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Hi Beloved Zenarmor Community,

Websites and marketers monitor our activities to gather data for targeted advertising and several other objectives. To address this issue, there are techniques to inhibit online monitoring and advertisements in your web browser to protect your privacy and enhance your surfing experience.

In this tutorial, we explain why you might want to block ads on your browser and how easy it is to block ads with Zenarmor for all devices on your network.

Best Regards,
Zenarmor Team

Hi Beloved OPNsense Community,

A Web Application Firewall (WAF) is a security mechanism positioned before a web application to inspect, filter, and stop harmful traffic. It serves as a mediator between the internet and your website or web application, scrutinizing HTTP requests and answers for any risks.

OPNsense provides NAXSI web application firewall (WAF) to protect web servers against cyber attacks. NAXSI WAF can be easily enabled by installing the NGINX web server plugin os-nginx on your OPNsense firewall.

This tutorial explores the Naxsi WAF, its operational mechanisms, and its capabilities, and provides guidance on configuring the WAF on the OPNsense firewall with the NGINX Naxsi module. Furthermore, we illustrate the process of establishing a whitelist or blacklist using the IP-based ACL functionality of the Nginx server.

Best Regards,

Zenarmor Team

Hi Beloved OPNsense Community,

DNS is an essential protocol for Internet communication. However, the security of this critical protocol might be significantly enhanced. Encryption is absent, and although authentication systems are available, they face criticism and have not gained significant use. The DNSCrypt protocol was explicitly developed to enhance DNS security. DNSCrypt is a protocol that encrypts, authenticates, and optionally anonymizes communications between a DNS client and a DNS resolver.

This tutorial examines the installation and configuration of the DNSCrypt-proxy plugin on the OPNsense firewall. Furthermore, we give the list of public DNScrypt servers and explain the features of DNScrypt service.

Bests,

Zenarmor Team

Hey, Zenarmor fam!

Big news—Zenarmor is now SOC 2 compliant!  What does this mean? It's all about making sure your data is safe and secure while we continue delivering the network protection you trust.

This is just the beginning as we gear up for some exciting things, including our upcoming SASE product with the Plug and Secure Anywhere approach.

https://www.zenarmor.com/announcements#zenarmor-achieves-soc2-certification

Dear Beloved Zenarmor Community,

As of release 24.7.3, OPNsense offers Snapshots, also known as Boot Environments, feature. Boot Environments are fundamental components of the FreeBSD operating system. Sheridan Computers, integrated this capability into OPNsense web UI. Snapshots provides a user-friendly and efficient method for users to build, maintain, and transition between boot environments, hence improving system administration and recovery capabilities.

In this tutorial, we explain the main advantages of the snapshots feature and how you can manage snapshots on the OPNsense firewall.

Best Regards,

Zenarmor Team

OPNsense 25.1 is slated for release in January 2025, bringing significant changes like FreeBSD 14.2.
To avoid potential issues, please delay updating OPNsense until Zenarmor confirms compatibility.
We'll keep you posted with updates.
Best Regards
Zenarmor Team

Dear Beloved Zenarmor Community,

Unbound DNS is a validating, recursive, and caching DNS resolver designed for high performance and security. Unbound DNS is open-source software, under a BSD license, created by NLnet Labs, extensively used in various platforms to resolve domain names into IP addresses. System administrators, Internet service providers, and users concerned about privacy often use Unbound. It is compatible with OPNsense, pfSense, FreeBSD, Linux, macOS, and other Unix-like operating systems.

In this tutorial, we explain Unbound DNS's main features and how to configure it on your OPNsense firewall.

Best Regards,

Zenarmor Team

Dear Beloved Zenarmor Community,

The Dynamic Host Configuration Protocol (DHCP) is a critical network administration protocol that facilitates the automatic assignment of IP addresses and other network configuration parameters to devices within a network. In current networking, the number of connected devices is expanding at a rapid pace, and DHCP is essential for facilitating network administration.

OPNsense firewall offers DHCP service for IPv4 and IPv6 clients, referred to as ISC DHCPv4 and ISC DHCPv6, respectively. By default, OPNsense employs the extensively used ISC DHCP server. However, as of version 24.1, KEA is now available as an alternative due to the ISC DHCP's end-of-life. The long-term ISC will be removed from OPNsense in the future.

In this guide, we explain how you can set up ISC DHCP and KEA DHCP servers on the OPNsense firewall.

Best Regards,

Zenarmor Team

[Details]

Zenarmor's Home Subscription is now 20% OFF for Black Friday!

Details

• Applicable to new Home Subscription purchases
• Annual plans only
• Use promo code ZENARMOR24U when signing up
• Available till December 06, 2024

https://hubs.ly/Q02ZQcpq0

[Details]

Hello Beloved Zenarmor users,

We want to inform you about an upcoming scheduled maintenance for Zenconsole, during which the system will be temporarily unavailable.
Details:
Date and Time: Wednesday, October 23, 2024 from 9:00 pm to 10:pm PT (00:00 am - 01:00 am ET, 04:00 am - 05:00 am GMT).
Duration: 1 hour
Affected Service: Zenconsole Cloud Management Portal
Reason for Maintenance: Zenconsole v1.18 major upgrade

We appreciate your understanding and patience during this maintenance window and apologize for any inconvenience caused.
Stay tuned for more updates on the exciting new features coming with Zenconsole v1.18!

