Hi Crowd! I'm trying to connect to the sql server 2005 database from *NIX machine: I have the following configuration: Linux 64bit ruby -v ruby 1.8.6 (2007-09-24 patchlevel 111) [x86_64-linux] important gems: dbd-odbc (0.2.4) dbi (0.4.1) active record sql server adapter - as plugin ruby-odbc 0.9996 (installed without any options.) unixODBC is installed freeTDS is installed cat /etc/odbcinst.ini [FreeTDS] Description = TDS driver (Sybase/MS SQL) Driver = /usr/lib/libtdsodbc.so Setup = /usr/lib/odbc/libtdsS.so CPTimeout = CPReuse = FileUsage = 1 DSN: DRIVER=FreeTDS;TDS_Version=8.0;SERVER=XXXX;DATABASE=XXX;Port=1433;uid=XXX;pwd=XXXX;" or DRIVER=/usr/lib/libtdsodbc.so;TDS_Version=8.0;SERVER=XXXX;DATABASE=XXX;Port=1433;uid=XXX;pwd=XXXX;" I receive the following error: >>ActiveRecord::Base.sqlserver_connection({"mode"=>"ODBC", "adapter"=>"sqlserver", "dsn"=>my_dns) DBI::DatabaseError: IM002 (0) [unixODBC][Driver Manager]Data source name not found, and no default driver specified from /usr/lib/ruby/1.8/DBD/ODBC/ODBC.rb:95:in `connect' from /usr/lib/ruby/1.8/dbi.rb:424:in `connect' from /usr/lib/ruby/1.8/dbi.rb:215:in `connect' from /opt/ublip/rails/current/vendor/plugins/activerecord-sqlserver-adapter/lib/active_record/connection_adapters/sqlserver_adapter.rb:47:in `sqlserver_connection' It looks like ODBC unable to find appropriate ODBC driver, but I have no ideas why. I had a problem with /usr/lib/libtdsodbc.so which is empty in default debian package free-tds dev, but i solved it with remove broken package and installation from sources. Will appreciate any thought! Thanks & Regards Note: I'm albe to connect using the same steps on mac 10.5