Re: can't resolve names, ipchains or dns problem
Nick wrote: Hi list, I have an internal network setup behind linux on a single static IP I am having problem reolving names but can ping IP's numericaly. I set up dhcp to allocate 192.168.1.0/24 throught the internal network Then I setup ipchains very basic, just to get it all going ipchains -P forward DENY ipchains -A forward -s 192.168.1.0/24 -j MASQ kernel is set to forward, echo 1 /proc/sys/net/ipv4/ip_forward So I can ping from an internal machine to any global IP address, but when it comes to ping www.yahoo.com, get a bad host message. Using 192.168.1.1 as gateway for internal machines looked at /etc/resolv.conf, looks ok /etc/hosts /etc/network/interfaces all good too route tables look ok have 255.255.255.255 line for dhcp windozs default gateway ok I can ping domain names and ip address from the linux firewall. Just doesn't seem to want to forward those requests for the internal network HELP!!! Did you setup your dhcp server to give the dns addresses to clients ? When you use dhcp the /etc/resolv.conf is replaced by the one used by the dhcp cient hence the dhcp server have to send them.
Re: can't resolve names, ipchains or dns problem
Nick wrote: Hi list, I have an internal network setup behind linux on a single static IP I am having problem reolving names but can ping IP's numericaly. I set up dhcp to allocate 192.168.1.0/24 throught the internal network Then I setup ipchains very basic, just to get it all going ipchains -P forward DENY ipchains -A forward -s 192.168.1.0/24 -j MASQ kernel is set to forward, echo 1 /proc/sys/net/ipv4/ip_forward So I can ping from an internal machine to any global IP address, but when it comes to ping www.yahoo.com, get a bad host message. Using 192.168.1.1 as gateway for internal machines looked at /etc/resolv.conf, looks ok /etc/hosts /etc/network/interfaces all good too route tables look ok have 255.255.255.255 line for dhcp windozs default gateway ok I can ping domain names and ip address from the linux firewall. Just doesn't seem to want to forward those requests for the internal network HELP!!! -Nick Hi Nick, install the packet ipmasqadm on your firewall box and edit the files in /etc/ipmasq/rules. there are good samples and default values for masquerading. Greetings Albrecht
Re: can't resolve names, ipchains or dns problem
El Sun, Mar 18, 2001 at 10:59:26AM +0100, Albrecht Frank dijo: -| Nick wrote: -| -| Hi list, -| -| I have an internal network setup behind linux on a single static IP -| I am having problem reolving names but can ping IP's numericaly. -| -| I set up dhcp to allocate 192.168.1.0/24 throught the internal network -| Then I setup ipchains very basic, just to get it all going -| -| ipchains -P forward DENY -| ipchains -A forward -s 192.168.1.0/24 -j MASQ -| -| kernel is set to forward, echo 1 /proc/sys/net/ipv4/ip_forward -| -| So I can ping from an internal machine to any global IP address, but when it -| comes to ping www.yahoo.com, get a bad host message. -| -| Using 192.168.1.1 as gateway for internal machines -| looked at /etc/resolv.conf, looks ok -| /etc/hosts -| /etc/network/interfaces all good too -| -| route tables look ok -| have 255.255.255.255 line for dhcp windozs -| default gateway ok -| -| I can ping domain names and ip address from the linux firewall. -| Just doesn't seem to want to forward those requests for the internal network -| -| HELP!!! Sorry if it is a dumb sugestion, but are you assigning the needed DNS servers to your client machines with the dhcp server? If you don't, or you don't manually set each client's resolv.conf (dumb thing to do if you use dhcpd) then yor client machines won't be able to resolve names. HTH -- __ Daniel de los Reyes S2-Selling Soluciones Valencia Spain e-mail: [EMAIL PROTECTED] Powered by Debian GNU-Linux 2.2r2 __
can't resolve names, ipchains or dns problem
Hi list, I have an internal network setup behind linux on a single static IP I am having problem reolving names but can ping IP's numericaly. I set up dhcp to allocate 192.168.1.0/24 throught the internal network Then I setup ipchains very basic, just to get it all going ipchains -P forward DENY ipchains -A forward -s 192.168.1.0/24 -j MASQ kernel is set to forward, echo 1 /proc/sys/net/ipv4/ip_forward So I can ping from an internal machine to any global IP address, but when it comes to ping www.yahoo.com, get a bad host message. Using 192.168.1.1 as gateway for internal machines looked at /etc/resolv.conf, looks ok /etc/hosts /etc/network/interfaces all good too route tables look ok have 255.255.255.255 line for dhcp windozs default gateway ok I can ping domain names and ip address from the linux firewall. Just doesn't seem to want to forward those requests for the internal network HELP!!! -Nick
Re: can't resolve names, ipchains or dns problem
hi nic if yu can ping using the ip#... just add your dns server ip# into /etc/resolv.conf c ya alvin On Sat, 17 Mar 2001, Nick wrote: Hi list, I have an internal network setup behind linux on a single static IP I am having problem reolving names but can ping IP's numericaly. I set up dhcp to allocate 192.168.1.0/24 throught the internal network Then I setup ipchains very basic, just to get it all going ipchains -P forward DENY ipchains -A forward -s 192.168.1.0/24 -j MASQ kernel is set to forward, echo 1 /proc/sys/net/ipv4/ip_forward So I can ping from an internal machine to any global IP address, but when it comes to ping www.yahoo.com, get a bad host message. Using 192.168.1.1 as gateway for internal machines looked at /etc/resolv.conf, looks ok /etc/hosts /etc/network/interfaces all good too route tables look ok have 255.255.255.255 line for dhcp windozs default gateway ok I can ping domain names and ip address from the linux firewall. Just doesn't seem to want to forward those requests for the internal network HELP!!! -Nick -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
