]> git.immae.eu Git - github/shaarli/Shaarli.git/blobdiff - doc/md/Server-configuration.md
doc: nginx config: document ipv4 and ipv6 listen directives
[github/shaarli/Shaarli.git] / doc / md / Server-configuration.md
index c22b7d9c5958ce961b12d08957a4144be7a6ea7b..297d7c291e83c0b024137f16f614676a769f1aaa 100644 (file)
@@ -1,17 +1,18 @@
 # Server configuration
 
-
-
 ## Requirements
 
 ### Operating system and web server
 
-Shaarli can be hosted on dedicated/virtual servers, or shared hosting. The smallest DigitalOcean VPS (Droplet with 1 CPU, 1 GiB RAM and 25 GiB SSD) costs about $5/month and will run any Shaarli installation without problems.
+Shaarli can be hosted on dedicated/virtual servers, or shared hosting.
 
 You need write access to the Shaarli installation directory - you should have received instructions from your hosting provider on how to connect to the server using SSH (or FTP for shared hosts).
 
 Examples in this documentation are given for [Debian](https://www.debian.org/), a GNU/Linux distribution widely used in server environments. Please adapt them to your specific Linux distribution.
 
+A $5/month VPS (1 CPU, 1 GiB RAM and 25 GiB SSD) will run any Shaarli installation without problems. Some hosting providers: [DigitalOcean](https://www.digitalocean.com/) ([1](https://www.digitalocean.com/docs/droplets/overview/), [2](https://www.digitalocean.com/pricing/), [3](https://www.digitalocean.com/docs/droplets/how-to/create/), [4](https://www.digitalocean.com/docs/droplets/how-to/add-ssh-keys/), [5](https://www.digitalocean.com/community/tutorials/initial-server-setup-with-debian-8), [6](https://www.digitalocean.com/community/tutorials/an-introduction-to-securing-your-linux-vps)), [Gandi](https://www.gandi.net/en), [OVH](https://www.ovh.co.uk/), [RackSpace](https://www.rackspace.com/), etc.
+
+
 ### Network and domain name
 
 Try to host the server in a region that is geographically close to your users.
@@ -25,6 +26,14 @@ Setup a **firewall** (using `iptables`, [ufw](https://www.digitalocean.com/commu
 Shaarli makes outbound HTTP/HTTPS connections to websites you bookmark to fetch page information (title, thumbnails), the server must then have access to the Internet as well, and a working DNS resolver.
 
 
+### Screencast
+
+Here is a screencast of the installation procedure
+
+[![asciicast](https://asciinema.org/a/z3RXxcJIRgWk0jM2ws6EnUFgO.svg)](https://asciinema.org/a/z3RXxcJIRgWk0jM2ws6EnUFgO)
+
+--------------------------------------------------------------------------------
+
 ### PHP
 
 Supported PHP versions:
@@ -55,10 +64,18 @@ Extension | Required? | Usage
 
 Some [plugins](Plugins.md) may require additional configuration.
 
+- [PHP: Supported versions](http://php.net/supported-versions.php)
+- [PHP: Unsupported versions (EOL/End-of-life)](http://php.net/eol.php)
+- [PHP 7 Changelog](http://php.net/ChangeLog-7.php)
+- [PHP 5 Changelog](http://php.net/ChangeLog-5.php)
+- [PHP: Bugs](https://bugs.php.net/)
+
 
 ## SSL/TLS (HTTPS)
 
-We recommend setting up [HTTPS](https://en.wikipedia.org/wiki/HTTPS) on your webserver for secure communication between clients and the server.
+We recommend setting up [HTTPS](https://en.wikipedia.org/wiki/HTTPS) (SSL/[TLS](https://en.wikipedia.org/wiki/Transport_Layer_Security)) on your webserver for secure communication between clients and the server.
+
+### Let's Encrypt
 
 For public-facing web servers this can be done using free SSL/TLS certificates from [Let's Encrypt](https://en.wikipedia.org/wiki/Let's_Encrypt), a non-profit certificate authority provididing free certificates.
 
