freshclam(1)

NAME

   freshclam - update virus databases

SYNOPSIS

   freshclam [options]

DESCRIPTION

   freshclam is a virus database update tool for ClamAV.

OPTIONS

   Freshclam reads its configuration from freshclam.conf. The settings can
   be overwritten with command line options.

   -h, --help
          Output help information and exit.

   -V, --version
          Print version number and exit.

   -v, --verbose
          Be  verbose.  This  option  causes  freshclam  to   print   much
          additional information.

   --debug
          Enable debug messages from LibClamAV.

   --quiet
          Be quiet - output only error messages.

   --no-warnings
          Don't print and log warnings.

   --stdout
          Write all messages to stdout.

   --config-file=FILE
          Read configuration from FILE.

   -l FILE, --log=FILE
          Log report to FILE.

   -d, --daemon
          Run  in  a  daemon  mode.  Defaults  to 12 checks per day unless
          otherwise specified by --checks or freshclam.conf.

   -p FILE, --pid=FILE
          Write daemon's pid to FILE.

   -u USER, --user USER
          Run as USER. By default (when started by root)  freshclam  drops
          privileges and operates as the '' user.

   --no-dns
          This  option  forces  old non-DNS verification method (without a
          TTL delay).

   -c #n, --checks=#n
          Check #n times per day for a new database. #n must be between  1
          and 50.

   --datadir=DIRECTORY
          Install  new  database  in  DIRECTORY.  The  directory  must  be
          writable for the '' user or unprivileged user running freshclam.

   --daemon-notify=/path/to/clamd.conf
          Notify the daemon about the new database. By default it reads  a
          hardcoded  config  file  but  you  can use a different one. Both
          local and TCP sockets are supported.

   -a IP, --local-address=IP
          Use (local)  IP  for  HTTP  downloads.  Useful  for  multi-homed
          systems.  If  binding  fails  for  whatever reason, a warning is
          issued and freshclam behaves like without this flag.

   --on-update-execute=COMMAND
          Execute COMMAND after successful update.

   --on-error-execute=COMMAND
          Execute COMMAND if error occurred. Remember, that virus database
          freshness is the most important thing in anti-virus system. With
          this  option  freshclam  can  alert  you  (eg.  send  SMS)  when
          something is going wrong.

   --on-outdated-execute=COMMAND
          Execute  COMMAND when freshclam reports outdated version. In the
          command string %v will be replaced by the new version number.

   --list-mirrors
          Print mirror details from mirrors.dat (cache file for the mirror
          manager).

   --submit-stats[=/path/to/clamd.conf]
          Upload   detection   statistics   to  the  ClamAV  Project  (see
          freshclam.conf(5):SubmitDetectionStats  for  more  details).  No
          database update will be performed. This option only works in the
          interactive mode.

   --update-db=DBNAME
          With this option you can limit updates to a subset  of  database
          files.   The  DBNAME  should  be  "main",  "daily",  "bytecode",
          "safebrowsing" or one of the  3rd  party  database  names.  This
          option  can  be  used  multiple  times  and  only works with the
          official and 3rd party databases distrubuted through the  ClamAV
          mirrors, your custom databases (specified with DatabaseCustomURL
          in freshclam.conf) will not be ignored.

   --enable-stats
          Enable submission of statistical data.

   --stats-host-id=UUID
          HostID in the form of an UUID to use when submitting statistical
          information.

EXAMPLES

   (0) Download database to default directory:

          freshclam

   (1) Download database to current directory:

          freshclam --datadir=.

   (2) Run as a daemon and check 2 times per day for new database:

          freshclam -d -c 2

RETURN CODES

   Some  return  codes  of  freshclam  can  be overwritten with a built-in
   command  EXIT_n  which   can   be   passed   to   --on-*-execute,   eg.
   --on-update-execute=EXIT_1  will  force  freshclam  to  always return 1
   after successful database update.

   0 : Database is up-to-date or successfully updated.

   40: Unknown option passed.

   50: Can't change directory.

   51: Can't check MD5 sum.

   52: Connection (network) problem.

   53: Can't unlink file.

   54: MD5 or digital signature verification error.

   55: Error reading file.

   56: Config file error.

   57: Can't create new file.

   58: Can't read database from remote server.

   59: Mirrors are not fully synchronized (try again later).

   60: Can't get information about '' user from /etc/passwd.

   61: Can't drop privileges.

   62: Can't initialize logger.

FILES

   /etc/clamav/freshclam.conf

CREDITS

   Please check the full documentation for credits.

AUTHOR

   Tomasz Kojm <[email protected]>, Kevin Lin <[email protected]>

SEE ALSO

   freshclam.conf(5), clamd(8), clamd.conf(5), clamscan(1)

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