Question on "who" command in Unix

Dear all,
I am accessing a Unix (Solaris 10) host via putty. I login as root and I execute the who command.
I get an output like the below
root pts/2 Jan 22 08:16 (423t51j.virago.internal.uk)
where 423t51j is the network name of my PC
Hours later, I connect from the same PC with putty and execute "who" but the terminal name appears different
root pts/2 Jan 22 11:16 (423t51j.finance.local)
Any ideas where this is set and how I can make it stay with the correct network name (which is the second , finance.local )
Many thanks
Andreas

This is probably pulled from the your DNS server based on your incoming address (or maybe your hosts file if DNS is unreachable). Have you tried running the 'who' command several times to see if this changes?
Just a thought.
J. Haynes
Denver, CO

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