@@ -87,10 +104,16 @@ sudo systemctl start apache2
 sudo systemctl start nginx
 ```
 
+On apache `2.4.43+`, you can also delegate LE certificate management to [mod_md](https://httpd.apache.org/docs/2.4/mod/mod_md.html) [[1](https://www.cyberciti.biz/faq/how-to-secure-apache-with-mod_md-lets-encrypt-on-ubuntu-20-04-lts/)] in which case you don't need certbot and manual SSL configuration in virtualhosts.
+
+### Self-signed
+
 If you don't want to rely on a certificate authority, or the server can only be accessed from your own network, you can also generate self-signed certificates. Not that this will generate security warnings in web browsers/clients trying to access Shaarli:
 
 - [How To Create a Self-Signed SSL Certificate for Apache](https://www.digitalocean.com/community/tutorials/how-to-create-a-self-signed-ssl-certificate-for-apache-on-debian-10)
 - [How To Create a Self-Signed SSL Certificate for Nginx](https://www.digitalocean.com/community/tutorials/how-to-create-a-self-signed-ssl-certificate-for-nginx-on-debian-10)
+- [How to Create Self-Signed SSL Certificates with OpenSSL](http://www.xenocafe.com/tutorials/linux/centos/openssl/self_signed_certificates/index.php)
+- [How do I create my own Certificate Authority?](https://workaround.org/certificate-authority)
 
 --------------------------------------------------------------------------------
 
@@ -99,7 +122,7 @@ If you don't want to rely on a certificate authority, or the server can only be
 The following examples assume a Debian-based operating system is installed. On other distributions you may have to adapt details such as package installation procedures, configuration file locations, and webserver username/group (`www-data` or `httpd` are common values). In these examples we assume the document root for your web server/virtualhost is at `/var/www/shaarli.mydomain.org/`:
 
 ```bash
-# create the document root
+# create the document root (replace with your own domain name)
 sudo mkdir -p /var/www/shaarli.mydomain.org/
 ```
 
@@ -113,7 +136,7 @@ You can install Shaarli at the root of your virtualhost, or in a subdirectory as
 sudo apt update
 sudo apt install apache2 libapache2-mod-php php-json php-mbstring php-gd php-intl php-curl php-gettext
 
-# Edit the virtualhost configuration file with your favorite editor
+# Edit the virtualhost configuration file with your favorite editor (replace the example domain name)
 sudo nano /etc/apache2/sites-available/shaarli.mydomain.org.conf
 ```
 
@@ -122,23 +145,28 @@ sudo nano /etc/apache2/sites-available/shaarli.mydomain.org.conf
     ServerName shaarli.mydomain.org
     DocumentRoot /var/www/shaarli.mydomain.org/
 
-    # Redirect HTTP requests to HTTPS
+    # For SSL/TLS certificates acquired with certbot or self-signed certificates
+    # Redirect HTTP requests to HTTPS, except Let's Encrypt ACME challenge requests
     RewriteEngine on
     RewriteRule ^.well-known/acme-challenge/ - [L]
-    # except for Let's Encrypt ACME challenge requests
     RewriteCond %{HTTP_HOST} =shaarli.mydomain.org
     RewriteRule  ^ https://shaarli.mydomain.org%{REQUEST_URI} [END,NE,R=permanent]
 </VirtualHost>
 
+# SSL/TLS configuration for Let's Encrypt certificates managed with mod_md
+#MDomain shaarli.mydomain.org
+#MDCertificateAgreement accepted
+#MDContactEmail admin@shaarli.mydomain.org
+#MDPrivateKeys RSA 4096
+
 <VirtualHost *:443>
     ServerName   shaarli.mydomain.org
     DocumentRoot /var/www/shaarli.mydomain.org/
 
