SSH Config Generator
Generate SSH config Host entries from hostname, user, port, IdentityFile, and ProxyJump options.
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What is SSH Config Generator?
The SSH Config Generator is a browser-based builder for ~/.ssh/config files. Instead of memorizing option syntax, you fill in a form per server — alias, hostname, user, port, identity key, jump host, keepalives — and get a clean, valid config file you can copy or download.
Key Benefits
- Replace long ssh user@host -p 2222 -i key commands with a short alias
- Correct ProxyJump syntax for bastion-host access, generated for you
- Keepalive settings that prevent annoying idle disconnects
- Validation catches bad ports and aliases before they break your config
- Zero data collection — everything stays in your browser
Common Use Cases
- •Developers managing several VPS, staging, and production servers
- •DevOps teams standardizing SSH access patterns across a fleet
- •Reaching private-network servers through a bastion or jump host
- •Onboarding new team members with a copy-paste ready config
How to Use the SSH Config Generator
- Set global options: Optionally configure the Host * block: AddKeysToAgent, IdentitiesOnly, StrictHostKeyChecking accept-new, IPQoS, LogLevel, and HostKeyAlgorithms such as +ssh-rsa for legacy servers.
- Add your hosts: Click "Add host" for each server and fill in the alias, HostName (IP or domain), User, Port, and IdentityFile. Use ProxyJump to route through a bastion host.
- Tune keepalives: Set ServerAliveInterval (e.g. 60) and ServerAliveCountMax (e.g. 3) so idle SSH sessions are not dropped by firewalls or NAT gateways.
- Copy and apply: Copy the output or download it, save to ~/.ssh/config, then run chmod 600 ~/.ssh/config. Verify with ssh -G your-alias before connecting.
Key Features
- Unlimited host entries with alias, HostName, User, Port, and IdentityFile fields.
- ProxyJump bastion routing and per-host ForwardAgent and Compression toggles.
- ServerAliveInterval and ServerAliveCountMax keepalives that stop idle disconnects.
- Global Host * block with StrictHostKeyChecking, AddKeysToAgent, IPQoS, and LogLevel.
- Live port and alias validation with one-click copy or download of the config.
- Runs entirely in your browser — server names and key paths never leave your machine.
Frequently Asked Questions
Where do I save the generated SSH config file?
Save it as ~/.ssh/config on Linux or macOS (C:\Users\you\.ssh\config on Windows). Then run chmod 600 ~/.ssh/config — SSH refuses to use config files with loose permissions.
What does ProxyJump do?
ProxyJump routes your connection through another server (a bastion or jump host) before reaching the target. It replaces the older ProxyCommand syntax and is the modern way to reach private servers.
Why do my SSH sessions keep disconnecting?
Idle connections are often dropped by firewalls or NAT after 5-15 minutes. Add ServerAliveInterval 60 and ServerAliveCountMax 3 to send keepalive packets and hold the session open.
Does this tool upload my server details anywhere?
No. The generator runs entirely in your browser as static JavaScript. Your hostnames, usernames, ports, and key paths are never sent to any server.
How do I test my config without connecting?
Run ssh -G your-alias to print every option SSH will use for that host. It is a safe way to verify ports, users, and identity files resolve the way you expect.