reverse proxy nginx noVNC problem since V5
- Thread starter gottlieb
- Start date
I checked on my server and the weird thing is 'java -version' says that java hasn't been installed at all.
Should I install java although novnc works just fine when I login to proxmox via my IP.
I have the same problem.
But after 20 sec window automatically refreshing and all works fine.
But after 20 sec window automatically refreshing and all works fine.
Last edited:
i tested this extensively and did not found the culprit, it seems that the combination of nginx reverse proxy, our api server, and a new novnc has this problem
on my setup i triggered this in about 1/20 cases, so not very often
i tested with apache as reverse proxy without issues (at least a hundred tries did not trigger this problem here), as well as a cheap proxy with socat did not show this issue
i am still not sure what the problem here is exactly (except that is has to do with the websocket), and since i cannot reliably trigger this and neither novnc nor nginx logs are really useful, debugging this is very time consuming
if anyone has further insight in what goes wrong here, a hint would be appreciated
on my setup i triggered this in about 1/20 cases, so not very often
i tested with apache as reverse proxy without issues (at least a hundred tries did not trigger this problem here), as well as a cheap proxy with socat did not show this issue
i am still not sure what the problem here is exactly (except that is has to do with the websocket), and since i cannot reliably trigger this and neither novnc nor nginx logs are really useful, debugging this is very time consuming
if anyone has further insight in what goes wrong here, a hint would be appreciated
Dear all, I have the problem with nginx. Can you post your good apache config?
This link is bad for pve 5.1 https://pve.proxmox.com/wiki/Web_Interface_Via_Nginx_Proxy
Install wildcard certificate on your Proxmox nodes (letsencrpyt providing it now), and use HAProxy.
I already have a wildcard certificate. My nginx config works perfectly for accessing all resources including xterm.js, but NoVNC (like the posters before me) is not consistent. I am able to connect 100% of the time but maybe 5% of the time the actual console loads.
Switching up my entire server config isn't really viable. Granted I know I'm not a high priority customer since I'm not a subscriber, but this appears to affect a lot of others. I'll happily provide any logs as needed.
There is no solution for this nginx + novnc issue. So, switching to HAProxy (if you need noVNC console) is a reasonable solution.
Not hard to do it, you can find an example config here: https://pastebin.com/QLSNbr6e
Not hard to do it, you can find an example config here: https://pastebin.com/QLSNbr6e
Downgrading the novnc to the 4.x version seems to solve this issue, so i don't think there's any issue with the nginx, vncproxy or vncwebsocket. It seems to rest entierly on something added in the new novnc code.
We work on fix on this, please subscribe to https://bugzilla.proxmox.com/show_bug.cgi?id=1684 to receive notifications.
You can see the available versions with the command:
apt-cache policy novnc-pve
You can install any preferred version with:
apt-get install novnc-pve=<version>
echo novnc-pve hold|dpkg --set-selections
