freshclam Linux Service, freshclam Manual, Services Command Description, Tutorial

Tutorials

Linux-services

Topic

What is freshclam?
freshclam Linux service

Explanation

freshclam service:
ClamAV updater. It is a virus database update tool for ClamAV.

Required(ON/OFF):      View complete List of Services
Home PC : NO
Server  : NO

Now lets see the manual of freshclam service.

Manual freshclam:
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 many additional informations.

--quiet
Be quiet - output only error messages.

--stdout
Write all messages to stdout.

-l FILE, --log=FILE
Write download report to FILE.

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

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

-d, --daemon
Run in a daemon mode. This option requires --checks. -p FILE, --pid=FILE Write daemon's pid to FILE.

--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.

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

--on-outdated-execute=COMMAND
Execute COMMAND when freshclam reports outdated version.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
Pring mirror details from mirrors.dat (cache file for the mirror manager).

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
0 : Database successfully updated.

1 : Database is up-to-date.

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
/etc/freshclam.conf

CREDITS
Please check the full documentation for credits.

AUTHOR
Tomasz Kojm

SEE ALSO
clamd(8), clamdscan(1), clamscan(1), sigtool(1), clamd.conf(5), clamav-milter(8)