Tools

Tools: We Built 42 Free Python CLI Tools for Linux Sysadmins - Here's the Full Collection (2026)

2026-04-12 0 views admin
Tools: We Built 42 Free Python CLI Tools for Linux Sysadmins - Here's the Full Collection (2026)

42 Lightweight Python CLI Tools for Linux Sysadmins — No Heavy Monitoring Stack Required

Why I Built This

Design Philosophy

1. Zero external dependencies

2. One tool, one job

3. CLI + Python API

4. Audit mode with severity levels

5. JSON output

Install Everything at Once

The Full Collection

System Monitoring & Performance

dargslan-sysinfo — System Information

dargslan-process-monitor — Process Monitor

dargslan-memory-profiler — Memory Profiler

dargslan-swap-analyzer — Swap Analyzer

dargslan-disk-benchmark — Disk I/O Benchmark

dargslan-bandwidth-monitor — Bandwidth Monitor

Networking & DNS

dargslan-net-scanner — Network Scanner

dargslan-port-monitor — Port Monitor

dargslan-tcp-monitor — TCP Connection Monitor

dargslan-dns-check — DNS Record Checker

dargslan-dns-resolver — DNS Resolver Tester

dargslan-ip-geo — IP Geolocation

Security & Hardening

dargslan-security-scan — Security Scanner

dargslan-firewall-audit — Firewall Auditor

dargslan-iptables-export — Firewall Rule Exporter

dargslan-ssh-audit — SSH Configuration Auditor

dargslan-user-audit — User Account Auditor

dargslan-kernel-check — Kernel Parameter Checker

dargslan-cert-manager — SSL/TLS Certificate Manager

dargslan-ssl-checker — SSL/TLS Checker

dargslan-git-audit — Git Repository Auditor

dargslan-grub-check — GRUB Bootloader Checker

Services & Configuration

dargslan-service-monitor — Systemd Service Monitor

dargslan-systemd-timer — Systemd Timer Manager

dargslan-systemd-analyze — Boot Time Analyzer

dargslan-cron-audit — Crontab Auditor

dargslan-nginx-analyzer — Nginx Config Analyzer

dargslan-apache-analyzer — Apache Config Analyzer

Logs & Maintenance

dargslan-log-parser — Log File Parser

dargslan-log-rotate — Log Rotation Analyzer

dargslan-journald-analyzer — Journal Log Analyzer

Storage & Filesystems

dargslan-disk-cleaner — Disk Cleaner

dargslan-backup-monitor — Backup Monitor

dargslan-lvm-check — LVM Volume Checker

dargslan-nfs-health — NFS Health Checker

Containers & Databases

dargslan-docker-health — Docker Health Checker

dargslan-container-audit — Container Security Auditor

dargslan-mysql-health — MySQL/MariaDB Health Checker

dargslan-postgres-health — PostgreSQL Health Checker

dargslan-redis-health — Redis Health Checker

dargslan-package-audit — Package Auditor

The Meta-Package

My Recommendations: Which Tools to Install First

For a Quick Server Health Check

For Security Hardening

For Container Environments

For Web Server Administration

For Database Administrators

For Network Troubleshooting

For Compliance & Documentation

Read-Only by Default

Built for Humans and Automation

Human-friendly CLI output

Machine-friendly structured output

What’s Next

Final Thoughts As a Linux sysadmin, I got tired of installing heavy monitoring stacks just to answer simple questions: So I built something different: 42 lightweight, zero-dependency Python CLI tools for Linux system administration, monitoring, auditing, and troubleshooting. Every tool is focused on one task. Every tool installs with a single pip install. Every tool outputs clean, actionable reports. No bloated agents. No giant dashboards. No dependency chains. Just practical tools that work. Most monitoring stacks are excellent at scale, but they often feel like overkill when you just want to inspect a server quickly, audit a system, or troubleshoot a problem from the command line. I wanted tools that were: That led to a simple philosophy. Everything is built using the Python standard library only. If the machine has Python 3.7+, the tools work. Instead of building one huge all-in-one package, I split everything into focused utilities. That makes each package: Each tool works both from the command line and as a Python import. So you can use them interactively or integrate them into your own scripts and automation. Every tool can flag findings with severity levels like: That makes the output immediately useful for audits, CI checks, and operational reviews. Need to pipe results into your monitoring stack, SIEM, or custom automation? Every tool supports structured output for machine-readable workflows. If you want the full collection, install the meta-package: to see all available commands. Get a complete system overview: CPU, memory, disk, network interfaces, kernel version, and uptime in one command. Find zombie processes, track resource-heavy processes, and get per-process CPU/memory breakdown. Per-process RSS analysis, swap usage tracking, memory grouped by application name, and shared memory segment listing. Per-process swap usage breakdown, swappiness analysis, and memory pressure detection. Monitor CPU, memory, and I/O limits for containers and system slices. Supports cgroups v1 and v2. Measure sequential read/write speed, random IOPS, and write latency with P50/P95/P99 percentiles. Real-time network interface throughput monitoring with per-interface statistics. Lightweight ping sweep