Navigating and Managing Sophos Firewall Sophos Firewall Version: 1.0v2 Sophos Firewall FW1505: Navigating and Managing Sophos Firewall June 2022 Version: 1.0v2 © 2022 Sophos Limited. All rights reserved. No part of this document may be used or reproduced in any form or by any means without the prior written consent of Sophos. Sophos and the Sophos logo are registered trademarks of Sophos Limited. Other names, logos and marks mentioned in this document may be the trademarks or registered trademarks of Sophos Limited or their respective owners. While reasonable care has been taken in the preparation of this document, Sophos makes no warranties, conditions or representations (whether express or implied) as to its completeness or accuracy. This document is subject to change at any time without notice. Sophos Limited is a company registered in England number 2096520, whose registered office is at The Pentagon, Abingdon Science Park, Abingdon, Oxfordshire, OX14 3YP. Navigating and Managing Sophos Firewall v1.0 - 1 Navigating and Managing Sophos Firewall When you have completed this chapter, you will be familiar with the Sophos Firewall WebAdmin and understand how it uses objects as the building blocks for the configuration of rules and policies. RECOMMENDED KNOWLEDGE AND EXPERIENCE ✓ Sophos Firewall configuration using the Initial Setup Wizard DURATION 11 minutes When you have completed this chapter, you will be familiar with the Sophos Firewall WebAdmin and understand how it uses objects as the building blocks for the configuration of rules and policies. Navigating and Managing Sophos Firewall v1.0 - 2 WebAdmin: Control Center When you first login to the WebAdmin you are presented with the Control Center, which provides a live view of what is happening on the Sophos Firewall, and allows you to quickly identify anything that requires your attention. The Control Center is broken down into six main areas. • System, which shows the health of the firewall and services. Each item can be clicked to get more detailed information. • Traffic insight, which provides an at a glance overview of what is happening on the network and the traffic being processed • User and device insight, for the status of users and devices being protected by Sophos Firewall. This section includes the User Threat quotient, which is a risk assessment of users based on their behaviour. • Active firewall rules displays the usage of firewall rules by type. Below the graph you can see the state of firewall rules over the last 24 hours. Clicking these will take you to the firewall rules filtering for the selected type of rule. • Reports provides access to commonly used reports. These can either be opened by clicking on the name of the report or downloaded using the icon to the right of each. It shows when the report was last updated and the size of the file. • And Messages, which displays alerts or information for the administrator, including security warnings and new firmware updates. Messages are clickable to access the relevant configuration. Navigating and Managing Sophos Firewall v1.0 - 3 WebAdmin: Main Menu Information on current activity, reports and diagnostic tools Down the left-hand side is the main menu for navigating the Sophos Firewall. This is divided into four sections: MONITOR & ANALYZE, provides access to information on the current activity on the Sophos Firewall, and reports and diagnostic tools. Navigating and Managing Sophos Firewall v1.0 - 4 WebAdmin: Main Menu Configure rules policies and settings related to protection features PROTECT, for configuring the rules, policies and settings related to protection features. Navigating and Managing Sophos Firewall v1.0 - 5 WebAdmin: Main Menu Setup connectivity, routing, authentication and global settings CONFIGURE, where you setup connectivity, routing, authentication and global settings. Navigating and Managing Sophos Firewall v1.0 - 6 WebAdmin: Main Menu Device access settings, objects and profiles that are used in rules and policies SYSTEM, which houses the device access settings, as well as objects and profiles that are used within rules and policies. Navigating and Managing Sophos Firewall v1.0 - 7 WebAdmin: Tabbed Navigation Each section that is accessible from the main menu is further broken down into tabs for accessing each area of configuration. On some screens additional, less frequently used tabs, can be accessed using the ellipses on the right-hand side of the tabs. Navigating and Managing Sophos Firewall v1.0 - 8 WebAdmin: Advanced Settings Display additional Settings for reports In the Reports section there is an additional, Show Reports settings option, that allows you to access some of the less often used options. When the settings are accessed, the screen will flip to the additional options. You can identify when you are on this screen because the title bar at the top of the page will be yellow. Navigating and Managing Sophos Firewall v1.0 - 9 WebAdmin: Admin Drop-Down Menu Found in the top-right is the admin menu. Here you can reboot, shutdown, lock and logout of the Sophos Firewall. This menu also provides links to the support website, the Sophos Firewall licensing page, and web-based access to the console. Navigating and Managing Sophos Firewall v1.0 - 10 WebAdmin: Help Found on every screen on the Sophos firewall is a context sensitive link to the online help file. When clicked, it opens a separate window. This online version of the help is fully interactive, and can be browsed by selecting the various menu items in the left side menu. It can also be searched using keywords. When a search result is selected it will load the appropriate section within the help file. [Additional Information] https://docs.sophos.com/nsg/sophos-firewall/18.5/Help/en-us/webhelp/onlinehelp/index.html Navigating and Managing Sophos Firewall v1.0 - 11 WebAdmin: Log Viewer Next to the help link is the Log viewer, which opens in a new window to provide access to all log files. In the ‘Log viewer’ you can filter the logs and perform context sensitive actions. Other