# Generated by iptables-save v1.4.19.1 on Fri Oct 4 14:26:06 2013 *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [2472:308226] :LOGACCEPT - [0:0] :LOGDROP - [0:0] :LOGREJECT - [0:0] :TCP - [0:0] :UDP - [0:0] :sshguard - [0:0] -A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT -A INPUT -i lo -j ACCEPT -A INPUT -m conntrack --ctstate INVALID -j DROP -A INPUT -p icmp -m icmp --icmp-type 8 -m conntrack --ctstate NEW -j ACCEPT -A INPUT -p udp -m conntrack --ctstate NEW -j UDP -A INPUT -p tcp -m tcp --tcp-flags FIN,SYN,RST,ACK SYN -m conntrack --ctstate NEW -j TCP -A INPUT -m limit --limit 5/min --limit-burst 7 -j LOG --log-prefix "[rejecting in INPUT chain] " -A INPUT -p udp -m recent --set --name UDP-PORTSCAN --mask 255.255.255.255 --rsource -j REJECT --reject-with icmp-port-unreachable -A INPUT -p tcp -m recent --set --name TCP-PORTSCAN --mask 255.255.255.255 --rsource -j REJECT --reject-with tcp-reset -A INPUT -j REJECT --reject-with icmp-proto-unreachable -A FORWARD -o tun0 -j ACCEPT -A LOGACCEPT -m limit --limit 5/min --limit-burst 7 -j LOG --log-prefix "[accepting] " -A LOGACCEPT -j ACCEPT -A LOGDROP -m limit --limit 5/min --limit-burst 7 -j LOG --log-prefix "[dropping] " -A LOGDROP -j DROP -A LOGREJECT -m limit --limit 5/min --limit-burst 7 -j LOG --log-prefix "[rejecting] " -A LOGREJECT -p tcp -j REJECT --reject-with tcp-reset -A LOGREJECT -j REJECT --reject-with icmp-port-unreachable -A TCP -p tcp -m recent --update --seconds 60 --name TCP-PORTSCAN --mask 255.255.255.255 --rsource -m comment --comment "when matched, this rsource has prev rcvd a RST" -j REJECT --reject-with tcp-reset -A TCP -s 172.16.1.0/24 -p tcp -j ACCEPT -A TCP -s 192.168.1.0/24 -p tcp -m tcp --dport 22 -j ACCEPT -A TCP -p tcp -m multiport --dports 22 -j sshguard -A TCP -p tcp -m tcp --dport 22 -m conntrack --ctstate NEW -m recent --set --name SSHLIST --mask 255.255.255.255 --rsource -A TCP -p tcp -m tcp --dport 22 -m conntrack --ctstate NEW -m recent --update --seconds 30 --hitcount 4 --name SSHLIST --mask 255.255.255.255 --rsource -m comment --comment "in case sshguard malfunctions" -j LOGDROP -A TCP -p tcp -m tcp --dport 22 -j ACCEPT -A TCP -p tcp -m tcp --dport 12101:12110 -j ACCEPT -A UDP -p udp -m recent --update --seconds 60 --name UDP-PORTSCAN --mask 255.255.255.255 --rsource -m comment --comment "when matched, this rsource has prev rcvd unreachable port" -j REJECT --reject-with icmp-port-unreachable -A UDP -s 172.16.1.0/24 -p udp -j ACCEPT -A UDP -p udp -m udp --dport 12101:12110 -j ACCEPT -A sshguard -s 27.100.9.205/32 -j DROP -A sshguard -s 125.141.56.67/32 -j DROP -A sshguard -s 46.254.19.233/32 -j DROP -A sshguard -s 222.190.127.15/32 -j DROP -A sshguard -s 198.144.180.79/32 -j DROP -A sshguard -s 61.19.121.131/32 -j DROP COMMIT # Completed on Fri Oct 4 14:26:06 2013