12月 232019
 

确认物理及系统防火墙80端口可访问

确认EPEL已安装并更新缓存

[root@s4 ~]# yum makecache
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
epel/x86_64/metalink | 17 kB 00:00
* base: mirror.scalabledns.com
* epel: mirror.lax.genesisadaptive.com
* extras: mirrors.sonic.net
* updates: mirrors.sonic.net
base | 3.6 kB 00:00
epel | 5.4 kB 00:00
extras | 2.9 kB 00:00
updates | 2.9 kB 00:00
(1/9): epel/x86_64/filelists_db | 12 MB 00:00
(2/9): epel/x86_64/updateinfo | 1.0 MB 00:00
(3/9): epel/x86_64/prestodelta | 4.1 kB 00:00
(4/9): epel/x86_64/primary_db | 6.9 MB 00:00
(5/9): epel/x86_64/other_db | 3.3 MB 00:00
(6/9): epel/x86_64/updateinfo_zck | 1.5 MB 00:00
(7/9): updates/7/x86_64/filelists_db | 3.3 MB 00:00
(8/9): updates/7/x86_64/other_db | 368 kB 00:00
(9/9): updates/7/x86_64/primary_db | 5.9 MB 00:00
Metadata Cache Created
[root@s4 ~]#

安装certbot工具

[root@s4 ~]# yum -y install certbot

确认所需服务器证书之CommonName已正确指向本机IP

执行证书申请

[root@s4 ~]# certbot certonly
Saving debug log to /var/log/letsencrypt/letsencrypt.log

How would you like to authenticate with the ACME CA?
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
1: Spin up a temporary webserver (standalone)
2: Place files in webroot directory (webroot)
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Select the appropriate number [1-2] then [enter] (press 'c' to cancel): 1
Plugins selected: Authenticator standalone, Installer None
Enter email address (used for urgent renewal and security notices) (Enter 'c' to
cancel): harvey.mei@linuxcache.com
Starting new HTTPS connection (1): acme-v02.api.letsencrypt.org

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Please read the Terms of Service at
https://letsencrypt.org/documents/LE-SA-v1.2-November-15-2017.pdf. You must
agree in order to register with the ACME server at
https://acme-v02.api.letsencrypt.org/directory
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
(A)gree/(C)ancel: A

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Would you be willing to share your email address with the Electronic Frontier
Foundation, a founding partner of the Let's Encrypt project and the non-profit
organization that develops Certbot? We'd like to send you email about our work
encrypting the web, EFF news, campaigns, and ways to support digital freedom.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
(Y)es/(N)o: Y
Starting new HTTPS connection (1): supporters.eff.org
Please enter in your domain name(s) (comma and/or space separated) (Enter 'c'
to cancel): s4.linuxcache.net
Obtaining a new certificate
Performing the following challenges:
http-01 challenge for s4.linuxcache.net
Waiting for verification...
Cleaning up challenges

IMPORTANT NOTES:
- Congratulations! Your certificate and chain have been saved at:
/etc/letsencrypt/live/s4.linuxcache.net/fullchain.pem
Your key file has been saved at:
/etc/letsencrypt/live/s4.linuxcache.net/privkey.pem
Your cert will expire on 2020-03-26. To obtain a new or tweaked
version of this certificate in the future, simply run certbot
again. To non-interactively renew *all* of your certificates, run
"certbot renew"
- Your account credentials have been saved in your Certbot
configuration directory at /etc/letsencrypt. You should make a
secure backup of this folder now. This configuration directory will
also contain certificates and private keys obtained by Certbot so
making regular backups of this folder is ideal.
- If you like Certbot, please consider supporting our work by:

Donating to ISRG / Let's Encrypt: https://letsencrypt.org/donate
Donating to EFF: https://eff.org/donate-le

- We were unable to subscribe you the EFF mailing list because your
e-mail address appears to be invalid. You can try again later by
visiting https://act.eff.org.
[root@s4 ~]#

证书更新

全部证书

certbot renew

指定证书

certbot renew --cert-name example.com