Pessoal,
Estou com um grande problema, não estou conseguindo limitar a utilização da internet aqui da empresa, estou compartilhando a rede através do script firewall.sh, mas o squid simplesmente não bloqueia os sites no arquivo bloqueados, anexei os arquivos firewall.sh, squid.conf e bloqueados.
Alguém saberia me informar aonde estou errando?
firewall.sh
#!/bin/bash
#
# FIREWALL
#
# Rafael Navas Neto
#
# rafasnnlinux@uol.com.br
#
# 05/09/2007
# Limpa regras do firewall
iptables -F
iptables -t nat -F
# Compartilhamento com proxy transparente
modprobe iptable_nat
echo 1 > /proc/sys/net/ipv4/ip_forward
iptables -t nat -A POSTROUTING -o ppp0 -j MASQUERADE
iptables -t nat -A PREROUTING -i ppp0 -p tcp --dport 80 -j REDIRECT --to-port 3128
# Regras do Firewall
# Abre a faixa de enderecos para a rede local
iptables -A INPUT -s 192.168.1.0/255.255.255.0 -j ACCEPT
# Portas liberadas
iptables -A INPUT -p tcp --dport 22 -j ACCEPT
iptables -A INPUT -p tcp --dport 3050 -j ACCEPT # Firebird
iptables -A INPUT -p tcp --dport 6051 -j ACCEPT # Avgadmin
iptables -A INPUT -p udp --dport 137 -j ACCEPT # Samba
iptables -A INPUT -p udp --dport 138 -j ACCEPT # Samba
iptables -A INPUT -p tcp --dport 139 -j ACCEPT # Samba
iptables -A INPUT -p tcp --dport 445 -j ACCEPT # Samba
# Portas bloqueadas
iptables -A OUTPUT -p tcp --dport 1863 -j REJECT # MSN
iptables -A FORWARD -p tcp --dport 1863 -j REJECT # MSN
iptables -A OUTPUT -p tcp --dport 5190 -j REJECT # MSN
iptables -A FORWARD -p tcp --dport 5190 -j REJECT # MSN
# Ignora ping
iptables -A OUTPUT -p icmp --icmp-type echo-request -j DROP
# Protege contra IP spoofing
echo 1 > /proc/sys/net/ipv4/conf/default/rp_filter
# Nao repassa pacotes danificados ou forjados
#iptables -A FORWARD -m unclean -j DROP
# Abre para a interface de loopback
iptables -A INPUT -i lo -j ACCEPT
# Bloqueia todas as portas nao liberadas acima
iptables -A INPUT -p tcp --syn -j DROP
squid.conf
http_port 3128 transparent
visible_hostname servidor
cache_mem 32 MB
maximum_object_size_in_memory 64 KB
maximum_object_size 512 MB
minimum_object_size 0 KB
cache_swap_low 90
cache_swap_high 95
cache_dir ufs /var/spool/squid 2048 16 256
cache_access_log /var/log/squid/access.log
error_directory /usr/share/squid/errors/Portuguese
refresh_pattern ^ftp: 15 20% 2280
refresh_pattern ^gopher: 15 0% 2280
refresh_pattern . 15 20% 2280
acl all src 0.0.0.0/0.0.0.0
acl manager proto cache_object
acl localhost src 127.0.0.1/255.255.255.255
acl redelocal src 192.168.1.0/24
acl SSL_ports port 443 563
acl Safe_ports port 80 # http
acl Safe_ports port 21 # ftp
acl Safe_ports port 443 563 # https, snews
acl Safe_ports port 70 # gopher
acl Safe_ports port 210 # wais
acl Safe_ports port 1025-65535 # unregistered ports
acl Safe_ports port 280 # http-mgmt
acl Safe_ports port 488 # gss-http
acl Safe_ports port 591 # filemaker
acl Safe_ports port 777 # multiling http
acl Safe_ports port 901 # SWAT
acl purge method PURGE
acl CONNECT method CONNECT
http_access allow manager localhost
http_access deny manager
http_access allow purge localhost
http_access deny purge
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports
acl bloqueados dstdomain "/etc/squid/bloqueados"
http_access deny bloqueados
http_access allow localhost
http_access allow redelocal
http_access deny all
bloqueados
orkut
messenger
gostosas
lesbian
youtube