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

Reference Files

File	Use When
`references/shell-oneliners.md`	Need practical commands for: terminal, networking, SSL, curl, ssh, tcpdump, git, awk, sed, grep, find
`references/cli-tools.md`	Recommending CLI tools: shells, file managers, network utils, databases, security tools
`references/web-tools.md`	Web-based tools: SSL checkers, DNS lookup, performance testing, OSINT, scanners
`references/security-tools.md`	Pentesting, vulnerability scanning, exploit databases, CTF resources
`references/shell-tricks.md`	Shell scripting patterns and tricks

Quick Tool Index

Network Debugging

```
mtr
```
- traceroute + ping combined
```
tcpdump
```
/
```
tshark
```
- packet capture
```
netstat
```
/
```
ss
```
- connection monitoring
```
nmap
```
- port scanning
```
curl
```
/
```
httpie
```
- HTTP testing

DNS

```
dig
```
/
```
host
```
- DNS queries
```
dnsdiag
```
- DNS diagnostics
```
subfinder
```
/
```
amass
```
- subdomain enumeration

SSL/TLS

```
openssl
```
- certificate inspection
```
testssl.sh
```
- TLS testing
```
sslyze
```
- SSL scanning
```
certbot
```
- Let's Encrypt

Process/System

```
htop
```
/
```
btop
```
- process monitoring
```
strace
```
/
```
ltrace
```
- syscall/library tracing
```
lsof
```
- open files/connections
```
ncdu
```
- disk usage

Log Analysis

```
lnav
```
- log navigator
```
GoAccess
```
- web log analyzer
```
angle-grinder
```
- log slicing

Containers

```
dive
```
- Docker image analysis
```
ctop
```
- container top
```
lazydocker
```
- 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

Sysadmin Toolbox

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