The following is an example of the Data Source Specification section of the odbc.ini file that shows with DSN tracing entries included:
[financial] Driver=/opt/teradata/client/ODBC_64/lib/tdata.so Description=Teradata 5550H running Teradata Database DBCName=123.45.67.10 DBCName2=123.45.67.11 DBCName3=123.45.67.12 Username=odbcadm Password= Database= DefaultDatabase=sales DSNTraceEnable=YES DSNTraceFilePath=/tmp/ODBC.Trace.log DSNTraceFileMaxSize=1000000 DSNTraceOverwrite=NO DSNTraceLineNumbers=YES