Thank you for your reply. Yes, they are able to logon to Linux server.
With
if [ -f /home/db2inst1/sqllib/db2profile ]; then
. /home/db2inst1/sqllib/db2profile
fi
in their profile, they are able to run some DB2 commands but can not connect to the database with the local group account given permissions to connect to the database.
No we are not using Samba..............Thanks
Calvin.