and port scanning without an nmap dependency. Track listening ports, identify exposed services, and detect unexpected listeners. Track connection states (ESTABLISHED, TIME_WAIT, CLOSE_WAIT), per-IP statistics, and detect connection abuse. Check A, MX, NS, TXT records and verify DNS propagation across multiple nameservers. Compare resolver performance (Google, Cloudflare, Quad9), test DNSSEC validation, and diagnose resolution issues. IP geolocation lookup with WHOIS data, reverse DNS, and ISP identification. Comprehensive Linux security scan: SSH config, SUID files, kernel parameters, with a numeric security score. Audit iptables and nftables rules for security weaknesses and misconfigurations. Export iptables/nftables rules to readable, JSON, and CSV formats for documentation and compliance. Audit SSH server configuration: cipher suites, key exchange algorithms, and authentication policies. Find empty passwords, duplicate UIDs, unauthorized sudo access, and inactive accounts. Audit sysctl kernel parameters for security hardening with a security score and recommendations. Track certificate expiry across all your servers and local files. Bulk check with alerting thresholds. Quick SSL certificate expiry and security configuration check for any hostname. Scan Git repositories for accidentally committed secrets, API keys, large files, and security leaks. Audit boot entries, installed kernels, UEFI/Secure Boot status, and GRUB password protection. Track failed systemd units, enabled/disabled services, and service health status. List, audit, and compare systemd timers with cron jobs. Find slow services, view the critical boot chain, and optimize Linux startup time. Audit crontab entries for security issues, syntax errors, and schedule conflicts. Audit Nginx server blocks, SSL configuration, security headers, and reverse proxy settings. Audit Apache VirtualHosts, SSL settings, module configuration, and security headers. Parse and analyze syslog, auth.log, nginx, and Apache access/error logs with pattern matching. Audit logrotate configuration, find large unrotated logs, and check rotation health. Find boot errors, OOM kills, failed units, and security events in systemd journal. Find large files, analyze disk usage by directory, and clean temporary files. Check backup freshness, verify integrity, and monitor backup job status. Audit PV, VG, LV status, thin pool usage, and snapshot health. Detect stale NFS mounts, measure I/O latency, audit exports, and run throughput tests. Check Docker container health, resource usage, and configuration issues. Audit Docker/Podman containers for privileged mode, root user, excessive capabilities, and security misconfigurations. Monitor connections, slow queries, replication status, and buffer pool usage. Monitor connections, table bloat, vacuum status, locks, and replication lag. Monitor memory usage, persistence status, replication health, and slow log. Find outdated, orphaned, and security-vulnerable packages on Debian/Ubuntu and RHEL/CentOS. Don’t want to install tools one by one? Install everything in a single command: This meta-package pulls in the full collection, so you can explore the entire toolkit and keep the commands available on any Linux box with Python 3.7+. These three immediately show you CPU, memory, and disk status. Run these on every new server. The security scanner gives you a numeric score and concrete recommendations. Essential for Docker and container-heavy Linux environments. Audit web server config, monitor SSL certificate expiry, and analyze logs. A practical bundle for database health monitoring plus storage benchmarking. Track TCP connections, compare DNS resolver performance, and scan your network quickly. Export firewall rules, scan repositories for leaked secrets, and audit boot security. One design choice I care about a lot is safety. Almost every tool is read-only by default and only inspects system state. The one notable exception is: That makes the toolkit practical for production audits, troubleshooting sessions, and scripted checks. These tools are designed for two use cases at the same time: When you're SSH'd into a server at 2 AM, you want readable output that gets to the point. When you're integrating into pipelines, health checks, automation, or monitoring systems, JSON output gives you flexibility. That means the same tool can be used: I’m continuing to expand the collection. Planned additions include: If you have ideas for additional Linux admin tools, I’d love to hear them. Linux sysadmins do not always need a full monitoring platform. Sometimes the right answer is a lightweight, zero-dependency CLI tool that does one thing well and gives you a useful report immediately. That’s exactly why I built this toolkit. If that sounds useful, start with: Or install only the tools that match your workflow. If you find the project useful, share it with your team. Templates let you quickly answer FAQs or store snippets for re-use. Some comments may only be visible to logged-in visitors. Sign in to view all comments. Hide child comments as well For further actions, you may consider blocking this person and/or reporting abuse

