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Special Forums IP Networking Could a tcp issue be causing a null pointer exception? Post 302090963 by mdhmi on Thursday 28th of September 2006 09:16:55 AM
Old 09-28-2006
I agree that this sounds like a client application issue, however cover your basics: make sure the OS patches are up-to-date, verify there are no errors logged in /var/adm/messages, verify there isn't a duplex mismatch (netstat -in), etc.
 

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utmpx(4)							   File Formats 							  utmpx(4)

NAME
utmpx, wtmpx - utmpx and wtmpx database entry formats SYNOPSIS
#include <utmpx.h> /var/adm/utmpx /var/adm/wtmpx DESCRIPTION
The utmpx and wtmpx files are extended database files that have superseded the obsolete utmp and wtmp database files. The utmpx database contains user access and accounting information for commands such as who(1), write(1), and login(1). The wtmpx database contains the history of user access and accounting information for the utmpx database. USAGE
Applications should not access these databases directly, but should use the functions described on the getutxent(3C) manual page to inter- act with the utmpx and wtmpx databases to ensure that they are maintained consistently. FILES
/var/adm/utmpx user access and adminstration information /var/adm/wtmpx history of user access and adminstrative information SEE ALSO
getutxent(3C), wait(3C)wait.h(3HEAD) SunOS 5.10 22 Feb 1999 utmpx(4)
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