DDoS protection for your Counter-Strike 1.6 server demands carefully planing and making important steps for your security. The server latency is the key for good game expirience, which can be affected by the DDoS. Here are some tips which can prevent your server from crashes:
Use DDoS protection:
Ask your hosting provider for DDoS protection. Most of the big hosting companies offer this kind of service and they can detect, and filter those malware traffic before it reaches to your server.
Proper Firewall settings:
Use powerful firewall to filter unwanted traffic. Create rules, which allows access to your server only from specified ip adressess or countries.
Daily server optimizations:
Setup your platform resources and check for updates every day. Unwated traffic and lading could be target of DDoS attacks. Counter Strike platforms usually offers metamod plugins for some exploits and against DDoS Attacks. Check the search engines for information and keep all of them up to date. Here are few examples about those plugins: Reauthcheck, Reunion, SafeNameAndChat, Revoice etc.
Use cloud services:
Check the opportunitie for using cloud services, which offers DDoS Protection for your server. Those services usually have high levels of security and they can automatically detect and filter mallware trafic.
Create often backups:
Create often backups to your data will allow you quick restoration in case of breach through your firewall or protection services
Immeditaley inform your hosting provider:
In case of a DDoS attack immeditaley inform your hosting provider. They can get extra measures for blocking the attack on the high levels.
Observe the traffic data:
Constantly monitoring of the traffic to your server could warn you for unusual activities and give you an opportunity for quick reaction
By completing those steps you can create much more protected platform for your Counter Strike Server and keep it safe from potential DDoS attacks.