Boa tarde Tenho sevidor linux ubuntu como firewall minhas estação não consegue fazer ftp através do internet explorer como ftp.datahelp.com.br, coloco login e senha ele dar time out
segue em anexo minha regra do firewall e squid
acl all src all acl manager proto cache_object acl localhost src 127.0.0.1/32 acl to_localhost dst 127.0.0.0/8 acl rede_local src 192.168.0.0/24 acl sites_negados url_regex -i "/etc/squid/blacklist_squid" acl sites_liberados url_regex -i "/etc/squid/sites_liberados.txt" acl ip_liberados arp "/etc/squid/total_acesso.txt" acl localnet src 10.0.0.0/8 # RFC1918 possible internal network acl localnet src 172.16.0.0/12 # RFC1918 possible internal network acl localnet src 192.168.0.0/16 # RFC1918 possible internal network acl SSL_ports port 443 # https acl SSL_ports port 563 # snews acl SSL_ports port 873 # rsync 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 Safe_ports port 631 # cups acl Safe_ports port 873 # rsync 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 http_access allow ip_liberados all http_access allow rede_local all http_access deny to_localhost http_access allow localhost http_access deny all icp_access allow localnet icp_access deny all http_port 3128 transparent 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 -i (/cgi-bin/|\?) 0 0% 0 refresh_pattern . 0 20% 4320 acl apache rep_header Server ^Apache broken_vary_encoding allow apache extension_methods REPORT MERGE MKACTIVITY CHECKOUT hosts_file /etc/hosts coredump_dir /var/spool/squid error_directory /usr/share/squid/errors/Portuguese
#!/bin/bash echo "##################################################" echo "#### Firewall Feito por data. ###" echo "#### Dia 24/04/2009 ###" echo "#### Contato:[email protected] ###" echo "##################################################" IPT="/sbin/iptables" IFACE_LOCAL="eth1" IFACE_INET="eth0" function zera_tabelas() { for tb in filter nat mangle do $IPT -t $tb -F done } $IPT -P INPUT DROP $IPT -P FORWARD DROP $IPT -P OUTPUT ACCEPT zera_tabelas echo "1" > /proc/sys/net/ipv4/ip_forward iptables -A INPUT -p TCP --dport 22 --sport 1024: -j ACCEPT iptables -A INPUT -p TCP --dport 1024: --sport 22 -j ACCEPT $IPT -A INPUT -p ALL -i lo -j ACCEPT $IPT -A INPUT -p icmp --icmp-type 8 -j ACCEPT $IPT -A INPUT -p icmp --icmp-type 0 -j ACCEPT $IPT -A FORWARD -p icmp --icmp-type 8 -j ACCEPT $IPT -A FORWARD -p icmp --icmp-type 0 -j ACCEPT #Liberando portas locais PORTAS_TCP_IN="20 21 53 1434 80 443 3128" for PT_TCP in $PORTAS_TCP_IN do $IPT -A INPUT -p TCP --dport $PT_TCP --sport 1024: -j ACCEPT $IPT -A INPUT -p TCP --dport 1024: --sport $PT_TCP -j ACCEPT done PORTAS_UDP_IN="20 21 53 443 " for PT_TCP in $PORTAS_UDP_IN do $IPT -A INPUT -p UDP --dport $PT_TCP --sport 1024: -j ACCEPT $IPT -A INPUT -p UDP --dport 1024: --sport $PT_TCP -j ACCEPT done # Liberando porta para Forward PORTAS_TCP="20 21 22 1433 23 25 443 53 80 110 2631 3389 61639" for PT_TCP in $PORTAS_TCP do $IPT -A FORWARD -p TCP --dport $PT_TCP --sport 1024: -j ACCEPT $IPT -A FORWARD -p TCP --dport 1024: --sport $PT_TCP -j ACCEPT done PORTAS_UDP="20 21 25 53 110" for PT_UDP in $PORTAS_UDP do $IPT -A FORWARD -p UDP --dport $PT_UDP --sport 1024: -j ACCEPT $IPT -A FORWARD -p UDP --dport 1024: --sport $PT_UDP -j ACCEPT done # Redirecionamento de portas $IPT -t nat -A PREROUTING -p TCP -s 0/0 -i $IFACE_INET --dport 3389 -j DNAT --to-destination 192.168.0.254:3389 $IPT -t nat -A POSTROUTING -o $IFACE_INET -s 192.168.0.0/24 -j MASQUERADE $IPT -t nat -A PREROUTING -p TCP -i $IFACE_LOCAL -d ! 200.201.0.0/16 --dport 80 -j REDIRECT --to-ports 3128
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