Hey there! I’ve helped many folks deploy Shiny apps to offline servers, so let’s walk through your two key questions clearly.

1. Configuring Access Address for Your Shiny App #

First, let’s make sure your Shiny Server is set up correctly and accessible:

• Check Shiny Server status
  Start by verifying the service is running (and set to start on boot). Run these commands in your server’s terminal:

  # Check current status
  sudo systemctl status shiny-server
  
  # If it's not running, start it
  sudo systemctl start shiny-server
  
  # Set to auto-start on server reboot
  sudo systemctl enable shiny-server
  

• Default Access Path
  Shiny Server uses port 3838 by default. If you placed your app.R directly in /srv/shiny-server/ (no subfolder), your app will be accessible at:
  http://<your-server-intranet-IP>:3838/

  If you put app.R inside a subfolder (e.g., /srv/shiny-server/myapp/app.R), the address becomes:
  http://<your-server-intranet-IP>:3838/myapp

• Customize Port or Path (Optional)
  If you want to use a different port (like port 80 for standard HTTP) or a custom URL path:

  1. Edit the Shiny Server config file with sudo access:

     sudo nano /etc/shiny-server/shiny-server.conf
     

  2. To change the port, find the line listen 3838; and replace 3838 with your desired port (e.g., listen 80;).
  3. To add a custom path (e.g., /myapp pointing to your app folder), add this block to the config:

     location /myapp {
       site_dir /srv/shiny-server/myapp;
       log_dir /var/log/shiny-server;
       directory_index on;
     }
     

  4. Save the file (Ctrl+O, Enter, then Ctrl+X in nano) and restart Shiny Server:

     sudo systemctl restart shiny-server
     

2. Installing R Packages Offline #

Since your server has no internet, you’ll need to pre-download packages on a connected machine and transfer them over:

• Step 1: Download Packages (on a machine with internet)
  Open R/RStudio on a connected computer and download all required packages (including dependencies!) to a local folder. For example:

  # List all packages your app uses (e.g., shiny, ggplot2, dplyr)
  required_pkgs <- c("shiny", "ggplot2", "dplyr")
  
  # Download source packages (works across Linux/macOS/Windows)
  download.packages(
    pkgs = required_pkgs,
    destdir = "./offline_r_packages",
    type = "source",
    dependencies = TRUE  # Critical: downloads all nested dependencies
  )
  

  Pro tip: If you’re unsure of all dependencies, run devtools::install_deps(path = "path/to/your/app", dependencies = TRUE) on the connected machine first—it’ll list every package your app needs.

• Step 2: Transfer Packages to the Intranet Server
  Use a USB drive, internal file share, or any offline transfer tool to copy the offline_r_packages folder to your server (e.g., to /home/your_username/offline_r_packages).

• Step 3: Install Packages on the Server
  Open R on the server and run this command to install from the local files:

  # Path to your transferred package folder
  pkg_folder <- "/home/your_username/offline_r_packages"
  
  # Install all packages (source files end with .tar.gz)
  install.packages(
    pkgs = list.files(pkg_folder, pattern = "\\.tar\\.gz$", full.names = TRUE),
    repos = NULL,
    type = "source",
    dependencies = TRUE
  )
  

  Verify installation by loading a package: library(shiny)—if no error pops up, you’re good to go!

内容的提问来源于stack exchange，提问作者mehakVT