
Network Diagnostics
- 130 installs
- 16 repo stars
- Updated November 20, 2025
- jackspace/claudeskillz
Troubleshoot network issues on WSL/Linux - MTU, DNS, connectivity, firewall, and service status - with persistable fixes.
About
Guides automated network troubleshooting for WSL and Linux across MTU, DNS, connectivity, and firewall checks. A developer uses it to diagnose and persist fixes for network problems.
- Covers MTU, DNS, connectivity, and firewall/routing checks
- WSL-specific guidance with rollback mechanisms
Network Diagnostics by the numbers
- 130 all-time installs (skills.sh)
- +1 installs in the week ending Aug 2, 2026 (Skillselion tracking)
- Ranked #490 of 1,438 DevOps & CI/CD skills by installs in the Skillselion catalog
- Data as of Aug 2, 2026 (Skillselion catalog sync)
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| Installs | 130 |
|---|---|
| repo stars | ★ 16 |
| Last updated | November 20, 2025 |
| Repository | jackspace/claudeskillz ↗ |
What it does
Troubleshoot network issues on WSL/Linux - MTU, DNS, connectivity, firewall, and service status - with persistable fixes.
Files
Network-diagnostics
Instructions
For network troubleshooting: 1. MTU Issues (common in WSL)
- Check current MTU: ip link show
- Test different MTU: sudo ip link set dev eth0 mtu 1350
- Common WSL MTU: 1300-1400
2. DNS Resolution
- Check /etc/resolv.conf
- Test with: dig google.com, nslookup google.com
- Try different DNS: 8.8.8.8, 1.1.1.1
3. Connectivity Tests
- Ping gateway: ip route | grep default
- Traceroute to destination
- Test ports: nc -zv host port, telnet host port
4. Firewall/Routing
- Check iptables: sudo iptables -L
- Review routes: ip route show
- WSL: Check Windows Firewall
5. Service Status
- Verify service is running
- Check listening ports: ss -tlnp, netstat -tlnp
- Generate scripts to persist fixes
- Include checks for WSL vs native Linux
- Add rollback mechanisms
Examples
Add examples of how to use this skill here.
Notes
- This skill was auto-generated
- Edit this file to customize behavior
{
"sections": {
"Notes": "- This skill was auto-generated\n- Edit this file to customize behavior",
"Instructions": "For network troubleshooting:\n1. **MTU Issues** (common in WSL)\n - Check current MTU: ip link show\n - Test different MTU: sudo ip link set dev eth0 mtu 1350\n - Common WSL MTU: 1300-1400\n2. **DNS Resolution**\n - Check /etc/resolv.conf\n - Test with: dig google.com, nslookup google.com\n - Try different DNS: 8.8.8.8, 1.1.1.1\n3. **Connectivity Tests**\n - Ping gateway: ip route | grep default\n - Traceroute to destination\n - Test ports: nc -zv host port, telnet host port\n4. **Firewall/Routing**\n - Check iptables: sudo iptables -L\n - Review routes: ip route show\n - WSL: Check Windows Firewall\n5. **Service Status**\n - Verify service is running\n - Check listening ports: ss -tlnp, netstat -tlnp\n- Generate scripts to persist fixes\n- Include checks for WSL vs native Linux\n- Add rollback mechanisms",
"Examples": "Add examples of how to use this skill here."
},
"id": "network-diagnostics",
"name": "network-diagnostics",
"description": "Automated network troubleshooting and diagnostics for WSL/Linux environments"
}---
name: network-diagnostics
description: Automated network troubleshooting and diagnostics for WSL/Linux environments
---
# Network-diagnostics
## Instructions
For network troubleshooting:
1. **MTU Issues** (common in WSL)
- Check current MTU: ip link show
- Test different MTU: sudo ip link set dev eth0 mtu 1350
- Common WSL MTU: 1300-1400
2. **DNS Resolution**
- Check /etc/resolv.conf
- Test with: dig google.com, nslookup google.com
- Try different DNS: 8.8.8.8, 1.1.1.1
3. **Connectivity Tests**
- Ping gateway: ip route | grep default
- Traceroute to destination
- Test ports: nc -zv host port, telnet host port
4. **Firewall/Routing**
- Check iptables: sudo iptables -L
- Review routes: ip route show
- WSL: Check Windows Firewall
5. **Service Status**
- Verify service is running
- Check listening ports: ss -tlnp, netstat -tlnp
- Generate scripts to persist fixes
- Include checks for WSL vs native Linux
- Add rollback mechanisms
## Examples
Add examples of how to use this skill here.
## Notes
- This skill was auto-generated
- Edit this file to customize behavior