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Sysadmin Toolbox
Curated tool recommendations and practical shell one-liners for operational work.
When to Auto-Consult
Load relevant references when user is:
- Debugging network connectivity, ports, traffic
- Troubleshooting DNS or SSL/TLS
- Analyzing processes, memory, disk usage
- Working with logs or system diagnostics
- Writing shell scripts or one-liners
- Asking "what's a good tool for..."
- Doing security audits or pentesting
- Working with containers/Docker/K8s
Bundled Guides
| File | Use When |
|---|
shell-oneliners.md in this skill's references folder | Need practical commands for: terminal, networking, SSL, curl, ssh, tcpdump, git, awk, sed, grep, find |
cli-tools.md in this skill's references folder | Recommending CLI tools: shells, file managers, network utils, databases, security tools |
web-tools.md in this skill's references folder | Web-based tools: SSL checkers, DNS lookup, performance testing, OSINT, scanners |
security-tools.md in this skill's references folder | Pentesting, vulnerability scanning, exploit databases, CTF resources |
shell-tricks.md in this skill's references folder | Shell scripting patterns and tricks |
Safety Boundaries
- Do not run destructive system commands, privilege-escalation steps, or offensive tooling unless the user explicitly asked for that scope.
- Do not scan hosts, domains, or networks the user does not control or have permission to assess.
- Do not assume a command is safe to paste into production without explaining what it does.
- Do not persist logs, captures, or credentials outside the user's requested troubleshooting workflow.
Quick Tool Index
Network Debugging
mtr - traceroute + ping combinedtcpdump / tshark - packet capturenetstat / ss - connection monitoringnmap - port scanningcurl / httpie - HTTP testing
DNS
dig / host - DNS queriesdnsdiag - DNS diagnosticssubfinder / amass - subdomain enumeration
SSL/TLS
openssl - certificate inspectiontestssl.sh - TLS testingsslyze - SSL scanningcertbot - Let's Encrypt
Process/System
htop / btop - process monitoringstrace / ltrace - syscall/library tracinglsof - open files/connectionsncdu - disk usage
Log Analysis
lnav - log navigatorGoAccess - web log analyzerangle-grinder - log slicing
Containers
dive - Docker image analysisctop - container toplazydocker - Docker TUI
Keeping Current
References auto-refresh weekly (Sundays 5am ET) from the upstream repo:
~/clawd-duke-leto/skills/sysadmin-toolbox/scripts/refresh.sh
Manual refresh anytime:
./scripts/refresh.sh [skill-dir]
Example Queries → Actions
"Why is this port not responding?" → Load shell-oneliners.md, search for netstat/ss/lsof commands
"What's a good tool for testing SSL?" → Load cli-tools.md SSL section, recommend testssl.sh or sslyze
"Show me how to find large files" → Load shell-oneliners.md, search for find/ncdu/du commands
"I need to debug DNS resolution" → Load shell-oneliners.md dig section + recommend dnsdiag from cli-tools.md
Weekly Installs
64
Repository
jdrhyne/agent-skills
GitHub Stars
218
First Seen
Feb 4, 2026
Security Audits
Gen Agent Trust HubWarnSocketWarnSnykWarn
Installed on
codex53
opencode53
cursor50
gemini-cli48
github-copilot45
kimi-cli44
