ggp1/internal/skills/catalog/tcpdump
internal/skills/catalog/tcpdump/SKILL.md
# tcpdump — Packet Capture ## Category Network Traffic Analysis ## License BSD-3-Clause ## Source https://github.com/the-tcpdump-group/tcpdump ## Purpose Capture and inspect network packets at the interface level. ## Use Cases - Investigate suspicious network connections - Verify mTLS is active on peer communications - Detect plaintext transmissions that should be encrypted - Forensic packet capture during security incidents - Monitor traffic patterns on specific ports ## Examples ```bash
development
Updated Apr 21, 2026
$ install --global
skillsauthnpx skillsauth add ggp1/mitiga internal/skills/catalog/tcpdumpInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
Security Scan Results
3 of 9 scanners reported clean
Some scanners were skipped, did not run, or reported a non-clean status. Review each row below.
3
Scanners Passed
9
Scanners in report
Clean
TrivyContainer and dependency vulnerability scanner
95%
Clean
SemgrepStatic code analysis for vulnerabilities
95%
Clean
mcp-scan (Snyk)Model Context Protocol security validation
95%
Skipped
Snyk (dep)Open source security scanning
50%
Skipped
Socket.devSupply chain security analysis
50%
Skipped
VirusTotalMulti-engine malware detection
50%
Skipped
CrowdStrikeAdvanced threat intelligence
50%
Skipped
OSV-ScannerOpen Source Vulnerability database check
50%
Skipped
OWASP Dep-Check
50%
Last scanned: Apr 21, 2026, 7:13 PM120.5s1 file scanned
SKILL.md
tcpdump — Packet Capture
Category
Network Traffic Analysis
License
BSD-3-Clause
Source
https://github.com/the-tcpdump-group/tcpdump
Purpose
Capture and inspect network packets at the interface level.
Use Cases
- Investigate suspicious network connections
- Verify mTLS is active on peer communications
- Detect plaintext transmissions that should be encrypted
- Forensic packet capture during security incidents
- Monitor traffic patterns on specific ports
Examples
# Capture peer protocol traffic
tcpdump -i any port 27027 -c 100 -w /tmp/capture.pcap
# Capture non-SSH traffic (avoid noise)
tcpdump -i any 'not port 22' -n -c 50
# Capture with timestamps and no DNS resolution
tcpdump -i any -tttt -n port 27027 -c 50
# Capture traffic to/from a specific host
tcpdump -i any host <suspicious_ip> -n -c 100 -w /tmp/investigation.pcap
Safety Notes
- Captures may contain sensitive data — handle with the same caution as logs.
- Never log raw packet content containing credentials or secrets.
- Requires appropriate privileges (typically root or
CAP_NET_RAW). - Use
-cto limit capture count and avoid filling disk. - Clean up capture files after analysis.
Related Skills
ggp1/internal/skills/catalog/who
development
VerifiedTrustedCommunity
# who / w — Logged-in Users ## Category User & Group Management ## License GPLv3+ (GNU coreutils) / GPLv2 (procps-ng) ## Source Included in all Linux distributions. ## Purpose Show who is currently logged in and what they are doing. ## Use Cases - Detect unauthorized active sessions - Monitor interactive logins in real-time - Identify login sources (IP, terminal) - Review idle times for active sessions ## Examples ```bash # All login information who -a # Currently logged-in users with act
SKILL.mdUpdated Apr 21, 2026
ggp1/internal/skills/catalog/useradd
development
VerifiedTrustedCommunity
# useradd / usermod / userdel — User Account Management ## Category User & Group Management ## License BSD-3-Clause (shadow-utils) ## Source https://github.com/shadow-maint/shadow (included in all Linux distributions) ## Purpose Create, modify, and delete user accounts. ## Use Cases - Create service accounts for Mitiga components - Modify user group memberships - Disable or remove compromised accounts - Audit account configurations ## Examples ```bash # Create a system service account (no
SKILL.mdUpdated Apr 21, 2026
ggp1/internal/skills/catalog/ufw
development
VerifiedTrustedCommunity
# ufw — Uncomplicated Firewall ## Category System Hardening ## License GPLv3 ## Source https://code.launchpad.net/ufw (included in Ubuntu/Debian) ## Purpose Simplified interface for managing iptables/nftables rules. ## Use Cases - Quick firewall status checks - Rule modifications on systems using ufw - Block malicious sources during incident response ## Examples ```bash # Show firewall status and rules ufw status verbose # Block a malicious IP ufw deny from <malicious_ip> # Allow a speci
SKILL.mdUpdated Apr 21, 2026
ggp1/internal/skills/catalog/trivy
development
VerifiedTrustedCommunity
# trivy — Comprehensive Vulnerability Scanner ## Category Vulnerability Scanning ## License Apache 2.0 ## Source https://github.com/aquasecurity/trivy (CNCF project) ## Purpose Scan filesystems, container images, Git repositories, and IaC configurations for known vulnerabilities (CVEs), misconfigurations, and exposed secrets. ## Use Cases - Audit project dependencies for known CVEs - Scan configuration files for misconfigurations - Detect embedded secrets in repositories - Scan container im
SKILL.mdUpdated Apr 21, 2026