wiki:TipAndDoc/network/iptables

Version 4 (modified by mitty, 15 years ago) (diff)

--

iptables

設定ファイル

  • Ubuntu => ufw
  • CentOS
    • /etc/sysconfig/iptables
      # Firewall configuration written by system-config-securitylevel
      # Manual customization of this file is not recommended.
      *filter
      :INPUT ACCEPT [0:0]
      :FORWARD ACCEPT [0:0]
      :OUTPUT ACCEPT [0:0]
      :RH-Firewall-1-INPUT - [0:0]
      -A INPUT -j RH-Firewall-1-INPUT
      -A FORWARD -j RH-Firewall-1-INPUT
      -A RH-Firewall-1-INPUT -i lo -j ACCEPT
      -A RH-Firewall-1-INPUT -p icmp --icmp-type any -j ACCEPT
      -A RH-Firewall-1-INPUT -p 50 -j ACCEPT
      -A RH-Firewall-1-INPUT -p 51 -j ACCEPT
      -A RH-Firewall-1-INPUT -p udp --dport 5353 -d 224.0.0.251 -j ACCEPT
      -A RH-Firewall-1-INPUT -p udp -m udp --dport 631 -j ACCEPT
      -A RH-Firewall-1-INPUT -p tcp -m tcp --dport 631 -j ACCEPT
      -A RH-Firewall-1-INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
      -A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT
      -A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited
      COMMIT
      
      • sshのみListen可