Blokir dengan IPTABLES

Blokir dengan IPTABLES

blokir url di iptables iptables -A OUTPUT -p TCP -d www.google.com -j DROP iptables -A OUTPUT -p ICMP -d www.google.com -j DROP blokir ip computer iptables -t filter -A INPUT -s 192.168.1.122 -j DROP blokir iptables -A INPUT -s 102.168.1.0/255.255.255.0 -p ICMP -j DROP Blokir portscanning ( syn ) iptables -A INPUT -s ! 192.168.1.0/24 -p TCP -dport 80 -syn -j DROP

iprange iptables -A INPUT -s 192.168.1.112/192.168.1.254 -p TCP -j ACCEPT iptables -A INPUT -m iprange –src-range 192.168.1.122-192.168.1.254 -p TCP -j DROP block port iptables -A INPUT -p tcp –dport 1214:1216 -j DROP ( REJECT ) command2 iptables -F menghapus smua config iptables -D output 2 -->menghapus config output line 2 iptables -D INPUT -s 192.168.1.122 -->menghapus specific file konfigurasi == > vi /etc/sysconfig/iptables-config rules vi /etc/sysconfig/iptables \ iptables -A INPUT -s 192.168.1.122 -p UDP -j DROP sumber : http://ur73.wordpress.com/