Tripwire is a popular Linux Intrusion Detection System (IDS) that runs on systems in order to detect if unauthorized filesystem changes occurred over time.
In CentOS and RHEL distributions, tripwire is not a part of official repositories. However, the tripwire package can be installed via Epel repositories.
To begin, first install Epel repositories in CentOS and RHEL system, by issuing the below command.
# yum install epel-release
After you’ve installed Epel repositories, make sure you update the system with the following command.
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