Hello, We are just setting up 2 new FreeRadius boxes to handle DSL radius authentication. This is nothing new to us. What is new is using a MySql data base with the FreeRadius. Anyway we have most everything working as should be. We are running the MySql databases as master and slave for replication on the backup FreeRadius server. This we have setup and running. One problem we ran into was on the backup server (slave MySql) in the radiusd.conf file we had set: post-auth { sql } We found this would change the radius->radpostauth table on the slave and then we would get "Slave: Error 'Duplicate entry" errors. So we commented out the "sql" line in the post-auth section of the radiusd.conf file and that solved the problem. My question?????? Should I be looking for any other got-yas before putting these servers into production? Thanks, Ken