docker报错-无法解析 registry-1.docker.io

问题

执行docker的拉取容器命令docker pull xxxx，结果报无法解析 registry-1.docker.io的错误，如图

解决

修改/etc/resolv.conf文件，配置如下

# 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 "resolvectl 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 127.0.0.53
nameserver 114.114.114.114
nameserver 8.8.8.8