In this chapter, we will discuss the issues related to the security of CentOS 7. However, instead of taking a traditional tour relating to hardening a server, we will take a more pragmatic approach by reviewing SSH, SELinux, HIDS, and Firewalld in an alternate fashion in order to encourage you to discover more about the system in general.
In this chapter, we will:
Discover how to use
aureportto generate audit reports and auditSELinuxwithsetroubleshootLearn how to add and manage
SSHbanners and useFIGletto create custom bannersDiscover more about the rudiments of tuning the
SSHserviceLearn how to install
Tripwireand provide your system with an intrusion detection systemDiscover more about Firewalld, zone management, and how to add/remove interfaces, ports, and masquerade your infrastructure
Learn how to remove Firewalld and return to iptables