curl检测https证书有效期命令

curl检测https证书有效期命令

curl -vvI https://域名

例如：

[root@st-01 cert]# curl -vvI https://www.baidu.com
* About to connect() to www.baidu.com port 443 (#0)
*   Trying 110.242.68.4...
* Connected to www.baidu.com (110.242.68.4) port 443 (#0)
* Initializing NSS with certpath: sql:/etc/pki/nssdb
*   CAfile: /etc/pki/tls/certs/ca-bundle.crt
  CApath: none
* SSL connection using TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
* Server certificate:
* 	subject: CN=baidu.com,O="Beijing Baidu Netcom Science Technology Co., Ltd",OU=service operation department,L=beijing,ST=beijing,C=CN
* 	start date: Jul 01 01:16:03 2021 GMT
* 	expire date: Aug 02 01:16:03 2022 GMT
* 	common name: baidu.com
* 	issuer: CN=GlobalSign Organization Validation CA - SHA256 - G2,O=GlobalSign nv-sa,C=BE
> HEAD / HTTP/1.1
> User-Agent: curl/7.29.0
> Host: www.baidu.com
> Accept: */*
> 
< HTTP/1.1 200 OK
HTTP/1.1 200 OK
< Accept-Ranges: bytes
Accept-Ranges: bytes
< Cache-Control: private, no-cache, no-store, proxy-revalidate, no-transform
Cache-Control: private, no-cache, no-store, proxy-revalidate, no-transform
< Connection: keep-alive
Connection: keep-alive
< Content-Length: 277
Content-Length: 277
< Content-Type: text/html
Content-Type: text/html
< Date: Fri, 10 Dec 2021 05:00:22 GMT
Date: Fri, 10 Dec 2021 05:00:22 GMT
< Etag: "575e1f59-115"
Etag: "575e1f59-115"
< Last-Modified: Mon, 13 Jun 2016 02:50:01 GMT
Last-Modified: Mon, 13 Jun 2016 02:50:01 GMT
< Pragma: no-cache
Pragma: no-cache
< Server: bfe/1.0.8.18
Server: bfe/1.0.8.18

< 
* Connection #0 to host www.baidu.com left intact

　　

这样就可以 使用curl的命令直接查看证书信息了