skills.rest
darblex
darblexCOMMUNITY
Explore all skills by this author →
GitHub

dns-networking

Debug DNS resolution, network connectivity, and HTTP request failures.

Updated Mar 10, 2026
Search Tags:#debugging#troubleshooting#networking#connectivity#dns#curl
One-click install
npx skills add https://github.com/darblex/price-compare-israel --skill dns-networking-darblex
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: dns-networking
Source: https://github.com/darblex/price-compare-israel/tree/main/workspace/skills/dns-networking
Command: npx skills add https://github.com/darblex/price-compare-israel --skill dns-networking-darblex

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill helps troubleshoot and resolve issues related to DNS resolution, network connectivity, and HTTP request failures, ensuring seamless communication for applications and services.

Core Features & Use Cases

  • DNS Debugging: Diagnose name resolution failures, check DNS record propagation, and inspect local DNS configurations.
  • Connectivity Testing: Verify port accessibility, trace network paths, and identify listening services.
  • HTTP Diagnostics: Inspect curl requests, debug proxy configurations, and troubleshoot SSL/TLS certificate errors.
  • Use Case: When a web application is unreachable, this Skill can pinpoint whether the issue lies in DNS, a blocked port, a misconfigured proxy, or a certificate problem.

Quick Start

Use the dns-networking skill to check if port 443 is open for example.com.

Frequently Asked Questions about dns-networking

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I debug DNS resolution failures for my domain?▼

Debug DNS resolution failures by querying name servers with dig and nslookup to check record propagation and inspect local DNS configurations. This process isolates whether name resolution is the root cause of your domain connectivity issues.

Why does my curl request fail with an SSL certificate error?▼

Curl requests fail with SSL certificate errors when there are misconfigured proxy settings or invalid TLS certificates. Diagnose these HTTP request failures by inspecting the curl execution path and verifying the SSL/TLS certificate chain.

How do I test if a specific network port is accessible?▼

Test network port accessibility using netcat to verify connectivity and identify listening services. This checks if firewalls or network rules are blocking traffic to the target port.

Do I need to install special dependencies to troubleshoot network connectivity?▼

You do not need special dependencies to troubleshoot network connectivity, but common command-line networking utilities like dig, nslookup, curl, and nc must be available in your environment.

What is the best way to diagnose an unreachable web application?▼

The best way to diagnose an unreachable web application is to systematically test DNS resolution, port accessibility, firewall rules, and proxy configurations to pinpoint the exact network layer causing the failure.

Related Skills

Explore More Software Engineering Skills→
albertdobmeyeralbertdobmeyer
2

dns-networking

Diagnose DNS resolution and network connectivity failures using command-line tools.

Community
Intermediate
automateyournetworkautomateyournetwork
627

grafana-observability

Query Prometheus metrics, Loki logs, and alerts from Grafana instances.

Community
Advanced
gitgoodordietryinggitgoodordietrying
1

dns-networking

Diagnose DNS resolution, connectivity, and HTTP issues using dig, nslookup, curl, ping, and nc.

Community
Intermediate
HKUDSHKUDS
46.8k

cli-anything-adguardhome

Manage and monitor AdGuard Home servers via command-line tools.

Official
Intermediate