Sending RACF-encrypted passwords

For Db2 subsystems that use SNA protocols to communicate with each other, you can specify password encryption in the SYSIBM.LUNAMES table.

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Table 1. Specifying password encryption in SYSIBM.LUNAMES
LUNAME	USERNAMES	ENCRYPTPSWDS
LUXXX	O	Y

The partner Db2 must also specify password encryption in its SYSIBM.LUNAMES table. Both partners must register each ID and its password with RACF®. Then, for every request to LUXXX, your Db2 calls RACF to supply an encrypted password to accompany the ID. With password encryption, you do not use the PASSWORD column of SYSIBM.USERNAMES, so the security of that table becomes less critical.