Firefox 57+ (Quantum) and Vertical Tabs

As you probably noticed with Firefox 57 codenamed Quantum a lot has changed - plenty of extensions are now not working. However one of the things I found particularly annoying was that while I was using the vertical arrangement of tabs using extension such as Vertical Tabs Reloaded (Tree Style Tabs doesn't seem to work atm) the tabs were effectively doubled - one on top and the other one showed on the side - definitely not as intended. Solution? Open the profiles directory (if not sure where Read more [...]

X2Go “stdin: is not a tty” error on login

Apparently from time to time the contents of /root/.profile are for some reason changed within the Ubuntu 16.04 installation. The default looks like this: # ~/.profile: executed by Bourne-compatible login shells. if [ "$BASH" ]; then if [ -f ~/.bashrc ]; then . ~/.bashrc fi fi mesg n Which doesn't work well together with X2Go interface. Basically you need to amend the last line "mesg n" with following: tty -s && mesg n Reboot the machine and profit 🙂 Read more [...]

How to deal with X2Go Client error “Unable to create SSH tunnel for X2Go session (NX) startup”

Today I had a weird problem – my X2Go Client just kept saying “Unable to create SSH tunnel for X2Go session (NX) startup”. I tried to reboot remote server but no luck. What is the solution?

It’s rather easy – reboot the local computer you are trying to connect from (yes the PC you are sitting in front of), after that it should be fine.

Setup: Ubuntu x64 server 14.04.3 LTS running XFCE as GUI. The client I was connecting from: Windows 7 Pro x64.

How to show real visitor’s IP address after installing CloudFlare protection while running Apache web server on Debian 7 or Debian 8

Well it's fairly self explanatory - you are running any service that needs customer's real IP address and now you have a problem - it shows only the proxy address of CloudFlare, this is especially painful when you do for example access restrictions (IP restrictions) via .htaccess file. So how to fix this on Debian 7? Btw. the # means you need to be root just fyi... 1) Check for dependencies: # apt-get install libtool apache2-threaded-dev 2) wget the necessary files: # wget https://www.cloudflare.com/static/misc/mod_cloudflare/mod_cloudflare.c (Just Read more [...]