Cyber Defense Monitoring Solutions course (ITX8071) has been designed to provide an introduction to essential security monitoring tools and technologies. The course covers a number of important security monitoring concepts like event log collection, firewalling, using regular expressions for processing security data, real-time event log monitoring, event correlation, and network intrusion detection. These concepts are studied from a perspective of a security monitoring engineer and a number of open source security monitoring solutions are discussed. During the lectures and hands-on labs, we will learn how to use rsyslog, syslog-ng, iptables, nft, grep and pcregrep command line tools, Simple Event Correlator, Suricata, and ElasticStack.