[EMAIL PROTECTED] wrote:
> I am new to networking and are trying to get two machines connected up. I
> have two problems.
> 1) The first machine is a 486 running doslinux. The network card is configured
> but cannot connect to the second machine. I can ping 127.0.0.1 but I cannot
> telnet to 127.0.0.1. Is this because of the firewall compiled in the kernel of
> Doslinux or something else.
It could be either. If telnet hangs for ~3 minutes, then it's probably
a nameservice problem (in.telnetd is trying to do a reverse DNS
lookup, but the DNS server is unreachable).
To obtain more details, you can:
1. Ensure that any firewall rules which reject/deny packets generate
log entries (-o switch for ipfwadm, -l for ipchains).
2. Use "strace -p <pid>" to watch what a program is actually doing
(e.g. if in.telnetd is calling sendto() to port 53, it's a DNS
lookup).
> 2) The second machine is a 200mmx running Caldera. Before I added the network
> card I dialed into my ISP using kde ppp dialer and surfed the internet with
> netscape. Now my dial up still works but netscape seems to be trying to read the
> network card instead of the modem. How can I get it to look at the modem again.
One possible reason is that you have a default route via the ethernet
card. If this is the case, then pppd won't replace the default route
when you go online. You need to ensure that the network initialisation
scripts don't create a default route.
--
Glynn Clements <[EMAIL PROTECTED]>
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