Tools for Modern DevOps
Automate, optimize, and accelerate your Linux, cloud, and IT workflow.
All tools below are free, browser-based, and secure.
Automate Configurations. Standardize Best Practices.
ServerSpan offers a suite of purpose-built online generators for system admins, DevOps, and IT professionals. From provisioning with cloud-init to tuning sysctl and hardening firewalls, our utilities encode best practices and eliminate error-prone manual work. Save time, reduce risk, and accelerate deployments—without vendor lock-in or registration.
- Cloud-init YAML: Fast user-data for cloud servers.
- sysctl.conf: Kernel tuning templates for performance & security.
- Firewall Rules: Robust, production-ready rule sets.
- RAID Calculator: Capacity, redundancy, speed at a glance.
- IMAPSync: Command builder for seamless mailbox migrations.
- Cronjob Generator: 25+ ready-to-use schedules.
- SPF & DMARC: Bulletproof DNS for mail deliverability.
- Certbot Syntax: One-click SSL automation with Let's Encrypt.
- Cisco Cheatsheet: Networking reference, fast.
- More: Bash aliases, reverse proxy configs, and more to come.
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Featured Tools
Our Complete Toolbox
Cloud-Init YAML Generator
Generate cloud-init user-data files tailored to your infrastructure.
Launch Tool
Subnet Calc. & VLAN Planner
Calculate optimal subnetting, plan VLANs and generate configs.
Launch Tool
WireGuard VPN Config Generator
Generate server + client WireGuard configs with NAT and routing defaults.
Launch Tool
BGP Configuration Generator
Generate BGP conf. for IOS, EOS, JUNOS, MTK and BIRD 2 with advanced features.
Launch Tool
SSH Hardening Generator
Generate hardened sshd_config snippets with firewall and fail2ban options.
Launch Tool
RAID Configuration Calculator
RAID Calculator with Usable Size, Fault Tolerance & Speed Explanations
Launch Tool
WebServer Reverse-Proxy Generator
Ultimate Reverse Proxy Config Generator for NGINX/Apache2
Launch Tool
BIND DNS named.conf Generator
Generate secure BIND DNS server configurations with templates.
Launch Tool