Tag

# Firewall

16 articles
Softwares 13 Feb 2026 ⏱ 11 min

pfSense: Setting up a firewall

Table of ContentsPresentationPrerequisitesInstalling pfSensepfSense post-installation configurationChange the assignment of network interfacesConfigure the IP address of an interfaceFirst connection to the pfSense web…

OPNsense 11 Feb 2026 ⏱ 10 min

OPNsense: Setting up a firewall

Table of ContentPresentationPrerequisitesInstalling OPNsenseBooting into LiveCD modeChange the IP address of a network interfaceConfiguring OPNsense after startupInstall OPNsense on the diskGetting Started…

Linux 22 Nov 2023 ⏱ 1 min

UFW: delete a rule

In this tutorial, I will explain how to easily delete a firewall rule managed by UFW. UFW is a command line interface…

GPO 09 Sep 2019 ⏱ 3 min

GPO: Managing Windows Firewall Rules

PresentationConfiguring Group Policy (GPO)Conclusion Presentation In this tutorial, we will see how to add rules to the Windows Firewall using Group Policy.…

Sophos 01 Apr 2019 ⏱ 1 min

Sophos XG : add a vlan

In this article, I'll explain how to declare a vlan on your Sophos XG firewall. Before you create it on the firewall,…

Sophos 15 Feb 2019 ⏱ 3 min

Sophos XG: secure emails

IntroductionPrerequisitesAdd a rule for incoming emailsConfigure email protectionGeneral SettingsSMTP deployment modeSMTP settingsMessaging journalSpam verification exceptionsAnti-malware protectionStrategiesSMTP antimalware controlSMTP antispam controlQuarantine report Introduction…