我正在使用Postfix構建郵件服務器,并設置身份驗證以使用Postfixadmin檢查數據庫設置.

我可以通過Courier IMAP進行身份驗證,因為它可以正確地驗證哈希密碼,但我懷疑我的SASL PAM-MySQL SMTP身份驗證機制不能.

我在/var/log/mail.log中收到這些錯誤：

pam_unix(smtp:auth): check pass; user unknown

Aug 22 03:23:08 omitted saslauthd[26402]: pam_unix(smtp:auth): authentication failure; logname= uid=0 euid=0 tty= ruser= rhost=

Aug 22 03:23:10 omitted saslauthd[26402]: DEBUG: auth_pam: pam_authenticate failed: Authentication failure

Aug 22 03:23:10 omitted saslauthd[26402]: do_auth : auth failure: [user=user@domain.com] [service=smtp] [realm=domain.com] [mech=pam] [reason=PAM auth error]

以下是/etc/pam.d/smtp的內容：

auth required pam_mysql.so user=postfixadmin passwd=omitted host=127.0.0.1 db=postfixadmin table=mailbox usercolumn=username passwdcolumn=password crypt=2

account sufficient pam_mysql.so user=postfixadmin passwd=omitted host=127.0.0.1 db=postfixadmin table=mailbox usercolumn=username passwdcolumn=password crypt=2

以下是/etc/postfixadmin/config.inc.php中用于密碼加密的相關代碼段：

// Encrypt

// In what way do you want the passwords to be crypted?

// md5crypt = internal postfix admin md5

// md5 = md5 sum of the password

// system = whatever you have set as your PHP system default

// cleartext = clear text passwords (ouch!)

// mysql_encrypt = useful for PAM integration

// authlib = support for courier-authlib style passwords

// dovecot:CRYPT-METHOD = use dovecotpw -s 'CRYPT-METHOD'. Example: dovecot:CRAM-MD5

$CONF['encrypt'] = 'mysql_encrypt';

這是我的/etc/postfix/sasl/smtp.conf的內容：

pwcheck_method: saslauthd

mech_list: plain login

log_level: 7

allow_plaintext: true

auxprop_plugin: sql

sql_engine: mysql

sql_hostnames: 127.0.0.1

sql_user: postfixadmin

sql_passwd: omitted

sql_database: postfixadmin

sql_select: select password from mailbox where username='%u@%r'

我嘗試使用MD5哈希,但Courier會失敗.那就是窗外……

總結

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