Analise de regras do iptables

emerson2703
(usa CentOS)

Enviado em 16/09/2011 - 16:29h

Colegas, estou usando estas regras a 2 anos gostaria de sbaer aonde posso esta falhando nesta regras, utilizo a politica drop.

# Generated by iptables-save v1.3.5 on Sat Jul 11 14:45:48 2009
*nat
:PREROUTING ACCEPT [247:25323]
:POSTROUTING ACCEPT [7:415]
:OUTPUT ACCEPT [7:415]

# Liberacao do Sistema
-A PREROUTING -p tcp -d 192.168.0.107 -j ACCEPT
-A PREROUTING -p tcp -d 192.168.0.138 -j ACCEPT
-A PREROUTING -p tcp -d 172.16.7.107 -j ACCEPT
-A PREROUTING -p tcp -d 172.16.0.228 -j ACCEPT

-A PREROUTING -p tcp -d 172.16.11.121 -j ACCEPT
-A PREROUTING -p tcp -d 172.16.4.181 -j ACCEPT


# Bloqueio de acesso ao Sitema
-A PREROUTING -p tcp -d 192.168.0.137 -j ACCEPT
-A PREROUTING -p tcp -d 192.168.0.139 -j ACCEPT

# Direcionando para msn-proxy
#-A PREROUTING -i eth0 -p tcp --dport 1863 -j REDIRECT --to-port 1863
#-A PREROUTING -i eth2 -p tcp --dport 1863 -j REDIRECT --to-port 1863

# Caixa conectividade

-A PREROUTING -i eth0 -p tcp -d ! 200.201.174.207 --dport 80 -j REDIRECT --to-port 1994
-I PREROUTING -p tcp -d 200.201.0.0/16 -j ACCEPT
-I PREROUTING -p tcp -d 200.223.0.0 -j ACCEPT
-A PREROUTING -p tcp -s 172.16.0.0 --dport 80 -d 200.201.174.207 -j RETURN
-A PREROUTING -p tcp -d 200.201.0.0/16 -j ACCEPT
#-A PREROUTING -i eth2 -p tcp --dport 22 -j REDIRECT --to-port 754


# Direcionando tudo para o Squid
-A PREROUTING -i eth0 -p tcp -m tcp --dport 80 -j REDIRECT --to-ports 1994
-A PREROUTING -i eth2 -p tcp -m tcp --dport 80 -j REDIRECT --to-ports 1994

# Compartilhando a Internet
-A POSTROUTING -o ppp0 -j MASQUERADE
-A POSTROUTING -o eth0 -j MASQUERADE
-A POSTROUTING -o eth1 -j MASQUERADE
-A POSTROUTING -o eth2 -j MASQUERADE




COMMIT
# Completed on Sat Jul 11 14:45:48 2009
# Generated by iptables-save v1.3.5 on Sat Jul 11 14:45:48 2009
*filter

:INPUT DROP [3:287]
:FORWARD DROP [216:10833]
:OUTPUT DROP [14:1170]

-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT

# Rede Local
-A INPUT -i lo -j ACCEPT
-A INPUT -i eth0 -j ACCEPT
-A INPUT -i eth1 -j ACCEPT
-A INPUT -i eth2 -j ACCEPT
#-A INPUT -i ppp0 -j ACCEPT

# Internet
-A INPUT -p tcp -m tcp --dport 80 -j ACCEPT
#Liberacao do msn-proxy
-A INPUT -p tcp --dport 25000:30000 -s 172.16.4.0/22 -j ACCEPT

#Conectividade social

-I FORWARD -p tcp -d 200.201.0.0/16 -j ACCEPT
-I FORWARD -p tcp -d 200.223.0.0 -j ACCEPT
#-A FORWARD -s tcp -d 200.201.174.204 --dport 2631 -j ACCEPT
#-A FORWARD -s tcp -d 200.201.174.204 --dport 80 -j ACCEPT
#-A FORWARD -s tcp -d 200.201.174.207 --dport 80 -j ACCEPT
-A FORWARD -p tcp -d 200.201.0.0/16 -j ACCEPT

