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Posts Tagged ‘resolution’

What is this, text for ants? Part II

July 27th, 2013 No comments

Back to my shit-tastic eyesight for a moment.

Now that we have our Bluetooth devices installed, I can now sit in front of my projector, instead of in the closet, to fiddle with the font scaling.

We will want to go through the process of pulling up the System Settings again. Why don’t we refer to this image… again.

Computer Tab

The next step to to select Application Appearance, it looks like this.

System Settings Fonts

This will bring you into this menu where you will select Fonts from the toolbar on the left hand side.

Fonts

In the next screen you can change the font settings. There is a nice option in here that you can select to change all the fonts at once… spoiler, it is called “Adjust all fonts”. This is what I used to change the fonts to a size that my blind ass could see from the couch without squinting too much.

You can also force font DPI and select anti-aliasing, as you can see below. For the most part, this has made it possible for me to see what the hell is going on on my screen.

For my next adventure, I will be trying to get Netflix to work. Which I have heard is actually pretty simple.

Fonts

What is this, text for ants? Part I

July 26th, 2013 No comments

Unlike many people who may be installing a version of Linux, I am doing so on a machine that has a projector with a 92″ screen as it’s main display.

So, upon initial installation of Kubuntu, I couldn’t see ANY of the text on the desktop, it was itty bitty.

Font for Ants

I can’t even read this standing inches away.

In order to fix this, I had to hook up an additional display.

Thankfully, living in a house with a computer guru, I had many to choose from.

In order to get my secondary display to appear, I had to first plug it into the display port on the machine I am using. I then had to turn off the current display (projector) and reboot the machine so that it would initialize the use of my new monitor.

Sounds easy enough, and it was, albeit with some gentle guidance from Jake B.

From here, I am able to properly configure my display.

The thing I am enjoying most about Kubuntu so far is that it is very user friendly. It seems almost intuitive where each setting can be found in menus.

So these are the steps I followed to change my display configuration.

I went into Menu > Computer > System Settings

Computer Tab

Check out my sweet Photoshop Skills. I may have taken this picture with a potato.

Once you get into the System Settings folder, you have the option to change a lot of things. For example, your display resolution.

System Settings

Looks a lot like the OSX System Preferences layout.

Now that you are in this menu, you will want to select Display and Monitor from the options. Here you can set your resolution, monitor priority, mirroring, and multiple displays. Since I will only be using this display on the Projector, I ensured that the resolution was set so that I could read the text properly on the Projector Screen. Before disabling my secondary monitor, I also set up my Bluetooth keyboard and mouse, which I will talk about in another post.

This process only took a few moments. I will still have to tweak the font scaling, as I have shit-tastic eyesite.

DNS Not Satisfactory

September 25th, 2009 No comments

While trying to connect to a remote webserver via SSH last night, I found that my machine refused to resolve the hostname to an IP address. I couldn’t ping the server either, but could view a webpage hosted on it. Now this was a new one on me – I figured that my machine was caching a bad DNS record for the webserver, and couldn’t connect because the server’s IP had since changed. That didn’t really explain why I was able to access the server from a webbrowser, but I ran with it. So how do you refresh your DNS cache in Linux? It’s easy to do in Windows, but the Goog and the Bing let me down spectacularly on this issue.

This morning, I tried to connect via SSH from my school network, and couldn’t get a connection there either. This reinforced the idea that a local DNS cache might have an outdated record in it, because at school, I was using a different nameserver than at home, and a whole 12 hours had elapsed. Out of theories, and lacking a method to refresh my local DNS cache, I hit the #debian channel on IRC for some guidance. Unlike my last two trips to this channel, I got help from a number of people within minutes (must be a timezone thing), and found out that unless I manually installed one, Debian does not maintain a DNS cache. Well, there goes that idea.

So where was I getting my DNS lookup service? A quick look at my /etc/resolv.conf file showed that the only entry in it was 192.168.1.1, which is the IP of my home router. The file also has a huge warning banner that claims that any changes will be overwritten by the operating system. Makes sense, as when I connect to a new network, I presumably get DNS resolution from their router, which may have a different IP address than mine. The guys on IRC instructed me to try to connect to the server with it’s IP address instead of it’s hostname, thereby taking the DNS resolution at the router out of the picture. This worked just fine.

They then instructed me to add a line to the file with the IP address of the nameserver that the router is using. In the case of our home network, we use OpenDNS, a local company with static servers. I did so, and could immediately resolve the IP of my remote server, and obtain an SSH connection to it.

Well fine, my problem is solved by bypassing DNS resolution at the router, but it still doesn’t explain what’s going on here. Why, if DNS resolution was failing at the router level (presumably because the router maintains some kind of DNS cache), did it work for my webbrowser, but not the for ssh, scp, or ping commands? Don’t they all resolve nameservers in the same way? Further, if it was the router cache that had a bad record in it, why did the problem also manifest itself at school, where the router is taken entirely out of the picture?

Further, will the file actually be overwritten by the OS the next time I connect to a different wireless network? If so, will my manual entry be erased, and will the problem return? Time will tell. Something smells fishy here, and it all points to the fact that my machine is in fact retaining a local DNS cache. How else can I explain away the problem manifesting itself on the school network? Further, even if I do have a local cache that is corrupted or contains a bad record, why did Iceweasel bypass it and resolve the address of the webserver at the router level (thereby allowing it to connect, even though the ssh, scp, and ping commands could not)?

LINUX!!11