跑sudo apt-get update在我的AWS EC2 Ubuntu的LTS 01年4月18日实例失败，因为我的证书验证失败：证书不被信任。尝试访问deb.nodesource.com/node_10.x 仿生版本时，证书颁发者未知
这是运行后的结果 sudo apt-get update
Hit:1 http://us-east-1.ec2.archive.ubuntu.com/ubuntu bionic InRelease
Get:2 http://us-east-1.ec2.archive.ubuntu.com/ubuntu bionic-updates InRelease [88.7 kB]
Ign:3 https://deb.nodesource.com/node_10.x bionic InRelease
Get:4 http://us-east-1.ec2.archive.ubuntu.com/ubuntu bionic-backports InRelease [74.6 kB]
Err:5 https://deb.nodesource.com/node_10.x bionic Release
Certificate verification failed: The certificate is NOT trusted. The certificate issuer is unknown. Could not handshake: Error in the certificate verification. [IP: XX.XXX.XX.XX 443]
Get:6 http://security.ubuntu.com/ubuntu bionic-security InRelease [83.2 kB]
Reading package lists... Done
W: https://deb.nodesource.com/node_10.x/dists/bionic/InRelease: No system …