Tip

For the last few weeks, I've noticed weird red dots/lines or similar marks on my Kubuntu screen. I'd attributed them to a graphics issue that I'd recently sorted out, particularly because I was mainly noticing these marks when resuming the system from sleep mode. Turns out I was wrong. Very wrong.

So, I am often SSH'd into a remote server from my Kubuntu desktop. I also rarely switch off my desktop and prefer to just hit sleep instead. One of the things that can be annoying when I resume the desktop is that the previous SSH session is now unresponsive/frozen as SSH believes that it is still connected to the remote server while the server has given up on the old session long ago. No amount of CTRL + C or CTRL + Z banging is going to terminate the session which can take an inordinately long wait to time out.

This has happened to me on a number of occasions where I've found that my system audio only plays when I switch to a different tty. I don't know exactly how to duplicate the issue . But essentially, if I switch from my Kubuntu 14.10 KDE desktop to a different tty (using something like CtrlAltF5) and then switch back to the KDE tty, I find that I can hear no audio. However, if I switch again to the command-line tty, I can hear that audio that ought to have been playing in KDE. Rather weird, huh?

I ran into the following error while running a script that was performing backups of files via rsync over ssh.

error: ssh: connect to host foo.example.com port 22: Connection refused rsync: connection unexpectedly closed (0 bytes received so far) [sender] rsync error: unexplained error (code 255) at io.c(601) [sender=3.0.7]

I ran into the following spiel when I attempted to SSH to a host just now:

Setting the timezone of an Ubuntu (14.04, Trusty) or Debian (7, Wheezy) server from the command-line is simple. Just run dpkg-reconfigure tzdata and follow the on-screen prompts. However, if you are running an unattended installation, you might want to avoid interactive prompts and just gets the job done. To do this, simply run

$ sudo ln -sf /usr/share/zoneinfo/America/Anchorage /etc/localtime

Browse through /usr/share/zoneinfo/ to locate your timezone.

Let's assume that we have some sample text like the following:

Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

The tag is an HTML tag use to indicate keyboard input. Adding the following to your CSS file will provide a rich effect to its display:

I had an odd issue just now when using Gvim. Usually, backspacing when in insert mode (i:set backspace=indent,eol,start

To fix this permanently, add

set backspace=indent,eol,start

to GVim's _vimrc file (which is usually located at C:\Program Files (x86)\Vim\_vi
mrc).

You might want to do this when running the editor as an administrator.

Running a program in "privileged" mode (i.e., as an administrator) is as simple as pressing the START button, finding the program, right-clicking its name, and choosing Run as administrator. (You can similarly also choose to Run as different user, but to get this option, you'll need to press SHIFT before the right click.) This should bring up Windows' pop-up asking you to allow the program to be run as administrator where you click Yes and Robert is your uncle.