How to Install, Configure, Customize and Troubleshoot Dropbox on Arch Linux

Dropbox is a popular file hosting and sync service used by over 700 million users globally. It lets you access your files from any device, share them securely and collaborate with others online.

While most Linux distros like Ubuntu have official Dropbox packages, Arch Linux does not provide one. But you can install Dropbox on Arch Linux easily in a few steps using the community maintained AUR (Arch User Repository) package.

In this comprehensive 3500+ words guide, I will show you how to:

• Install and configure Dropbox step-by-step on Arch Linux
• Generate SSL certificates for secure connectivity
• Optimize performance by integrating with file managers
• Resolve common sync and startup issues
• Encrypt your Dropbox folder for enhanced security
• Compare Dropbox to other self-hosted alternatives like Nextcloud

So let‘s get started with installing Dropbox on Arch Linux.

Step 1: Install Prerequisite Packages

Dropbox installation requires the following dependencies:

• Base-devel – This includes essential packages like make, gcc and other tools required to compile applications from source code.

• Git – To clone and build packages from the AUR, git is needed.

• Python>=2.7 – Dropbox client is written in Python. The python2 or python package must be present.

Run this pacman command to install the dependencies:

sudo pacman -S --needed base-devel git python2 

With the prerequisites fulfilled, we can now install the AUR package for Dropbox.

Step 2: Understanding the AUR and Building Packages

Before installing Dropbox from the Arch User Repository, let me briefly explain what the AUR is and how packages are built from source code.

The AUR is a community repository containing build and install scripts for applications unsupported by the official Arch repositories. It allows Arch users to build packages from source with makepkg and easily install with pacman.

Here is a quick rundown of the AUR install process:

1. User searches for a package recipe on the AUR site
2. The package build files are cloned locally using git
3. Dependencies required to build the program are installed
4. makepkg compiles the program from source code and creates a .pkg.tar.zst pacman package
5. The generated package is installed on the system with pacman

This simple yet powerful approach allows installing complex applications like Dropbox quite effortlessly. You do not need to compile or configure anything manually.

Now let us install Dropbox using this method.

Step 3: Installing Dropbox from the AUR

Search for dropbox-pacaur on the AUR site and you can see user-submitted build scripts to create Dropbox packages.

We will install the package as follows:

1. Clone the AUR git repo locally using a terminal:

git clone https://aur.archlinux.org/dropbox-pacaur.git

2. Enter the created repository directory:

cd dropbox-pacaur

3. Use makepkg to automatically build a package:

makepkg -si 

Here is what each makepkg parameter does:

• -s – Install missing dependencies needed for the build
• -i – Install the generated package using pacman

So makepkg will first install all libraries, compilers, tools required to create a binary Dropbox package. It will then compile the source code, package everything as a .pkg.tar.zst and install it.

After entering the command, review the terminal for errors. The build process can take several minutes to complete based on your hardware.

Once finished, Dropbox will be successfully installed on Arch! Easy enough huh?

Now let‘s get into configuring it.

Step 4: Setting Up Dropbox and Syncing Files

With Dropbox installed, launch it from the application menu or by running dropbox in your terminal.

On first launch, Dropbox will ask you to sign in with an existing account or create a new one:

Proceed with logging in. Next, it will prompt you to choose a directory location to be synced with Dropbox cloud.

The default location of ~/Dropbox is recommended. This folder will be automatically created and any files added to it will be synced.

After the folder is setup, Dropbox will run in the background continuously syncing files.

A blue Dropbox icon will appear in your system tray indicating active sync status.

You can now copy your important documents, photos, videos in the Dropbox folder and access them from any device instantly!

Some tips for seamless syncing:

• Add files you actively work on to autosync as backup
• Share folders easily with Share Dropbox link option by right-clicking them
• Install mobile apps to upload photos/videos directly from your phone
• Try Dropbox Passwords for securely storing passwords or sensitive info

That covers the basic Dropbox setup. Now let me show you some customization and security options.

Step 5: Advanced Configurations – SSL, LAN Sync and Proxy Setup

Dropbox connections are encrypted using secure SSL protocols. However during initial installation, it generates self-signed SSL certificates instead of valid ones issued by certificate authorities.

While self-signed certificates still encrypt traffic, you may see SSL verification warnings when linking with other services.

Here is how to generate CA-signed SSL certificates for Dropbox:

1. Install OpenSSL:

sudo pacman -S openssl

2. Generate Certificate Signing Request file with OpenSSL for your domain:

openssl req -new -newkey rsa:4096 -nodes -keyout dropbox.key -out dropbox.csr

3. Submit the .csr file to your SSL certificate provider to generate and issue signed certificate

4. Save the domain.crt and intermediate certificates from provider

5. Concatenate certificates into a .pem bundle:

cat domain.crt intermediate.crt > dropbox.pem 

6. Copy dropbox.pem file to Dropbox config directory:

mkdir ~/.dropbox-dist  
cp dropbox.pem ~/.dropbox-dist

Restart Dropbox and verify certificate is applied using browser console or OpenSSL s_client command.

This will ensure secure connectivity without pesky SSL warnings.

For faster LAN syncing, you can whitelist your private IP range so that Dropbox transfers files internally instead of going via external servers when devices are on same network.

To do this, add your IP subnet in whitelist_lan_networks array in the config file:

$HOME/.dropbox/config.dbx

[LANSync]    
whitelist_lan_networks = 192.168.1.0/24, 10.0.0.0/8

Finally, if you need to connect via a HTTP proxy:

http_proxy = http://192.168.0.1:3128
https_proxy = http://192.168.0.1:3129

And that covers some advanced configurations! With secure SSL connectivity setup, let‘s look at improving sync performance.

