Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add chaterm/terminal-skills --skill dnsgit clone --depth 1 https://github.com/chaterm/terminal-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/chaterm/terminal-skills/dns)<a href="https://agentmods.dev/skills/chaterm/terminal-skills/dns"><img src="https://agentmods.dev/badge/skills/chaterm/terminal-skills/dns/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/chaterm/terminal-skills/dns"><img src="https://agentmods.dev/badge/skills/chaterm/terminal-skills/dns.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00008 | $0.01942 |
| Opus 5 | $0.00004 | $0.00971 |
| Sonnet 5 | $0.00002 | $0.00388 |
| Haiku 4.5 | $0.00001 | $0.00194 |
Grade B, and why
dns scanned grade B with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
sudo dscacheutil -flushcache How it starts
The opening of the file, as written. The whole thing — 349 lines — stays where its author put it; the contents beside it link to each section on GitHub.
DNS 配置与排查
概述
DNS 配置、解析排查、BIND/CoreDNS 等技能。
DNS 查询工具
dig
# 基础查询
dig example.com
dig example.com A
dig example.com AAAA
dig example.com MX
dig example.com NS
dig example.com TXT
dig example.com ANY
# 简短输出
dig +short example.com
# 指定 DNS 服务器
dig @8.8.8.8 example.com
dig @1.1.1.1 example.com
# 追踪解析过程
dig +trace example.com
# 反向解析
dig -x 8.8.8.8
# 查询特定记录
dig example.com SOA
dig example.com CNAME
# 禁用递归
dig +norecurse example.com
nslookup
# 基础查询
nslookup example.com
nslookup example.com 8.8.8.8
# 查询特定类型
nslookup -type=mx example.com
nslookup -type=ns example.com
nslookup -type=txt example.com
# 反向解析
nslookup 8.8.8.8
host
# 基础查询
host example.com
host -t mx example.com
host -t ns example.com
# 反向解析
host 8.8.8.8
# 详细输出
host -v example.com
本地 DNS 配置
/etc/resolv.conf
# 查看配置
cat /etc/resolv.conf
# 配置示例
nameserver 8.8.8.8
nameserver 8.8.4.4
search example.com
options timeout:2 attempts:3
# 临时修改（可能被覆盖）
echo "nameserver 8.8.8.8" > /etc/resolv.conf
/etc/hosts
# 查看
cat /etc/hosts
# 添加记录
echo "192.168.1.100 myserver.local" >> /etc/hosts
# 格式
127.0.0.1 localhost
192.168.1.100 myserver myserver.local
systemd-resolved
# 查看状态
systemd-resolve --status
resolvectl status
# 查询
resolvectl query example.com
# 刷新缓存
systemd-resolve --flush-caches
resolvectl flush-caches
# 配置文件
/etc/systemd/resolved.conf
BIND DNS 服务器
安装与管理
# 安装
apt install bind9 bind9utils # Debian/Ubuntu
yum install bind bind-utils # CentOS/RHEL
# 服务管理
systemctl start named
systemctl enable named
systemctl status named
# 检查配置
named-checkconf
named-checkzone example.com /etc/bind/zones/db.example.com
主配置
# /etc/bind/named.conf.options
options {
directory "/var/cache/bind";
forwarders {
8.8.8.8;
8.8.4.4;
};
dnssec-validation auto;
listen-on { any; };
listen-on-v6 { any; };
allow-query { any; };
allow-recursion { 192.168.0.0/16; 10.0.0.0/8; };
recursion yes;
};
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 10d ago First seen · 349 lines · 8 tokens per session scan B ade572b0f797
dns is a skill published in the GitHub repository chaterm/terminal-skills (59 stars, last pushed 6mo ago), licensed Apache-2.0. It adds 8 tokens to every session and 1,942 once invoked, about $0.0000 per session on Opus 5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
c-network
DNS lookups with doggo and readable HTTP requests with httpie — modern networking tools for the terminal.
skillci-guardrails
Use this skill whenever you create, edit, or review a Claude Skill — any SKILL.md file, or the eval cases/config next to one. Most SKILL.md files today are written or edited by an agent, not typed by hand, so this closes the loop by having the agent that just wrote the skill also author it defensively and verify it…
example-skill
Writes a single changelog entry summarizing a code change, given a short description of what changed.
clean-skill
A skill with no lint issues, used as a starting point for the lint-on-type test.
skill-with-referenced-issue
Has a clean SKILL.md but an unsafe referenced script.
council
Run one request through several skills in parallel, isolated subagents, then merge their answers or judge the single best one. Use when the user invokes /council (or /council manage), or uses clear multi-skill-comparison language like "try this with a few different skills", "compare how different skills answer this"…