Freshclam

freshclam updates the ClamCAV virus databases

Anwendungen

# freshclam
Mon May 16 13:23:54 2022 -> ClamAV update process started at Mon May 16 13:23:54 2022
Mon May 16 13:23:56 2022 -> daily database available for update (local version: 26542, remote version: 26543)
Current database is 1 version behind.
Downloading database patch # 26543...
Time:    0.3s, ETA:    0.0s [========================>]    2.12KiB/2.12KiB
Mon May 16 13:23:56 2022 -> Testing database: '/var/lib/clamav/tmp.2f94ecd969/clamav-0c3b47c0377e3827944de16a4e3d3497.tmp-daily.cld' ...
Mon May 16 13:23:59 2022 -> Database test passed.
Mon May 16 13:23:59 2022 -> daily.cld updated (version: 26543, sigs: 1984431, f-level: 90, builder: raynman)
Mon May 16 13:23:59 2022 -> main.cld database is up-to-date (version: 62, sigs: 6647427, f-level: 90, builder: sigmgr)
Mon May 16 13:23:59 2022 -> bytecode.cld database is up-to-date (version: 333, sigs: 92, f-level: 63, builder: awillia2)
Mon May 16 13:23:59 2022 -> Clamd successfully notified about the update.

Testfragen

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TMP

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.

--show-progress
       Show download progress percentage.

--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.

-F, --foreground
       Don't fork into background (for use in daemon mode).

-u USER, --user USER
       Run  as  USER. By default (when started by root) freshclam drops privileges and
       operates as the 'clamav' 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 'cla‐
       mav' 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 con‐
       fig file but you can use a different one. Both local and TCP sockets  are  sup‐
       ported.

-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 with‐
       out 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.

--update-db=DBNAME
       With this option you can limit updates to a subset of database files.  The  DB‐
       NAME  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 distributed through the ClamAV mir‐
       rors,  your  custom  databases  (specified  with  DatabaseCustomURL  in  fresh‐
       clam.conf) will not be ignored.

ENVIRONMENT VARIABLES

freshclam uses the following environment variables:

CURL_CA_BUNDLE  -  May be set to the path of a file (bundle) containing one or more CA
certificates. This will override the default openssl certificate path.

       Note that the CURL_CA_BUNDLE environment variable is also used by the curl com‐
       mand line tool for the same purpose.

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 'clamav' user from /etc/passwd.

61: Can't drop privileges.

62: Can't initialize logger.

FILES

/usr/local/etc/freshclam.conf

SEE ALSO

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