Personal Firewall; Filtering Modes; Block All Traffic: Disconnect Network; Disable Filtering: Allow All Traffic - ESET SMART SECURITY User Manual

If an infected file is "locked" or in use by a system process, it will usually
only be deleted after it is released (normally after a system restart).
Deleting files in archives
In the Default cleaning mode, the entire archive will be deleted only
if it contains infected files and no clean files. In other words, archives
are not deleted if they also contain harmless clean files. However, use
caution when performing a Strict cleaning scan – with Strict cleaning
the archive will be deleted if it contains at least one infected file,
regardless of the status of other files in the archive.

4.2 Personal firewall

The Personal firewall controls all network traffic to and from the
system. This is accomplished by allowing or denying individual
network connections based on specified filtering rules. It provides
protection against attacks from remote computers and enables
blocking of some services. It also provides antivirus protection
for HTTP and POP3 protocols. This functionality represents a very
important element of computer security.
4.2.1

Filtering modes

Three filtering modes are available for the ESET Smart Security
Personal firewall. The behavior of the firewall changes based on
the selected mode. Filtering modes also influence the level of user
interaction required.
Filtering can be performed in one of the three modes:
▪ Automatic filtering mode is the default mode. It is suitable for
users who prefer easy and convenient use of the firewall with no
need to define rules. Automatic mode allows all outbound traffic
for the given system and blocks all new connections initiated from
the network side.
▪ Interactive filtering mode allows you to build a tailor‑made
configuration for your Personal firewall. When a communication is
detected and no rule exists which applies to that communication,
a dialog window reporting an unknown connection will be
displayed. The dialog window gives the option of allowing or
denying the communication, and the decision to allow or deny can
be remembered as a new rule for the Personal firewall. If the user
chooses to create a new rule at this time, all future connections of
this type will be allowed or blocked according to the rule.
▪ Policy‑based mode blocks all connections which are not defined by
a specific rule that allows them. This mode allows advanced users
to define rules that permit only desired and secure connections.
All other unspecified connections will be blocked by the Personal
firewall.
4.2.2

Block all traffic: disconnect network

The only option for definitively blocking all network traffic is to use the
Block all network traffic: disconnect network option. Any inbound
or outbound communication is blocked by the Personal firewall with
no warning displayed. Use this blocking option only if you suspect
critical security risks requiring disconnection of the system from the
network.
4.2.3

Disable filtering: allow all traffic

The Disable filtering option is the opposite configuration of the
above‑mentioned blocking of all communication. If selected, all of the
Personal firewall's filtering options are turned off and all incoming and
outgoing connections are permitted. Where the network is concerned,
it has the same effect as no firewall being present.
4.2.4

Configuring and using rules

Rules represent a set of conditions used to meaningfully test all
network connections and all actions assigned to these conditions.
In Personal firewall, you can define what action to take if a connection
defined by a rule is established.
To access the rule filtering setup, navigate to Advanced setup
(F5) > Personal firewall > Rules and zones. To display the current
configuration, click Setup... in the Zone and rule editor section (if the
Personal firewall is set to Automatic filtering mode, these settings
are not available).
In the Zone and rule setup window, an overview of either rules or
zones is displayed (based on the currently selected tab). The window
is divided into two sections. The upper section lists all rules in a
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