**httpd**
*********

HTTP server process


Synopsis
========

   **httpd** [ **-C** *config-file* ] [ **-U** *uses* ] [ **-T** *timeout* ] [ **-D** ]
       [ **-s** ] [ **-p** *ssf* ] [ **-q** ]


Description
===========

**httpd** is an HTTP server. It accepts commands on its standard input
and responds on its standard output. It MUST be invoked by master(8)
with those descriptors attached to a remote client connection.

**httpd** reads its configuration options out of the imapd.conf(5)
file unless specified otherwise by **-C**.

If the directory "<configdirectory>/log/"*user* exists, then **httpd**
will create protocol telemetry logs for sessions authenticating as
*user*. The telemetry logs will be stored in the "log/"*user*
directory with a filename of the **httpd** process-id.


Options
=======

-C config-file

   Use the specified configuration file *config-file* rather than the
   default imapd.conf(5).

-U  uses

   The maximum number of times that the process should be used for new
   connections before shutting down.  The default is 250.

-T  timeout

   The number of seconds that the process will wait for a new
   connection before shutting down.  Note that a value of 0 (zero)
   will disable the timeout.  The default is 60.

-D

   Run external debugger specified in debug_command.

-s

   Serve HTTP over SSL (https).  All data to and from **httpd** is
   encrypted using the Secure Sockets Layer.

-p  ssf

   Tell **httpd** that an external layer exists.  An *SSF* (security
   strength factor) of 1 means an integrity protection layer exists.
   Any higher SSF implies some form of privacy protection.

-q

   Ignore quotas on DAV appends. This feature was introduced in
   version 3.0.


Examples
========

**httpd** is commonly included in the SERVICES section of
cyrus.conf(5) like so:

   SERVICES {
       imap        cmd="imapd -U 30" listen="imap" prefork=0
       imaps       cmd="imapd -s -U 30" listen="imaps" prefork=0 maxchild=100
       lmtpunix    cmd="lmtpd" listen="/var/run/cyrus/socket/lmtp" prefork=0 maxchild=20
       sieve       cmd="timsieved" listen="sieve" prefork=0
       notify      cmd="notifyd" listen="/var/run/cyrus/socket/notify" proto="udp" prefork=1
       **httpd       cmd="httpd" listen=8080 prefork=1 maxchild=20**
   }


History
=======

A beta release of **httpd** was first introduced in the *caldav*
branch of Cyrus in version 2.4.17, and was included in the mainline
releases beginning in version 2.5.0.

The quota override option, **-q**, was introduced with Cyrus version
3.0.


Files
=====

/etc/imapd.conf


See Also
========

imapd.conf(5), master(8)