qbitorrent-nox 4.6.7 Change WebUI Port
I have a qbittorrent-nox installation that works great as it sits with the webui on port 8080. I have a signed cert and use HTTPS to connect to the webUI. The other day I thought, why don't I just move it over to 443 so I don't have to type the port anymore. When I did that I found qbittorrent-nox was no longer trying to open the port to listen on the machine. If I change it back to 8080 it works just fine. There are two places I change the port, one in the .service file using the --webui-port=443 and the qbittorrent.conf file WEBUI\Port=443. When they are set to 8080 and I restart the service, I can access the webui, when they are set to 443, I cannot. I used nmap to make sure the port was not open. There are no services on the machine using port 443. Below are excerpts or whole files from the system.
OS: Ubuntu 24.04.4 LTS x86_64
qBittorrent v4.6.7 Web UI
apt-cache policy qbittorrent-nox
qbittorrent-nox:
Installed: 1:4.6.7.99~202504281220-8155-91943e481~ubuntu24.04.1
Candidate: 1:4.6.7.99~202504281220-8155-91943e481~ubuntu24.04.1
Version table:
*** 1:4.6.7.99~202504281220-8155-91943e481~ubuntu24.04.1 500
500 https://ppa.launchpadcontent.net/qbittorrent-team/qbittorrent-stable/ubuntu noble/main amd64 Packages
100 /var/lib/dpkg/status
4.6.3-1build2 500
500 http://us.archive.ubuntu.com/ubuntu noble/universe amd64 Packages
/home/qbittorrent-nox/.config/qBittorrent/qBittorrent.conf
WebUI\Port=443
/etc/systemd/system/qBittorrent-nox.service
[Unit]
Description=qBittorrent Command Line Client
Wants=network-online.target
After=local-fs.target network-online.target nss-lookup.target
BindsTo=home-user-Done.mount
BindsTo=home-user-Temp.mount
[Service]
Type=forking
User=qbittorrent-nox
Group=qbittorrent-nox
UMask=007
ExecStart=/usr/bin/qbittorrent-nox -d --webui-port=443
Restart=on-failure
TimeoutStopSec=1800
[Install]
WantedBy=multi-user.target
sudo systemctl status qbittorrent-nox.service
● qbittorrent-nox.service - qBittorrent Command Line Client
Loaded: loaded (/etc/systemd/system/qbittorrent-nox.service; enabled; preset: enabled)
Active: active (running) since Fri 2026-07-03 04:16:35 PDT; 11h ago
Process: 1208 ExecStart=/usr/bin/qbittorrent-nox -d --webui-port=443 (code=exited, status=0/SUCCESS)
Main PID: 1271 (qbittorrent-nox)
Tasks: 10 (limit: 9277)
Memory: 3.4G (peak: 5.9G)
CPU: 5min 55.966s
CGroup: /system.slice/qbittorrent-nox.service
└─1271 /usr/bin/qbittorrent-nox -d --webui-port=443
Jul 03 04:16:30 leech systemd[1]: Starting qbittorrent-nox.service - qBittorrent Command Line Client...
Jul 03 04:16:35 leech systemd[1]: Started qbittorrent-nox.service - qBittorrent Command Line Client.
nmap 10.10.10.20
Starting Nmap 7.94SVN ( https://nmap.org ) at 2026-07-03 16:08 PDT
Nmap scan report for leech.home.lan (10.10.10.20)
Host is up (0.00023s latency).
Not shown: 997 closed tcp ports (conn-refused)
PORT STATE SERVICE
22/tcp open ssh
9090/tcp open zeus-admin
Nmap done: 1 IP address (1 host up) scanned in 0.13 seconds