[Ubuntu-BR] Help - DNAT

[Flávio Alexandre]

Pssoal
boa tarde
estou com um problema aqui fa faculdade, preciso fazer um dnat para um
servidor web...eu consigo acesso o servidor interno via navegador, ele
mostra a página corretamente... porem preciso que os alunos possam
acessa-lo de fora da rede ( de casa )...
fiz o seguinte

func_REDIRECIONA_BIBLIOTECA(){
  echo -e "\033[34m Redireciona Porta HTTP ************************* [ok]
\033[m ";
  $v_CMD_IPTABLES -A INPUT -p tcp -s $v_ALL_NETWORKS -d $v_IP_INTERFACE_NET
--dport 41080 -j ACCEPT
  $v_CMD_IPTABLES -A FORWARD -p tcp -d 10.10.10.76 --dport 80 -j ACCEPT
  $v_CMD_IPTABLES -t nat -A PREROUTING -d $v_IP_INTERFACE_NET -p tcp
--dport 41080 -j DNAT --to-destination 10.10.10.76:80
}

criei essa funcao e estou estabilizando as conexoes

peguei os logs de acesso
# tail -f /var/log/messages | grep "10.10.10.76"
Nov  6 16:55:08 firewall kernel: [1323943.057062] <<fw-FORWARD>>: IN=eth0
OUT=eth0 SRC=200.244.126.104 DST=10.10.10.76 LEN=52 TOS=0x00 PREC=0x00
TTL=63 ID=65362 DF PROTO=TCP SPT=3555 DPT=80 WINDOW=65535 RES=0x00 SYN
URGP=0
Nov  6 16:55:08 firewall kernel: [1323943.057075] <<fw-POSTROUTING>>: IN=
OUT=eth0 SRC=200.244.126.104 DST=10.10.10.76 LEN=52 TOS=0x00 PREC=0x00
TTL=63 ID=65362 DF PROTO=TCP SPT=3555 DPT=80 WINDOW=65535 RES=0x00 SYN
URGP=0
Nov  6 16:55:09 firewall kernel: [1323943.303337] <<fw-FORWARD>>: IN=eth0
OUT=eth0 SRC=200.244.126.104 DST=10.10.10.76 LEN=52 TOS=0x00 PREC=0x00
TTL=63 ID=65384 DF PROTO=TCP SPT=3556 DPT=80 WINDOW=65535 RES=0x00 SYN
URGP=0
Nov  6 16:55:09 firewall kernel: [1323943.303351] <<fw-POSTROUTING>>: IN=
OUT=eth0 SRC=200.244.126.104 DST=10.10.10.76 LEN=52 TOS=0x00 PREC=0x00
TTL=63 ID=65384 DF PROTO=TCP SPT=3556 DPT=80 WINDOW=65535 RES=0x00 SYN
URGP=0
Nov  6 16:55:11 firewall kernel: [1323945.990735] <<fw-FORWARD>>: IN=eth0
OUT=eth0 SRC=200.244.126.104 DST=10.10.10.76 LEN=52 TOS=0x00 PREC=0x00
TTL=63 ID=65434 DF PROTO=TCP SPT=3555 DPT=80 WINDOW=65535 RES=0x00 SYN
URGP=0
Nov  6 16:55:12 firewall kernel: [1323946.318858] <<fw-FORWARD>>: IN=eth0
OUT=eth0 SRC=200.244.126.104 DST=10.10.10.76 LEN=52 TOS=0x00 PREC=0x00
TTL=63 ID=65439 DF PROTO=TCP SPT=3556 DPT=80 WINDOW=65535 RES=0x00 SYN
URGP=0
Nov  6 16:55:17 firewall kernel: [1323952.006982] <<fw-FORWARD>>: IN=eth0
OUT=eth0 SRC=200.244.126.104 DST=10.10.10.76 LEN=52 TOS=0x00 PREC=0x00
TTL=63 ID=65494 DF PROTO=TCP SPT=3555 DPT=80 WINDOW=65535 RES=0x00 SYN
URGP=0
Nov  6 16:55:18 firewall kernel: [1323952.335105] <<fw-FORWARD>>: IN=eth0
OUT=eth0 SRC=200.244.126.104 DST=10.10.10.76 LEN=52 TOS=0x00 PREC=0x00
TTL=63 ID=65499 DF PROTO=TCP SPT=3556 DPT=80 WINDOW=65535 RES=0x00 SYN
URGP=0
Nov  6 16:55:27 firewall kernel: [1323961.469939] <<fw-PREROUTING>>:
IN=eth0 OUT= MAC=01:00:5e:00:00:fb:00:16:36:0f:e0:14:08:00 SRC=10.10.10.76
DST=224.0.0.251 LEN=154 TOS=0x00 PREC=0x00 TTL=255 ID=0 DF PROTO=UDP
SPT=5353 DPT=5353 LEN=134
Nov  6 16:55:34 firewall kernel: [1323968.510338] <<fw-PREROUTING>>:
IN=eth0 OUT= MAC=01:00:5e:00:00:fb:00:16:36:0f:e0:14:08:00 SRC=10.10.10.76
DST=224.0.0.251 LEN=154 TOS=0x00 PREC=0x00 TTL=255 ID=0 DF PROTO=UDP
SPT=5353 DPT=5353 LEN=134

se alguem puder me ajudar

[]s

-- 
--------------------------------------------------
 °v°   Flávio Alexandre dos Reis
/(  )\  Juiz de Fora - MG
 ^ ^
Linux user #481115
Ubuntu user #24388