Last Updated: 2025-03-27
Purpose
This document provides the required information needed for the communication with the HIAB and OUTSCAN through a firewall.
Introduction
The HIAB requires several firewall rules to allow for a smooth functionality in regard to updates and enrollments. Below is a list of rules that are used, however the Enrollment and Update rules are required and necessary. DNS host names are used for services where changes may occur without prior notification.
When using IP address only instead of hostnames, you need to add the scanning range to the firewall for HIAB to reach Outscan.
|
Service |
Destination |
Port |
Protocol |
Direction |
Description |
|
Remote Support |
osrss.outpost24.com |
22 |
TCP |
Outbound |
Remote Assistance |
|
Update |
repo.outpost24.com |
443 5000 |
TCP |
Outbound |
HIAB Updates |
|
Enrollment |
outscan.outpost24.com |
443 |
TCP |
Outbound |
Registering HIAB |
|
HIAB External/ OUTSCAN Internal |
outscan.outpost24.com |
443 |
TCP |
Outbound |
External Scanning from HIAB |
|
WEB |
<HIAB IP> |
443 |
TCP |
Inbound |
WEB GUI |
|
Scheduler to Scanner |
<HIAB IP> |
443 |
TCP |
Outbound |
Communication to scanner, depends on Polling enabled or not This is also necessary when enrolling a scanner through scheduler.
|
|
SMTP |
<SMTP Server> |
25 |
TCP |
Outbound |
For the HIAB to send emails |
|
DNS |
<DNS Server> |
53 |
TCP/UDP |
Outbound |
To resolve host names |
|
SSH |
<HIAB IP> |
22 |
TCP |
Inbound |
To allow remote access to the console |
|
Proxy |
<Proxy IP> |
<Proxy port> |
TCP |
Outbound |
To allow communications using a proxy server |
|
FTP |
<FTP IP> |
<FTP Port> |
TCP |
Outbound |
To perform backup and imports |
Outpost24 Network Scanning Range
Firewalls, IDSs and IPSs may interfere with the security scan if they have a reactive defense mechanism. In such case, we recommend to set up OUTSCAN (CIDR IP range 91.216.32.0/24, 80.254.228.0/22, 185.92.168.0/22, IPv6 range 2a13:5240::/29) as a trusted range.
Clarification
The scanning occurs from within the below range:
-
For IPv4:
-
91.216.32.1 to 91.216.32.254
-
80.254.228.0 to 80.254.231.255
-
185.92.168.1 to 185.92.171.255
-
-
For IPv6:
-
2a13:5240::0 to 2a13:5247:ffff:ffff:ffff:ffff:ffff:ffff
-
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