%META:TOPICPARENT{name="ErrorMessagesU"}%

= Error Message: {{{Unknown Host}}} =

The "unknown host" error message suggests environment or hostname resolution problems. If you receive such errors, take the following action:

# Navigate to the root directory of your <nop>OpenLink client installation.
# Set the <nop>OpenLink environment by running the appropriate script for your shell.  The following will work in most environments, but your required command may differ --%BR%%BR%
| *shell* | *command* |
| <code>sh, bash, zsh</code> and related | <code><nowiki>. ./openlink.sh</nowiki></code> |
| <code>ksh</code> and related | <code><nowiki>source ./openlink.sh</nowiki></code> |
| <code>csh, tcsh</code> and related | <code><nowiki>source ./openlink.csh</nowiki></code> |
# Run the following command:
{{{
echo $ODBCINI
}}}
#* If ODBCINI is set, re-test your connection. 
#* If ODBCINI is not set, continue with the steps below.%BR%%BR%
# cd into the root directory of your <nop>OpenLink client installation.%BR%%BR%
# Open {{{openlink.sh}}} or {{{openlink.csh}}} (whichever you ran above) in a text editor.%BR%%BR%
# Record the variable settings found there, and close the file.%BR%%BR%
# Set all the variables on your command line. For example:
{{{
export ODBCINI=/usr/openlink/bin/odbc.ini
export ODBCINSTINI=/usr/openlink/bin/odbcinst.ini
export UDBCINI=/usr/openlink/bin/udbc.ini
}}}
# Test your connection.%BR%%BR%
# If the problem persists, open your odbc.ini file. You will find this file in the /bin sub-directory of your client's <nop>OpenLink installation. %BR%%BR%
## Locate your DSN. For example:
{{{
[OpenLink]
Driver          = /usr/openlink/lib/oplodbc.sl.1
Description     = Sample OpenLink DSN
Host            = broker-host.example.com
Port            = 5000
ServerType      = SQLServer 7
FetchBufferSize = 99
UserName        = sa
Password        =
Database        = Northwind
}}}
## Change the {{{Host}}} value from a FQDN (fully-qualified domain name), to the IP address of the target host. For example:
{{{
Host               =   10.10.10.10
}}}
## Save your changes and test once more.