The internet users may face a severe network failure across the globe for the next 48 hours as key domain servers undergoes routine maintenance.

The Internet Corporation for Assigned Names and Numbers (ICANN) is prepping up for maintenance work of domain servers and related network infrastructure by changing cryptographic key which will result in down-time in internet activity across the globe, claimed a report in the Russian news organisation.

The maintenance work will help protect the internet's address book called Domain Name System (DNS). The change of cryptographic key will help prove as a necessary step for internet protection as the number of cyber attacks swell, says internet experts.

The Communications Regulatory Authority (CRA) said the global internet shutdown is necessary for ensuring a secure, stable and resilient DNS.

"To further clarify, some internet users might be affected if their network operators or Internet Service Providers (ISPs) have not prepared for this change. However, this impact can be avoided by enabling the appropriate system security extensions," it added.

In light of the maintenance work, internet users will face difficulties in accessing web pages or making transactions for the next 48 hours.

(Featured image : TechWorm)