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GNS3 Network Simulator

Found something really cool today GNS3 is a graphical network simulator where you can set-up complex virtual networks and run Cisco and Juniper routers or switches. The best is that you can also...

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Cisco ASA Virtual Context Mode

A single Cisco ASA or a cluster of two ASAs can be partition into multiple virtual firewalls known as security contexts. Each context has it’s own independent firewall, with its own security policy,...

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Continuous Integration and Delivery for Networking with Cumulus Linux

Continuous Integration – Continuous Delivery (CICD) is becoming more and more popular for network automation but the problem is how to validate your scripts and stage the configuration because you...

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Ansible Automation with Cisco ASA Multi-Context Mode

I thought I’d share my experience using Ansible and Cisco ASA firewalls in multi-context mode. Right from the beginning I had a few issues deploying the configuration and the switch between the...

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