Aliyun Swas Manage
cinience/alicloud-skills
A skill your agent uses when managing Alibaba Cloud Simple Application Server (SWAS OpenAPI 2020-06-01) resources end-to-end, including querying instances, starting/stopping/rebooting, executing…
Linux networking expert for iptables, nftables, routing, DNS, and network troubleshooting
Install Linux Networking
$ npx skills add RightNow-AI/openfang --skill linux-networking -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install RightNow-AI/openfang linux-networking --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/RightNow-AI/openfang.git skills-src && mkdir -p .claude/skills && cp -r skills-src/crates/openfang-skills/bundled/linux-networking .claude/skills/linux-networking && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "linux-networking" agent skill from https://github.com/RightNow-AI/openfang/tree/main/crates/openfang-skills/bundled/linux-networking into .claude/skills/linux-networking/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "linux-networking", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/RightNow-AI/openfang/tree/main/crates/openfang-skills/bundled/linux-networkingType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add RightNow-AI/openfang --skill linux-networking -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install RightNow-AI/openfang linux-networking --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/RightNow-AI/openfang.git skills-src && mkdir -p .agents/skills && cp -r skills-src/crates/openfang-skills/bundled/linux-networking .agents/skills/linux-networking && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "linux-networking" agent skill from https://github.com/RightNow-AI/openfang/tree/main/crates/openfang-skills/bundled/linux-networking into .agents/skills/linux-networking/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "linux-networking", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add RightNow-AI/openfang --skill linux-networking -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install RightNow-AI/openfang linux-networking --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/RightNow-AI/openfang.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/crates/openfang-skills/bundled/linux-networking .cursor/skills/linux-networking && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "linux-networking" agent skill from https://github.com/RightNow-AI/openfang/tree/main/crates/openfang-skills/bundled/linux-networking into .cursor/skills/linux-networking/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "linux-networking", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/RightNow-AI/openfang.git --path crates/openfang-skills/bundled/linux-networking--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add RightNow-AI/openfang --skill linux-networking -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install RightNow-AI/openfang linux-networking --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/RightNow-AI/openfang.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/crates/openfang-skills/bundled/linux-networking .gemini/skills/linux-networking && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "linux-networking" agent skill from https://github.com/RightNow-AI/openfang/tree/main/crates/openfang-skills/bundled/linux-networking into .gemini/skills/linux-networking/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "linux-networking", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install RightNow-AI/openfang linux-networkingInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add RightNow-AI/openfang --skill linux-networking -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/RightNow-AI/openfang.git skills-src && mkdir -p .github/skills && cp -r skills-src/crates/openfang-skills/bundled/linux-networking .github/skills/linux-networking && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "linux-networking" agent skill from https://github.com/RightNow-AI/openfang/tree/main/crates/openfang-skills/bundled/linux-networking into .github/skills/linux-networking/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "linux-networking", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add RightNow-AI/openfang --skill linux-networking -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install RightNow-AI/openfang linux-networking --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/RightNow-AI/openfang.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/crates/openfang-skills/bundled/linux-networking .opencode/skills/linux-networking && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "linux-networking" agent skill from https://github.com/RightNow-AI/openfang/tree/main/crates/openfang-skills/bundled/linux-networking into .opencode/skills/linux-networking/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "linux-networking", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
linux-networking- GitHub stars
- 18k
- Token cost
- ~882 tokens
- SKILL.md length
- 473 words
- Files
- 1
- Skills in repo
- 68
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
Linux networking expert for iptables, nftables, routing, DNS, and network troubleshooting
- Tasks that involve Cloud networking
- SKILL.md covers Key Principles, Techniques, Common Patterns and Pitfalls to Avoid
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Linux Networking is an agent skill from RightNow-AI/openfang. Linux networking expert for iptables, nftables, routing, DNS, and network troubleshooting
Its SKILL.md is about 880 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in DevOps & Cloud, covering Cloud networking. It works with Linux. The repository describes itself as: Open-source Agent Operating System. The licence is Apache-2.0.
When your agent uses it
- Tasks that involve Cloud networking
Example prompts
- “/linux-networking”
What it can do on your machine
Read from SKILL.md and the folder at commit acf2587. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Linux Networking loads about 882 tokens when it runs. Until then it costs about 27 tokens; SKILL.md has 473 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from RightNow-AI/openfang at commit acf2587, republished under its Apache-2.0 licence (© RightNow-AI). 473 words, ~882 tokens.
Download SKILL.mdSave it as
.claude/skills/linux-networking/SKILL.md (or your agent's skills folder).- name
- linux-networking
- description
- Linux networking expert for iptables, nftables, routing, DNS, and network troubleshooting
Linux Networking Expert
A senior systems engineer with extensive expertise in Linux networking internals, firewall configuration, routing policy, DNS resolution, and network diagnostics. This skill provides practical, production-grade guidance for configuring, securing, and troubleshooting Linux network stacks across bare-metal, virtualized, and containerized environments.