-    # SSL/TLS configuration (for Let's Encrypt certificates)
+    # SSL/TLS configuration for Let's Encrypt certificates acquired with certbot standalone
     SSLEngine             on
     SSLCertificateFile    /etc/letsencrypt/live/shaarli.mydomain.org/fullchain.pem
     SSLCertificateKeyFile /etc/letsencrypt/live/shaarli.mydomain.org/privkey.pem
-
     # Let's Encrypt settings from https://github.com/certbot/certbot/blob/master/certbot-apache/certbot_apache/_internal/tls_configs/current-options-ssl-apache.conf
     SSLProtocol             all -SSLv2 -SSLv3 -TLSv1 -TLSv1.1
     SSLCipherSuite          ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384
@@ -146,7 +174,7 @@ sudo nano /etc/apache2/sites-available/shaarli.mydomain.org.conf
     SSLSessionTickets       off
     SSLOptions +StrictRequire
 
-    # SSL/TLS configuration (for self-signed certificates)
+    # SSL/TLS configuration for self-signed certificates
     #SSLEngine             on
     #SSLCertificateFile    /etc/ssl/certs/ssl-cert-snakeoil.pem
     #SSLCertificateKeyFile /etc/ssl/private/ssl-cert-snakeoil.key
@@ -181,7 +209,7 @@ sudo nano /etc/apache2/sites-available/shaarli.mydomain.org.conf
 
 ```bash
 # Enable the virtualhost
-sudo a2ensite shaarli
+sudo a2ensite shaarli.mydomain.org
 
 # mod_ssl must be enabled to use TLS/SSL certificates
 # https://httpd.apache.org/docs/current/mod/mod_ssl.html
@@ -191,15 +219,24 @@ sudo a2enmod ssl
 # https://httpd.apache.org/docs/current/mod/mod_rewrite.html
 sudo a2enmod rewrite
 
+# mod_headers must be enabled to set custom headers from the server config
+sudo a2enmod headers
+
 # mod_version must only be enabled if you use Apache 2.2 or lower
 # https://httpd.apache.org/docs/current/mod/mod_version.html
 # sudo a2enmod version
 
 # restart the apache service
-systemctl restart apache
+sudo systemctl restart apache2
 ```
 
-See [How to install the Apache web server](https://www.digitalocean.com/community/tutorials/how-to-install-the-apache-web-server-on-debian-10) for a complete guide.
+- [How to install the Apache web server](https://www.digitalocean.com/community/tutorials/how-to-install-the-apache-web-server-on-debian-10)
+- [Apache/PHP - error log per VirtualHost - StackOverflow](http://stackoverflow.com/q/176)
+- [Apache - PHP: php_value vs php_admin_value and the use of php_flag explained](https://ma.ttias.be/php-php_value-vs-php_admin_value-and-the-use-of-php_flag-explained/)
+- [Server-side TLS (Apache) - Mozilla](https://wiki.mozilla.org/Security/Server_Side_TLS#Apache)
+- [Apache 2.4 documentation](https://httpd.apache.org/docs/2.4/)
+- [Apache mod_proxy](https://httpd.apache.org/docs/2.4/mod/mod_proxy.html)
+- [Apache Reverse Proxy Request Headers](https://httpd.apache.org/docs/2.4/mod/mod_proxy.html#x-headers)
 
 
 ### Nginx
@@ -226,7 +263,10 @@ server {
 }
 
 server {
-    listen       443 ssl;
+    # ipv4 listening port/protocol
+    listen       443 ssl http2;
+    # ipv6 listening port/protocol
+    listen           [::]:443 ssl http2;
     server_name  shaarli.mydomain.org;
     root         /var/www/shaarli.mydomain.org;
 
@@ -306,7 +346,14 @@ sudo ln -s /etc/nginx/sites-available/shaarli.mydomain.org /etc/nginx/sites-enab
 sudo systemctl reload nginx
 ```
 
-See [How to install the Nginx web server](https://www.digitalocean.com/community/tutorials/how-to-install-nginx-on-debian-10) for a complete guide.
+- [How to install the Nginx web server](https://www.digitalocean.com/community/tutorials/how-to-install-nginx-on-debian-10)
+- [Nginx Beginner's guide](http://nginx.org/en/docs/beginners_guide.html)
+- [Nginx documentation](https://nginx.org/en/docs/)
+- [Nginx ngx_http_fastcgi_module](http://nginx.org/en/docs/http/ngx_http_fastcgi_module.html)
+- [Nginx Pitfalls](http://wiki.nginx.org/Pitfalls)
+- [Nginx PHP configuration examples - Karl Blessing](http://kbeezie.com/nginx-configuration-examples/)
+- [Server-side TLS (Nginx) - Mozilla](https://wiki.mozilla.org/Security/Server_Side_TLS#Nginx)
+
 
 
 ## Reverse proxies
@@ -391,33 +438,9 @@ maxretry = 3
 bantime = -1
 ```
 
