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    <p>Nothing definitive. It's just that the socket expects certain
      type of input, this is comparable of trying to configure postfix
      to speak to imap-master socket. There is no reason why it should
      work.<br>
    </p>
    <p>Aki<br>
    </p>
    <br>
    <div class="moz-cite-prefix">On 26.03.2018 15:03, Vladimir Tiukhtin
      wrote:<br>
    </div>
    <blockquote type="cite"
      cite="mid:65b5db21-2c21-31db-19e8-65e4e447949c@asergis.com">
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      <p>Hi</p>
      <p>And why it is not working with that name? Do you have any
        document describing "special" names? Thanks</p>
      <p>Vladimir<br>
      </p>
      <br>
      <div class="moz-cite-prefix">On 26/03/18 13:02, Aki Tuomi wrote:<br>
      </div>
      <blockquote type="cite"
        cite="mid:1b7f180a-50e4-8ad7-b579-573ace4d26f3@dovecot.fi">
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        <p>Dovecot has some special socket names, auth-userdb is one of
          those.</p>
        <p>Aki<br>
        </p>
        <br>
        <div class="moz-cite-prefix">On 26.03.2018 14:47, Vladimir
          Tiukhtin wrote:<br>
        </div>
        <blockquote type="cite"
          cite="mid:e85eaccc-c5bd-b8b3-6fba-a2e4458fcf60@asergis.com">
          <p>Hi</p>
          <p>What you have suggested works.</p>
          <p>service auth {<br>
               unix_listener /var/spool/postfix/private/auth {<br>
                     user = postfix<br>
                     group = postfix<br>
                     mode = 0600<br>
              }<br>
            }</p>
          This works as well:<br>
          <br>
          service auth {<br>
             unix_listener /var/run/dovecot/auth {<br>
                   owner = postfix<br>
                   group = postfix<br>
                   mode = 0600<br>
            }<br>
          }<br>
          <br>
          And this works as well:<br>
          <br>
          service auth {<br>
             unix_listener /var/run/dovecot/auth-test-test {<br>
                   owner = postfix<br>
                   group = postfix<br>
                   mode = 0600<br>
            }<br>
          }<br>
          <br>
          And only when socket has name "auth-userdb"<br>
          <br>
          service auth {<br>
             unix_listener auth-userdb {<br>
                   owner = postfix<br>
                   group = postfix<br>
                   mode = 0600<br>
            }<br>
          }<br>
          <br>
          it doesn't.<br>
          <br>
          When socket name is "auth-userdb" I can see in the log:<br>
          <br>
          Mar 26 11:43:59 mail-server postfix/smtpd[3648]: connect from
          unknown[10.15.5.127]<br>
          Mar 26 11:43:59 mail-server dovecot[3577]: auth: Debug:
          Loading modules from directory: /usr/lib64/dovecot/auth<br>
          Mar 26 11:43:59 mail-server dovecot[3577]: auth: Debug: Module
          loaded: /usr/lib64/dovecot/auth/libdriver_mysql.so<br>
          Mar 26 11:43:59 mail-server dovecot[3577]: auth: Debug: Module
          loaded: /usr/lib64/dovecot/auth/libdriver_sqlite.so<br>
          Mar 26 11:43:59 mail-server dovecot[3577]: auth: Debug: Wrote
          new auth token secret to
          /var/run/dovecot//auth-token-secret.dat<br>
          Mar 26 11:43:59 mail-server postfix/smtpd[3648]: fatal: no
          SASL authentication mechanisms<br>
          Mar 26 11:43:59 mail-server dovecot[3577]: auth: Debug: master
          in: CPID        3648<br>
          Mar 26 11:43:59 mail-server dovecot[3577]: auth: Error: BUG:
          Unknown command in userdb socket: CPID?3648<br>
          Mar 26 11:44:00 mail-server postfix/master[3644]: warning:
          process /usr/libexec/postfix/smtpd pid 3648 exit status 1<br>
          Mar 26 11:44:00 mail-server postfix/master[3644]: warning:
          /usr/libexec/postfix/smtpd: bad command startup -- throttling<br>
          <br>
          Vladimir<br>
          <br>
          <div class="moz-cite-prefix">On 26/03/18 09:55, Aki Tuomi
            wrote:<br>
          </div>
          <blockquote type="cite"
            cite="mid:094fd30c-57f4-9977-b1b5-5a8eaac797d4@dovecot.fi">
            Ah i see.<br>
            <br>
            try this:<br>
            <br>
            dovecot.conf:<br>
            <br>
            service auth {<br>
               unix_listener /var/spool/postfix/private/auth {<br>
                     owner = postfix<br>
                     group = postfix<br>
                     mode = 0600<br>
              }<br>
            }<br>
            <br>
            postfix.conf:<br>
            <br>
            smtpd_sasl_path = private/auth<br>
            <br>
            Aki<br>
            <br>
            <div class="moz-cite-prefix">On 26.03.2018 11:25, Vladimir
              Tiukhtin wrote:<br>
            </div>
            <blockquote type="cite"
              cite="mid:040acbc7-9949-f719-3f17-e14f2147cbea@asergis.com">
              <p>Hello</p>
              <p>Yes, please find my postfix config:</p>
