> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://avaruus-tuki-temp1.crisp.help/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# PHP - Web Firewall

The web firewall is a default setting for your website, designed to block common attacks (such as SQL injection) and prevent PHP errors or risky behavior.

If you encounter an error message (503) stating that the web firewall has blocked the PHP script execution and/or display of the error message, it means the web firewall has blocked the script.

**Evaluation and Action:**

1. Assess the cause of the blockage.
2. If the script is your own, review its security.
3. If the script is not yours and you need the blocked feature, evaluate its security and consider temporarily or permanently disabling the web firewall.

### Disabling the Web Firewall

You can temporarily disable the web firewall. A good practice is to keep it enabled but disable it when performing actions that require it. If this is not possible, you can disable it entirely.

### To manage the web firewall

1. Log in to your Oma Avaruus control panel at https://oma.avaruus.net.
2. Select *Settings -> Sites* from the main menu.
3. You will see a list of all your websites. Choose the website you want to modify and click *Edit*.
4. In the window that opens, select *Additional settings* and check the box next to *Web firewall *
*enabled*.

| Note: The web firewall is set for each website individually. You can enable or disable it for each website separately.