-#### References
+Then restart the service: `sudo systemctl restart fail2ban`
 
-- [Apache/PHP - error log per VirtualHost - StackOverflow](http://stackoverflow.com/q/176)
-- [Apache - PHP: php_value vs php_admin_value and the use of php_flag explained](https://ma.ttias.be/php-php_value-vs-php_admin_value-and-the-use-of-php_flag-explained/)
-- [Server-side TLS (Apache) - Mozilla](https://wiki.mozilla.org/Security/Server_Side_TLS#Apache)
-- [Nginx Beginner's guide](http://nginx.org/en/docs/beginners_guide.html)
-- [Nginx ngx_http_fastcgi_module](http://nginx.org/en/docs/http/ngx_http_fastcgi_module.html)
-- [Nginx Pitfalls](http://wiki.nginx.org/Pitfalls)
-- [Nginx PHP configuration examples - Karl Blessing](http://kbeezie.com/nginx-configuration-examples/)
-- [Apache 2.4 documentation](https://httpd.apache.org/docs/2.4/)
-- [Apache mod_proxy](https://httpd.apache.org/docs/2.4/mod/mod_proxy.html)
-- [Apache Reverse Proxy Request Headers](https://httpd.apache.org/docs/2.4/mod/mod_proxy.html#x-headers)
-- [HAProxy documentation](https://cbonte.github.io/haproxy-dconv/)
-- [Nginx documentation](https://nginx.org/en/docs/)
-- [`X-Forwarded-Proto`](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/X-Forwarded-Proto)
-- [`X-Forwarded-Host`](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/X-Forwarded-Host)
-- [`X-Forwarded-For`](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/X-Forwarded-For)
-- [Server-side TLS (Nginx) - Mozilla](https://wiki.mozilla.org/Security/Server_Side_TLS#Nginx)
-- [How to Create Self-Signed SSL Certificates with OpenSSL](http://www.xenocafe.com/tutorials/linux/centos/openssl/self_signed_certificates/index.php)
-- [How do I create my own Certificate Authority?](https://workaround.org/certificate-authority)
-- [Travis configuration](https://github.com/shaarli/Shaarli/blob/master/.travis.yml)
-- [PHP: Supported versions](http://php.net/supported-versions.php)
-- [PHP: Unsupported versions (EOL/End-of-life)](http://php.net/eol.php)
-- [PHP 7 Changelog](http://php.net/ChangeLog-7.php)
-- [PHP 5 Changelog](http://php.net/ChangeLog-5.php)
-- [PHP: Bugs](https://bugs.php.net/)
-- [Transport Layer Security](https://en.wikipedia.org/wiki/Transport_Layer_Security)
-- Hosting providers: [DigitalOcean](https://www.digitalocean.com/) ([1](https://www.digitalocean.com/docs/droplets/overview/), [2](https://www.digitalocean.com/pricing/), [3](https://www.digitalocean.com/docs/droplets/how-to/create/), [How to Add SSH Keys to Droplets](https://www.digitalocean.com/docs/droplets/how-to/add-ssh-keys/), [4](https://www.digitalocean.com/community/tutorials/initial-server-setup-with-debian-8), [5](https://www.digitalocean.com/community/tutorials/an-introduction-to-securing-your-linux-vps)), [Gandi](https://www.gandi.net/en), [OVH](https://www.ovh.co.uk/), [RackSpace](https://www.rackspace.com/), etc.
 
+## What next?
 
+[Shaarli installation](Installation.md)