Blog posts

Client host sending wrong input to LPD port

We are starting to see more and more support incidents about the message "client host x.x.x.x sending wrong input to LPD port".  This message should require little interpretation since network administrators are the target audience for RPM.  It gives the IP address of a host communicating improperly with RPM.  In other words, this host is not using proper LPR/LPD protocol.