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ICKTB is team of experience and expert in ICT industry sharing their knowledge.

90 Articles

Domain Name System (DNS)

DNS is a host name to IP address translation service. DNS is a distributed database implemented in a hierarchy of name servers. It is an application layer protocol for message exchange between clients and servers. Every host is identified by the IP...

Gateway Load Balancing Protocol (GLBP)

Gateway Load Balancing Protocol (GLBP) is one of First Hop Redundancy Protocol (FHRP) which provides redundancy like other First Hop Redundancy Protocol, also provides load Balancing. It is a Cisco proprietary protocol which can perform both...

Virtual Router Redundancy Protocol (VRRP)

VRRP is an open standard protocol, which is used to provide redundancy in a network. It is a network layer protocol (protocol number-112). The number of routers (group members) in a group acts as a virtual logical router which will be the default...

Hot Standby Router Protocol (HSRP)

Hot Standby Router Protocol (HSRP) is a CISCO proprietary protocol, which provides redundancy for a local subnet. In HSRP, two or more routers gives an illusion of a virtual router. HSRP allows you to configure two or more routers as standby routers...

First-hop redundancy protocol (FHRP)

IP routing redundancy is designed to allow for transparent fail-over at the first-hop IP router. Well, first off, let’s briefly recall the concept of a default gateway: a default gateway is nothing else than the first hop for packets from a...

Master OSPF Routing Protocol

Routing protocols basically exchange information so routers can learn routes. The routers learn information about subnets, routes to those subnets, and metric information about how good each route is compared to others. The routing protocol can then...

ICTKB-IMG

Undo sent email in GMAIL

We’ve all accidentally sent an email too early, without a specific attachment, or to the wrong address. It can be devastating. Regardless of how it happened, an accidental email can make you seem too eager, too rushed, or worse. Finally, there is...

ICTKB-IMG

Upgrading Paloalto Firewall, Panorama & Wildfire?

Are you planning to upgrade Panorama managed Paloalto firewall? Is your Paloalto forwarding samples to on-prem Wildfire appliance? If yes, you need to know few pre-requisite before upgrading firewall. When upgrading firewalls that you manage with...

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