Problema com o programa DPI 2003 e Squid transparente
Boa tarde pessoal, será que alguém passou por este problema:
Tenho o squid rodando aqui na empresa, como proxy transparente, a principio todas as máquinas estão funcionando perfeitamente, o problema é que a máquina de um contador que precisa rodar o programa DPI (Declaração Periódica de Informações), tá com um problema, o programa DPI 2003 abre normalmente, fica conectado, na hora de enviar o arquivo, a msg que aparece é que esta transmitindo, e fica transmitindo direto, sem terminar, não sei o que pode ser, ele não tem configurações de proxy e rede, e não sei dizer se é a porta, pois no site não especifica se ele usa alguma porta diferente, o site é www.sefaz.go.gov.br Uso o DPI2003 do estado de Goiás, alguém pode me dar uma dica? abaixo o meu rc.firewall e squid.conf:
Firewall
Código :
#!/bin/bash
# Script de Firewall
#####################################
### Passo 1: Primeiro vamos arrumar a casa :) ###
#####################################
# Limpando as Regras
iptables -F INPUT
iptables -F OUTPUT
iptables -F FORWARD
# Definindo a Politica Default das Cadeias
iptables -P INPUT DROP
iptables -P OUTPUT ACCEPT
iptables -P FORWARD DROP
######################################
### Passo 2: Antes de Servir, vamos nos proteger ! ###
######################################
# Desabilitando o trafego IP Entre as Placas de Rede
echo "0" > /proc/sys/net/ipv4/ip_forward
# Configurando a Protecao anti-spoofing
echo "Setting anti-spoofing .....[ OK ]"
for spoofing in /proc/sys/net/ipv4/conf/*/rp_filter; do
echo "1" > $spoofing
done
#######################################
### Passo 3: Carregando os modulos do iptables ###
#######################################
modprobe ip_tables
modprobe iptable_filter
modprobe iptable_mangle
modprobe iptable_nat
modprobe ipt_MASQUERADE
echo "Setting rules .............[ OK ]"
#######################################
### Passo 4: Agora, vamos definir o que pode passar e o que nao ###
#######################################
# Cadeia de Entrada. Esta cadeia, so vale para o proprio host
# Qualquer pacote IP que venha do localhost, Ok.
iptables -A INPUT -i lo -j ACCEPT
# REDE INTERNA LIBERADA
iptables -A INPUT -i eth0 -j ACCEPT
# No iptables, temos de dizer quais sockets sao validos em uma conexao
iptables -A INPUT -m state --state ESTABLISHED,RELATED,NEW -j ACCEPT
# Cadeia de Reenvio (FORWARD)
# Primeiro, ativar o mascaramento (nat).
iptables -t nat -F POSTROUTING
iptables -t nat -A POSTROUTING -o eth1 -j MASQUERADE
# Agora dizemos quem e o que podem acessar externamente
# No iptables, o controle do acesso a rede externa e feito na cadeia "FORWARD"
# Redireciona porta 80 para 3128 (squid)
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 3128
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 8080 -j REDIRECT --to-port 3128
# REDE INTERNA LIBERADA
iptables -A FORWARD -i eth0 -j ACCEPT
# No iptables, temos de dizer quais sockets sao validos em uma conexao
iptables -A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT
########################################
### Finalmente, podemos "Ligar" o foward (clientes) :) ###
########################################
# Habilitando o trafego Ip, entre as Interfaces de rede
echo "1" > /proc/sys/net/ipv4/ip_forward
echo "Firewall OK ...............[ OK ]"
squid.conf
Código :
# ================ Acceleration (Proxy Transparent) ============
http_port 3128
icp_port 0
httpd_accel_port 80
httpd_accel_host virtual
httpd_accel_with_proxy on
httpd_accel_uses_host_header on
visible_hostname proxiserver.cpd.haiala
# ================== Access List for CGI =======================
acl QUERY urlpath_regex cgi-bin \?
# ================== Replacements ==============================
cache_replacement_policy lru
memory_replacement_policy lru
# ================== Service Access Lists ======================
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 873 # rsync
acl Safe_ports port 23 # telnet
acl Safe_ports port 631 # cups
acl Safe_ports port 901 # SWAT
acl Safe_ports port 3001 # Receptor Imprensa Nacional
acl Safe_ports port 8004 # Imprensa Nacional
acl Safe_ports port 1494 # Sigov
acl Safe_ports port 1521 # Siafi Gerencial
acl Safe_ports port 3460 # Serpro EDM
acl Safe_ports port 102 # X400
acl Safe_ports port 16000 # Siscon
acl Safe_ports port 23000 # SerproWeb
acl Safe_ports port 2631 # Sefip
acl Safe_ports port 12010 # Cnpq Curriculo Lates
acl CONNECT method CONNECT
# ================================================
# =============== Clientes =======================
# ================================================
# ==== Bloqueia sites pornograficos ====
acl pornoblock url_regex -i "/etc/squid/bloqueios/porno.txt"
acl nopornoblock url_regex -i "/etc/squid/bloqueios/noporno.txt"
http_access deny pornoblock !nopornoblock
acl local src 127.0.0.0/8
http_access allow local
acl intranet src 198.164.1.0/24
http_access allow intranet
acl gti src 10.1.100.0/24
http_access allow gti
# ======== Regra Proibir Download mp3,jpeg,mjeg,mov,avi ========
acl downloads urlpath_regex .mp3$ .mov$ .avi$ .mpeg$ .wmv$ .wav$
http_access deny downloads
acl all src 0.0.0.0/0.0.0.0
http_access allow all
# ===================== Management ===========================
cache_mgr [email][email protected][/email]
cachemgr_passwd Sync
# ===================== Cache Size ===========================
cache_mem 96 MB
cache_swap_low 90
cache_swap_high 95
maximum_object_size 5000 KB
# ================ Internet Explorer Compatibility ============
ie_refresh on
request_timeout 20 seconds
fqdncache_size 4000
# ================ Logs de acesso =============================
emulate_httpd_log on
cache_dir ufs /var/spool/squid 1000 64 64
cache_access_log /var/log/squid/access.log
cache_log /var/log/squid/cache.log
cache_store_log /var/log/squid/store.log
logfile_rotate 10 # 10 logs
coredump_dir /var/spool/squid
Abraços,
Eduardo Henrique.