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NZBGet

NZBGet

High-performance Usenet downloader with web interface

NZBGet is a binary downloader that retrieves files from Usenet based on NZB files. Written in C++, NZBGet is renowned for its extraordinary performance and efficiency—using minimal CPU and memory while maximizing download speeds. On QuickBox, NZBGet runs as a per-user daemon with its binary at /opt/username/NZBGet/nzbget and a web interface published through the nginx reverse proxy.

Per-User Binary

Dedicated binary in /opt/<user>/NZBGet with user-owned permissions

Reverse-Proxy Ready

nginx location /username/nzbget with HTTP auth backed by htpasswd

Post-Processing

Built-in scripts copied to /home/<user>/.config/NZBGet/scripts

TLS Artifacts

Self-signed certs and CA bundle created under /home/<user>/.ssl

Usenet Provider Required

NZBGet requires a Usenet provider subscription and an indexer to obtain NZB files. Configure your provider credentials in the NZBGet web interface after installation.


Installation

Have your Usenet provider (news server) and indexer credentials ready — you enter them in the NZBGet web interface after installation.

Install from the Dashboard

Open App Dashboard → Package Management (/dashboard?mode=packages), find NZBGet in the catalog (browse Download Clients or search), and click Install. The dashboard streams the install log live and NZBGet appears in your Application Control panel when it finishes. Reinstall, Update, and Remove are available from the same panel.

What you see and can manage is gated by your account: admins manage any user’s apps; regular users manage their own. For the full package flow see App Management.

Install from the CLI (automation)

The CLI runs the same install and is suited to automation and scripting:

qb install nzbget -u username
Command
qb install nzbget -u username
Description
Install NZBGet for the specified user (per-user binary + config)
Command
qb reinstall nzbget -u username
Description
Reinstall while preserving config and nginx/service wiring
Command
qb update nzbget -u username
Description
Update NZBGet binary from nzbgetcom/nzbget release feed
Command
qb remove nzbget -u username
Description
Stop service, clean files, and remove DB entries

CLI Options

-u, --usernameRequired

Target QuickBox username for install/remove/update operations


Directory Layout

/opt/username/NZBGet
nzbget# NZBGet binary executable
nzbget.conf# Default configuration template
scripts/# Built-in post-processing scripts
/home/username/.config/NZBGet
nzbget.conf# User configuration (auto-written with QuickBox defaults)
nzbget.log# Application log
downloads/# MainDir: active downloads
completed/# DestDir: finished files
intermediate/# InterDir: temp staging
queue/# QueueDir: NZB queue data
tmp/# TempDir: temporary working files
nzb/# NzbDir: watch folder
scripts/# ScriptDir: post-processing scripts (built-ins copied here)
nzbget.lock# LockFile
/home/username/.ssl
cacert.pem# CA bundle fetched from curl.se
username-selfsigned.crt# Self-signed cert generated per user
username-selfsigned.key# TLS key; permissions 750

Network & Access

NZBGet binds to localhost on auto-assigned Control/Secure ports (defaults start at 6789/6791 if free). QuickBox publishes the UI through nginx at:

https://yourserver.com/username/nzbget/

Auth: nginx uses Basic Auth with /etc/htpasswd.d/htpasswd.username (your QuickBox credentials). Upstream NZBGet control credentials are set to the same username/password and bound to 127.0.0.1.

Proxy details

Traffic terminates at nginx over HTTPS, then proxies to http://127.0.0.1:<assigned_port>/username/nzbget (port is assigned during install and written to the service/nginx configs). The self-signed SecurePort is present but not used by the reverse proxy.

First Login

After installation, access the web interface to configure your Usenet provider (news servers), indexers, and download categories.


Services

NZBGet uses a templated systemd unit (nzbget@.service) running as a forking daemon:

# Check status systemctl status nzbget@username # View logs journalctl -u nzbget@username -f # Restart service systemctl restart nzbget@username # Reload configuration systemctl reload nzbget@username

The service starts NZBGet as a forking daemon and restarts it automatically on failure.

Logs

Runtime logs live at /home/username/.config/NZBGet/nzbget.log.


FileBot Post-Processing (courtesy setup)

QuickBox can wire NZBGet to FileBot during FileBot installation:

  1. Install FileBot with the NZBGet option:
qb install filebot -u username -o nzbget -mp /path/to/media
  1. QuickBox drops ~/.config/NZBGet/scripts/nzbget-postprocess.sh and rewrites it with your username and media path.
  2. In NZBGet → Settings → Extension Scripts, add nzbget-postprocess.sh and enable it for relevant categories.
What the script does

Invokes /usr/local/bin/username/filebot with the AMC preset, duplicates to your media path, skips conflicts, and honors /home/username/.filebot/.excludes.


Integrations

NZBGet Integrations

NZBGet works seamlessly with media automation tools.

Post-Processing


Configuration

You can connect *arr apps directly to NZBGet by providing the following details in their download client settings:

Setting
Host
Value
localhost
Setting
Port
Value
443
Setting
Use SSL
Value
Enabled
Setting
URL Base
Value
/username/nzbget/
Setting
Username
Value
QuickBox username
Setting
Password
Value
QuickBox user password
Not seeing the URL Base option?

If you are not seeing the URL Base field, click the cog icon to enable advanced settings in the download client configuration.


Troubleshooting

Downloads / browse index page not loading

QuickBox builds a per-user nginx fancyindex view of each user’s completed downloads, and NZBGet’s completed folder is included in it. This browse index is a single shared per-user config — /etc/nginx/software/username.dlindex.conf — that covers every download client that user has installed, not NZBGet alone. It has no service of its own.

Symptoms

  • The per-user downloads / file-browse index page fails to load — returns a 502 or 404, shows blank, or errors — while the rest of the dashboard works normally
  • Only the directory-listing page is affected; NZBGet itself keeps running

Resolution

  • Rebuild for one user: qb fix dlindex -u username
  • Rebuild for all users: qb fix dlindex
  • The fix re-renders /etc/nginx/software/username.dlindex.conf, runs nginx -t, and reloads nginx only on a successful test
  • See the qb fix reference: /docs/cli-reference/fix#fix-dlindex

The same fix applies to the browse page for every download client — see the Download Clients overview.


Best Practices

Do

  • Configure multiple news servers for redundancy and completion.
  • Use SSL connections to your Usenet provider.
  • Keep categories aligned with your `*arr` apps and FileBot scripts.
  • Use qb update nzbget to pull the latest nzbgetcom/nzbget binary.

Don't

  • Do not manually edit systemd or nginx files—use qb commands.
  • Do not store completed downloads in the intermediate folder.

Additional Resources

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