Network protocols and troubleshooting - TCP/IP, DNS, HTTP/HTTPS, SSH, firewalls.
Executes network diagnostics and troubleshooting commands when you encounter connectivity, DNS, or firewall issues. Automatically runs tools like ping, dig, traceroute, ss, and curl to diagnose connection problems and verify network configurations.
/plugin marketplace add pluginagentmarketplace/custom-plugin-devops/plugin install devops-automation-plugin@pluginagentmarketplace-devopsThis skill inherits all available tools. When active, it can use any tool Claude has access to.
assets/networking_config.yamlassets/ssh-config-templatereferences/NETWORKING_GUIDE.mdreferences/PROTOCOLS.mdscripts/network_checker.pyscripts/port-scanner.shMaster networking fundamentals for DevOps infrastructure management.
| Name | Type | Required | Default | Description |
|---|---|---|---|---|
| protocol | string | No | all | Protocol focus |
| operation | string | Yes | - | Operation type |
# DNS
dig +trace example.com
dig @8.8.8.8 example.com
host -t MX example.com
# TCP/IP Diagnostics
ping -c 4 host
traceroute host
ss -tuln
ip addr show
# HTTP Testing
curl -I https://example.com
curl -v https://example.com
# SSL/TLS
openssl s_client -connect host:443
openssl x509 -in cert.pem -text -noout
# SSH
ssh-keygen -t ed25519
ssh-copy-id user@host
ssh -L 8080:localhost:80 user@host
ssh -D 1080 user@host
# Firewall (UFW)
ufw status verbose
ufw allow 22/tcp
ufw deny from 192.168.1.100
# Firewall (iptables)
iptables -L -n -v
iptables -A INPUT -p tcp --dport 22 -j ACCEPT
| Symptom | Root Cause | Solution |
|---|---|---|
| Connection refused | Service not running | Check ss -tuln |
| Connection timeout | Firewall/routing | Check firewall, traceroute |
| Name resolution failed | DNS issue | Check /etc/resolv.conf |
| Certificate error | Expired/invalid cert | Check dates, verify chain |
ip link showss -tulndig hostnameiptables -Lsshd -tiptables -L -nThis skill should be used when the user asks to "create a slash command", "add a command", "write a custom command", "define command arguments", "use command frontmatter", "organize commands", "create command with file references", "interactive command", "use AskUserQuestion in command", or needs guidance on slash command structure, YAML frontmatter fields, dynamic arguments, bash execution in commands, user interaction patterns, or command development best practices for Claude Code.
This skill should be used when the user asks to "create an agent", "add an agent", "write a subagent", "agent frontmatter", "when to use description", "agent examples", "agent tools", "agent colors", "autonomous agent", or needs guidance on agent structure, system prompts, triggering conditions, or agent development best practices for Claude Code plugins.
This skill should be used when the user asks to "create a hook", "add a PreToolUse/PostToolUse/Stop hook", "validate tool use", "implement prompt-based hooks", "use ${CLAUDE_PLUGIN_ROOT}", "set up event-driven automation", "block dangerous commands", or mentions hook events (PreToolUse, PostToolUse, Stop, SubagentStop, SessionStart, SessionEnd, UserPromptSubmit, PreCompact, Notification). Provides comprehensive guidance for creating and implementing Claude Code plugin hooks with focus on advanced prompt-based hooks API.