remsh not working

[tsunix-pdm-1]

Hi all,

I can`t remsh to a sytem (DEST)  from a server (SOURCE) ; I get a timeout. From other SOURCE server, I can do it.

- Both SOURCE servers exist in DEST's .rhosts

- Both SOURCE servers exist in DEST's inetd.sec

The DEST system have two IPs one belonging to its hostname and other one (2nd_IP), and I can see whenever I try:

SOURCE:/remsh DEST_hostname "uname -a"

..this in netstat -an:

Proto Recv-Q Send-Q  Local Address          Foreign Address        (state)

tcp        0      0          Hostname_IP.514          SOURCE_IP.1018       ESTABLISHED

tcp        0      1             <2nd_IP>.1023           SOURCE_IP.1017       SYN_SENT

So it seems I connect to it through its hostname BUT it returns through the 2nd lan; this is forbidden by the firewall. We have more systems with this configuration and they work well. Also, from other source servers, I can remsh to it without problems.

Any idea on what's going on and how to make remsh works?

Best Regards,

[Torsten.]

Are both IP addresses on the same server within the same subnet?

This is usually causing problems (unless you do some specific configurations).

[tsunix-pdm-1]

Yes, both IPs are on the same subnet. But "remsh" works from some servers, and we have servers with two IPs-same subnet and no problems seen. No idea on how to address this issue.

Best Regards,

[Torsten.]

There are a lot of related threads, example:

http://h30499.www3.hp.com/t5/Networking/about-ip-strong-es-model-and-lan-fail-over-redundancy/td-p/3922887