Technology Insights

Change vi Defaults To Not Display Line Numbers When Editing Files On Linux

Recently I was contracted to do some work for a new client that had around 25 CentOS Linux and Ubuntu Linux servers. The client needed various system administration tasks completed such as updating the servers, modifying a couple scripts that performed automated tasks, and a couple other basic tasks. I typically use vi to modify scripts or text files on Linux servers so when I started to perform my tasks I started getting annoyed as the vi default configuration included the line numbers which makes it a pain to copy/paste from the files you are editing. You can obviously turn off the line number display by typing “:” followed by “set nonu” (both without the quotes) however that does get old. Use the information below to change the default vi configuration so line numbers no longer display by default.

Technology Insights

SkypeIn Call Blocking: Block Incoming Calls From Specific Numbers In Skype

It is really easy to block unwanted calls to your SkypeIn number using your Skype client. There are numerous ways to block calls into Skype such as blocking one specific number, blocking all hidden numbers, or even not allowing any calls except for people in your contact list. I use my Skype number for business so the last method is not an option for me since I receive calls from numbers I don’t recognize all the time so I personally use a combination of the first two methods. By default I block all hidden numbers and then when I receive more than one call from an unwanted number I block that specific number. Below I describe how to perform all three methods so you can choose how you want to block calls into your SkypeIn number or if you don’t want to block any calls.

Technology Insights

Add a Delay to a Dial Up Modem Before It Dials Out

I haven’t configured a dial up modem in quite awhile so I forgot a number of the tips and tricks that I used to use back in the good ole modem shotgun days, etc. I was working to get a dial up connection working properly through an SPA-2000 over a VoIP connection. In doing so I was thinking that the modem was actually dialing out to quickly and it might help the situation if I added a delay before the modem actually dialed out. Below I describe how to add a delay to a dial up networking connection on Windows XP.

Technology Insights

Create a WordPress Template to List All Tags on a Single Page: wp_tag_cloud

Previously I created an article about listing all WordPress tags on a single page however some things have changed since that time. When going back and looking at the article it looks like some of the tags have changed since that time. I do have a WordPress plugin installed called Simple Tags so take that into account when using the below directions. This plugin is recommended to provide you more control over your tags. The easiest way to display all tags is to create a blank WP page and assign a template to it that specifically lists all tags. Follow the below instructions and you will have a page listing all of your tags in no time at all.

  1. Add a Template Page:Add a new page called tag-cloud.php to your server in the theme directory of your WordPress installation. The location of the new file will be wordpress-root/wp-content/themes/theme-name/. You can copy the contents of the page.php file from the default theme or your theme and then make the following two modifications.