[FUG-BR] pf + squid 2.7 transparent

[Bruno Torres Viana]

Senhores,

Estou tomando uma surra aqui para configurar um proxy transparent com PF e
Squid 2.7, se eu colocar no browser o proxy manual funciona, funciona telnet
também na porta 3128 tanto da máquina quanto do servidor. Alguém pode dar
uma luz? Segue:

PF.CONF

# Placas de rede
ext_if="rl0" #External interface firewall
int_if="nfe0" #Internal interface firewall
web = "{ www, 8080, 8000 }"
internal_net = "192.168.24.0/24"
external_net = "192.168.1.0/24"
caixa = "{ 200.201.173.68 200.201.166.240 }"

set skip on lo
scrub in all

nat on $ext_if from $internal_net to any -> ($ext_if)
no rdr on $int_if proto tcp from any to $caixa
rdr pass log on $int_if proto tcp from any to any port $web -> 127.0.0.1
port 3128
pass in log on $int_if inet proto tcp from any to 127.0.0.1 port 3128 keep
state

block log all
block out quick log on $ext_if proto { tcp, udp } from any to any port 161

# Regra de antispoof para interface interna
antispoof log quick for { lo $int_if } inet

# Aceita saida da loopback
pass out on lo from lo0 to lo0 keep state
pass out from {lo0, $ext_if} to any keep state

# Aceita trafego na rede interna
pass log on $int_if from $internal_net to $internal_net

# Aceita trafego de saida na interface externa com regras statefull
pass log proto tcp from { $internal_net, $external_net } to any port < 1024
modulate state flags S/SA
pass out log on $ext_if proto { udp, icmp } all keep state
pass in log on $int_if proto { udp, icmp } all keep state


SQUID.CONF
acl manager proto cache_object
acl localhost src 127.0.0.1/32
acl to_localhost dst 127.0.0.0/8
acl all src all
acl localnet src 192.168.24.0/24
acl SSL_ports port 443
acl Safe_ports port 80 # http
acl Safe_ports port 21 # ftp
acl Safe_ports port 443 # https
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 CONNECT method CONNECT
http_access allow manager localhost
http_access deny manager
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports
http_access allow localnet
icp_access allow localnet
icp_access deny all
http_port 3128 transparent       *JÁ COLOQUEI  http_port
127.0.0.1:3128transparent TAMBÉM
*
hierarchy_stoplist cgi-bin ?
access_log /var/log/squid/access.log squid
refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern (cgi-bin|\?) 0 0% 0
refresh_pattern . 0 20% 4320
icp_port 3130
coredump_dir /usr/local/squid/cache


Obrigado!

-- 
-------------------------------
Bruno Torres Viana


Todos nós somos ignorantes, porém em assuntos diferentes. Não seja ignorante
por opção!