Linux Consulting  

Login or Register  

If you wish to contribute an article, please login or register.

Who's Online  

We have 36 guests online

"550 5.1.1 User unknown" Error when Sending to a Distribution Group

Ifexchange2010 you receive an error when sending to a newly created distribution group: "550 5.1.1 User unknown", you have to take the following steps to resolve it:

Monday, 03 March 2014 10:58
 

Create an empty test file in Linux

Q. How can I create an empty test file? 

A. There are several ways, including dd command, but this one is the quickest: 

fallocate -l 10G test.file

Monday, 28 October 2013 14:24
   

Specify search domains for Windows DNS

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:

Wednesday, 23 October 2013 14:23
   

Volume indicator not working after xubuntu 13.10 upgrade

xubuntu-logo-icon-largeQ. 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

Friday, 18 October 2013 13:00
   

Force Linux reboot

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

Thursday, 03 October 2013 19:44
   

How to install wallpapers from older ubuntu releases?

ubuntu-logoQ. 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:

Tuesday, 01 October 2013 10:34
   

Broken or missing icons in Windows 7/8

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:

windows 7 broken icon

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

Wednesday, 01 May 2013 11:18
   

Page 1 of 17

<< Start < Prev 1 2 3 4 5 6 Next > End >>
   
Copyright © 1999 - 2014 Virtual Helpme | t | Original Template: Allrounder