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:
- Assess the cause of the blockage.
- If the script is your own, review its security.
- 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
- Log in to your Oma Avaruus control panel at https://oma.avaruus.net.
- Select Settings -> Sites from the main menu.
- You will see a list of all your websites. Choose the website you want to modify and click Edit.
- In the window that opens, select Additional settings and check the box next to Web firewall
enabled.
Updated on: 30/07/2025
Thank you!