Ehsan Ghasisin

Ehsan Ghasisin

Ehsan Ghasisin works on computer and network security and the latest technology to design, implement, and maintain to help companies reduce risk and increase business activity. He has 15 years of experience and a computer and network engineering degree.

Cybersecurity Best Practices for Digital Transformation – A 3D illustration of a security shield on a microchip, symbolizing secure digital innovation.

Cybersecurity Best Practices for Digital Transformation

Ehsan Ghasisin

Ehsan Ghasisin 6 minute read

How To

Organizations embracing digital transformation aim to reduce operational expenses (OPEX), increase efficiency, and gain a competitive edge. However, rapid innovation expands the threat landscape, increasing...

Cisco ASA Firewall ACLs Complete Configuration Guide - Network Devices. Learn how to configure ACLs on Cisco ASA firewalls with this detailed guide.

Cisco ASA Firewall ACLs: Complete Configuration Guide

Ehsan Ghasisin

Ehsan Ghasisin 8 minute read

How To | Cisco | Firewall

Cisco Adaptive Security Appliance (ASA) firewalls protect your network through powerful Access Control Lists (ACLs). These security rules filter network traffic by permitting or denying packets based on...

Cisco ASA Firewall Configuration Guide – Learn how to configure Cisco ASA Firewall step-by-step. NetworkDevices logo and firewall image.

How to Configure Cisco ASA Firewall: Step-by-Step Guide

Ehsan Ghasisin

Ehsan Ghasisin 8 minute read

How To | Cisco | Firewall

Configuring a Cisco ASA firewall is an essential step in securing your network against threats. This guide walks you through the fundamental setup procedures, including IP address assignment, interface security...

Cisco Firepower 1000 Series and Palo Alto PA-410 firewall devices featured in a ‘Top 5 SMB Firewalls for 2025’ expert guide from networkdevices.

Top 5 SMB Firewalls for 2025 | Expert Guide

Ehsan Ghasisin

Ehsan Ghasisin 9 minute read

Buying Guide | Expert Picks | Cisco | Fortinet | Firewall

Small and medium-sized businesses (SMBs) are the backbone of the global economy, but they are increasingly becoming prime targets for cybercriminals. A firewall is your first line of defense against...

Palo Alto Firewall Configuration Guide and Lab Setup (2024), featuring the Palo Alto PA-850 device and Network Devices branding.

Palo Alto Firewall Configuration Guide & Lab Setup (2025)

Ehsan Ghasisin

Ehsan Ghasisin 15 minute read

How To | Firewall

Palo Alto Networks firewalls are industry-leading next-generation firewalls (NGFWs) designed to provide network security, threat prevention, and application-aware filtering in enterprise and small...

Banner image showing a Palo Alto Networks firewall (PA-850) alongside the article title “Part II: Palo Alto Firewall Setup – Comprehensive PAN-OS Guide.

Palo Alto Firewall Setup: Comprehensive PAN-OS Guide

Ehsan Ghasisin

Ehsan Ghasisin 8 minute read

How To | Firewall

Welcome to your Palo Alto firewall initial configuration (PAN-OS) guide. If you’re looking to configure a Palo Alto firewall for the first time, you’ve come to the right place. In the previous...

Palo Alto Networks Complete Architecture and Features Guide cover image featuring the PA-850 firewall device, highlighting advanced network security solutions.

Palo Alto Firewalls: Complete Architecture & Features Guide

Ehsan Ghasisin

Ehsan Ghasisin 11 minute read

How To | Software/License/Protocol | Firewall

With cyber threats evolving unprecedentedly, traditional firewalls can no longer secure modern enterprise networks. Next-generation firewalls (NGFWs) have become the backbone of advanced network...

AI’s Role in Enhancing Network Security in 2024

AI’s Role in Enhancing Network Security in 2024

Ehsan Ghasisin

Ehsan Ghasisin 8 minute read

How To | News

As the digital landscape evolves, cybersecurity threats have grown more complex and challenging. By 2025, cybercrime is projected to cost businesses over $10 trillion annually, driven by...

Data Center Micro-Segmentation: A Complete Guide - A visual featuring a padlock symbolizing security, placed on top of server stacks, emphasizing the concept of secure and segmented data centers for enhanced network protection.

Data Center Micro-segmentation: A Complete Guide

Ehsan Ghasisin

Ehsan Ghasisin 9 minute read

How To

As cyber threats evolve, traditional security models struggle to protect local data centers. Data center micro-segmentation enhances security by controlling traffic between workloads and preventing...

How to Configure SonicWall High Availability & IPSec VPN

How to Configure SonicWall High Availability & IPSec VPN

Ehsan Ghasisin

Ehsan Ghasisin 11 minute read

How To | Firewall

Secure connectivity is essential for business operations in today's digital landscape. High availability (HA) ensures systems remain functional during failures using redundancy and failover mechanisms....

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