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$ -weight: 500;">pip -weight: 500;">install dargslan-toolkit -weight: 500;">pip -weight: 500;">install dargslan-toolkit -weight: 500;">pip -weight: 500;">install dargslan-sysinfo dargslan-sysinfo report -weight: 500;">pip -weight: 500;">install dargslan-sysinfo dargslan-sysinfo report -weight: 500;">pip -weight: 500;">install dargslan-process-monitor dargslan-proc report -weight: 500;">pip -weight: 500;">install dargslan-process-monitor dargslan-proc report -weight: 500;">pip -weight: 500;">install dargslan-memory-profiler dargslan-memprof report dargslan-memprof top -n 20 dargslan-memprof grouped -weight: 500;">pip -weight: 500;">install dargslan-memory-profiler dargslan-memprof report dargslan-memprof top -n 20 dargslan-memprof grouped -weight: 500;">pip -weight: 500;">install dargslan-swap-analyzer dargslan-swap report -weight: 500;">pip -weight: 500;">install dargslan-swap-analyzer dargslan-swap report -weight: 500;">pip -weight: 500;">install dargslan-cgroup-monitor dargslan-cgroup report dargslan-cgroup containers -weight: 500;">pip -weight: 500;">install dargslan-cgroup-monitor dargslan-cgroup report dargslan-cgroup containers -weight: 500;">pip -weight: 500;">install dargslan-disk-benchmark dargslan-diskbench report -s 100 dargslan-diskbench latency -weight: 500;">pip -weight: 500;">install dargslan-disk-benchmark dargslan-diskbench report -s 100 dargslan-diskbench latency -weight: 500;">pip -weight: 500;">install dargslan-bandwidth-monitor dargslan-bw report -weight: 500;">pip -weight: 500;">install dargslan-bandwidth-monitor dargslan-bw report -weight: 500;">pip -weight: 500;">install dargslan-net-scanner dargslan-netscan scan 192.168.1.0/24 -weight: 500;">pip -weight: 500;">install dargslan-net-scanner dargslan-netscan scan 192.168.1.0/24 -weight: 500;">pip -weight: 500;">install dargslan-port-monitor dargslan-port report -weight: 500;">pip -weight: 500;">install dargslan-port-monitor dargslan-port report -weight: 500;">pip -weight: 500;">install dargslan-tcp-monitor dargslan-tcp report dargslan-tcp states dargslan-tcp per-ip -weight: 500;">pip -weight: 500;">install dargslan-tcp-monitor dargslan-tcp report dargslan-tcp states dargslan-tcp per-ip -weight: 500;">pip -weight: 500;">install dargslan-dns-check dargslan-dnscheck check example.com -weight: 500;">pip -weight: 500;">install dargslan-dns-check dargslan-dnscheck check example.com -weight: 500;">pip -weight: 500;">install dargslan-dns-resolver dargslan-dns compare 8.8.8.8 1.1.1.1 9.9.9.9 dargslan-dns dnssec google.com -weight: 500;">pip -weight: 500;">install dargslan-dns-resolver dargslan-dns compare 8.8.8.8 1.1.1.1 9.9.9.9 dargslan-dns dnssec google.com -weight: 500;">pip -weight: 500;">install dargslan-ip-geo dargslan-ipgeo lookup 8.8.8.8 -weight: 500;">pip -weight: 500;">install dargslan-ip-geo dargslan-ipgeo lookup 8.8.8.8 -weight: 500;">pip -weight: 500;">install dargslan-security-scan dargslan-secscan report -weight: 500;">pip -weight: 500;">install dargslan-security-scan dargslan-secscan report -weight: 500;">pip -weight: 500;">install dargslan-firewall-audit dargslan-fwaudit report -weight: 500;">pip -weight: 500;">install dargslan-firewall-audit dargslan-fwaudit report -weight: 500;">pip -weight: 500;">install dargslan-iptables-export dargslan-iptexp readable -o firewall-rules.txt dargslan-iptexp csv -o rules.csv -weight: 500;">pip -weight: 500;">install dargslan-iptables-export dargslan-iptexp readable -o firewall-rules.txt dargslan-iptexp csv -o rules.csv -weight: 500;">pip -weight: 500;">install dargslan-ssh-audit dargslan-sshaudit report -weight: 500;">pip -weight: 500;">install dargslan-ssh-audit dargslan-sshaudit report -weight: 500;">pip -weight: 500;">install dargslan-user-audit dargslan-useraudit report -weight: 500;">pip -weight: 500;">install dargslan-user-audit dargslan-useraudit report -weight: 500;">pip -weight: 500;">install