Hello.

How to protect against most types of DDoS attacks on VDS OVH?

There comes AntiDDoS Standart, which is easy to pack for about 100k packs.

    1 answer 1

    This is probably the obvious answer, but buy better protection. Ideally, the provider itself should repel ddos ​​attacks, as it has the ability to do so. If you need protection for the site, you can use for example cloudflare. If the application communicates via udp, then it is a bit more complicated. For example, during an udp flood attack, the entire channel may be blocked and it will be absolutely no matter if you block it on your vds via iptables or not. You can for example distribute the system into many small vps with different ip. It will not save completely from ddos, but it will complicate life for unskilled attackers. There is another option with flood, which antiddos protection is usually passed, because it is difficult to separate from normal traffic. In this case, simply block it on the firewall.