错误：server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none

公司周末断电，周一过来执行git clone https://github.com/xxxxx的时候报错，错误信息

fatal: unable to access 'https://github.com/xxxx/': server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none

经过查找资料了解到github证书是时间敏感的，看了下机器时间，果然是不正确的，为2016年，修改系统时间后问题解决

date -s 2019/06/10
date -s 09:48:00