clamd.conf - Configuration file for Clam AntiVirus Daemon
DESCRIPTION
clamd.conf configures the Clam AntiVirus daemon, clamd(8) .
FILE FORMAT
The file consists of comments and options with arguments. Each line that starts with a hash (#) symbol is a comment. Options and arguments are case sensitive and of the form Option Argument. The (possibly optional) arguments are are of the following types:
STRING
String without blank characters.
SIZE
Size in bytes. You can use 'M' or 'm' modifiers for megabytes and 'K' or 'k' for kilobytes.
NUMBER
Unsigned integer.
DIRECTIVES
When an 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 file multiple times.
Default: disabled
LogFileMaxSize SIZE
Limit the 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
LogFacility
Specify the type of syslog messages - please refer to 'man syslog' for facility names.
Default: LOG_LOCAL6
LogVerbose
Enable verbose logging.
Default: disabled
PidFile STRING
Save the process identifier of a listening daemon (main thread) to a specified file.
Default: disabled
TemporaryDirectory STRING
Optional path to the global temporary directory.
Default: system specific (usually /tmp or /var/tmp).
DatabaseDirectory STRING
Path to a directory containing database files.
Default: /var/lib/clamav/
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 socket 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: 10
ReadTimeout NUMBER
Waiting for data from a client socket will timeout after this time (seconds).
Default: 120
IdleTimeout NUMBER
Waiting for a new job will timeout after this time (seconds).
Default: 30
MaxDirectoryRecursion NUMBER
Maximal depth directories are scanned at.
Default: 15
FollowDirectorySymlinks
Follow directory symlinks.
Default: disabled
FollowFileSymlinks
Follow regular file symlinks.
Default: disabled
SelfCheck NUMBER
Do internal sanity checks every NUMBER seconds.
Default: 1800
VirusEvent COMMAND
Execute the COMMAND when virus is found. In the command string %v will be replaced by a virus name.
Default: disabled
ExitOnOOM
Stop deamon when libclamav reports out of memory condition.
Default: disabled
User STRING
Run as selected user.
Default: disabled
AllowSupplementaryGroups
Initialize supplementary group access (clamd must be started by root).
Default: disabled
Foreground
Don't fork into background.
Default: disabled
Debug
Enable debug messages from libclamav.
LeaveTemporaryFiles
Do not remove temporary files (for debug purposes).
Default: disabled
StreamMaxLength SIZE
Clamd uses FTP-like protocol to receive data from remote clients. If you are using clamav-milter to balance load between remote clamd daemons on firewall servers you may need to tune the Stream* options. This option allows you to specify the maximal limit for data transfered to remote daemon when scanning a single file. It should match your MTA's limit for a maximal attachment size.
Default: 10M
StreamMinPort NUMBER
Limit data port range.
Default: 1024
StreamMaxPort NUMBER
Limit data port range.
Default: 2048
DisableDefaultScanOptions
By default clamd uses scan options recommended by libclamav. This option disables recommended options and allows you to enable selected options. DO NOT ENABLE IT unless you know what you are doing.
Default: disabled
ScanPE
PE stands for Portable Executable - it's an executable file format used in all 32-bit versions of Windows operating systems. This option allows ClamAV to perform a deeper analysis of executable files and it's also required for decompression of popular executable packers such as UPX.
Default: enabled
DetectBrokenExecutables
With this option clamd will try to detect broken executables and mark them as Broken.Executable.
Default: disabled
ScanOLE2
Enables scanning of Microsoft Office document macros.
Default: enabled
ScanHTML
Enables HTML detection and normalisation.
Default: enabled
ScanMail
Enable scanning of mail files.
Default: enabled
MailFollowURLs
If an email contains URLs ClamAV can download and scan them. WARNING: This option may open your system to a DoS attack. Never use it on loaded servers. Default: disabled
ScanArchive
Enable archive scanning.
Default: enabled
ScanRAR
Enable scanning of RAR archives. Due to license issues libclamav does not support RAR 3.0 archives (only the old 2.0 format is supported). Because some users report stability problems with unrarlib it's disabled by default and must be enabled in the config file.
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: 8
ArchiveMaxFiles NUMBER
Number of files to be scanned within archive. Value of 0 disables the limit.
Default: 1000
ArchiveMaxCompressionRatio NUMBER
Analyze compression ratio of every file in an archive and mark potential archive bombs as viruses (0 disables the limit).
Default: 250
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
ArchiveBlockMax
Mark archives as viruses (e.g RAR.ExceededFileSize, Zip.ExceededFilesLimit) if ArchiveMaxFiles, ArchiveMaxFileSize, or ArchiveMaxRecursion limit is reached.
Default: disabled
ClamukoScanOnAccess
Enable Clamuko. Dazuko (/dev/dazuko) must be configured and running.
Default: disabled
ClamukoScanOnOpen
Scan files on open.
Default: disabled
ClamukoScanOnClose
Scan files on close.
Default: disabled.
ClamukoScanOnExec
Scan files on execute.
Default: disabled
ClamukoIncludePath STRING
Set the include paths (all files and directories in them will be scanned). You can have multiple ClamukoIncludePath directives but each directory must be added in a seperate line).
Default: disabled
ClamukoExcludePath
Set the exclude paths. All subdirectories will also be excluded.
Default: disabled
ClamukoMaxFileSize SIZE
Don't scan files larger than SIZE.
Default: 5M
ClamukoScanArchive
Enable archive scanning. It uses ArchiveMax* limits.
Default: disabled