              <p>smtpd_sasl_type = dovecot<br>
                #smtpd_sasl_path = /var/run/dovecot/auth<br>
                smtpd_sasl_path = /var/run/dovecot/auth-userdb<br>
                smtpd_sasl_auth_enable = yes<br>
                smtpd_relay_restrictions = permit_mynetworks,
                permit_sasl_authenticated, reject_unauth_destination<br>
              </p>
              <p>As I mentioned if I remove minus from socket name
                everything works perfect. Thanks</p>
              <p>Vladimir</p>
              <br>
              <div class="moz-cite-prefix">On 26/03/18 08:37, Aki Tuomi
                wrote:<br>
              </div>
              <blockquote type="cite"
                cite="mid:16f52b0c-8d50-b46a-0cb7-4f6e949ed5f1@dovecot.fi">
                <p>Did you tell postfix it's talking to dovecot?</p>
                <p>Aki<br>
                </p>
                <br>
                <div class="moz-cite-prefix">On 25.03.2018 20:29,
                  Vladimir Tiukhtin wrote:<br>
                </div>
                <blockquote type="cite"
                  cite="mid:020aa092-120f-43d0-e20c-c698539c35a8@asergis.com">
                  <p>Hi guys.</p>
                  <p>I am getting strange error:</p>
                  <p><br>
                  </p>
                  <p><font color="#ff0000">BUG: Unknown command in
                      userdb socket: CPID?2625</font></p>
                  <p><br>
                  </p>
                  <p>I am using service auth  to authenticate users on
                    postfix.</p>
                  <p><b>My OS</b>:</p>
                  <p># cat /etc/os-release <br>
                    NAME="CentOS Linux"<br>
                    VERSION="7 (Core)"<br>
                    ID="centos"<br>
                    ID_LIKE="rhel fedora"<br>
                    VERSION_ID="7"<br>
                    PRETTY_NAME="CentOS Linux 7 (Core)"<br>
                    ANSI_COLOR="0;31"<br>
                    CPE_NAME="cpe:/o:centos:centos:7"<br>
                    HOME_URL=<a class="moz-txt-link-rfc2396E"
                      href="https://www.centos.org/"
                      moz-do-not-send="true">"https://www.centos.org/"</a><br>
                    BUG_REPORT_URL=<a class="moz-txt-link-rfc2396E"
                      href="https://bugs.centos.org/"
                      moz-do-not-send="true">"https://bugs.centos.org/"</a><br>
                    <br>
                    CENTOS_MANTISBT_PROJECT="CentOS-7"<br>
                    CENTOS_MANTISBT_PROJECT_VERSION="7"<br>
                    REDHAT_SUPPORT_PRODUCT="centos"<br>
                    REDHAT_SUPPORT_PRODUCT_VERSION="<br>
                  </p>
                  <p><b>My dovecot:</b></p>
                  <p># dovecot --version<br>
                    2.2.10<br>
                  </p>
                  <p><b>My config</b>:</p>
                  <p>service auth {<br>
                      unix_listener auth-userdb {<br>
                        mode = 0600<br>
                        user = postfix<br>
                        group = postfix<br>
                      }<br>
                    }</p>
                  <p><b>My Postfix:</b></p>
                  <p># rpm -qa | grep postf<br>
                    postfix-2.10.1-6.el7.x86_64<br>
                  </p>
                  <p><b>Log</b>:</p>
                  <p>Mar 25 16:52:33 mail-server postfix/smtpd[2625]:
                    connect from unknown[10.254.200.202]<br>
                    Mar 25 16:52:33 mail-server dovecot[2621]: auth:
                    Debug: Loading modules from directory:
                    /usr/lib64/dovecot/auth<br>
                    Mar 25 16:52:33 mail-server dovecot[2621]: auth:
                    Debug: Module loaded:
                    /usr/lib64/dovecot/auth/libdriver_mysql.so<br>
                    Mar 25 16:52:33 mail-server dovecot[2621]: auth:
                    Debug: Module loaded:
                    /usr/lib64/dovecot/auth/libdriver_sqlite.so<br>
                    Mar 25 16:52:33 mail-server dovecot[2621]: auth:
                    Debug: Read auth token secret from
                    /var/run/dovecot//auth-token-secret.dat<br>
                    Mar 25 16:52:33 mail-server dovecot[2621]: auth:
                    Debug: master in: CPID        2625<br>
                    Mar 25 16:52:33 mail-server dovecot[2621]: auth:
                    Error: BUG: Unknown command in userdb socket:
                    CPID?2625<br>
                    Mar 25 16:52:33 mail-server postfix/smtpd[2625]:
                    fatal: no SASL authentication mechanisms<br>
                    Mar 25 16:52:34 mail-server postfix/master[2424]:
                    warning: process /usr/libexec/postfix/smtpd pid 2625
                    exit status 1<br>
                    Mar 25 16:52:34 mail-server postfix/master[2424]:
                    warning: /usr/libexec/postfix/smtpd: bad command
                    startup -- throttling</p>
                  <p>The interesting thing is IF I am taking off "-"
                    (minus) from the socket name, everything works just
