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I have hylafax-v4.0pl1 on a RedHat 4.1 Linux box. I'm trying to sendpage from a remote machine. The hfaxd SEGVs on me. When using sendpage from a local machine, it works just fine. Using my netpipes utilities and the wonderful GDB attach feature, I managed to nail the segment of code that is misbehaving: Program received signal SIGSEGV, Segmentation fault. 0x806be56 in SNPPServer::loginCmd (this=0x80be6b8, loginID=0x80ba8f0 "thoth", pass=0x0) at SNPPServer.c++:993 993 if (pass[0] == '\0' || !streq(crypt(pass, passwd), passwd)) As you can see from the GDB stack dump, pass == 0, so dereferencing it will cause most OSs to SEGV (excepting the really wacky ones who map it to a NUL character). Add a check to ensure that pass is non-0 . This bug will not be exercised if the user is authorized to use the service without a password. Since I hadn't configured my etc/hosts properly, I suffered this bug. -- Bob Forsman thoth@gainesville.fl.us http://www.gainesville.fl.us/~thoth/