问Ubuntu 18.04——keyserver 无法访问申请密钥，如何配置？

1、PING keyserver.ubuntu.com (162.213.33.8) 56(84) bytes of data.

^C

--- keyserver.ubuntu.com ping statistics ---

5 packets transmitted, 0 received, 100% packet loss, time 4096ms

2、安全组中配置ICMP已经全部放开

3、问题现象

~$ sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys F42ED6FBAB17C654

Executing: /tmp/apt-key-gpghome.3wn9nLNPa4/gpg.1.sh --keyserver keyserver.ubuntu.com --recv-keys F42ED6FBAB17C654

gpg: keyserver receive failed: Connection timed out