dargslan-kernel-check dargslan-kernelchk report -weight: 500;">pip -weight: 500;">install dargslan-kernel-check dargslan-kernelchk report -weight: 500;">pip -weight: 500;">install dargslan-cert-manager dargslan-cert check example.com api.example.com dargslan-cert local -weight: 500;">pip -weight: 500;">install dargslan-cert-manager dargslan-cert check example.com api.example.com dargslan-cert local -weight: 500;">pip -weight: 500;">install dargslan-ssl-checker dargslan-sslchk check example.com -weight: 500;">pip -weight: 500;">install dargslan-ssl-checker dargslan-sslchk check example.com -weight: 500;">pip -weight: 500;">install dargslan--weight: 500;">git-audit dargslan-gitaudit scan /path/to/repo -weight: 500;">pip -weight: 500;">install dargslan--weight: 500;">git-audit dargslan-gitaudit scan /path/to/repo -weight: 500;">pip -weight: 500;">install dargslan-grub-check dargslan-grub report dargslan-grub kernels -weight: 500;">pip -weight: 500;">install dargslan-grub-check dargslan-grub report dargslan-grub kernels -weight: 500;">pip -weight: 500;">install dargslan--weight: 500;">service-monitor dargslan-svcmon report -weight: 500;">pip -weight: 500;">install dargslan--weight: 500;">service-monitor dargslan-svcmon report -weight: 500;">pip -weight: 500;">install dargslan-systemd-timer dargslan-timer report -weight: 500;">pip -weight: 500;">install dargslan-systemd-timer dargslan-timer report -weight: 500;">pip -weight: 500;">install dargslan-systemd-analyze dargslan-boottime blame dargslan-boottime chain -weight: 500;">pip -weight: 500;">install dargslan-systemd-analyze dargslan-boottime blame dargslan-boottime chain -weight: 500;">pip -weight: 500;">install dargslan-cron-audit dargslan-cronaudit report -weight: 500;">pip -weight: 500;">install dargslan-cron-audit dargslan-cronaudit report -weight: 500;">pip -weight: 500;">install dargslan-nginx-analyzer dargslan-nginx report -weight: 500;">pip -weight: 500;">install dargslan-nginx-analyzer dargslan-nginx report -weight: 500;">pip -weight: 500;">install dargslan-apache-analyzer dargslan-apache report -weight: 500;">pip -weight: 500;">install dargslan-apache-analyzer dargslan-apache report -weight: 500;">pip -weight: 500;">install dargslan-log-parser dargslan-logparse analyze /var/log/syslog -weight: 500;">pip -weight: 500;">install dargslan-log-parser dargslan-logparse analyze /var/log/syslog -weight: 500;">pip -weight: 500;">install dargslan-log-rotate dargslan-logrot report -weight: 500;">pip -weight: 500;">install dargslan-log-rotate dargslan-logrot report -weight: 500;">pip -weight: 500;">install dargslan-journald-analyzer dargslan-journal report dargslan-journal oom dargslan-journal security -weight: 500;">pip -weight: 500;">install dargslan-journald-analyzer dargslan-journal report dargslan-journal oom dargslan-journal security -weight: 500;">pip -weight: 500;">install dargslan-disk-cleaner dargslan-diskclean report -weight: 500;">pip -weight: 500;">install dargslan-disk-cleaner dargslan-diskclean report -weight: 500;">pip -weight: 500;">install dargslan-backup-monitor dargslan-backup report -weight: 500;">pip -weight: 500;">install dargslan-backup-monitor dargslan-backup report -weight: 500;">pip -weight: 500;">install dargslan-lvm-check dargslan-lvm report dargslan-lvm thin dargslan-lvm snapshots -weight: 500;">pip -weight: 500;">install dargslan-lvm-check dargslan-lvm report dargslan-lvm thin dargslan-lvm snapshots -weight: 500;">pip -weight: 500;">install dargslan-nfs-health dargslan-nfs report dargslan-nfs throughput -m /mnt/share -weight: 500;">pip -weight: 500;">install dargslan-nfs-health dargslan-nfs report dargslan-nfs throughput -m /mnt/share -weight: 500;">pip -weight: 500;">install dargslan--weight: 500;">docker-health dargslan--weight: 500;">docker report -weight: 500;">pip -weight: 500;">install dargslan--weight: 500;">docker-health dargslan--weight: 500;">docker report -weight: 500;">pip -weight: 