区

1、系统版本 Ubuntu 18.04.3

root@vm-sw:/etc/apt# sudo chattr +i /etc/resolv.conf

sudo: unable to resolve host vm-sw

chattr: Operation not supported while reading flags on /etc/resolv.conf

root@vm-sw:/etc/apt# ls -l /etc/resolv.conf

lrwxrwxrwx 1 root root 39 Aug 5 2019 /etc/resolv.conf -> ../run/systemd/resolve/stub-resolv.conf

root@vm-sw:/etc/apt# mv /etc/resolv.conf /etc/resolv.conf.link

root@vm-sw:/etc/apt# cat /etc/resolv.conf.link

# This file is managed by man:systemd-resolved(8). Do not edit.

# This is a dynamic resolv.conf file for connecting local clients to the

# internal DNS stub resolver of systemd-resolved. This file lists all

# configured search domains.

# Run "systemd-resolve --status" to see details about the uplink DNS servers

# currently in use.

# Third party programs must not access this file directly, but only through the

# symlink at /etc/resolv.conf. To manage man:resolv.conf(5) in a different way,

# replace this symlink by a static file or a different symlink.

# See man:systemd-resolved.service(8) for details about the supported modes of

# operation for /etc/resolv.conf.

nameserver 114.114.114.114

nameserver 127.0.0.53

options edns0

root@vm-sw:/etc/apt# cat /etc/resolv.conf.link >/etc/resolv.conf

root@vm-sw:/etc/apt# ls -la /etc/resolv.conf*

-rw-r--r-- 1 root root 742 Nov 4 08:21 /etc/resolv.conf

lrwxrwxrwx 1 root root 39 Aug 5 2019 /etc/resolv.conf.link -> ../run/systemd/resolve/stub-resolv.conf

root@vm-sw:/etc/apt# cat /etc/resolv.conf