davidngo

Thank you very much, I had completely overcome the problem, as follows:
1 I 1 DDOS attack from IP address group in China.
2 The reason being is the theme from the previous insert malicious code, but I do not know.
3 I wiped Sell and block this IP address. The time now since I ran duooc overcome nearly 2 weeks without being followed.

Thank you very much everyone for your help, I’m very honored.

Thank the enthusiastic help of friends, I’ve found the cause, which is from the mail under the domain name system was attacked Attacks Local server crashes resulting in such cases, I have locked the IP address back and fix the problem. But I want to ask why it was such a domain name in the mail only to receive but not send mail to go? There are security holes that might be?

I understand what you say, but I think it is not accurate because I have 2 websites hosted on that same run, 1 other websites do not encounter this problem?