#Ping da Morte
-A FORWARD -p tcp --syn -m limit --limit 1/s -j ACCEPT

#Contra syp floop
-A FORWARD -p tcp --tcp-flags SYN,ACK,FIN,RST RST -m limit --limit 1/s -j ACCEPT
-A FORWARD -p tcp -m tcp --dport 9666 -j ACCEPT
-A OUTPUT -p tcp -m tcp --dport 9666 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 9666 -j ACCEPT

# Protecao contra worms
-A FORWARD -p tcp --dport 135 -i $I_LAN -j DROP


# Liberacao Paygo
-A FORWARD -p udp --dport 500 -j ACCEPT
-A OUTPUT -p udp --dport 500 -j ACCEPT
-A INPUT -p udp --dport 500 -j ACCEPT
-A FORWARD -p udp --dport 4500 -j ACCEPT
-A INPUT -p udp --dport 4500 -j ACCEPT
-A OUTPUT -p udp --dport 4500 -j ACCEPT

#-A FORWARD -p udp --dport 500 -j ACCEPT
#-A FORWARD -p udp --dport 4500 -j ACCEPT
#-A FORWARD -p udp --dport 10000 -j ACCEPT



# Ping
-A INPUT -p icmp --icmp-type echo-request -j ACCEPT

-A FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT

# Ping
-A FORWARD -p icmp --icmp-type echo-request -j ACCEPT

# Liberando MSN
-A FORWARD -p tcp -m tcp --dport 1863 -j ACCEPT

#-A FORWARD -d 67.215.65.132 -p tcp --dport 443 -j ACCEPT
#-A FORWARD -i eth0 -d wwwss.bradesco.com.br -p tcp --dport 443 -j

# Liberacao de Internet e Sistema

# Internet
-A FORWARD -p tcp -m tcp --dport 80 -j ACCEPT

# Sistema Login
-A FORWARD -p tcp -m tcp --dport 8080 -j ACCEPT
-A FORWARD -p tcp -m tcp --dport 9090 -j ACCEPT

# DNS Firewall
-A FORWARD -p tcp -m tcp --dport 53 -j ACCEPT


# Google Talk

#-A FORWARD -d talk.l.google.com -p tcp --dport 443 -j DROP
#-A FORWARD -d chatenabled.mail.google.com -p tcp --dport 443 -j DROP
#-A FORWARD -d talk.google.com -p tcp --dport 443 -j DROP
#-A FORWARD -d talkx.l.google.com -p tcp --dport 443 -j DROP
#-A FORWARD -d talk.google.com -p tcp --dport 443 -j DROP
#-A FORWARD -d talk.l.google.com -p tcp --dport 443 -j DROP
#-A FORWARD -d talk.l.google.com -p tcp -j DROP
#-A FORWARD -d talkx.l.google.com -p tcp -j DROP
#-A FORWARD -d 64.233.169.0/24 -p tcp --dport 443 -j DROP
#-A FORWARD -d 209.85.137.0/24 -p tcp --dport 443 -j DROP
#-A FORWARD -d 72.14.253.0/24 -p tcp --dport 443 -j DROP


# Telefonia PABX

-A FORWARD -p udp --dport 1571 -j ACCEPT
-A FORWARD -p udp --dport 5060 -j ACCEPT
-A FORWARD -p udp --dport 4000 -j ACCEPT
-A FORWARD -p udp --dport 2631 -j ACCEPT

# Servidor de cameras

-A FORWARD -p tcp -m tcp --dport 8672
-A FORWARD -p tcp -m tcp --dport 9670

# Bancos e Financeiras

-A FORWARD -p tcp -m tcp --dport 5190 -j ACCEPT
-A FORWARD -p tcp -m tcp --dport 20000 -j ACCEPT
-A FORWARD -p tcp -m tcp --dport 5432 -j ACCEPT

-A FORWARD -p tcp -m tcp --dport 809 -j ACCEPT
-A FORWARD -p tcp -m tcp --dport 1665 -j ACCEPT
-A FORWARD -p tcp -m tcp --dport 443 -j ACCEPT

# Liberacao do software da claro
-A FORWARD -p tcp -m tcp --dport 7799 -j ACCEPT
-A FORWARD -p tcp -m tcp --dport 8017 -j ACCEPT

