Network Tools

GAGOS provides a comprehensive suite of network diagnostic tools accessible from your browser. These tools are especially useful for troubleshooting connectivity issues from within a Kubernetes cluster.

Ping

Test ICMP connectivity to a host.

• Host: IP address or hostname
• Count: Number of packets (default: 4)

Output includes packet loss percentage and RTT statistics (min/avg/max).

DNS Lookup

Resolve DNS records for a domain.

• Host: Domain name to resolve
• Record Type: A, AAAA, CNAME, MX, NS, TXT, SRV, PTR

Useful for verifying Kubernetes service DNS resolution.

Port Check

Test TCP connectivity to a specific port.

• Host: Target hostname or IP
• Port: TCP port number
• Timeout: Connection timeout in seconds

Shows connection success/failure and response time.

Traceroute

Trace the network path to a destination.

• Host: Destination host
• Max Hops: Maximum number of hops (default: 30)

Displays each hop with IP, hostname, and latency.

Telnet

Open a TCP connection and optionally send data.

• Host: Target host
• Port: TCP port
• Command: Optional data to send

Useful for testing text-based protocols.

Whois

Look up domain or IP registration information.

• Query: Domain name or IP address

Returns registrar, registration dates, and contact information.

SSL Check

Inspect SSL/TLS certificates.

• Host: HTTPS hostname
• Port: Port number (default: 443)

Shows certificate chain, validity dates, issuer, and SANs.

Curl

Make HTTP requests and view responses.

• URL: Target URL
• Method: GET, POST, PUT, DELETE, etc.
• Headers: Custom request headers
• Body: Request body (for POST/PUT)

Displays response status, headers, and body.

Network Interfaces

View local network configuration.

Shows all network interfaces with IP addresses, MAC addresses, and status.

Use Cases

Troubleshooting Service Connectivity

# Check if service is reachable
Port Check: my-service.namespace.svc.cluster.local:8080

# Verify DNS resolution
DNS Lookup: my-service.namespace.svc.cluster.local (A record)

External Connectivity

# Test internet access
Ping: 8.8.8.8

# Check external API
Curl: https://api.example.com/health

Certificate Validation

# Check certificate expiry
SSL Check: my-ingress.example.com

Requirements

For ping and traceroute to work, GAGOS needs NET_RAW capability. See Installation for details.