Hi all, After receiving this error message on my logfile I found on google that this was a problem with bind versions prior to 9.2.1. But I am using version 9.3.1, with latest patches from FC4. *** Jun 23 22:57:13 mailhost named[1285]: name.c:552: INSIST(count1 <= 63 && count2 <= 63) failed Jun 23 22:57:13 mailhost named[1285]: exiting (due to assertion failure) *** Is there any possibility that this problem has not been corrected since version 9.2.1?? Apreciate any tip. Thanks, Gustavo