SSH Known Hosts Checker

A Go tool for parsing SSH known_hosts files and attempting SSH connections.

Features

• Parses both ~/.ssh/known_hosts and ~/.ssh/known_hosts.old files
• Supports both password and key-based authentication
• Multi-threaded connection attempts
• Detailed success/failure reporting

Usage

# Build the program
go build

# Run with password authentication
./ssh-known-hosts-checker -user username -password yourpassword

# Run with key-based authentication
./ssh-known-hosts-checker -user username -key /path/to/private/key

# Optional: Specify custom port (default: 22)
./ssh-known-hosts-checker -user username -password yourpassword -port 2222

Requirements

• Go 1.18 or later
• Access to SSH known_hosts files