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UserDatabase.NSS.txt
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NSS === NOTE: This userdb is probably useless with Dovecot v2.0.12+, since it uses getpwnam_r(), which supports error reporting. Usually NSS [http://en.wikipedia.org/wiki/Name_Service_Switch] is used with <passwd> [AuthDatabase.Passwd.txt] userdb, but it has one problem: It can't distinguish between temporary and permanent errors. So if you're using e.g. nss_ldap and your LDAP database is down, all userdb lookups may return "user doesn't exist" errors. This is especially bad if you're using <LDA.txt>, which causes the mails to be bounced back to sender. The NSS userdb works around this problem by loading the NSS modules and calling them itself. This is a bit kludgy, and it probably works only with Linux. This userdb has two parameters: * *service=<name>*: This parameter is required. The name specifies what NSS module to use, for example "ldap". * *blocking=no* causes the lookups to be done in auth master processes instead of in worker processes. Example ------- ---%<------------------------------------------------------------------------- userdb { driver = nss args = service=ldap } ---%<------------------------------------------------------------------------- (This file was created from the wiki on 2019-06-19 12:42)