Step 6: Integrating Dropbox for Better Performance

While Dropbox conveniently autosyncs your files, its client does use significant memory and CPU depending on quantity of files being monitored.

Here are some tweaks to reduce resource usage:

1. Pause syncing when not needed – Dropbox can be paused when you don‘t need active syncing to free up system resources.

2. Disable unused features – Turn off camera uploads, LAN sync etc. if not required via Preferences modal.

3. Selective sync – Choose specific folders to sync instead of entire Dropbox if you don‘t need everything.

4. Use cli – Dropbox Cli uses almost 50% lower memory compared to GUI client.

Additionally, you can integrate Dropbox into Linux by mapping the Dropbox folder directly in your preferred file manager using GIO for better desktop integration:

[Desktop Entry]
Type=Application
Exec=gio mount davfs://dropbox.com/ %u

Now from file manager, you can directly open the WebDAV Dropbox share which will have much lower resource overhead compared to sync client while retaining access to files.

If you mainly need file backup rather than active sync, this method is great.

Okay so those were some tips to run Dropbox efficiently on Arch Linux systems without hogging resources.

Now let‘s take a look at solving common issues.

Step 7: Troubleshooting Problems – Startup Errors, Sync Issues, Remote Device Limits

In certain cases, you may encounter problems running Dropbox such as:

• Application failing to launch
• Sync errors or failed transfers
• Remote device limit reached errors

Here are fixes for some common Dropbox issues:

1. Dropbox error on startup

If Dropbox shows an error like ImportError: No module named stubout on launch, it indicates missing Python deps.

Fix: Reinstall the python2-gpg package:

sudo pacman -S python2-gpg

Now launch Dropbox again.

2. Continuous download errors

Prolonged sync errors when downloading files may indicate connectivity issues or throttled bandwidth.

Fix: Pause and resume sync in case the problem is temporary. Also check if you can access www.dropbox.com.

If website is blocked, a firewall or VPN might be interfering. Add an exception rule for Dropbox.

3. Authentication token expired

When remote devices get disconnected from your Dropbox account for extended periods, you may face token expiration errors.

Fix: Simply remove old device association from Account Security page and reconnect again.

4. Remote device limit reached

By default, Dropbox allows a maximum of 3 remote devices to be linked per account in free plan.

Fix: Upgrade to a paid Dropbox subscription like Dropbox Plus to increase this limit.

Hopefully the above tips will help you troubleshoot most common errors! Do leave a comment for any other issues.

Now let me show you how to selectively encrypt confidential data stored in your Dropbox.

Step 8: Encrypting Sensitive Dropbox Contents for Security

While Dropbox employs SSL during transfers and stores data encrypted on servers, certain sensitive information like financial documents may need added security.

You can choose to locally encrypt confidential Dropbox folders using these methods before syncing to cloud servers:

1. Using Encryptfs

Encryptfs is a stacked Linux filesystem that stores files encrypted within a container. Follow this approach:

• Install ecryptfs-utils package
• Mount ecryptfs on Dropbox folder with sensitive data (DRPBOX/Financials)
• Set passphrase so data gets encrypted before sync

2. With EncFS

EncFS provides encrypted overlay on top of directories with volume-based encryption.

• Install encfs package
• Create encrypted volume using encfs command
• Mount volume over specified dirs to encrypt contents

3. Veracrypt Containers

You can also store confidential files meant for sync within Veracrypt containers to benefit from AES-256 + cascaded encryption standards before uploading to Dropbox servers.

While the Dropbox client side encryption provided is secure enough in most cases, you can use these tips to additionally protect ultra-sensitive documents.

So that was a quick tutorial to enhance security by selectively encrypting Dropbox contents on your Arch Linux desktop.

Finally, let‘s discuss some alternatives and then conclude this guide.

Photo by Thomas Millot on Unsplash

Step 9: Comparison to Self-Hosted Options like Nextcloud and Syncthing

While Dropbox is an easy to use and stable cloud sync solution, it does have some limitations:

• Centralized proprietary architecture
• Paywall for advanced features beyond 2-3GB free space
• Privacy concerns due to third party storage
• File size limits for upload/download
• Lower transfer speeds compared to self-hosted

This is where open source self-hosted platforms like Nextcloud and Syncthing come in. They give you full data ownership while supporting easy multi-device file sync as well.

Nextcloud allows deploying on your own server with customizable functionality akin to Dropbox via apps and plugins. With WebDAV/SMB support, it can also directly integrate in desktop and mobile clients for native file management.

Syncthing uses P2P technology allowing your devices to connect directly without any middlemen to share data. By forming encrypted clusters, Syncthing nodes can sync securely at LAN speeds across internet via relay servers only when required.

Comparing architectures:

Feature	Dropbox	Nextcloud	Syncthing
Architecture	Proprietary, Centralized	Self-hosted, Customizable	Decentralized P2P
Open Source	No	Yes	Yes
Learning Curve	Low	Moderate	Low
Speed	Good	Excellent	Excellent
File Size Limits	Yes	No	No
Storage	Cloud	Self-hosted	Nodes
Privacy	?	Full control	Full control

So while Dropbox offers convenience, Nextcloud and Syncthing give you better privacy, speeds and control over data. Evaluate your priorities to pick the right solution for your use case!

And with that we conclude our guide on installing, customizing, troubleshooting and even encrypting Dropbox on Arch Linux!

Let me know if you have any other questions in the comments!