Node:Access Control Lists, Previous:Security Settings, Up:Configuring comsatd
Access control lists determine from which addresses comsatd
will receive mail notification messages.
The access control lists are introduced in configuration file using
keyword acl
. General format for an ACL rule is
acl action netlist
Here, action specifies the action to be taken when a request
arrives from one of the networks, listed in netlist. There are
two possible actions: allow
and deny
.
The netlist is a whitespace-separated list of network numbers. Each network number may be specified in one of the following forms:
any
0.0.0.0/0
.
Upon receiving a notification message, comsatd
compares its
source address against each ACL rule in the order of their appearance
in the configuration file. The first rule that matches the packet
determines whether the message will be processed or rejected. If
no matching rule was found, the default rule applies. Currently, default
rule is
acl allow any
If you don't need such behavior, specify the default rule explicitly.
For example, the common use would be:
acl allow 127.0.0.1 acl deny any
which makes comsatd
receive the notification messages from
localhost only.