# Caixa Economica

-A FORWARD -p tcp -m tcp --dport 2681 -j ACCEPT
-A FORWARD -p tcp -m tcp --dport 2631 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 2631 -j ACCEPT
-A OUTPUT -p tcp -m tcp --dport 2631 -j ACCEPT

# Liberacao de Envio e Recebimento de E-mail
# Recebimento
-A FORWARD -p tcp -m tcp --dport 110 -j ACCEPT
# Envio
-A FORWARD -p tcp -m tcp --dport 465 -j ACCEPT
-A FORWARD -p tcp -m tcp --dport 25 -j ACCEPT
-A FORWARD -p tcp -m tcp --dport 945 -j ACCEPT

# Liberacao Conexao Remota (Teminal Server, VNC e Puty)
# Acesso e Mapeamento Remoto
#-A FORWARD -p tcp -m tcp --dport 3389 -j ACCEPT
#-A INPUT -p tcp -m tcp --dport 3389 -j ACCEPT
#-A OUTPUT -p tcp -m tcp --dport 3389 -j ACCEPT
#-A FORWARD -p udp --dport 3389 -j ACCEPT
#-A OUTPUT -p udp --dport 3389 -j ACCEPT
#-A INPUT -p udp --dport 3389 -j ACCEPT

#FORWARD -p tcp --dport 3389 -j ACCEPT
#-A OUTPUT -p tcp --dport 3389 -j ACCEPT
#-A INPUT -p tcp --dport 3389 -j ACCEPT

-A INPUT -p tcp --dport 3389 -j ACCEPT
-A INPUT -p udp --dport 3389 -j ACCEPT
-A FORWARD -p tcp --dport 3389 -j ACCEPT
-A FORWARD -p udp --dport 3389 -j ACCEPT
-A OUTPUT -p tcp --dport 3389 -j ACCEPT
-A OUTPUT -p udp --dport 3389 -j ACCEPT

#LSM


-A FORWARD -p tcp --dport 8000 -j ACCEPT
-A FORWARD -p udp --dport 8000 -j ACCEPT
-A INPUT -p tcp --dport 8000 -j ACCEPT
-A INPUT -p udp --dport 8000 -j ACCEPT
-A OUTPUT -p tcp --dport 8000 -j ACCEPT
-A OUTPUT -p udp --dport 8000 -j ACCEPT



-A FORWARD -p tcp --dport 8001 -j ACCEPT
-A FORWARD -p udp --dport 8001 -j ACCEPT
-A INPUT -p tcp --dport 8001 -j ACCEPT
-A INPUT -p udp --dport 8001 -j ACCEPT
-A OUTPUT -p tcp --dport 8001 -j ACCEPT
-A OUTPUT -p udp --dport 8001 -j ACCEPT


#Telnet
-A FORWARD -p tcp --dport 23 -j ACCEPT
-A FORWARD -p udp --dport 23 -j ACCEPT
-A INPUT -p tcp --dport 23 -j ACCEPT
-A INPUT -p udp --dport 23 -j ACCEPT
-A OUTPUT -p tcp --dport 23 -j ACCEPT
-A OUTPUT -p udp --dport 23 -j ACCEPT

#Mysql

-A FORWARD -p tcp --dport 3306 -j ACCEPT
-A FORWARD -p udp --dport 3306 -j ACCEPT
-A INPUT -p tcp --dport 3306 -j ACCEPT
-A INPUT -p udp --dport 3306 -j ACCEPT
-A OUTPUT -p tcp --dport 3306 -j ACCEPT
-A OUTPUT -p udp --dport 3306 -j ACCEPT



#vpn auditoria

-A INPUT -p tcp --dport 4500 -j ACCEPT
-A INPUT -p udp --dport 4500 -j ACCEPT
-A FORWARD -p tcp --dport 4500 -j ACCEPT
-A FORWARD -p udp --dport 4500 -j ACCEPT
-A OUTPUT -p tcp --dport 4500 -j ACCEPT
-A OUTPUT -p udp --dport 4500 -j ACCEPT


