Port Scanner

Quick TCP port scanner for network diagnostics. Check which ports are open on a host.

Setup

No dependencies required.

Usage

Scan common ports

{baseDir}/portscan.sh hostname
{baseDir}/portscan.sh 192.168.1.1

Scan specific port

{baseDir}/portscan.sh hostname --port 8080

Scan port range

{baseDir}/portscan.sh hostname --range 1-1000

Scan multiple specific ports

{baseDir}/portscan.sh hostname --ports 22,80,443,3306,5432

Quick mode (fast scan)

{baseDir}/portscan.sh hostname --quick

Output

ΓòöΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòù
Γòæ                      PORT SCAN RESULTS                         Γòæ
ΓòÜΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓò¥

Target: 192.168.1.1
Ports Scanned: 22, 80, 443, 3306, 5432, 8080

PORT      STATE     SERVICE
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇ
  22      OPEN      ssh
  80      OPEN      http
  443     OPEN      https
  3306    CLOSED    mysql
  5432    CLOSED    postgresql
  8080    OPEN      http-alt

Open Ports: 3 | Closed: 3
Duration: 3.2s

When to Use

• Network troubleshooting
• Service discovery
• Security auditing
• Port availability checks
• DevOps debugging