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- <h1 id="server-configuration">Server configuration</h1>
- <p><em>Example virtual host configurations for popular web servers</em></p>
- <ul>
- <li><a href="#apache">Apache</a><a href=".html"></a></li>
- <li><a href="#lighthttpd">LightHttpd</a> (empty)<a href=".html"></a></li>
- <li><a href="#nginx">Nginx</a><a href=".html"></a></li>
- </ul>
- <h2 id="prerequisites">Prerequisites</h2>
- <ul>
- <li>Shaarli is installed in a directory readable/writeable by the user</li>
- <li>the correct read/write permissions have been granted to the web server <em>user and/or group</em></li>
- <li>for HTTPS / SSL:</li>
- <li>a key pair (public, private) and a certificate have been generated</li>
- <li>the appropriate server SSL extension is installed and active</li>
- </ul>
- <p>Related guides:</p>
- <ul>
- <li><a href="http://www.xenocafe.com/tutorials/linux/centos/openssl/self_signed_certificates/index.php">How to Create Self-Signed SSL Certificates with OpenSSL</a><a href=".html"></a></li>
- <li><a href="https://workaround.org/certificate-authority">How do I create my own Certificate Authority?</a><a href=".html"></a></li>
- </ul>
- <h2 id="apache">Apache</h2>
- <h3 id="minimal">Minimal</h3>
- <pre class="sourceCode apache"><code class="sourceCode apache"><span class="fu"><VirtualHost</span><span class="ot"> *:80</span><span class="fu">></span>
- ServerName<span class="st"> shaarli.my-domain.org</span>
- DocumentRoot<span class="st"> /absolute/path/to/shaarli/</span>
- <span class="fu"></VirtualHost></span></code></pre>
- <h3 id="debug---log-all-the-things">Debug - Log all the things!</h3>
- <p>This configuration will log both Apache and PHP errors, which may prove useful to identify server configuration errors.</p>
- <p>See:</p>
- <ul>
- <li><a href="http://stackoverflow.com/q/176">Apache/PHP - error log per VirtualHost</a> (StackOverflow)<a href=".html"></a></li>
- <li><a href="PHP:%20php_value%20vs%20php_admin_value%20and%20the%20use%20of%20php_flag%20explained">PHP: php_value vs php_admin_value and the use of php_flag explained</a><a href=".html"></a></li>
- </ul>
- <pre class="sourceCode apache"><code class="sourceCode apache"><span class="fu"><VirtualHost</span><span class="ot"> *:80</span><span class="fu">></span>
- ServerName<span class="st"> shaarli.my-domain.org</span>
- DocumentRoot<span class="st"> /absolute/path/to/shaarli/</span>
- <span class="ot">LogLevel</span><span class="ch"> </span><span class="kw">warn</span>
- ErrorLog<span class="st"> /var/log/apache2/shaarli-error.log</span>
- CustomLog<span class="st"> /var/log/apache2/shaarli-access.log combined</span>
- php_flag log_errors on
- php_flag display_errors on
- php_value error_reporting 2147483647
- php_value error_log /var/log/apache2/shaarli-php-error.log
- <span class="fu"></VirtualHost></span></code></pre>
- <h3 id="standard---keep-access-and-error-logs">Standard - Keep access and error logs</h3>
- <pre class="sourceCode apache"><code class="sourceCode apache"><span class="fu"><VirtualHost</span><span class="ot"> *:80</span><span class="fu">></span>
- ServerName<span class="st"> shaarli.my-domain.org</span>
- DocumentRoot<span class="st"> /absolute/path/to/shaarli/</span>
- <span class="ot">LogLevel</span><span class="ch"> </span><span class="kw">warn</span>
- ErrorLog<span class="st"> /var/log/apache2/shaarli-error.log</span>
- CustomLog<span class="st"> /var/log/apache2/shaarli-access.log combined</span>
- <span class="fu"></VirtualHost></span></code></pre>
- <h3 id="paranoid---redirect-http-80-to-https-443">Paranoid - Redirect HTTP (:80) to HTTPS (:443)</h3>
- <p>See <a href="https://wiki.mozilla.org/Security/Server_Side_TLS#Apache">Server-side TLS</a> (Mozilla).<a href=".html"></a></p>
- <pre class="sourceCode apache"><code class="sourceCode apache"><span class="fu"><VirtualHost</span><span class="ot"> *:443</span><span class="fu">></span>
- ServerName<span class="st"> shaarli.my-domain.org</span>
- DocumentRoot<span class="st"> /absolute/path/to/shaarli/</span>
- <span class="ot">SSLEngine</span><span class="ch"> </span><span class="kw">on</span>
- SSLCertificateFile<span class="st"> /absolute/path/to/the/website/certificate.crt</span>
- SSLCertificateKeyFile<span class="st"> /absolute/path/to/the/website/key.key</span>
