命令行查看证书过期时间

#查看证书到期时间
echo | openssl s_client -connect zhaosheng.bipt.edu.cn:443 -servername zhaosheng.bipt.edu.cn 2>/dev/null | openssl x509 -noout -dates

#指定ip查看,（本机，公网ip，ipv6,网关）
echo | openssl s_client -connect 127.0.0.1:443 -servername zhaosheng.bipt.edu.cn 2>/dev/null | openssl x509 -noout -dates
echo | openssl s_client -connect 222.31.135.10:443 -servername zhaosheng.bipt.edu.cn 2>/dev/null | openssl x509 -noout -dates
echo | openssl s_client -connect [2001:DA8:22F:135::10]:443 -servername zhaosheng.bupt.edu.cn 2>/dev/null | openssl x509 -noout -dates
echo | openssl s_client -connect [2001:da8:22f:7::183]:443 -servername zhaosheng.bupt.edu.cn 2>/dev/null | openssl x509 -noout -dates

curl的方式查看证书过期时间（过期的证书会报错）

curl -vI https://zhaosheng.bipt.edu.cn 2>&1
curl -vI https://zhaosheng.bipt.edu.cn 2>&1 | grep "expire date"
查看头
curl -I http://[2001:da8:22f:7::183]:80 
curl -v -I http://[2001:da8:22f:7::183]:80
curl -I https://[2001:da8:22f:7::183]:443 
curl -v -I http://[2001:da8:22f:7::183]:80


#指定ip
curl -vI --resolve zhaosheng.bipt.edu.cn:443:222.31.135.10 https://zhaosheng.bipt.edu.cn 2>&1 | grep "expire date"
#指定ipv6
curl -vI --resolve zhaosheng.bupt.edu.cn:443:[2001:da8:22f:7::183] https://zhaosheng.bupt.edu.cn 2>&1 | grep "expire date"
curl -vI --resolve zhaosheng.bupt.edu.cn:443:[2001:DA8:22F:135::10] https://zhaosheng.bupt.edu.cn 2>&1 | grep "expire date"

curl -vI -H "Host: zhaosheng.bipt.edu.cn" https://[2001:DA8:22F:135::10] 2>&1 | grep "expire date"

openssl 查看

*ipv4
openssl s_client -connect ipv4:443 -servername zs.cumtt.edu.cn
openssl s_client -connect 127.0.0.1:443 -servername zs.cumtt.edu.cn
openssl s_client -connect 202.x.x.216:443 -servername zs.cumtt.edu.cn
#
openssl s_client -connect 127.0.0.1:443 -servername zhaosheng.bipt.edu.cn
openssl s_client -connect 222.31.135.10:443 -servername zhaosheng.bipt.edu.cn



*ipv6
openssl s_client -connect [ipv6]:443 -6 -servername zs.cumtt.edu.cn

跟踪路由

跟踪路由：
traceroute6 2001:da8:22f:7::183
traceroute -6 2001:da8:22f:7::183
#更详细
tracepath6 2001:da8:22f:7::183
更详细的实时跟踪
mtr -6 2001:da8:22f:7::183