In the event of a TCP connection attack, 500 yuan requested a friend to help!

In the event of a TCP connection attack, 500 yuan requested a friend to help! -- Linux Enterprise Application-Linux server application information. For details, refer to the following section. Hello:
I am a game developer in Sichuan Province. It takes a short linux time. I have found a game simulator in the last two days.
I used to build a game on windows and then bought the game.
The genuine ice cream firewall can solve CC attacks.
I really like linux, so I cannot install firewall or other software for defense.
I can only watch the attack... I have been trying to learn linux skills, if any of you
In RedHat Enterprise Linux 5, I am willing to pay
500 yuan! You can add QQ: 289880888.
Thanks. I am helpless here in Sichuan. I am lucky to have not died of the earthquake.
Some spam will send you a message saying no pocket money, please help me 555 .....
<1> A maximum of 10 connections can be established between one IP address and my server.
<2> connection rate control: up to 10 connections can be established with one IP address within five seconds.
<3> disable 80 proxy access to the server.
Once the IP address exceeds the limit, the access is blocked.