You should not use eth0. What is the external interface called? Is it ppp0 perhaps? How is your isp connected to your Redhat box? You should use that interface where the example i gave you use eth1. regards, Willem On Thu, 24 Apr 2003, eric wrote: > Willem van der Walt wrote: > > >Hi, > >By the sound of it, you need to create a file that contains some iptables > >instructions to masquerade or nat your internal IPs to the outside. > >You need then to execute this file on bootup. > >You also need to enable IP forwarding in the kernel. > >These few lines might be a start althiough it is not quite what you want > >to > >do. > >echo 1 > /proc/sys/net/ipv4/ip_forward > ># This enable ip forwarding by the kernel > > > >iptables -t nat -A POSTROUTING -o eth1 -s <internal ip> -j SNAT --to <external ip> > >iptables -t nat -A PREROUTING -d <external ip> -j DNAT --to <internal ip> > >#This is the nat in both directions when using static ip > >#Replace <internal ip> with your 192 webserver address and > >#<external ip> with the assigned public ip address from the ISP. > >hth > >Willem > > > > > >On Wed, 23 Apr 2003, eric wrote: > > > > > > > >>Dear free bsd.org: > >> > >> I am unsing redhat8, with my isp assigned dynamic ip and internal > >>ip(192,168.1.xxx-I can type it in my url of mozilla to see test webpage, > >>but can not do either dy ip or this internal ip or registered domain > >>name to see my site from outside) > >>to broadcast web(ie apache), do you know what kind file I should modify > >>to make it work > >>(I can not find /etc/rc.conf file in my rh8) > >> > >>I came from visiting natd.html > >> > >> > >> > >> > >> > >> > >> > > > > > > > > > > > since I do not have 2 cards, I do not have eth1, and change it to eth0 > after i follow your advice > > I type www.myFQDN in the URL of mozilla, it repsonse can not be found > check the name and try again(it improve from refused to timeout, or > maybe not) > if I type my internal ip in the URL of mozilla, it work > if I type my external ip in the URL of mozilla, it response: connection > was refused when attempt to contact <external ip> > > I also tried telnet > > [root@linuxspc xinetd.d]# telnet linuxspc.dyndns.org > linuxspc.dyndns.org: Host name lookup failure > [root@linuxspc xinetd.d]# telnet 68.18.6.21 > Trying 68.18.6.21... > telnet: Unable to connect to remote host: Connection refused > [root@linuxspc xinetd.d]# telnet 192.186.1.96 ( this still on my > ifconfig's eth0's inet address) > Trying 192.186.1.96... > telnet: Unable to connect to remote host: Connection timed out > > in my dyndns.org's register, I registered the ip as external ip(they > autodetect it for me), should I change it to my internal ip? (I ever > tried it before, that make me can see my webpage when I type in myFQDN > in URL of mozilla in my local computer) > > highly apprecaite your or any advanced linux user's help > sincerely Eric > > > > - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
