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Database connection fails with authentication error SQL1639N

Troubleshooting


Problem

Connection to database when using username and password can fail with error SQL1639N The database server was unable to perform authentication because security-related database manager files on the server do not have the required operating system permissions.

[{"Product":{"code":"SSEPGG","label":"Db2 for Linux, UNIX and Windows"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Component":"Database Objects\/Config - Authorization\/Privilege","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF016","label":"Linux"},{"code":"PF027","label":"Solaris"}],"Version":"9.7;10.1;10.5","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}]

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Document Information

More support for:
Db2 for Linux, UNIX and Windows

Software version:
9.7, 10.1, 10.5

Operating system(s):
AIX, Linux, Solaris

Document number:
547707

Modified date:
01 May 2025

UID

swg21987678

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