# Send Network to your agent
Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually.
## Fast path
- Download the package from Yavira.
- Extract it into a folder your agent can access.
- Paste one of the prompts below and point your agent at the extracted folder.
## Suggested prompts
### New install

```text
I downloaded a skill package from Yavira. Read SKILL.md from the extracted folder and install it by following the included instructions. Tell me what you changed and call out any manual steps you could not complete.
```
### Upgrade existing

```text
I downloaded an updated skill package from Yavira. Read SKILL.md from the extracted folder, compare it with my current installation, and upgrade it while preserving any custom configuration unless the package docs explicitly say otherwise. Summarize what changed and any follow-up checks I should run.
```
## Machine-readable fields
```json
{
  "schemaVersion": "1.0",
  "item": {
    "slug": "network",
    "name": "Network",
    "source": "tencent",
    "type": "skill",
    "category": "通讯协作",
    "sourceUrl": "https://clawhub.ai/ivangdavila/network",
    "canonicalUrl": "https://clawhub.ai/ivangdavila/network",
    "targetPlatform": "OpenClaw"
  },
  "install": {
    "downloadUrl": "/downloads/network",
    "sourceDownloadUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=network",
    "sourcePlatform": "tencent",
    "targetPlatform": "OpenClaw",
    "packageFormat": "ZIP package",
    "primaryDoc": "SKILL.md",
    "includedAssets": [
      "SKILL.md"
    ],
    "downloadMode": "redirect",
    "sourceHealth": {
      "source": "tencent",
      "slug": "network",
      "status": "healthy",
      "reason": "direct_download_ok",
      "recommendedAction": "download",
      "checkedAt": "2026-04-30T18:17:52.104Z",
      "expiresAt": "2026-05-07T18:17:52.104Z",
      "httpStatus": 200,
      "finalUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=network",
      "contentType": "application/zip",
      "probeMethod": "head",
      "details": {
        "probeUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=network",
        "contentDisposition": "attachment; filename=\"network-1.0.0.zip\"",
        "redirectLocation": null,
        "bodySnippet": null,
        "slug": "network"
      },
      "scope": "item",
      "summary": "Item download looks usable.",
      "detail": "Yavira can redirect you to the upstream package for this item.",
      "primaryActionLabel": "Download for OpenClaw",
      "primaryActionHref": "/downloads/network"
    },
    "validation": {
      "installChecklist": [
        "Use the Yavira download entry.",
        "Review SKILL.md after the package is downloaded.",
        "Confirm the extracted package contains the expected setup assets."
      ],
      "postInstallChecks": [
        "Confirm the extracted package includes the expected docs or setup files.",
        "Validate the skill or prompts are available in your target agent workspace.",
        "Capture any manual follow-up steps the agent could not complete."
      ]
    }
  },
  "links": {
    "detailUrl": "https://openagent3.xyz/skills/network",
    "downloadUrl": "https://openagent3.xyz/downloads/network",
    "agentUrl": "https://openagent3.xyz/skills/network/agent",
    "manifestUrl": "https://openagent3.xyz/skills/network/agent.json",
    "briefUrl": "https://openagent3.xyz/skills/network/agent.md"
  }
}
```
## Documentation

### TCP/IP Basics

TCP guarantees delivery with retransmission — use for reliability (HTTP, SSH, databases)
UDP is fire-and-forget — use for speed when loss is acceptable (video, gaming, DNS queries)
Port numbers: 0-1023 privileged (need root), 1024-65535 available — common services have well-known ports
Ephemeral ports for client connections — OS assigns randomly from high range

### DNS

DNS resolution is cached at multiple levels — browser, OS, router, ISP — flush all when debugging
TTL determines cache duration — lower before migrations, raise after for performance
A record for IPv4, AAAA for IPv6, CNAME for aliases, MX for mail
CNAME cannot exist at zone apex (root domain) — use A record or provider-specific alias
dig and nslookup query DNS directly — bypass local cache for accurate results

### IP Addressing

Private ranges: 10.x.x.x, 172.16-31.x.x, 192.168.x.x — not routable on internet
CIDR notation: /24 = 256 IPs, /16 = 65536 IPs — each bit halves or doubles the range
127.0.0.1 is localhost — 0.0.0.0 means all interfaces, not a valid destination
NAT translates private to public IPs — most home/office networks use this
IPv6 eliminates NAT need — but dual-stack with IPv4 still common

### Common Ports

22: SSH — 80: HTTP — 443: HTTPS — 53: DNS
25/465/587: SMTP (mail sending) — 143/993: IMAP — 110/995: POP3
3306: MySQL — 5432: PostgreSQL — 6379: Redis — 27017: MongoDB
3000/8080/8000: Common development servers

### Troubleshooting Tools

ping tests reachability — but ICMP may be blocked, no response doesn't mean down
traceroute/tracert shows path — identifies where packets stop or slow down
netstat -tulpn or ss -tulpn shows listening ports — find what's using a port
curl -v shows full HTTP transaction — headers, timing, TLS negotiation
tcpdump and Wireshark capture packets — last resort for deep debugging

### Firewalls and NAT

Stateful firewalls track connections — allow response to outbound requests automatically
Port forwarding maps external port to internal IP:port — required to expose services behind NAT
Hairpin NAT for internal access to external IP — not all routers support it
UPnP auto-configures port forwarding — convenient but security risk, disable on servers

### Load Balancing

Round-robin distributes sequentially — simple but ignores server capacity
Least connections sends to least busy — better for varying request durations
Health checks remove dead servers — configure appropriate intervals and thresholds
Sticky sessions (affinity) keep user on same server — needed for stateful apps, breaks scaling

### VPNs and Tunnels

VPN encrypts traffic to exit point — all traffic appears from VPN server IP
Split tunneling sends only some traffic through VPN — reduces latency for local resources
WireGuard is modern and fast — simpler than OpenVPN, better performance
SSH tunnels for ad-hoc port forwarding — ssh -L local:remote:port creates secure tunnel

### SSL/TLS

TLS 1.2 minimum, prefer 1.3 — older versions have known vulnerabilities
Certificate chain: leaf → intermediate → root — missing intermediate causes validation failures
SNI allows multiple certs on one IP — older clients without SNI get default cert
Let's Encrypt certs expire in 90 days — automate renewal or face outages

### Common Mistakes

Assuming DNS changes are instant — TTL means old records persist in caches
Blocking ICMP entirely — breaks path MTU discovery, causes mysterious failures
Forgetting IPv6 — services may be accessible on IPv6 even with IPv4 firewall
Hardcoding IPs instead of hostnames — breaks when IPs change
Not checking both TCP and UDP — some services need UDP (DNS, VPN, game servers)
Confusing latency and bandwidth — high bandwidth doesn't mean low latency
## Trust
- Source: tencent
- Verification: Indexed source record
- Publisher: ivangdavila
- Version: 1.0.0
## Source health
- Status: healthy
- Item download looks usable.
- Yavira can redirect you to the upstream package for this item.
- Health scope: item
- Reason: direct_download_ok
- Checked at: 2026-04-30T18:17:52.104Z
- Expires at: 2026-05-07T18:17:52.104Z
- Recommended action: Download for OpenClaw
## Links
- [Detail page](https://openagent3.xyz/skills/network)
- [Send to Agent page](https://openagent3.xyz/skills/network/agent)
- [JSON manifest](https://openagent3.xyz/skills/network/agent.json)
- [Markdown brief](https://openagent3.xyz/skills/network/agent.md)
- [Download page](https://openagent3.xyz/downloads/network)