Key Principles
- Understand the packet flow through the kernel: ingress, prerouting, input, forward, output, postrouting chains determine where filtering and NAT decisions occur
- Use nftables as the modern replacement for iptables; it offers a unified syntax for IPv4, IPv6, ARP, and bridge filtering in a single framework
- Apply the principle of least privilege to firewall rules: default-deny with explicit allow rules for required traffic
- Monitor with ss (socket statistics) rather than the deprecated netstat for faster, more detailed connection information
- Document every routing rule and firewall change; network misconfigurations are among the hardest issues to diagnose retroactively
Techniques
- Use iptables -L -n -v --line-numbers to inspect rules with packet counters; use -t nat or -t mangle to inspect specific tables
- Write nftables rulesets in /etc/nftables.conf with named tables and chains; use nft list ruleset to verify and nft -f to reload atomically
- Configure policy-based routing with ip rule add and ip route add table to route traffic based on source address, mark, or interface
- Capture traffic with tcpdump -i eth0 -nn -w capture.pcap for offline analysis; filter with host, port, and protocol expressions
- Diagnose DNS with dig +trace for full delegation chain, and check systemd-resolved status with resolvectl status
- Create network namespaces with ip netns add for isolated testing; connect them with veth pairs and bridges
- Tune TCP performance with sysctl parameters: net.core.rmem_max, net.ipv4.tcp_window_scaling, net.ipv4.tcp_congestion_control
- Configure WireGuard interfaces with wg-quick using [Interface] and [Peer] sections for encrypted point-to-point or hub-spoke VPN topologies
Show full SKILL.md (188 more words)Show less
Common Patterns
- Port Forwarding: DNAT rule in the PREROUTING chain combined with a FORWARD ACCEPT rule to redirect external traffic to an internal service
- Network Namespace Isolation: Create a namespace, assign a veth pair, bridge to the host network, and apply per-namespace firewall rules for container-like isolation
- MTU Discovery: Use ping with -M do (do not fragment) and varying -s sizes to find the path MTU; set interface MTU accordingly to prevent fragmentation
- Split DNS: Configure systemd-resolved with per-link DNS servers so that internal domains resolve via corporate DNS while public queries go to a public resolver
Pitfalls to Avoid
- Do not flush iptables rules on a remote machine without first ensuring a scheduled rule restore or out-of-band console access
- Do not mix iptables and nftables on the same system without understanding that iptables-nft translates rules into nftables internally, which can cause conflicts
- Do not set overly aggressive TCP keepalive or timeout values on NAT gateways, as this causes silent connection drops for long-lived sessions
- Do not assume DNS is working just because ping succeeds; ping may use cached results or /etc/hosts entries while application DNS resolution fails
© RightNow-AI, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in crates/openfang-skills/bundled/linux-networking of RightNow-AI/openfang.
Open the folder on GitHubat commit acf2587
Compare with similar skills
Linux Networking next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Linux Networking this skillRightNow-AI/openfang | 18k | — | ~882 | Automated safety check: Pass | Apache-2.0 | |
| Aliyun Swas Managecinience/alicloud-skills | 397 | 1 repos | ~1.9k | Automated safety check: Pass | MIT | |
| Setup Cpu Proxy Serverdrawthingsai/draw-things-community | 579 | — | ~3.8k | Automated safety check: Pass | GPL-3.0 | |
| Nullprivate DeployNullPrivate/NullPrivate | 111 | — | ~2k | Automated safety check: Pass | GPL-3.0 | |
| Linux HardeningBagelHole/DevOps-Security-Agent-Skills | 1.1k | — | ~662 | Automated safety check: Notes | MIT | |
| Frappe Ops DeploymentImpertio-Studio/Frappe_Claude_Skill_Package | 187 | — | ~2.4k | Automated safety check: Notes | MIT |
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Related
Works with
Categories
Questions about Linux Networking
What does Linux Networking do?
Linux networking expert for iptables, nftables, routing, DNS, and network troubleshooting. Linux Networking is an agent skill from RightNow-AI/openfang.
When should I use Linux Networking?
Linux Networking fits situations like: tasks that involve Cloud networking.
How do I install Linux Networking in Claude Code?
Run `npx skills add RightNow-AI/openfang --skill linux-networking -a claude-code`. Or copy the skill folder (crates/openfang-skills/bundled/linux-networking in RightNow-AI/openfang) into .claude/skills/linux-networking in your project. Claude Code loads it when a task matches its description.
How do I install Linux Networking in Codex?
Run `npx skills add RightNow-AI/openfang --skill linux-networking -a codex`. Or copy the skill folder (crates/openfang-skills/bundled/linux-networking in RightNow-AI/openfang) into .agents/skills/linux-networking in your project. Codex loads it when a task matches its description.
Can I use Linux Networking in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add RightNow-AI/openfang --skill linux-networking -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/linux-networking, .gemini/skills/linux-networking, .github/skills/linux-networking and .opencode/skills/linux-networking in your project.
What does Linux Networking need to run?
SKILL.md names no scripts, command-line tools or credentials: Linux Networking is instructions for the agent only.
Does Linux Networking access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Linux Networking safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Linux Networking use?
Linux Networking is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Linux Networking use?
About 882 tokens (SKILL.md is roughly 3.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Linux Networking?
Skills that share tags, products or a category with Linux Networking: Aliyun Swas Manage (cinience/alicloud-skills, 397 stars), Setup Cpu Proxy Server (drawthingsai/draw-things-community, 579 stars), Nullprivate Deploy (NullPrivate/NullPrivate, 111 stars) and Linux Hardening (BagelHole/DevOps-Security-Agent-Skills, 1.1k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Linux Networking?
RightNow-AI (a GitHub organization) maintains it in RightNow-AI/openfang, which has 18,212 GitHub stars. The repository holds 68 skills in this directory. The repository was last updated on July 2, 2026.
Source: RightNow-AI/openfang on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.