Configuring AAA Authentication on Cisco ASA Firewall

What is AAA AAA stands for Authentication, Authorization, and Accounting. AAA is a mechanism that is used to tell the firewall appliance who the user is (Authentication), what actions the user is authorized to perform on the network (Authorization), and what the user did on the network after connecting (Accounting). In this post we will […]

DNS Security Protection Parameters

DNS in my opinion is the cornerstone of Internet communication. Anything from web browsing, email communication, file transfer, multimedia access etc is based on DNS. After the recent discovery of Dan Kaminsky’s DNS major security issue, protection of DNS service is of critical importance. Fortunately, the Cisco ASA firewall provides several dns security features that […]

Adding more Interfaces to Cisco ASA Firewalls with 4GE SSM

Implementing security in layers is the recommended network security design for protecting information assets. This approach is achieved by segmenting your network into various security zones with an ASA Firewall and applying access policies between them according to their security levels. By default Cisco ASA firewalls come with at least four 10/100/1000 network interfaces which […]

License Upgrade on Cisco ASA 5505 (or 5500)

There are several license options for the Cisco ASA 5505 firewall as shown below: Description Performance Part Number Cisco ASA 5505 10 User Firewall Edition Bundle Includes: 10 users, 8-port Fast Ethernet switch with 2 Power over Ethernet ports, 10 IPsec VPN peers, 2 SSL VPN peers, Triple Data Encryption Standard/Advanced Encryption Standard (3DES/AES) license […]

Cisco ASA Appliance – Five Functionalities in One Box

The Cisco Adaptive Security Appliance (ASA) device is not just a hardware Firewall as many people think. Of course the Firewall mechanism is the main functionality of the device, but the extension hardware modules that you can add on, can transform the appliance into content security, intrusion prevention, ssl/ipsec device etc.  Firewall  This is the […]

Connecting to the ASA Firewall with Telnet and SSH

The Cisco ASA firewall appliance provides both graphical and command line methods for connecting to the device for management. With the graphical method, the administrator can use a web browser (https) for managing the firewall. This method necessitates that the ASDM software (Adaptive Security Device Manager) is installed on the flash memory of the firewall. […]