As such, the allow_certmaster() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().

CIFS is a communication and discovery protocol collection that requires multiple ports and multiple protocols to be available, including:

As such, the allow_cifs() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().

As such, the allow_dns_queries() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().

As such, the allow_dns_transfers() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().

The allow_ftp() function therefor shortcuts one call to allow_standard_protocol() for the incoming connection over port 21 using the tcp protocol. Other rules inserted in the preferred chain include the necessary rule for opening up the data channel (the server communicates such back to the client from source port 20 over the udp protocol), and the final data transfer channel, which is determined in real-time and without prior specification. As such, the ipt_conntrack_ftp module needs to be loaded into the kernel.

As such, the allow_func() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().

As such, the allow_git() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().

As such, the allow_http() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().

As such, the allow_https() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().

As such, the allow_icmp() function allows only three parameters, all of which are optional:

As such, the allow_imap() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().

As such, the allow_imaps() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().

As such, the allow_ipp() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().

As such, the allow_kerberos() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().

As such, the allow_ldap() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().

As such, the allow_ldaps() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().

As such, the allow_lpd() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().

As such, the allow_microsoft_ds() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().

As such, the allow_mysql() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().

Additionally, it places the following calls to the following non-standard functions, supplying to those functions the very same arguments that were passed to the allow_nfs() function call:

Each of these functions (except for allow_rpcbind) does some kind of exotic thing, so please make sure you read the details on each (except for allow_rpcbind) before using the allow_nfs() function.

As such, the allow_nrpe() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().

As such, the allow_ntp() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().

In order to determine the port and protocol, the allow_openvpn() function attempts to get those settings from /etc/openvpn/server.conf, using the following commands:

port=`grep ^port /etc/openvpn/server.conf | awk '{print $2}'`
proto=`grep ^proto /etc/openvpn/server.conf | awk '{print $2}'`

If the function can discover the port and protocol, these are used in a call to allow_standard_protocol() as the first two parameters.

Should the function be unable to determine the port and protocol from /etc/openvpn/server.conf, then it ceases (breaks), and you should return to using allow_standard_protocol().

That said, the allow_openvpn() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().

As such, the allow_pop() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().

As such, the allow_pops() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().

As such, the allow_postgres() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().

As such, the allow_puppet() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().

As such, the allow_rpcbind() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().

Should the allow_rpclockd() be unable to discover the tcp and udp ports for the NFS lock manager, then this function does not insert any new rules to iptables.

That said, the allow_rpclockd() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().

Should the allow_rpcmountd() be unable to discover the port number for the NFS mount daemon, then this function does not insert any new rules to iptables.

That said, the allow_rpcmountd() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().

Should the allow_rpcrquotad() be unable to discover the port number for the NFS mount daemon, then this function does not insert any new rules to iptables.

That said, the allow_rpcrquotad() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().

As such, the allow_rsync() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().

As such, the allow_smtp() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().

As such, the allow_snmp() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().

As such, the allow_snmptrap() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().

As such, the allow_git() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().

As such, the allow_git() function allows only three parameters, all of which are optional:

For more information about the exact workings of each parameter, please see the documentation on allow_standard_protocol().