clamav.conf(5)

NAME

clamav.conf - a configuration file for Clam AntiVirus Daemon

DESCRIPTION

clamav.conf configures the Clam AntiVirus daemon, clamd(8).

FILE FORMAT
The file consists of comments and options with optional arguments. Each line that starts with a hash (#) symbol is ignored. Option names are case sensitive and of the form Option Argument. There are a few types of arguments:

STRING
    String without blank characters.

SIZE
    Size in bytes. You can use the 'M' or 'm' modifiers for megabytes and 'K' or 'k' for kilobytes.

NUMBER
    Unsigned integer.

DIRECTIVES

If some option is not used (hashed or doesn't exist in the configuration file), clamd takes a default action.

Example
    If this option is set clamd will not run.

LogFile STRING
    Enable logging to selected file.
    Default: disabled.

LogFileUnlock
    Disable a system lock that protects against running clamd with a same configuration multiple times.
    Default: disabled.

LogFileMaxSize SIZE
    Limit a size of a log file. The logger will be automatically disabled if the file is greater than SIZE. Value of 0 disables the limit.
    Default: 1M

LogTime
    Log time with each message.
    Default: disabled.

LogClean
    Log clean files.
    Default: disabled.

LogSyslog
    Use system logger (can work together with LogFile).
    Default: disabled.

LogVerbose
    Enable verbose logging.
    Default: disabled.

PidFile STRING
    Save a process identifier of a listening daemon (main thread) to a specified file.
    Default: disabled.

DatabaseDirectory STRING
    Path to a directory containing database files.
    Default: hardcoded directory.

LocalSocket STRING
    Path to a local (Unix) socket the daemon will listen on.
    Default: disabled.

FixStaleSocket
    Remove stale socket after unclean shutdown.
    Default: disabled.

TCPSocket NUMBER
    TCP port number the daemon will listen on.
    Default: disabled.

TCPAddr STRING
    TCP address to bind to. By default clamd binds to INADDR_ANY.
    Default: disabled.

MaxConnectionQueueLength NUMBER
    Maximum length the queue of pending connections may grow to.
    Default: 15

MaxThreads NUMBER
    Maximal number of threads running at the same time.
    Default: 5.

ThreadTimeout NUMBER
    Stop thread-scanner after specified time (in seconds). Value of 0 disables the timeout.
    Default: 180

MaxDirectoryRecursion NUMBER
    Maximal depth a directories are scanned at.
    Default: disabled.

FollowDirectorySymlinks
    Follow a directory symlinks. You should have enabled directory recursion limit to avoid a potential problems.
    Default: disabled.

FollowFileSymlinks
    Follow regular file symlinks.
    Default: disabled.

SelfCheck NUMBER
    Do internal checks every NUMBER seconds.
    Default: 3600

VirusEvent COMMAND
    Execute the COMMAND when virus is found. In the command string %v and %f will be replaced by a virus name and an infected file name respectively. SECURITY WARNING: Make sure the virus event command cannot be exploited eg. by using some special file name when %f is in use. Always use a full path to the command. Never delete/move files with this directive !
    Default: disabled.

User STRING
    Drop priviledges to a selected user.
    Default: disabled.

AllowSupplementaryGroups
    When started by root and the User option is activated, it will initialize all the groups from /etc/group for which user is a member.
    Default: disabled.

Foreground
    Don't fork into background. Useful in debugging.
    Default: disabled.

Debug
    Enable debug messages from libclamav. You need to enable the Foreground option to see them.

StreamSaveToDisk
    When activated the input stream (see STREAM command) will be saved to disk before scanning - this allows scanning within archives.
    Default: disabled.

StreamMaxLength SIZE
    Close the connection when this limit is exceeded.
    Default: disabled.

ScanOLE2
    Enables scanning of Microsoft Office document macros.
    Default: enabled.

ScanMail
    Enable scanning of Mbox, Maildir and raw mail files.
    Default: disabled.

ScanArchive
    Enable archive scanning.
    Default: disabled.

ScanRAR
    The built-in RAR unpacker is disabled by default because the code leaks.
    Default: disabled.

ArchiveMaxFileSize SIZE
    Files in archives larger than this limit won't be scanned. Value of 0 disables the limit.
    Default: 10M

ArchiveMaxRecursion NUMBER
    Limit archive recursion level. Value of 0 disables the limit.
    Default: 5

ArchiveMaxFiles NUMBER
    Number of files to be scanned within archive. Value of 0 disables the limit.
    Default: 1000

ArchiveMaxCompressionRatio NUMBER
    Analyze compression ratio and mark potential archive bombs as viruses (0 disables the limit).
    Default: 200

ArchiveLimitMemoryUsage
    Use slower decompression algorithm which uses less memory. This option affects bzip2 decompressor only.
    Default: disabled

ArchiveBlockEncrypted
    Mark encrypted archives as viruses (Encrypted.Zip, Encrypted.RAR).
    Default: disabled

ClamukoScanOnLine
    Enable Clamuko - on-access scanner for Linux. Dazuko must be already running.
    Default: disabled.

ClamukoScanOnOpen
    Scan a file on open.
    Default: disabled.

ClamukoScanOnClose
    Scan a file on close.
    Default: disabled.

ClamukoScanOnExec
    Scan a file on execute.
    Default: disabled.

ClamukoIncludePath STRING
    Set the include paths (all files and directories in them will be scanned). You can have multiple ClamukoIncludePath options but each directory must be added with a seperate option.
    Default: disabled. Required.

ClamukoExcludePath
    Set the exclude paths. All subdirectories are also excluded.
    Default: disabled.

ClamukoMaxFileSize SIZE
    Don't scan files larger than SIZE.
    Default: 5M

ClamukoScanArchive
    Enable archive scanning. It uses ArchiveMax* limits.
    Default: disabled.

FILES

/etc/clamav.conf
/usr/local/etc/clamav.conf

AUTHOR

Tomasz Kojm <tkojm@clamav.net>

SEE ALSO

clamd(8), clamdscan(1), clamscan(1), freshclam(1), sigtool(1), clamav-milter(8)