----- "Nikolaos Milas" <nmilas@xxxxxx> escreveu:
> De: "Nikolaos Milas" <nmilas@xxxxxx>
> Para: centos@xxxxxxxxxx
> Enviadas: Terça-feira, 7 de Janeiro de 2014 10:28:33 (GMT-0300) Auto-Detected
> Assunto: Forward http traffic
>
> Hello,
>
> On CentOS 6.5 x86_64 I have (/etc/sysconfig/iptables):
>
> *filter
> :INPUT ACCEPT [0:0]
> :FORWARD ACCEPT [0:0]
> :OUTPUT ACCEPT [0:0]
> :RH-Firewall-1-INPUT - [0:0]
> -A INPUT -j RH-Firewall-1-INPUT
> -A FORWARD -j RH-Firewall-1-INPUT
> -A RH-Firewall-1-INPUT -i lo -j ACCEPT
> -A RH-Firewall-1-INPUT -p icmp --icmp-type any -j ACCEPT
> -A RH-Firewall-1-INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
> -A RH-Firewall-1-INPUT -m state --state NEW -s 10.10.10.0/24 -m tcp -p
>
> tcp --dport 22 -j ACCEPT
> -A RH-Firewall-1-INPUT -s 10.10.10.0/24 -m state --state NEW -m tcp -p
>
> tcp --dport 80 -j ACCEPT
> -A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited
> COMMIT
>
> Now, I want to forward all http traffic coming in from
> 10.250.250.0/24,
> at local port 8080, to 2 particular IP Addresses (port 80). Is it
> enough
> to prepend (to the above) the following:
>
> *nat
> :PREROUTING ACCEPT [0:0]
> :POSTROUTING ACCEPT [0:0]
> :OUTPUT ACCEPT [0:0]
> -A PREROUTING -s 10.250.250.0/24 -p tcp --dport 8080 -j DNAT
> --to-destination xxx.xxx.xxx.xxx:80
> -A PREROUTING -s 10.250.250.0/24 -p tcp --dport 8080 -j DNAT
> --to-destination yyy.yyy.yyy.yyy:80
> COMMIT
>
> ...?
>
> Please advise!
>
> Thanks in advance,
> Nick
Hi Nick,
If you put it that way only xxx will receive packets, to balance betwin both of them
you will need this:
-A PREROUTING -s 10.250.250.0/24 -p tcp -m tcp --dport 8080 -j DNAT
--to-destination xxx.xxx.xxx.xxx-yyy.yyy.yyy.yyy:80
Hope this helps,
Att.,
Antonio.
--
Antonio da Silva Martins Jr.
Analista de Suporte
NPD - Núcleo de Processamento de Dados
UEM - Universidade Estadual de Maringá
email: asmartins@xxxxxx
fone: +55 (44) 3011-4015 / 3011-4411
inoc-dba: 263076*100
"Real Programmers don’t need comments — the code is obvious."
--
Esta mensagem foi verificada pelo sistema de antivirus e
acredita-se estar livre de perigo.
_______________________________________________
CentOS mailing list
CentOS@xxxxxxxxxx
http://lists.centos.org/mailman/listinfo/centos
