Skip to content
This repository has been archived by the owner on Nov 27, 2022. It is now read-only.

Troubleshooting

Jump to bottom
accetto edited this page Oct 17, 2019 · 5 revisions

Updated: 2018-10-29

Table of content

VNC Viewer connection problem "Too many security failures"

This problem has been reported for containers running on QNAP's Container Station, when connecting with TigerVNC Viewer. The containers have been created from images older than version 1.1.3.

The problem has been caused by the VNC built-in blacklist policy, which was too tight. It has been mitigated by softening the policy:

BlacklistTimeout = 0
BlacklistThreshold = 20

Build arguments ARG_BLACKLIST_TIMEOUT/ARG_BLACKLIST_THRESHOLD and environment variables BLACKLIST_TIMEOUT/BLACKLIST_THRESHOLD allow further customization in environments, where tighter blacklisting policy is required. Their original default values have been:

BlacklistTimeout = 10
BlacklistThreshold = 5

TOC

Firefox tab crashes "Gah. Your tab just crashed."

Sometimes Firefox tab crashes with the message "Gah. Your tab just crashed.". It's only possible to "Close Tab" or "Restore This Tab". However, after restoring it crashes again. It happens only on some websites.

It is caused by a documented problem in Firefox. It can be mitigated by changing the following Firefox preferences:

browser.tabs.remote.autostart
browser.tabs.remote.autostart.2

Open the Firefox Configuration Editor by navigating to about:config and set the above preferences to false:

Firefox_preferences_browser_tabs

TOC

Clone this wiki locally