Linux Security using Blockchain

Abstract

Blockchain is a secure and distributed ledger structure and each block is a cryptographic hash of some other factors like a timestamp. The chain is formed by linking the blocks and distributed data is present on multiple computers. The blockchain made system are more fault-tolerant and has high availability even in times of database failures. Though Linux is considered a benchmark for security, it is susceptible to various attacks. With the use of blockchain, Linux logs can be made more transparent among multiple root users and secured by hosting the logs on a decentralized Ethereum blockchain which is customized as per the requirement. It has been observed that in a scenario with multiple root users working simultaneously on same system, transparency between multiple root users can be compromised if some appropriate changes are made in few lines containing the history, Hence, with the help of Ethereum blockchain and log monitoring using log monitors, it is much easier to track the intrusions to identify the source of unauthorized access to logs or changes in them.