Mar 2 10:32:32 server_B named[3686]: mem.c:1404: REQUIRE(mpctx->allocated == 0) failed Mar 2 10:32:32 server_B named[3686]: exiting (due to assertion failure) This is not a permanent condition, it is okay now. Regards, Tan, Yang-Kwang Systems Engineer BuzzCity Pte Ltd Email: yktan at buzzcity.com, systems at buzzcity.com