Provided by: c-icap_0.4.2-2_i386 bug


       c-icap - ICAP filtering server


       c-icap [ -f  config-file ] [ -N ] [ -d  debug-level ] [ -D ]


       c-icap is an implementation of an ICAP server. It can be used with HTTP
       proxies that support the ICAP protocol.  Most  of  the  comercial  HTTP
       proxies must support ICAP pcotocol.


       -f config-file
              Specify the configuration file

       -N     Do not run as daemon

       -d level
              Specify the debug level

       -D     Print debug info to stdout


              The main configuration file
               In  this file defined the types of files and the groups of file
              By default c-icap writes its pid in this file. The path of  this
              file  can  changed  using the PidFile configuration parameter in
              the c-icap.conf file
              The commands socket. This file used to send commands to the icap
              server  from  command  line.  For  information about implemented
              commands look below in the "Implemented commands" sub-section


   Implemented commands
       Currently the following commands are implemented:

              The c-icap will shutdown

              The service will reread the config file without the need to stop
              and   restart   the   c-icap   server.   The  services  will  be

              This command causes c-icap to close and reopen  the  log  files.
              This is very useful for log rotation.

       Services and modules can define their own commands.


       To reconfigure c-icap:
                    echo -n "reconfigure" > /var/run/c-icap.ctl

       To rotate access log:
                    mv /var/log/c-icap/access.log /var/log/c-icap/access.log.1
                    echo -n "relog" > /var/run/c-icap.ctl

   Lookup tables
       Lookup  tables  are  simple  read-only  databases.   A lookup table can
       defined in c-icap.conf file using the form:
       where the type is the type of  lookup  table  and  path  is  the  extra
       information  required  to use the table (e.g. file path). Currently the
       following lookup table types defined internally by c-icap:

       file   Simple text file databases. The database records are  stored  in
              text files in the form:
               key[: value1, value2 ...]

              example path definition:

       hash   Similar  to  file  lookup tables but c-icap uses fast hashes for

              example path definition:

       regex  Similar to the file lookup  tables  but  the  keys  are  regular
              expressions in the form /regex/flags . For possible flags values
              please read 'Regex expressions' paragraph in this manual.

              example regex lookup table data:
                          /^[a-m].*/i: group1
                          /^[n-z].*/i: group2

       example path definition:

   Regex expressions
       The c-icap regex  expressions  have  the  form  /regex_definition/flags
       where "flags" is one or more letters, its of them express a flag.

       Common flags
              g This flag forces the score multiplied by the number of regex
                expression matches. For example if the expression matches 5
                times and the devined score value is 10 then the final score
                will be 50.
              i Do caseless matching
              m Match-any-character operators don't match a newline
                and ^$ operators does not match newlines within data

       If  the  module compiled using the pcre library the following flags can
       be used
              s (PCRE_DOTALL)  matches anything including NL
              x (PCRE_EXTENDED) Ignore whitespace and # comments
              A (PCRE_ANCHORED) Force pattern anchoring
              D (PCRE_DOLLAR_ENDONLY) $ not to match newline at end
              U (PCRE_UNGREEDY) Invert greediness of quantifiers
              X (PCRE_EXTRA) PCRE extra features
              u (PCRE_UTF8) Run in UTF-8 mode

   Runtime information
       Someone can retrieve runtime information using the  info  service.  The
       information  includes  bytes  received and transmited, active services,
       information  about  service  usage  and  many  other.  The  information
       provided in HTML and text format.


       Retrieve runtime information from command line:
              c-icap-client -i localhost -s "info?view=text" -req "a_url"


       c-icap-client(8)  c-icap-stretch(8) c-icap-config(8) c-icap-libicapapi-
       config(8) c-icap-mkbdb(8)




       Tsantilas Christos

                                 c_icap 0.4.2                        c-icap(8)