- <span class="fu"><Directory</span><span class="ot"> /absolute/path/to/shaarli/</span><span class="fu">></span>
- <span class="ot">AllowOverride</span><span class="ch"> </span><span class="kw">All</span>
- <span class="ot">Options</span><span class="ch"> </span><span class="kw">Indexes</span><span class="ch"> </span><span class="kw">FollowSymLinks</span><span class="ch"> </span><span class="kw">MultiViews</span>
- <span class="ot">Order</span><span class="ch"> </span><span class="kw">allow,deny</span>
- allow<span class="st"> from all</span>
- <span class="fu"></Directory></span>
- <span class="ot">LogLevel</span><span class="ch"> </span><span class="kw">warn</span>
- ErrorLog<span class="st"> /var/log/apache2/shaarli-error.log</span>
- CustomLog<span class="st"> /var/log/apache2/shaarli-access.log combined</span>
- <span class="fu"></VirtualHost></span>
- <span class="fu"><VirtualHost</span><span class="ot"> *:80</span><span class="fu">></span>
- ServerName<span class="st"> shaarli.my-domain.org</span>
- Redirect<span class="st"> 301 / https://shaarli.my-domain.org</span>
- <span class="ot">LogLevel</span><span class="ch"> </span><span class="kw">warn</span>
- ErrorLog<span class="st"> /var/log/apache2/shaarli-error.log</span>
- CustomLog<span class="st"> /var/log/apache2/shaarli-access.log combined</span>
- <span class="fu"></VirtualHost></span></code></pre>
- <h2 id="lighthttpd">LightHttpd</h2>
- <h2 id="nginx">Nginx</h2>
- <h3 id="foreword">Foreword</h3>
- <p>Nginx does not natively interpret PHP scripts; to this effect, we will run a <a href="https://en.wikipedia.org/wiki/FastCGI">FastCGI</a> service, to which Nginx's FastCGI module will proxy all requests to PHP resources.<a href=".html"></a></p>
- <p>Required packages:</p>
- <ul>
- <li><a href="http://nginx.org">nginx</a><a href=".html"></a></li>
- <li><a href="http://php-fpm.org">php-fpm</a> - PHP FastCGI Process Manager<a href=".html"></a></li>
- </ul>
- <p>Official documentation:</p>
- <ul>
- <li><a href="http://nginx.org/en/docs/beginners_guide.html">Beginner's guide</a><a href=".html"></a></li>
- <li><a href="http://nginx.org/en/docs/http/ngx_http_fastcgi_module.html">ngx_http_fastcgi_module</a><a href=".html"></a></li>
- <li><a href="http://wiki.nginx.org/Pitfalls">Pitfalls</a><a href=".html"></a></li>
- </ul>
- <p>Community resources:</p>
- <ul>
- <li><a href="https://wiki.mozilla.org/Security/Server_Side_TLS#Nginx">Server-side TLS (Nginx)</a> (Mozilla)<a href=".html"></a></li>
- <li><a href="http://kbeezie.com/nginx-configuration-examples/">PHP configuration examples</a> (Karl Blessing)<a href=".html"></a></li>
- </ul>
- <h3 id="common-setup">Common setup</h3>
- <p>Once Nginx and PHP-FPM are installed, we need to ensure:</p>
- <ul>
- <li>Nginx and PHP-FPM are running using the <em>same user and group</em></li>
- <li>both these user and group have
- <ul>
- <li><code>read</code> permissions for Shaarli resources</li>
- <li><code>execute</code> permissions for Shaarli directories <em>AND</em> their parent directories</li>
- </ul></li>
- </ul>
- <p>On a production server:</p>
- <ul>
- <li><code>user:group</code> will likely be <code>http:http</code>, <code>www:www</code> or <code>www-data:www-data</code></li>
- <li>files will be located under <code>/var/www</code>, <code>/var/http</code> or <code>/usr/share/nginx</code></li>
- </ul>
- <p>On a development server:</p>
- <ul>
- <li>files may be located in a user's home directory</li>
- <li>in this case, make sure both Nginx and PHP-FPM are running as the local user/group!</li>
- </ul>
- <p>For all following examples, a development configuration will be used:</p>
- <ul>
- <li><code>user:group = john:users</code>,</li>
- </ul>
- <p>which corresponds to the following service configuration:</p>
- <pre class="sourceCode ini"><code class="sourceCode ini"><span class="co">; /etc/php/php-fpm.conf</span>
- <span class="dt">user </span><span class="ot">=</span><span class="st"> john</span>
- <span class="dt">group </span><span class="ot">=</span><span class="st"> users</span>
- <span class="kw">[...][]</span><span class="dt">(.html)</span>
- <span class="dt">listen.owner </span><span class="ot">=</span><span class="st"> john</span>
- <span class="dt">listen.group </span><span class="ot">=</span><span class="st"> users</span></code></pre>
