74 lines
2.6 KiB
Markdown
74 lines
2.6 KiB
Markdown
#Server security
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## php.ini
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PHP settings are defined in:
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- a main configuration file, usually found under `/etc/php5/php.ini`; some distributions provide different configuration environments, e.g.
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- `/etc/php5/php.ini` - used when running console scripts
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- `/etc/php5/apache2/php.ini` - used when a client requests PHP resources from Apache
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- `/etc/php5/php-fpm.conf` - used when PHP requests are proxied to PHP-FPM
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- additional configuration files/entries, depending on the installed/enabled extensions:
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- `/etc/php/conf.d/xdebug.ini`
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### Locate .ini files
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#### Console environment
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```bash
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$ php --ini
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Configuration File (php.ini) Path: /etc/php
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Loaded Configuration File: /etc/php/php.ini
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Scan for additional .ini files in: /etc/php/conf.d
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Additional .ini files parsed: /etc/php/conf.d/xdebug.ini
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```
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#### Server environment
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- create a `phpinfo.php` script located in a path supported by the web server, e.g.
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- Apache (with user dirs enabled): `/home/myself/public_html/phpinfo.php`
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- `/var/www/test/phpinfo.php`
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- make sure the script is readable by the web server user/group (usually, `www`, `www-data` or `httpd`)
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- access the script from a web browser
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- look at the _Loaded Configuration File_ and _Scan this dir for additional .ini files_ entries
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```php
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<?php phpinfo(); ?>
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```
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## fail2ban
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`fail2ban` is an intrusion prevention framework that reads server (Apache, SSH, etc.) and uses `iptables` profiles to block brute-force attempts:
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- [Official website](http://www.fail2ban.org/wiki/index.php/Main_Page)[](.html)
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- [Source code](https://github.com/fail2ban/fail2ban)[](.html)
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### Read Shaarli logs to ban IPs
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Example configuration:
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- allow 3 login attempts per IP address
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- after 3 failures, permanently ban the corresponding IP adddress
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`/etc/fail2ban/jail.local`
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```ini
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[shaarli-auth][](.html)
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enabled = true
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port = https,http
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filter = shaarli-auth
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logpath = /var/www/path/to/shaarli/data/log.txt
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maxretry = 3
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bantime = -1
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```
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`/etc/fail2ban/filter.d/shaarli-auth.conf`
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```ini
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[INCLUDES][](.html)
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before = common.conf
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[Definition][](.html)
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failregex = \s-\s<HOST>\s-\sLogin failed for user.*$
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ignoreregex =
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```
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## Robots - Restricting search engines and web crawler traffic
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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.
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```
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User-agent: *
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Disallow: /
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```
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See:
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- http://www.robotstxt.org/
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- http://www.robotstxt.org/robotstxt.html
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- http://www.robotstxt.org/meta.html
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