                    perfect! So if I change config to:<br>
                    <br>
                  </p>
                  <p>service auth {<br>
                      unix_listener blabla {<br>
                        mode = 0600<br>
                        user = postfix<br>
                        group = postfix<br>
                      }<br>
                    }</p>
                  <p>Mar 25 16:55:12 mail-server postfix/smtpd[2872]:
                    connect from unknown[10.254.200.202]<br>
                    Mar 25 16:55:12 mail-server dovecot[2786]: auth:
                    Debug: Loading modules from directory:
                    /usr/lib64/dovecot/auth<br>
                    Mar 25 16:55:12 mail-server dovecot[2786]: auth:
                    Debug: Module loaded:
                    /usr/lib64/dovecot/auth/libdriver_mysql.so<br>
                    Mar 25 16:55:12 mail-server dovecot[2786]: auth:
                    Debug: Module loaded:
                    /usr/lib64/dovecot/auth/libdriver_sqlite.so<br>
                    Mar 25 16:55:12 mail-server dovecot[2786]: auth:
                    Debug: Read auth token secret from
                    /var/run/dovecot//auth-token-secret.dat<br>
                    Mar 25 16:55:12 mail-server dovecot[2786]: auth:
                    Debug: auth client connected (pid=0)<br>
                    Mar 25 16:55:13 mail-server dovecot[2786]: auth:
                    Debug: client in: AUTH        1        PLAIN       
                    service=smtp        nologin       
                    lip=192.168.101.24        rip=10.254.200.202       
                    secured        resp=<hidden><br>
                    Mar 25 16:55:13 mail-server dovecot[2786]: auth:
                    Debug: cache(<a class="moz-txt-link-abbreviated"
                      href="mailto:admin@asergis.com,10.254.200.202"
                      moz-do-not-send="true">admin@asergis.com,10.254.200.202</a>):
                    miss<br>
                    Mar 25 16:55:13 mail-server dovecot[2786]:
                    auth-worker(2878): Debug: Loading modules from
                    directory: /usr/lib64/dovecot/auth<br>
                    Mar 25 16:55:13 mail-server dovecot[2786]:
                    auth-worker(2878): Debug: Module loaded:
                    /usr/lib64/dovecot/auth/libdriver_mysql.so<br>
                    Mar 25 16:55:13 mail-server dovecot[2786]:
                    auth-worker(2878): Debug: Module loaded:
                    /usr/lib64/dovecot/auth/libdriver_sqlite.so<br>
                    Mar 25 16:55:13 mail-server dovecot[2786]:
                    auth-worker(2878): Debug: sql(<a
                      class="moz-txt-link-abbreviated"
                      href="mailto:admin@asergis.com,10.254.200.202"
                      moz-do-not-send="true">admin@asergis.com,10.254.200.202</a>):
                    query: SELECT userid AS username, domain, password
                    FROM users WHERE userid = 'admin' AND domain =
                    'asergis.com'<br>
                    Mar 25 16:55:13 mail-server dovecot[2786]: auth:
                    Debug: client passdb out: OK        1        <a
                      class="moz-txt-link-abbreviated"
                      href="mailto:user=admin@asergis.com"
                      moz-do-not-send="true">user=admin@asergis.com</a><br>
                    Mar 25 16:55:13 mail-server postfix/smtpd[2872]:
                    5C63030208: client=unknown[10.254.200.202],
                    sasl_method=PLAIN, <a
                      class="moz-txt-link-abbreviated"
                      href="mailto:sasl_username=admin@asergis.com"
                      moz-do-not-send="true">sasl_username=admin@asergis.com</a><br>
                    Mar 25 16:55:13 mail-server postfix/cleanup[2881]:
                    5C63030208: message-id=<a
                      class="moz-txt-link-rfc2396E"
                      href="mailto:d7706aa7-a2ad-6890-5590-e6f83b5ec3af@asergis.com"
                      moz-do-not-send="true"><d7706aa7-a2ad-6890-5590-e6f83b5ec3af@asergis.com></a><br>
                    Mar 25 16:55:13 mail-server postfix/qmgr[2870]:
                    5C63030208: from=<a class="moz-txt-link-rfc2396E"
                      href="mailto:admin@asergis.com"
                      moz-do-not-send="true"><admin@asergis.com></a>,
                    size=622, nrcpt=1 (queue active)</p>
                  <p><br>
                  </p>
                  <p>P.s. I don't mind to use socket without minus on
                    its name. But this looks really strange. Thanks. You
                    are awesome<br>
                  </p>
                  <p><br>
                  </p>
                  <p>Vladimir<br>
                  </p>
                </blockquote>
                <br>
              </blockquote>
              <br>
            </blockquote>
            <br>
          </blockquote>
          <br>
        </blockquote>
        <br>
      </blockquote>
      <br>
    </blockquote>
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