- <pre class="nginx"><code># /etc/nginx/nginx.conf
- user john users;
- http {
- [...][](.html)
- }</code></pre>
- <h3 id="minimal-1">Minimal</h3>
- <p><em>WARNING: Use for development only!</em></p>
- <pre class="nginx"><code>user john users;
- worker_processes 1;
- events {
- worker_connections 1024;
- }
- http {
- include mime.types;
- default_type application/octet-stream;
- keepalive_timeout 20;
- index index.html index.php;
- server {
- listen 80;
- server_name localhost;
- root /home/john/web;
- access_log /var/log/nginx/access.log;
- error_log /var/log/nginx/error.log;
- location /shaarli/ {
- access_log /var/log/nginx/shaarli.access.log;
- error_log /var/log/nginx/shaarli.error.log;
- }
- location ~ (index)\.php$ {
- fastcgi_pass unix:/var/run/php-fpm/php-fpm.sock;
- fastcgi_index index.php;
- include fastcgi.conf;
- }
- }
- }</code></pre>
- <h3 id="modular">Modular</h3>
- <p>The previous setup is sufficient for development purposes, but has several major caveats:</p>
- <ul>
- <li>every content that does not match the PHP rule will be sent to client browsers:
- <ul>
- <li>dotfiles - in our case, <code>.htaccess</code></li>
- <li>temporary files, e.g. Vim or Emacs files: <code>index.php~</code></li>
- </ul></li>
- <li>asset / static resource caching is not optimized</li>
- <li>if serving several PHP sites, there will be a lot of duplication: <code>location /shaarli/</code>, <code>location /mysite/</code>, etc.</li>
- </ul>
- <p>To solve this, we will split Nginx configuration in several parts, that will be included when needed:</p>
- <pre class="nginx"><code># /etc/nginx/deny.conf
- location ~ /\. {
- # deny access to dotfiles
- access_log off;
- log_not_found off;
- deny all;
- }
- location ~ ~$ {
- # deny access to temp editor files, e.g. "script.php~"
- access_log off;
- log_not_found off;
- deny all;
- }</code></pre>
- <pre class="nginx"><code># /etc/nginx/php.conf
- location ~ (index)\.php$ {
- # filter and proxy PHP requests to PHP-FPM
- fastcgi_pass unix:/var/run/php-fpm/php-fpm.sock;
- fastcgi_index index.php;
- include fastcgi.conf;
- }
- location ~ \.php$ {
- # deny access to all other PHP scripts
- deny all;
- }</code></pre>
- <pre class="nginx"><code># /etc/nginx/static_assets.conf
- location ~* \.(?:ico|css|js|gif|jpe?g|png)$ {
- expires max;
- add_header Pragma public;
- add_header Cache-Control "public, must-revalidate, proxy-revalidate";
- }</code></pre>
- <pre class="nginx"><code># /etc/nginx/nginx.conf
- [...][](.html)
- http {
- [...][](.html)
- root /home/john/web;
- access_log /var/log/nginx/access.log;
- error_log /var/log/nginx/error.log;
- server {
- # virtual host for a first domain
- listen 80;
- server_name my.first.domain.org;
- location /shaarli/ {
- access_log /var/log/nginx/shaarli.access.log;
- error_log /var/log/nginx/shaarli.error.log;
- }
- include deny.conf;
- include static_assets.conf;
- include php.conf;
- }
- server {
- # virtual host for a second domain
- listen 80;
- server_name second.domain.com;
- location /minigal/ {
- access_log /var/log/nginx/minigal.access.log;
- error_log /var/log/nginx/minigal.error.log;
- }
- include deny.conf;
- include static_assets.conf;
- include php.conf;
- }
- }</code></pre>
- <h3 id="redirect-http-to-https">Redirect HTTP to HTTPS</h3>
- <p>Assuming you have generated a (self-signed) key and certificate, and they are located under <code>/home/john/ssl/localhost.{key,crt}</code>, it is pretty straightforward to set an HTTP (:80) to HTTPS (:443) redirection to force SSL/TLS usage.</p>
- <pre class="nginx"><code># /etc/nginx/nginx.conf
- [...][](.html)
- http {
- [...][](.html)
- index index.html index.php;
- root /home/john/web;
- access_log /var/log/nginx/access.log;
- error_log /var/log/nginx/error.log;
- server {
- listen 80;
- server_name localhost;
- return 301 https://localhost$request_uri;
- }
- server {
- listen 443 ssl;
- server_name localhost;
- ssl_certificate /home/john/ssl/localhost.crt;
- ssl_certificate_key /home/john/ssl/localhost.key;
- location /shaarli/ {
- access_log /var/log/nginx/shaarli.access.log;
- error_log /var/log/nginx/shaarli.error.log;
- }
- include deny.conf;
- include static_assets.conf;
- include php.conf;
- }
- }</code></pre>
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