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302 <h2 id="phpini">php.ini</h2>
303<p>PHP settings are defined in:
304- a main configuration file, usually found under <code>/etc/php5/php.ini</code>; some distributions provide different configuration environments, e.g.
305 - <code>/etc/php5/php.ini</code> - used when running console scripts
306 - <code>/etc/php5/apache2/php.ini</code> - used when a client requests PHP resources from Apache
307 - <code>/etc/php5/php-fpm.conf</code> - used when PHP requests are proxied to PHP-FPM
308- additional configuration files/entries, depending on the installed/enabled extensions:
309 - <code>/etc/php/conf.d/xdebug.ini</code></p>
310<h3 id="locate-ini-files">Locate .ini files</h3>
311<h4 id="console-environment">Console environment</h4>
312<pre><code class="bash">$ php --ini
313Configuration File (php.ini) Path: /etc/php
314Loaded Configuration File: /etc/php/php.ini
315Scan for additional .ini files in: /etc/php/conf.d
316Additional .ini files parsed: /etc/php/conf.d/xdebug.ini
317</code></pre>
318
319<h4 id="server-environment">Server environment</h4>
320<ul>
321<li>create a <code>phpinfo.php</code> script located in a path supported by the web server, e.g.<ul>
322<li>Apache (with user dirs enabled): <code>/home/myself/public_html/phpinfo.php</code></li>
323<li><code>/var/www/test/phpinfo.php</code></li>
324</ul>
325</li>
326<li>make sure the script is readable by the web server user/group (usually, <code>www</code>, <code>www-data</code> or <code>httpd</code>)</li>
327<li>access the script from a web browser</li>
328<li>look at the <em>Loaded Configuration File</em> and <em>Scan this dir for additional .ini files</em> entries</li>
329</ul>
330<pre><code class="php">&lt;?php phpinfo(); ?&gt;
331</code></pre>
332
333<h2 id="fail2ban">fail2ban</h2>
334<p><code>fail2ban</code> is an intrusion prevention framework that reads server (Apache, SSH, etc.) and uses <code>iptables</code> profiles to block brute-force attempts:
335- <a href="http://www.fail2ban.org/wiki/index.php/Main_Page">Official website</a>
336- <a href="https://github.com/fail2ban/fail2ban">Source code</a></p>
337<h3 id="read-shaarli-logs-to-ban-ips">Read Shaarli logs to ban IPs</h3>
338<p>Example configuration:
339- allow 3 login attempts per IP address
340- after 3 failures, permanently ban the corresponding IP adddress</p>
341<p><code>/etc/fail2ban/jail.local</code></p>
342<pre><code class="ini">[shaarli-auth]
343enabled = true
344port = https,http
345filter = shaarli-auth
346logpath = /var/www/path/to/shaarli/data/log.txt
347maxretry = 3
348bantime = -1
349</code></pre>
350
351<p><code>/etc/fail2ban/filter.d/shaarli-auth.conf</code></p>
352<pre><code class="ini">[INCLUDES]
353before = common.conf
354[Definition]
355failregex = \s-\s&lt;HOST&gt;\s-\sLogin failed for user.*$
356ignoreregex =
357</code></pre>
358
359<h2 id="robots-restricting-search-engines-and-web-crawler-traffic">Robots - Restricting search engines and web crawler traffic</h2>
360<p>Creating a <code>robots.txt</code> with the following contents at the root of your Shaarli installation will prevent <em>honest</em> web crawlers from indexing each and every link and Daily page from a Shaarli instance, thus getting rid of a certain amount of unsollicited network traffic.</p>
361<pre><code>User-agent: *
362Disallow: /
363</code></pre>
364
365<p>See:
366- http://www.robotstxt.org/
367- http://www.robotstxt.org/robotstxt.html
368- http://www.robotstxt.org/meta.html</p>
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