Need help with wordpress domain

Hello,
I have an ubuntu server hosting my wordpress in the var/www folder.
Say for example my wordpress domain is "website.com"
When I type "website.com" into the url address bar my site shows up fine.
If I click on a button within my website, like news the ip address of the server shows up.
It will be like xxx.xx.xx.xxx/news
How do I make it so it shows up as "website.com/news"

Thanks-

 

take a look at here yourdomain.com/wp-admin/options-general.php

 

Hey,
is that what domain mapping is?

 

I hate to add a new post to the thread but there is no option to edit my previous post above me...

Do I change both the blog address and url address?
So for both of them would I change it from http://xxx.xx.xx.xx to http://mydomainname.com ?
If I do this, will this correct my ip issue?
thanks

 

@above
Yup change both of them.

 

thank you it worked, I am really grateful to the both of you!

 

Glad that we helped