HP-UX

This just started happening.
I use the rcp command to copy a file from one server to another.

Now when I use the command, every other time I execute the exact same command I get the error: remshd: login correct

Example:

1. rcp testfile server2:/db/tmp (Work ok, verified file was copied to server2: /db/tmp

2. Next time I execute the command
rcp testfile server2:/db/tmp I get the error: remshd: login incorrect

3. Next time I execute the command:
rcp testfile server2:/db/tmp (Works ok)

4. Next time I execute the command
rcp testfile server2:/db/tmp I get the error: remshd: login incorrect

......... etc

Since its remshd complaining, start by checking what going on by :

Code:

remsh server2
exit

and again to see if you fall in the same situation as rcp

I ran the following command twice

remsh server2 cat testfile.txt > /db/tmp/filetest.txt

and again every other time get:
remshd: Login incorrect

The point is you didnt do what was asked...
Go on to server2 using remsh then exit and start again, for if something is wrong it will ask you for your password...Thinking of it I saw something similar once... Are you on a cluster?

Duplicate IP address?

Hi methyl,
I saw 2 types of almost similar behaviour, issues due as you cited duplicate IP, the other one is with servers (in clusters or not) with many nic ( and so IPs) attached...

Try "ping" with a couple of packets and see how many you get back. Assuming that UDP is allowed a 200% success would suggest a duplicate IP address.


Slightly off topic because the symptoms do not match.
I too have seen strange issues with servers with multiple NICs each with their own IP address. We totally failed to make a server reply from the same IP address that it received the message - it always replied from the primary IP address and cause authentication, routing and firewall issues. Because security was paramount the solution was to install a bank of relay servers to isolate each IP address. Expensive but it worked very well.