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<h2 id="phpini">php.ini</h2>
<p>PHP settings are defined in:
- a main configuration file, usually found under <code>/etc/php5/php.ini</code>; some distributions provide different configuration environments, e.g.
- <code>/etc/php5/php.ini</code> - used when running console scripts
- <code>/etc/php5/apache2/php.ini</code> - used when a client requests PHP resources from Apache
- <code>/etc/php5/php-fpm.conf</code> - used when PHP requests are proxied to PHP-FPM
- additional configuration files/entries, depending on the installed/enabled extensions:
- <code>/etc/php/conf.d/xdebug.ini</code></p>
<h3 id="locate-ini-files">Locate .ini files</h3>
<h4 id="console-environment">Console environment</h4>
<pre><code class="bash">$ php --ini
Configuration File (php.ini) Path: /etc/php
Loaded Configuration File: /etc/php/php.ini
Scan for additional .ini files in: /etc/php/conf.d
Additional .ini files parsed: /etc/php/conf.d/xdebug.ini
</code></pre>
<h4 id="server-environment">Server environment</h4>
<ul>
<li>create a <code>phpinfo.php</code> script located in a path supported by the web server, e.g.<ul>
<li>Apache (with user dirs enabled): <code>/home/myself/public_html/phpinfo.php</code></li>
<li><code>/var/www/test/phpinfo.php</code></li>
</ul>
</li>
<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>
<li>access the script from a web browser</li>
<li>look at the <em>Loaded Configuration File</em> and <em>Scan this dir for additional .ini files</em> entries</li>
</ul>
<pre><code class="php"><?php phpinfo(); ?>
</code></pre>
<h2 id="fail2ban">fail2ban</h2>
<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:
- <a href="http://www.fail2ban.org/wiki/index.php/Main_Page">Official website</a>
- <a href="https://github.com/fail2ban/fail2ban">Source code</a></p>
<h3 id="read-shaarli-logs-to-ban-ips">Read Shaarli logs to ban IPs</h3>
<p>Example configuration:
- allow 3 login attempts per IP address
- after 3 failures, permanently ban the corresponding IP adddress</p>
<p><code>/etc/fail2ban/jail.local</code></p>
<pre><code class="ini">[shaarli-auth]
enabled = true
port = https,http
filter = shaarli-auth
logpath = /var/www/path/to/shaarli/data/log.txt
maxretry = 3
bantime = -1
</code></pre>
<p><code>/etc/fail2ban/filter.d/shaarli-auth.conf</code></p>
<pre><code class="ini">[INCLUDES]
before = common.conf
[Definition]
failregex = \s-\s<HOST>\s-\sLogin failed for user.*$
ignoreregex =
</code></pre>
<h2 id="robots-restricting-search-engines-and-web-crawler-traffic">Robots - Restricting search engines and web crawler traffic</h2>
<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>
<pre><code>User-agent: *
Disallow: /
</code></pre>
<p>See:
- http://www.robotstxt.org/
- http://www.robotstxt.org/robotstxt.html
- http://www.robotstxt.org/meta.html</p>
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