On 31 Oct, George Vieira wrote:
> You should turn the firewall rules off between the 2 machine for now until
> the problems solved.
>
> What protocols does the windows machine have installed?
> Yes, dual boot the linux box into windows and see if it can see itself on
> Network Neighbourhood, coz' it should. Then go from there..
George, you're a hero - you put your finger on the problem. By turning
off all the firewall rules, it instantly started working!
I don't know much about networking really, nor ipchains, but I
remembered that an "ipchains -F" flushes all the rules, so I did that,
and the Win95 machine could see everything just fine.
I guess the basic rules were determined during my RH7.1 installation,
where I think I opted for medium level security. The trouble was,
there are two network cards installed, but I really only use one of
them (the 4-port hub/firewall appliance came after the RH7.1 install,
when I thought I'd need one interface card for the internal network
and one for the external).
Anyway, a quick poke about showed me the file /etc/sysconfig/ipchains
which had:
:input ACCEPT
:forward ACCEPT
:output ACCEPT
-A input -s 0/0 -d 0/0 2049 -p tcp -y -j ACCEPT
-A input -s 0/0 -d 0/0 25 -p tcp -y -j ACCEPT
-A input -s 0/0 -d 0/0 80 -p tcp -y -j ACCEPT
-A input -s 0/0 -d 0/0 22 -p tcp -y -j ACCEPT
-A input -s 0/0 67:68 -d 0/0 67:68 -p udp -i eth0 -j ACCEPT
-A input -s 0/0 67:68 -d 0/0 67:68 -p udp -i eth1 -j ACCEPT
-A input -s 0/0 -d 0/0 -i lo -j ACCEPT
-A input -s 0/0 -d 0/0 -i eth0 -j ACCEPT
-A input -p tcp -s 0/0 -d 0/0 0:1023 -y -j REJECT
-A input -p tcp -s 0/0 -d 0/0 2049 -y -j REJECT
-A input -p udp -s 0/0 -d 0/0 0:1023 -j REJECT
-A input -p udp -s 0/0 -d 0/0 2049 -j REJECT
-A input -p tcp -s 0/0 -d 0/0 6000:6009 -y -j REJECT
-A input -p tcp -s 0/0 -d 0/0 7100 -y -j REJECT
Suspecting the line:
-A input -s 0/0 -d 0/0 -i eth0 -j ACCEPT
should have been an accept for *eth1*, the active ethernet card, I
changed it and did an "ipchains start" - and I can still see the network
neighbourhood from the Win95 machine.
Thank you very, very much!
Best regards,
luke
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