Virtual Helpme

Q. I've added a server to the DNS, but when I do an NS lookup it doesn't show up, unless a fully qualified domain name (FQDN) is used. How can I fix this.

A. There are many ways to fix this.

1) Quickest way is to add the host to your hosts file:

Edit C:\Windows\system32\drivers\etc\hosts file and add at the bottom:

10.10.10.11    servername

This however, leads to a lot of manual work if you want to do it on an organizational level, so the second method is probably better:

Q. My volume indicator is broken after the upgrade to Xubuntu 13.10. The sound still works.

A. This is a known bug, but can be easily fixed:

In a terminal window, run: 

sudo nano /usr/share/dbus-1/services/indicator-sound.service

Modify the line:

Exec=/usr/lib/x86_64-linux-gnu/indicator-sound/indicator-sound-service

to 

Exec=/usr/lib/indicator-sound-gtk2/indicator-sound-service

This happens quite often - a file-system hangs and doesn't respond to "reboot" commands. Here's how to force it to restart - on the command line, type the following:

echo 1 > /proc/sys/kernel/sysrq
echo b > /proc/sysrq-trigger

Q. I would like to install wallpapers from older releases of Ubuntu, how do I go about doing so?

A. The process is simple. You can run the following command on the terminal:

sudo apt-get install ubuntu-wallpapers-quetzal

Depending on the version you have (and wallpapers you'd like), replace quetzal with one of the following previous versions:

Q. Some of my Windows icons have disappeared and look like the default application icon. How can I fix this?

Here's an example of what it looks like:

A. This happens because the icon cache gets corrupted. There are several ways to fix this:

Q. I would like to redirect all but one directory in Apache. How do I do that?

A. The process is very simple, using mod_rewrite:

Let's say that "directory1" is what you would like to continue using and everything else is to be redirected:

RewriteCond $1 !^directory1
RewriteRule (.*) https://www.example.com/$1 [R=301,L]