negaret@cicb.fr (Roger Negaret - CICB Rennes 99.36.20.00) (04/02/91)
I am administering a gateway machine and I frequently see the following error messages: ----- Transcript of session follows ----- 451 makeconnection: server "smtp" unknown: Address already in use 554 cicb (ether)... 554 System file missing 554 picheral@CICB.FR... System file missing I don't understand what is happening there. I will be very pleased if somebody can help me on this. Thanks. --------------------------------------------------------------------------- Roger Negaret CICB Campus de Beaulieu 35042 Rennes Cedex France Phone: 99 36 20 00 Fax: 99 38 38 32 Telex: UNIRISA 950 473F E-mail: negaret@cicb.fr
anselmo-ed@cs.yale.edu (Ed Anselmo) (04/09/91)
>>>>> On 2 Apr 91 14:27:31 GMT, negaret@cicb.fr (Roger Negaret - CICB Rennes 99.36.20.00) said: > ----- Transcript of session follows ----- > 451 makeconnection: server "smtp" unknown: Address already in use > 554 cicb (ether)... 554 System file missing > 554 picheral@CICB.FR... System file missing I've seen this error message when a YP/NIS server doesn't respond in time, and getservbyname() returns an error. Usually it's because a faster machine has done a ypbind to a slow (typically overloaded) machine, -- Ed Anselmo anselmo-ed@cs.yale.edu {harvard,cmcl2}!yale!anselmo-ed
k2@bl.physik.tu-muenchen.de (Klaus Steinberger) (04/09/91)
anselmo-ed@cs.yale.edu (Ed Anselmo) writes: >>>>>> On 2 Apr 91 14:27:31 GMT, negaret@cicb.fr (Roger Negaret - CICB Rennes 99.36.20.00) said: >> ----- Transcript of session follows ----- >> 451 makeconnection: server "smtp" unknown: Address already in use >> 554 cicb (ether)... 554 System file missing >> 554 picheral@CICB.FR... System file missing >I've seen this error message when a YP/NIS server doesn't respond in >time, and getservbyname() returns an error. Usually it's because a >faster machine has done a ypbind to a slow (typically overloaded) >machine, I've seen this error many times, some machines have a problem with ypserv. The symptom of the problem is that sometimes getservbyname (and propably other yp calls) returns a NULL-POINTER instead off the correct result. We found this error on our PCS-Cadmus and on our CDC (Mips) machines. Due to patch information we got from CDC and PCS, ypserv has problems with simultaneous accesses off two or more clients. Due to the patch information from CDC, the problem is located in libdbm. Testing for this problem is simple. Write a program, which makes a call to getservbyname in a endless loop, with a service-name which is well known (e.g. getservbyname("time","tcp")). Print a error message, if a Null-Pointer is returned, and run this program twice at a time. Sincerely, Klaus Steinberger -- Klaus Steinberger Beschleunigerlabor der TU und LMU Muenchen Phone: (+49 89)3209 4287 Hochschulgelaende FAX: (+49 89)3209 4280 D-8046 Garching, Germany BITNET: K2@DGABLG5P Internet: k2@bl.physik.tu-muenchen.de