Zenarmor Team

Hello Beloved Zenarmor users,

Zenarmor CEO, Murat Balaban, has written a blog post about how input from home users is influencing upcoming developments.

Read the full post here: https://www.zenarmor.com/blog#your-voice-matters-what-you-wanted-and-what-is-in-the-works

[WireGuard interface issue]

Attention Zenarmor Users!

OPNsense 24.7 users may be experiencing the following issues. The Zenarmor team is currently working on resolving them, and they will be fixed with the upcoming release, 1.17.6. This release will be shipped at the beginning of next week. We advise users not to upgrade their OPNsense platform to the 24.7 version until we make our next announcement for safe operation.

Thank you for your understanding and patience.

1. WireGuard interface issue. Zenarmor engine can not report and apply policies to the WireGuard interface. There is a workaround solution for this issue by OPNsense. Please check the following forum link
https://forum.opnsense.org/index.php?topic=41762.msg205647#msg205647

2. User Enrichment and HA features have an issue with OPNsense 24.7

Best Regards
Zenarmor Team

Dear Zenarmor Users,

Some of our users have reported compatibility issues with filtering WireGuard VPN traffic on OPNsense 24.7. We are currently investigating the issue. If you are using Zenarmor to protect WireGuard VPN interfaces (kernel mode), we advise you not to upgrade your OPNsense platform to the latest version until we make our next announcement for safe operation.

Best Regards
Zenarmor Team

Dear Zenarmor Users,

The OPNsense upgrade process for major versions does not involve downloading third-party repositories or packages, such as Zenarmor. Instead, it updates the self-contained OPNsense ecosystem to prevent overlap errors and dependency mismatches between OPNsense and third-party repositories. 

Consequently, Zenarmor users who upgrade their OPNsense platforms to the latest version, 24.7, need to install Zenarmor packages that are compatible with the new operating system, FreeBSD 14.1, by running the update. 

In simpler terms, Zenarmor users should complete Zenarmor updates by immediately installing updates after the major OPNsense 24.7 upgrade is finished.

If you encounter any issues during the OPNsense 24.7 upgrade, feel free to contact the Zenarmor team for assistance.

Best Regards
Zenarmor Team

Dear Beloved Zenarmor Users,
A SYN flood interrupts a web service using a TCP/IP handshake vulnerability. In the world of cyber threats, the TCP SYN Flood stands out as a particularly malicious type of denial-of-service (DoS) attack. By manipulating the protocols that govern internet communication, attackers can flood servers, rendering them unavailable to genuine queries.
This article covers the SYN flood attack. Explore the complexities of TCP SYN Flood, a common denial-of-service attack. Learn about its processes, the hazards it may bring to computer networks, and the tactics used to combat such attacks.
https://www.zenarmor.com/docs/network-security-tutorials/what-is-syn-flood-attack
Best Regards
Zenarmor Team

Dear Beloved Zenarmor Users,

This guide outlines the fundamental best practices that administrators must follow in order to optimize and effectively implement the Zenarmor® configuration settings. These procedures encompass critical components, including ease of policy configuration, device examination, and security rule enforcement. Furthermore, the article provides additional information regarding the protection of IoT devices, virtual environment considerations, and efficient reporting strategies.

By following the outlined best practices, you can ensure a secure, efficient, and reliable deployment of Zenarmor in your network.
https://www.zenarmor.com/docs/guides/best-practices-for-zenarmor-deployment

Best Regards
Zenarmor Team

Dear Zenarmor Users,

Zenarmor internal CA certificate must be installed on client devices as a trusted certificate to inspect TLS traffic or view the Zenarmor block notification page for TLS traffic.

In this guide, we will provide the steps for adding the Zenarmor CA certificate to the different operating systems and applications.

https://www.zenarmor.com/docs/guides/adding-zenarmor-certificate-to-a-trust-store

Best Regards
Zenarmor Team

Dear Zenarmor Users,

We have identified an issue that prevents Zenarmor Elasticsearch database installation on the latest OPNsense version 24.1.7. We strongly advise holding off on upgrading to this version while our team works diligently to resolve the matter. We are committed to providing a swift solution and will update you as soon as the fix is available.

Thank you for your understanding and cooperation.
Best Regards

Zenarmor Team

Dear Zenarmor Users,

We have identified an issue with MongoDB on the latest OPNsense version 24.1.6 that affects its compatibility with Zenarmor. We strongly advise holding off on upgrading to this version while our team works diligently to resolve the matter. We are committed to providing a swift solution and will update you as soon as the fix is available.

Thank you for your understanding and cooperation.
Best Regards

Zenarmor Team

Dear Beloved Zenarmor Users,

Explore how OPNsense and Zenarmor work together to provide businesses with stronger network security and management.

This webinar will cover the benefits of combining OPNsense's firewall capabilities with Zenarmor's security features for enterprise networks.

Learn from experts about enhancing your network's defense and efficiency without the complex language or pushy sales pitches.

Join us to gain insights into simplifying and strengthening your cybersecurity strategy.

March 27, 2024 15.00 pm (CET)

https://streamyard.com/watch/7JnW45azTm57

Zenarmor Team