### What is a DDoS-attack?
DDoS-attack (Distributed Denial of Service) - this is a type of attack on a website, which is carried out by means of a large number of connections from different sources. The goal of the attack is to delay or completely stop the work of the site, which can lead to the loss of visitors and losses for business.
#### How to protect your site from DDoS-attacks?
1. **Firewall settings**: Install and set up a firewall that can reject dangerous connections and protect your site from DDoS-attacks.
2. **Using Cloudflare**: Join the Cloudflare service, which can protect your site from DDoS-attacks and provide speed of work.
3. **Backup copies**: Make backup copies of your data, so in case of an attack you can quickly restore the work of the site.
4. **SSH settings**: Install and set up SSH to ensure the security of access to your server and protect your site from DDoS-attacks.
5. **Using fail2ban**: Install fail2ban, which can automatically block dangerous connections and protect your site from DDoS-attacks.
#### Common problems
* Firewall settings may be complex and require special training.
* Using Cloudflare may require additional expenses.
* Backup copies may be lost in case of an attack.
#### Conclusion
Protection from DDoS-attacks is an important part of protecting your site and business. Using special services and setting up technical solutions can help protect your site from attacks and ensure the stability of your web project's work.