chapters in the course will explore this in more detail. Navigating and Managing Sophos Firewall v1.0 - 12 How-to Guides View How-to videos Clicking the How-to guides link in the Web Admin takes you to the Sophos Community page. This provides a link to a library of videos that demonstrate how to perform common tasks on Sophos Firewall. Navigating and Managing Sophos Firewall v1.0 - 13 Objects Objects are the building blocks for rules and policies Define hosts, networks, services, groups and profiles Can be created inline when configuring rules and policies The Sophos Firewall uses objects as the building blocks for the configuration of rules and policies. By defining reusable objects once for things such as hosts, services and networks, it can speed up configuration, and simplify future changes by having a single place to make a change. Objects can be created and edited ahead of time, but they can also be created inline when configuring protection features. This means that you do not have to navigate away from what you are configuring to create an object, because you will have the option to create it where you need it. There are two categories of object – hosts and services; and profiles. These can be found in the SYSTEM section on the Sophos Firewall. Navigating and Managing Sophos Firewall v1.0 - 14 Hosts IP MAC FQDN There are three types of host object on the Sophos Firewall: IP, MAC and FQDN There are three types of host object on the Sophos Firewall: IP, MAC and FQDN. Navigating and Managing Sophos Firewall v1.0 - 15 Hosts IP MAC FQDN IP version and host type cannot be changed after creation IP host groups can be used to group IP host objects for IP addresses, networks and IP ranges, but not IP lists IP host objects can represent a single IP address, a subject, a range of IP addresses or a list of IP address, for either IPv4 or IPv6. The object has a name and then must be configured by IP version (IPv4 or IPv6) and a type. Note that the IP version and type cannot be modified after the object has been created. You then provide the data for the type of object you selected. Note that IP address lists are comma separated. IP host groups can be used to group IP host objects for IP addresses, networks and IP ranges, but not IP lists. Navigating and Managing Sophos Firewall v1.0 - 16 Hosts IP Type cannot be changed after it has been created MAC FQDN Lists are comma separated MAC host objects can be created for individual MAC addresses or MAC address lists. The MAC host object has a name and then must be configured for a specific type, either MAC address or MAC list. This cannot be changed once the object has been saved. MAC address lists are comma separated. Navigating and Managing Sophos Firewall v1.0 - 17 Hosts IP MAC FQDN Supports wildcard prefix to resolve subdomains Can be grouped with FQDN host groups FQDN hosts are used to define fully qualified domain names. FQDN host objects can include a wildcard prefix to resolve sub-domains, for example, *.sophos.com. FQDN host groups allow you to create a collection of FQDN host objects to further simplify the using of objects in rules and policies. Navigating and Managing Sophos Firewall v1.0 - 18 Services Service based on TCP and UDP ports Service based on IP protocol numbers Service based on ICMP types & codes Service objects can be created for: • TCP and UDP based on protocol, source and destination port, • IP based on protocol number, • ICMP and ICMPv6 based on the ICMP type and code. Each service object is for a single type, and can contain one or more definitions. You can also create groups of service objects. Navigating and Managing Sophos Firewall v1.0 - 19 Country Groups Sophos Firewall maintains a geo IP database that maps IP addresses to countries, and this is automatically updated with the pattern definitions. There are several predefined country groups that ship with Sophos Firewall, which can be edited. You can also create custom groups of countries. Navigating and Managing Sophos Firewall v1.0 - 20 Profiles Schedule Access time • Defines a period of time • Recurring or one-off • Allow or deny action for a schedule Surfing quota Network traffic quota • Browsing time restrictions • Recurring or one-off • Bandwidth restrictions • Separate upload/download or combined Decryption IPsec • Settings for TLS decryption • IKE parameters for establishing tunnels between two firewalls Device access • Roles for administrators Profiles are a collection of settings that can be defined and used when configuring protection features. There are profiles for: • Schedule, which defines a period, either recurring or one-off, • Access time, that defines an allow or deny action for a schedule, • Surfing quota, which defines either recurring or one-off restrictions for browsing time, • Network traffic quota, for upload and download bandwidth quota restrictions, • Decryption, for controlling the decryption of TLS traffic, • IPsec, to specify the IKE (Internet Key Exchange) parameters for establishing tunnels between two firewalls, • And Device access, which defines access roles for admins logging into the WebAdmin. Navigating and Managing Sophos Firewall v1.0 - 21 Chapter Review The main menu is the primary navigation tool and is divided into four sections. Pages are further broken down into tabs for accessing each area of configuration Every page provides a link to context sensitive help Two types of object – hosts and services, and profiles – are used as the building blocks for the configuration of rules and policies Here are the three main things you learned in this chapter. The main menu is the primary navigation tool and is divided into four sections. Pages are further broken down into tabs for accessing each area of configuration. Every page provides a link to context sensitive help. The Sophos Firewall uses two types of object – hosts and services, and profiles - as the building blocks for the configuration of rules and policies. Navigating and Managing Sophos Firewall v1.0 - 26 Navigating and Managing Sophos Firewall v1.0 - 27