cPanel IP License Check

Technical summary

Updated Bash script to query the current cPanel license endpoint (https://verify.cpanel.net/app/verify), parse the modern HTML structure, expose license metadata (package, product, partner NOC, status, activity, updates expiry), and return execution status suitable for operational pipelines.

Executed scope

Migrated legacy endpoint (index.cgi over HTTP) to modern endpoint (app/verify over HTTPS).
Implemented resilient parser with awk plus column mapping for current history-table layout.
Added strict IP format validation before network calls.
Added reverse hostname lookup via host for incident context.
Added colorized terminal output for fast visual triage.
Standardized exit codes for monitoring and alert automation.

Execution flow

Receives IP argument (cpipcheck.sh <IP>).
Validates IP format and fails fast on invalid input.
Queries verify.cpanel.net/app/verify?ip=<IP> via HTTPS.
Parses history table fields from response.
Determines final status (active/inactive) and prints technical summary.
Returns 0 for active license and 1 for inactive/error.

Practical execution


# standard run
./cpipcheck.sh 127.0.0.1

# missing argument
./cpipcheck.sh

# invalid IP
./cpipcheck.sh invalid-ip

# monitoring one-liner
./cpipcheck.sh 127.0.0.1 > /dev/null && echo "License OK" || echo "License PROBLEM"

Monitoring integration


# simple alert when license is not active
if ! ./cpipcheck.sh 127.0.0.1 > /dev/null 2>&1; then
  echo "ALERT: cPanel license not active!" | mail -s "License Alert" [email protected]
fi

Operational troubleshooting


# DNS utils dependency (host)
yum install -y bind-utils     # RHEL/CentOS
apt-get install -y dnsutils   # Debian/Ubuntu

# debug returned HTML
curl -s "https://verify.cpanel.net/app/verify?ip=YOUR_IP" > /tmp/debug.html
grep -A 20 'class="history table"' /tmp/debug.html

Stack and tooling

Shell Script / Bash
cURL
DNS host (bind-utils/dnsutils)
awk
grep
sed

Operational tags

cPanel
Bash
Licensing
Monitoring

Operational outcome

cPanel license checks with reduced fragility against deprecated endpoints.
Standardized NOC/SRE validation semantics with clear success/failure states.
Faster incident triage for inactive/expired license scenarios.
Improved security posture by enforcing HTTPS for verification calls.

GitHub progress (issues)

Real results

Bash utility for operational cPanel license validation by IP, using the modern verify.cpanel.net endpoint, input validation, colored output and automation-ready exit codes.

Architecture and organization

Execution and operations

The project follows reproducible execution flow with technical validation in production-like environments.