%META:TOPICPARENT{name="PreRequisitesINF"}%
=Identify the Informix instance name=

==Unix Database Servers==

# Log in to your Unix database server as the Informix user.
# Ensure the Informix environment is correctly set.
# Execute this command: 
{{{
echo $INFORMIXSERVER
}}}
# This should be your Informix instance name. There should be an entry in the {{{$INFORMIXDIR/etc/sqlhosts}}} file that starts with the same {{{$INFORMIXSERVER}}} value.

//Note -- there may be multiple {{{$INFORMIXSERVER}}} values, and multiple Informix instances, on a single host.//

==Windows Database Servers==

# Log in to your Windows database server.
# Launch the **Registry Editor** (**Start menu** >> **Run...** >> **{{{regedit}}}**)
# Drill down to 
{{{
HKEY_LOCAL_MACHINE\
   SOFTWARE\
      INFORMIX\
         SQLHOSTS
}}}
# There should be one or more sub-folders. Each sub-folder represents an Informix instance.