Shaarli – Server security

php.ini

PHP settings are defined in:

a main configuration file, usually found under /etc/php5/php.ini; some distributions provide different configuration environments, e.g.

/etc/php5/php.ini - used when running console scripts
/etc/php5/apache2/php.ini - used when a client requests PHP resources from Apache
/etc/php5/php-fpm.conf - used when PHP requests are proxied to PHP-FPM

additional configuration files/entries, depending on the installed/enabled extensions:

/etc/php/conf.d/xdebug.ini

Locate .ini files

Console environment

$ 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

Server environment

create a phpinfo.php script located in a path supported by the web server, e.g.

Apache (with user dirs enabled): /home/myself/public_html/phpinfo.php
/var/www/test/phpinfo.php

make sure the script is readable by the web server user/group (usually, www, www-data or httpd)

access the script from a web browser

look at the Loaded Configuration File and Scan this dir for additional .ini files entries

<?php phpinfo(); ?>

fail2ban

fail2ban is an intrusion prevention framework that reads server (Apache, SSH, etc.) and uses iptables profiles to block brute-force attempts:

Read Shaarli logs to ban IPs

[shaarli-auth][](.html)
enabled  = true
port     = https,http
filter   = shaarli-auth
logpath  = /var/www/path/to/shaarli/data/log.txt
maxretry = 3
bantime = -1

[INCLUDES][](.html)
before = common.conf
[Definition][](.html)
failregex = \s-\s<HOST>\s-\sLogin failed for user.*$
ignoreregex =

Robots - Restricting search engines and web crawler traffic

Creating a robots.txt with the following contents at the root of your Shaarli installation will prevent honest 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.