CCTLD Training Cohort 3

Module 5 – Monitoring Infrastructure

Master the art of enterprise-grade network visibility. Learn how to deploy robust monitoring solutions on Linux Virtual Machines using Nagios for infrastructure and Peekaping for latency analysis.

Start Learning Course Syllabus

terminal

SSH Remote Access

VM Access Credentials

Server IP

196.13.202.XX

Username

kenic_trainee

Password

********

Copy

# Connect via terminal

ssh [email protected]

warning

Permission denied

Ensure your SSH public key is added or you're using the correct password.

timer

Connection Timeout

Verify VPN connectivity or firewall rules on the target VM.

lock_reset

Host Key Failed

Run ssh-keygen -R [IP] to clear old fingerprints.

monitoring

Nagios Core Installation

Nagios Core provides monitoring and alerting services for servers, switches, applications and services. Follow these steps to perform a standard deployment on Ubuntu/Debian.

1 Update System & Install Dependencies

Copy sudo apt update && sudo apt upgrade -y sudo apt install -y autoconf gcc libc6 make wget unzip apache2 php libapache2-mod-php7.4 libgd-dev

2 Nagios Service Management

Action	Command
Restart Service	sudo systemctl restart nagios
Status Check	sudo systemctl status nagios
Test Config	/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg

download Download Nagios Installation Script

analytics

Peekaping Deployment (Docker)

Architecture & Security

Peekaping is a modern ICMP monitoring tool designed for containerized environments. It utilizes Docker for isolation and TimescaleDB for high-fidelity data persistence.

check_circle Data Persistence: Managed via named Docker volumes to ensure historical ping data survives container restarts.
check_circle Network Isolation: Runs on a dedicated internal Docker bridge network.
check_circle Secure Exposure: Interface accessible only via authenticated reverse proxy.