500;">install dargslan-container-audit dargslan-contaudit report -weight: 500;">pip -weight: 500;">install dargslan-container-audit dargslan-contaudit report -weight: 500;">pip -weight: 500;">install dargslan-mysql-health dargslan-mysql report -weight: 500;">pip -weight: 500;">install dargslan-mysql-health dargslan-mysql report -weight: 500;">pip -weight: 500;">install dargslan-postgres-health dargslan-pghealth report -weight: 500;">pip -weight: 500;">install dargslan-postgres-health dargslan-pghealth report -weight: 500;">pip -weight: 500;">install dargslan-redis-health dargslan-redis report -weight: 500;">pip -weight: 500;">install dargslan-redis-health dargslan-redis report -weight: 500;">pip -weight: 500;">install dargslan-package-audit dargslan-pkgaudit report -weight: 500;">pip -weight: 500;">install dargslan-package-audit dargslan-pkgaudit report -weight: 500;">pip -weight: 500;">install dargslan-toolkit -weight: 500;">pip -weight: 500;">install dargslan-toolkit -weight: 500;">pip -weight: 500;">install dargslan-sysinfo dargslan-memory-profiler dargslan-disk-cleaner -weight: 500;">pip -weight: 500;">install dargslan-sysinfo dargslan-memory-profiler dargslan-disk-cleaner -weight: 500;">pip -weight: 500;">install dargslan-security-scan dargslan-user-audit dargslan-ssh-audit dargslan-kernel-check -weight: 500;">pip -weight: 500;">install dargslan-security-scan dargslan-user-audit dargslan-ssh-audit dargslan-kernel-check -weight: 500;">pip -weight: 500;">install dargslan--weight: 500;">docker-health dargslan-container-audit dargslan-cgroup-monitor -weight: 500;">pip -weight: 500;">install dargslan--weight: 500;">docker-health dargslan-container-audit dargslan-cgroup-monitor -weight: 500;">pip -weight: 500;">install dargslan-nginx-analyzer dargslan-cert-manager dargslan-log-parser -weight: 500;">pip -weight: 500;">install dargslan-nginx-analyzer dargslan-cert-manager dargslan-log-parser -weight: 500;">pip -weight: 500;">install dargslan-postgres-health dargslan-mysql-health dargslan-redis-health dargslan-disk-benchmark -weight: 500;">pip -weight: 500;">install dargslan-postgres-health dargslan-mysql-health dargslan-redis-health dargslan-disk-benchmark -weight: 500;">pip -weight: 500;">install dargslan-tcp-monitor dargslan-dns-resolver dargslan-net-scanner dargslan-port-monitor -weight: 500;">pip -weight: 500;">install dargslan-tcp-monitor dargslan-dns-resolver dargslan-net-scanner dargslan-port-monitor -weight: 500;">pip -weight: 500;">install dargslan-iptables-export dargslan--weight: 500;">git-audit dargslan-grub-check -weight: 500;">pip -weight: 500;">install dargslan-iptables-export dargslan--weight: 500;">git-audit dargslan-grub-check -weight: 500;">pip -weight: 500;">install dargslan-toolkit -weight: 500;">pip -weight: 500;">install dargslan-toolkit - What is using all the memory? - Which services failed? - Are there zombie processes? - Is swap pressure hurting performance? - Are my firewall rules sane? - Is SSH configured securely? - Lightweight - Fast to -weight: 500;">install - Easy to understand - Safe by default - no C extensions - no long dependency trees - no extra system packages - no “works on my machine” surprises - easier to -weight: 500;">install - easier to understand - easier to script - easier to trust - dargslan-disk-benchmark — which writes temporary test files for benchmarking - by a sysadmin on the terminal - inside a cron job - in compliance workflows - inside larger monitoring automation - dargslan-k8s-health — Kubernetes cluster health checker - dargslan-zfs-check — ZFS pool and dataset health monitor - dargslan-wireguard-audit — WireGuard VPN configuration auditor - All tools on PyPI: search for dargslan on pypi.org - Meta-package: dargslan-toolkit - Free cheat sheets: dargslan.com/cheat-sheets - Linux & DevOps eBooks: dargslan.com/books - Blog & tutorials: dargslan.com/blog

🏷️ Tags

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