ping is the fundamental network diagnostic tool used by system administrators worldwide to test connectivity between hosts. It sends ICMP Echo Request packets to a target host and measures the round-trip time for responses, helping identify network latency, packet loss, and basic reachability issues.
📑 Table of Contents
Key Features
- Connectivity Testing – Verify if a host is reachable over the network
- Latency Measurement – Measure round-trip time in milliseconds
- Packet Loss Detection – Identify network reliability issues
- Continuous Monitoring – Run indefinitely to monitor connection stability
Installation
# Pre-installed on most Linux distributions
# If missing, install with:
sudo apt install iputils-ping # Debian/Ubuntu
sudo dnf install iputils # Fedora/RHEL
Basic Usage
# Ping a host
ping google.com
# Ping with count limit
ping -c 5 192.168.1.1
# Ping with specific interval
ping -i 0.5 example.com
# Ping with packet size
ping -s 1000 192.168.1.1
# Quiet mode (summary only)
ping -q -c 10 google.com
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