GlyNet Shell (gsh)

GlyNet Shell (gsh) is a lightweight terminal tool designed to simplify SSH management across multiple servers, especially when using firewall restrictions and jump servers.

The idea started when I deployed CSF firewall on all servers and restricted SSH access to specific trusted IP ranges. Since I connect from multiple platforms and most free SSH managers don’t properly sync configurations, I built gsh.

gsh helps you centralize SSH management through a single intermediary server (jump server / bastion host model).

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✨ Features

• Simple SSH host management (add / update / remove)

• Auto SSH config management

• Optional hostname → fresh IP resolving before connect (useful for DNS/CDN / Anycast)

• Secure backup of:

  • ~/.ssh
  • ~/bin

• Encrypted ZIP backups

• Optional Telegram backup upload

• Designed for jump server workflows

• Zero database / zero daemon — pure bash

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📦 Installation

One-Line Install (Recommended)

curl -fsSL https://raw.githubusercontent.com/s7net/GlyNet-Shell/refs/heads/main/install-gsh.sh | bash

or

wget -qO- https://raw.githubusercontent.com/s7net/GlyNet-Shell/refs/heads/main/install-gsh.sh | bash

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What Installer Does

If you are root:

/usr/local/bin/gsh

If you are normal user:

~/bin/gsh

Also installs:

~/.ssh/.gsh.env

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⚙️ Configuration

Main config file:

~/.ssh/.gsh.env

You can edit values manually or run:

gsh init

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🚀 Usage

Add New Server

gsh add server-name

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Connect to Server

gsh server-name

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Update Server

gsh update server-name

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Remove Server

gsh rm server-name

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List Servers

gsh ls

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Sort SSH Config

gsh sort

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💾 Backup & Restore

Create Backup

gsh backup

Creates encrypted backup of:

• SSH keys
• SSH config
• gsh config
• bin tools

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Restore Backup

gsh restore backup.zip

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🔐 Security Notes

• .gsh.env stored with chmod 600
• .ssh enforced as 700
• Backup ZIP supports password encryption
• No telemetry
• No background services

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🧠 Recommended Use Case

Perfect for:

• Jump server environments
• Bastion SSH architectures
• Teams managing multiple nodes
• Users with restricted firewall SSH access
• DevOps / Infra engineers

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🛠 Requirements

Usually preinstalled on most Linux systems:

• bash
• ssh
• curl or wget
• zip or 7z (for backup)

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📁 Project Files

Main binary:

gsh

Default config template:

.gsh.env

Installer:

install-gsh.sh

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❤️ Why gsh Exists

Because SSH management should be:

• Simple
• Syncable
• Scriptable
• Portable
• Secure