letsencrypt
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letsencrypt [2016/04/27 10:49] k2patel created |
letsencrypt [2018/09/25 14:38] k2patel [Nginx configuration] |
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| - | ====== Letsencrypt ====== | + | ====== Letsencrypt | Certbot ====== |
| + | Now they renamed it from Letsencrypt to Certbot.\\ | ||
| + | Working on script to reflect the change but i have to make sure it does not change | Break all required dependencies.\\ | ||
| Great thing happen securing internet servers, And it's Free.\\ | Great thing happen securing internet servers, And it's Free.\\ | ||
| But there is catch, You have to renew your certificated Often.\\ | But there is catch, You have to renew your certificated Often.\\ | ||
| Line 15: | Line 17: | ||
| </code> | </code> | ||
| + | ==== configuration for certificate request / location ==== | ||
| //It is good idea to create config file for each certificate because we can use it for renewal// | //It is good idea to create config file for each certificate because we can use it for renewal// | ||
| <code ini sample_config> | <code ini sample_config> | ||
| # Domain which you are trying to get certificate for; | # Domain which you are trying to get certificate for; | ||
| + | # multiple domain like aliases can be saperated by comma | ||
| + | # e.g. domains = wiki.k2patel.in, dokuwiki.k2patel.in | ||
| domains = wiki.k2patel.in | domains = wiki.k2patel.in | ||
| Line 38: | Line 43: | ||
| </code> | </code> | ||
| + | ==== Nginx configuration ==== | ||
| + | I'm using https redirect for my hosts so i use following code on each domain.\\ | ||
| + | Works fine for me. | ||
| + | <code conf nginx.conf> | ||
| + | if ($request_uri !~ "^/.well-known/acme-challenge/(.*)") { | ||
| + | rewrite ^(.*) https://$host$1 permanent; | ||
| + | } | ||
| + | location /.well-known/acme-challenge { | ||
| + | root /var/www/letsencrypt; | ||
| + | } | ||
| + | </code> | ||
| + | |||
| + | |||
| + | SSL Configuration | ||
| + | <code conf ssl.conf> | ||
| + | ssl on; | ||
| + | ssl_certificate_key /etc/letsencrypt/live/fqdn.testdomain.com/privkey.pem; | ||
| + | ssl_certificate /etc/letsencrypt/live/fqdn.testdomain.com/fullchain.pem; | ||
| + | ssl_trusted_certificate /etc/letsencrypt/live/fqdn.testdomain.com/fullchain.pem; | ||
| + | </code> | ||
| + | ==== Apache Configuration ==== | ||
| + | So each domain only need to redirect to HTTPS if URL requested is from acme. | ||
| + | |||
| + | <code conf domain.conf> | ||
| + | RewriteEngine On | ||
| + | RewriteCond %{REQUEST_URI} !^/.well-known/acme-challenge [NC] | ||
| + | RewriteCond %{HTTPS} off | ||
| + | RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=302] | ||
| + | </code> | ||
| + | |||
| + | |||
| + | SSL configuration | ||
| + | <code conf ssl.conf> | ||
| + | SSLEngine on | ||
| + | SSLCertificateFile "/etc/letsencrypt/live/fqdn.testdomain.com/cert.pem" | ||
| + | SSLCertificateKeyFile "/etc/letsencrypt/live/fqdn.testdomain.com/privkey.pem" | ||
| + | SSLCACertificatePath "/etc/letsencrypt/live/fqdn.testdomain.com/" | ||
| + | SSLCertificateChainFile "/etc/letsencrypt/live/fqdn.testdomain.com/fullchain.pem" | ||
| + | </code> | ||
| + | ==== Cron setup ==== | ||
| + | Now i have script which run every 11 week. | ||
| + | |||
| + | <code bash letsrenew> | ||
| + | #!/usr/bin/env bash | ||
| + | # | ||
| + | ############# | ||
| + | # | ||
| + | # Renew Certificate using lets-encrypt | ||
| + | # Author : Ketan Patel <k2patel.in> | ||
| + | # License : BSD | ||
| + | # | ||
| + | ############# | ||
| + | source /etc/bashrc | ||
| + | |||
| + | # Globals ( Please update ) | ||
| + | # | ||
| + | ldomains=('wiki.k2patel.in' 'www.k2patel.in' 'ip.k2patel.in' 'rpm.k2patel.in') | ||
| + | LETSENCRYPT_HOME="/root/letsencrypt" | ||
| + | WEBSERVER="nginx" | ||
| + | |||
| + | # Enable System level logging | ||
| + | # Redirect log to logger | ||
| + | exec 1> >(logger -t $(basename $0)) 2>&1 | ||
| + | |||
| + | for i in ${ldomains[@]} | ||
| + | do | ||
| + | ${LETSENCRYPT_HOME}/letsencrypt-auto certonly -c /etc/letsencrypt/config/${i}.conf --renew-by-default | ||
| + | done | ||
| + | |||
| + | # Start web services | ||
| + | if /usr/bin/systemctl restart ${WEBSERVER} ; then | ||
| + | echo "Web service re-started after certificate renewal." | ||
| + | else | ||
| + | echo "Failed to start web services" | ||
| + | fi | ||
| + | </code> | ||
letsencrypt.txt ยท Last modified: 2020/08/10 02:35 (external edit)
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