Update clamav_control.md

Author: wchen-r7

documentation/modules/auxiliary/scanner/misc/clamav_control.md

@@ -12,6 +12,62 @@ To install ClamAV from Ubuntu:
 ```
 $ sudo apt-get install clamav clamav-daemon
 $ sudo freshclam
+```
+
+You might also need to add the following to /etc/clamav/clamd.conf:
+
+```
+# TCP port address.
+# Default: no
+TCPSocket 3310
+
+# TCP address.
+# By default we bind to INADDR_ANY, probably not wise.
+# Enable the following to provide some degree of protection
+# from the outside world.
+# Default: no
+TCPAddr 0.0.0.0
+
+# Maximum length the queue of pending connections may grow to.
+# Default: 15
+MaxConnectionQueueLength 30
+
+# 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 options below.
+
+# Close the connection when the data size limit is exceeded.
+# The value should match your MTA's limit for a maximum attachment size.
+# Default: 10M
+StreamMaxLength 55M
+
+# Limit port range.
+# Default: 1024
+#StreamMinPort 30000
+# Default: 2048
+#StreamMaxPort 32000
+
+# Maximum number of threads running at the same time.
+# Default: 10
+MaxThreads 50
+
+# Waiting for data from a client socket will timeout after this time (seconds).
+# Value of 0 disables the timeout.
+# Default: 120
+ReadTimeout 300
+
+# Waiting for a new job will timeout after this time (seconds).
+# Default: 30
+#IdleTimeout 60
+
+# Maximum depth directories are scanned at.
+# Default: 15
+#MaxDirectoryRecursion 20
+```
+
+And finally, start the service:
+
+```
 $ sudo /etc/init.d/clamav-daemon start
 ```