Re: networking via cross cable

From: Allan Adler (ara_at_nestle.csail.mit.edu)
Date: 05/31/04 

Date: 30 May 2004 21:40:54 -0400

I ran lokkit, then got minsk and pinsk to ping each other and then,
following Michael Heiming's suggestion, executed on minsk:

> service iptables save
> chkconfig iptables on

Also, just in case, I modified /etc/hosts.allow according to the suggestion
(mutatis mutandis):

>/etc/hosts.allow
>
>ALL: 192.168.3.3
>
>Exchange 192.168.3.3 with the IP of the other machine.

Then I tried to ssh from pinsk to minsk.

>If there are still problems, try:
>ssh -vvv 192.168.3.3
>Exchange 192.168.3.3 with the IP of the other machine.

-v and -v -v -v produce the same amount of output in this case.

>Post the output if you still have problems.

[allan@localhost allan]$ ssh -v -v -v minsk
OpenSSH_2.5.2p2, SSH protocols 1.5/2.0, OpenSSL 0x0090600f
debug1: Seeding random number generator
debug1: Rhosts Authentication disabled, originating port will not be trusted.
debug1: ssh_connect: getuid 500 geteuid 0 anon 1
debug1: Connecting to minsk [10.0.0.3] port 22.
debug1: connect: Connection refused
debug1: Trying again...
debug1: Connecting to minsk [10.0.0.3] port 22.
debug1: connect: Connection refused
debug1: Trying again...
debug1: Connecting to minsk [10.0.0.3] port 22.
debug1: connect: Connection refused
debug1: Trying again...
debug1: Connecting to minsk [10.0.0.3] port 22.
debug1: connect: Connection refused
Secure connection to minsk refused.

Just for the record, let me mention how I configured eth0 on the two machines.
On minsk, which is 10.0.0.3 according to /etc/hosts on both machines, I
configured eth0 with:
/sbin/ifconfig eth0 up (although I think it goes up at boot time on minsk)
/sbin/ifconfig eth0 10.0.0.3
/sbin/route add default gw 10.0.0.3
On pinsk, which is 10.0.0.1 according to /etc/hosts on both machines, I
configured eth0 with:
/sbin/ifconfig eth0 up
/sbin/ifconfig eth0 10.0.0.1
/sbin/route add default gw 10.0.0.1

With this arrangement, they can ping each other, as in
ping -c 3 minsk 

-- 
Ignorantly,
Allan Adler <ara@zurich.ai.mit.edu>
* Disclaimer: I am a guest and *not* a member of the MIT CSAIL. My actions and
* comments do not reflect in any way on MIT. Also, I am nowhere near Boston.