-A FORWARD -p udp --dport 161 -j ACCEPT
-A INPUT -p udp --dport 137 -j ACCEPT
-A INPUT -p udp --dport 138 -j ACCEPT
-A FORWARD -p udp --dport 139 -j ACCEPT
-A FORWARD -p udp --dport 137 -j ACCEPT
-A FORWARD -p udp --dport 138 -j ACCEPT
-A FORWARD -p tcp --dport 139 -j ACCEPT
-A INPUT -p udp --dport 137 -j ACCEPT
-A INPUT -p udp --dport 138 -j ACCEPT
-A INPUT -p udp --dport 139 -j ACCEPT
-A INPUT -p tcp --dport 445 -j ACCEPT
-A INPUT -p udp --dport 445 -j ACCEPT
-A FORWARD -p tcp -m tcp --dport 137 -j ACCEPT
-A FORWARD -p tcp -m tcp --dport 138 -j ACCEPT
-A FORWARD -p tcp -m tcp --dport 139 -j ACCEPT
-A FORWARD -p tcp -m tcp --dport 445 -j ACCEPT
-A FORWARD -p tcp -m tcp --dport 389 -j ACCEPT
-A OUTPUT -p tcp -m tcp --dport 445 -j ACCEPT

#VPN

-A INPUT -p tcp --dport 1723 -j ACCEPT
-A INPUT -p udp --dport 1723 -j ACCEPT
-A FORWARD -p tcp --dport 1723 -j ACCEPT
-A FORWARD -p udp --dport 1723 -j ACCEPT
-A OUTPUT -p tcp --dport 1723 -j ACCEPT
-A OUTPUT -p udp --dport 1723 -j ACCEPT


# Liberando Redes Externas
-A FORWARD -d 10.101.0.0/24 -j ACCEPT
-A FORWARD -d 10.102.0.0/24 -j ACCEPT
-A FORWARD -d 10.103.0.0/24 -j ACCEPT
-A FORWARD -d 10.104.0.0/24 -j ACCEPT
-A FORWARD -d 10.105.0.0/24 -j ACCEPT
-A FORWARD -d 10.106.0.0/24 -j ACCEPT
-A FORWARD -d 10.107.0.0/24 -j ACCEPT
-A FORWARD -d 192.168.254.0/24 -j ACCEPT
-A FORWARD -d 172.16.0.0/22 -j ACCEPT
-A FORWARD -d 172.16.8.0/22 -j ACCEPT
-A FORWARD -d 172.16.12.0/22 -j ACCEPT
-A FORWARD -d 172.16.16.0/22 -j ACCEPT
-A FORWARD -d 172.16.20.0/22 -j ACCEPT
-A FORWARD -d 172.16.27.0/22 -j ACCEPT
-A FORWARD -d 172.16.39.0/22 -j ACCEPT

# Firewall 210
-A FORWARD -d 172.16.11.100 -j ACCEPT
-A FORWARD -d 172.16.11.121 -j ACCEPT

#FTp
-A FORWARD -p tcp -m tcp --dport 21 -j ACCEPT
-A OUTPUT -p tcp -m tcp --dport 21 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 21 -j ACCEPT

-A FORWARD -p tcp -m tcp --dport 20 -j ACCEPT
-A OUTPUT -p tcp -m tcp --dport 20 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 20 -j ACCEPT
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT

# VNC
-A FORWARD -p tcp -m tcp --dport 4901 -j ACCEPT

# Puty
#-A FORWARD -p tcp -m tcp --dport 22 -j ACCEPT
-A FORWARD -p tcp -m tcp --dport 754 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 754 -j ACCEPT

-A OUTPUT -m state --state RELATED,ESTABLISHED -j ACCEPT

# Rede Local
-A OUTPUT -o lo -j ACCEPT
-A OUTPUT -o eth0 -j ACCEPT
-A OUTPUT -o eth1 -j ACCEPT
-A OUTPUT -o eth2 -j ACCEPT
#-A OUTPUT -o ppp0 -j ACCEPT

# Internet
-A OUTPUT -p tcp -m tcp --dport 80 -j ACCEPT

# Ping
-A OUTPUT -p icmp --icmp-type echo-request -j ACCEPT


COMMIT
# Completed on Sat Jul 11 14:45:48 2009
# Generated by webmin
*mangle
:FORWARD ACCEPT [0:0]
:INPUT ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
:PREROUTING ACCEPT [0:0]
:POSTROUTING ACCEPT [0:0]
COMMIT
# Completed