In 2015, when Cisco bought OpenDNS and took a big step in cloud security equipment. Provides a Software As A Service or SaaS to provide security at the DNS protocol level. What Is OpenDNS Platform?Introduced in 2006 to improve and enhance user security using the DNS protocol, it gradually began developing and creating a product […]
In this post, I am going to configure Survivable Remote Site Telephony (SRST) between CUCM (site A) and a cisco router 2911 (Site B) for a call processing backup mechanism that allows IP phones to register when a WAN link is disconnected. Assume that the WAN link goes down, Cisco IP phones at site B should register to […]
In this article we are going to talk about The Port-Security feature in Cisco Switches, which is a Layer 2 First Hop Security Mechanism. Port-Security Port-Security is a feature on Cisco Layer 2 and Multi-Layer Switches (MLS), which in simple words, it is helping us to limit the number of MAC addresses that the device […]
Elissa Garlin
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