I upgraded my home network router/firewall to RH8. NAT is working
perfectly and hosts on the LAN can connect to the Internet. However,
programs on the router itself cannot connect to anything. If I use a
hostname that's not in /etc/hosts, it *instantly* says the hostname
lookup failed. If the name is in /etc/hosts, the lookup succeeds but
then the connection times out. If I use numeric addresses, it also
times out. I can't connect to anything on the internal or external
networks, not even as root.
But *routing* of packets continues to work just fine! So it can't be a
problem with the routing table, right?
It has got to be something simple I have overlooked. Somebody PLEASE
help me, I am pulling my hair out. :o)
Here are the details:
I flushed the OUTPUT chain and changed its policy to ACCEPT. The first
rule in the INPUT chain accepts established & related. No joy.
/etc/host.conf contains 'order hosts,bind'.
/etc/resolv.conf contains exactly the same nameservers the hosts on the
LAN are getting from the dhcpd on the router, plus a 'search' statement
with what I assume is the hostname my ISP has assigned me.
# netstat -r
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt
Iface
192.168.1.0 * 255.255.255.0 U 40 0 0
eth1
68.54.20.0 * 255.255.254.0 U 40 0 0
eth0
127.0.0.0 * 255.0.0.0 U 40 0 0
lo
default 68.54.20.1 0.0.0.0 UG 40 0 0
eth0
# ifconfig eth0
eth0 Link encap:Ethernet HWaddr XX:XX:XX:XX:XX:XX
inet addr:68.54.21.XX Bcast:68.54.21.255 Mask:255.255.254.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1825751 errors:1 dropped:0 overruns:0 frame:1
TX packets:1034919 errors:0 dropped:0 overruns:0 carrier:0
collisions:1537 txqueuelen:100
RX bytes:384340324 (366.5 Mb) TX bytes:149228183 (142.3 Mb)
Interrupt:11 Base address:0x1000
(real values changed to X's for my paranoia)
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