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netmano
Asked: 2012-03-25 00:43:37 +0800 CST

Disable user_deny.db in Cyrus/imapd

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We have a cyrus 2.4.12 on Debian, we use packages, rather than building each software ourselves.

I am getting the this "log" constantly, a lot of, various users, and 8-10 times per user request:

fetching user_deny.db entry for 'user123'

I have searched for it, but haven't found a real solution, there were some patches for 2.3.xx, but we don't want ot build it, we prefer to use packages.

Is there any solution to disable the user_deny.db at all. We don't need this feature. It wastes the CPU as disk.

linux debian imap pop3 cyrus

5 Answers

  1. I would switch to syslog-ng and filter out this message by configuring:

    filter f_imapd { facility(local6) and level(debug) and not match("regexp" value("fetching user_deny.db entry for")); };

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  2. If you use syslog-ng, you can also try suppress identical messages with suppress configuration option:

    options {
 suppress(30);
};

    In this example identical messages will be logged once per every 30 seconds

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  3. Seems the correct filter syntax is:

    filter f_imapd { facility(local6) and not match("fetching user_deny.db entry for" value("MESSAGE")); };
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  4. I found the following solution to the problem. Create a (new) user_deny.db from an (empty) flat file with cvt_cyrusdb and the messages will disappear.

    https://www.cyrusimap.org/~vanmeeuwen/imap/admin/sop-userdeny.html

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  5. cyrus-imapd sends all levels of messages (debug, info, warnings, error), and cannot disconnect or change the level of messages. It's reported in bugzilla in 2011, but they don't seem to be interested in fixing it, so messages can't be disconnected. To remove them from the log, they can be intercepted from rsyslog.

    To do it, create a file in /etc/rsyslog.d such as:

    vi /etc/rsyslog.d/fetching_user_deny_error.conf

    Add this to the file:

    if $programname == 'cyrus' and $msg contains_i 'fetching user_deny' then ~

    To finish restart rsyslog:

    service rsyslog restart
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