How to Block DDoS Attacks on a PC

By Contributor

Updated December 13, 2019

How to Block DDoS Attacks on a PC. A distributed denial of service, or DDoS, attack is a malignant, organized assault on a website or network that uses a massive influx of traffic or data to halt functionality. The distribution of a DDoS attack makes identifying and stopping the attackers difficult but not impossible. You can block these attacks and prevent the issues they bring.

Start with the basics. Basic Internet security protection is the first line of defense against DDoS attacks. Firewalls, anti-virus and anti-malware programs give your PC some ability to block crude or "brute force" DDoS attacks. Make sure all of your software and OS installs are updated and run an anti-malware program on a regular basis.

Protect your mail servers. One method of DDoS attack targets the mail servers of large organizations. The scale of the mail servers make the servers vulnerable to DDoS attacks. Use a mail server software that provides explicit protection against DDoS attacks. Check out programs such as SMTP Server Pro by IM-Soft for one good example of a DDoS blocking program.

Try a managed security service. Managed security services add a human element to the protection of your PCs and networks against DDoS attacks. Check out services like Trustwave or Solosoft for companies that work round the clock to block malignant intrusions, such as DDoS attacks and other hostile programs.

Work with your web host. If you think that you might become the target of a DDoS attack or are currently being attacked, contact your web host (if you're running a website) or your Internet service provider and ask the company to investigate. The web host or ISP can block the range of IP addresses that are taking part in the attack, thereby blocking all or part of the attack.