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Blocking ip flood iptables

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I am using the following rule to protect from port 1081: 65535, but I need to ban ip flood for 1 month.

-A INPUT -p tcp -m tcp --tcp-flags FIN,SYN,RST,ACK SYN -j syn_flood 
-A INPUT -d 127.0.0.1/32 -p tcp -m tcp --dport 10081:65535 -m state --state NEW,ESTABLISHED -m recent --set --name DEFAULT --rsource -j ACCEPT 
-A OUTPUT -s 127.0.0.1/32 -p tcp -m tcp --sport 10081:65535 -m state --state ESTABLISHED -j ACCEPT 
-A syn_flood -m limit --limit 3/sec --limit-burst 500 -j RETURN 
-A syn_flood -m limit --limit 3/sec --limit-burst 500 -j LOG --log-prefix "syn_flood:" 
-A syn_flood -j DROP

However, I still know how to ban it, please help me

centos iptables

share|improve this question

asked May 29 at 2:24

Mr dungMr dung

11

add a comment | 

0

I am using the following rule to protect from port 1081: 65535, but I need to ban ip flood for 1 month.

-A INPUT -p tcp -m tcp --tcp-flags FIN,SYN,RST,ACK SYN -j syn_flood 
-A INPUT -d 127.0.0.1/32 -p tcp -m tcp --dport 10081:65535 -m state --state NEW,ESTABLISHED -m recent --set --name DEFAULT --rsource -j ACCEPT 
-A OUTPUT -s 127.0.0.1/32 -p tcp -m tcp --sport 10081:65535 -m state --state ESTABLISHED -j ACCEPT 
-A syn_flood -m limit --limit 3/sec --limit-burst 500 -j RETURN 
-A syn_flood -m limit --limit 3/sec --limit-burst 500 -j LOG --log-prefix "syn_flood:" 
-A syn_flood -j DROP

However, I still know how to ban it, please help me

centos iptables

share|improve this question

asked May 29 at 2:24

Mr dungMr dung

11

add a comment | 

I am using the following rule to protect from port 1081: 65535, but I need to ban ip flood for 1 month.

-A INPUT -p tcp -m tcp --tcp-flags FIN,SYN,RST,ACK SYN -j syn_flood 
-A INPUT -d 127.0.0.1/32 -p tcp -m tcp --dport 10081:65535 -m state --state NEW,ESTABLISHED -m recent --set --name DEFAULT --rsource -j ACCEPT 
-A OUTPUT -s 127.0.0.1/32 -p tcp -m tcp --sport 10081:65535 -m state --state ESTABLISHED -j ACCEPT 
-A syn_flood -m limit --limit 3/sec --limit-burst 500 -j RETURN 
-A syn_flood -m limit --limit 3/sec --limit-burst 500 -j LOG --log-prefix "syn_flood:" 
-A syn_flood -j DROP

However, I still know how to ban it, please help me

centos iptables

share|improve this question

asked May 29 at 2:24

Mr dungMr dung

11

-A INPUT -p tcp -m tcp --tcp-flags FIN,SYN,RST,ACK SYN -j syn_flood 
-A INPUT -d 127.0.0.1/32 -p tcp -m tcp --dport 10081:65535 -m state --state NEW,ESTABLISHED -m recent --set --name DEFAULT --rsource -j ACCEPT 
-A OUTPUT -s 127.0.0.1/32 -p tcp -m tcp --sport 10081:65535 -m state --state ESTABLISHED -j ACCEPT 
-A syn_flood -m limit --limit 3/sec --limit-burst 500 -j RETURN 
-A syn_flood -m limit --limit 3/sec --limit-burst 500 -j LOG --log-prefix "syn_flood:" 
-A syn_flood -j DROP

share|improve this question

asked May 29 at 2:24

Mr dungMr dung

11

share|improve this question

asked May 29 at 2:24

Mr dungMr dung

11

asked May 29 at 2:24

Mr dungMr dung

11

asked May 29 at 2:24

Mr dungMr dung

11