One of the best things with Ubuntu or any flavour of Linux is that you can basically make it do whatever you want it to as long as you put the time and effort in. There was a recurring argument a couple of years ago between myself and a close friend regarding running a Squid cache server on a clients linux server. I had always argued that you know running a centralised Squid server is really dependent on a lot of traffic going through it on a regular basis to build up the cache reserve to make it a useful investment.

 

However it didn’t matter how much I argued it was never changed, and we just had to put up with it. On a couple occasions I have seen a Squid server slow down the browsing speed on local machines however I have now tested this rigorously on a server within my own personal network to see if it is a worthwhile investment of time and what I found out was that yes for a larger scale distribution this works. You have a lot more traffic going through the server for the Squid system to capture and therefore a much greater amount of data that can be used for calls after the capture time.

 

Now what I did find out is that instead of caching the pages you access, why not just reduce the resolution time and therefore cut down on at least one of the lengthy time variables it takes to launch a page in your own browser.

 

To be able to do this on Linux you will need to get dnsmasq installed.

 

• sudo apt-get install dnsmasq

 

Then you will need to configure dnsmasq correctly. The most easiest way to do this will be using the terminal and your favourite editor. My command would look something like this:

 

• sudo nano /etc/dnsmasq.conf

 

You will then need to find the line which says “#listen-address=”. You will need to remove the ‘#’ and add “127.0.0.1” after the ‘=’ to set this variable up correctly. Now make sure you save the changes and exit from the editor you have been using.

 

Now that that is done you will want to open up the dhclient.conf file “sudo nano /etc/dhcp3/dhclient.conf and add in the line “prepend domain-name-servers 127.0.0.1;” to the file to make your other changes work.

 

Next is the changes to your resolv.conf file which you may need to change and you will need to add in an additional line at the top of the file. This line should be nameserver 127.0.0.1, after you have added this line in you will need to save the file and exit out of your editor again.

 

After doing this you will need to restart two services, firstly restart your networking and after that restart dnsmasq to put the new config into use.

 

After you have done this you should have a nice little dnsmasq setup on your own computer caching the name queries removing the time it takes to resolve the name. You should be able to notice a different in which the pages load however please note that this does not “speed up your connection”, your connection, download and upload will all be the same. Just the method in which the pages are resolved.

 

As for seeing that this works, you can quickly test this in the terminal by “digging” a domain and after the initial time you do the request. Further ones should show a “Query Time” of 0ms.

Ok so we all do it because its the only way we really wake up our HTC phones. Pressing the power button will make an interrupt to wake up the phone and take it out of sleep mode. Now the only problem is that the power button can become over-used and can become broken over time.

 

So why allow the use of the volume button to wake up the phone as well? Well from stock this option is not given, however – this can be modified and pretty simply.

 

Firstly you will want to find a file within your build called “android.policy.jar”  called KeyguardViewMediator.smali and you will want to open it with the notepad or something similar.

 

Once opened you will need the line with ” .method private isWakeKeyWhenKeyGuardShowing(I)Z” and delete the 0x18 &0x19 lines.

 

Save your edited file and repackage your build.

 

Once built flash onto your device and hopefully you should now have a phone that can be woken by using the volume buttons as well as the power buttons!

 

Happy modding!!

 

 

 

 

I have recently the pleasure of being able to play around with a couple of laptops, netbooks and tablets that have had built in GSM/3G modems. However, over the past couple of years we have been given the USB 3G modem which gives nearly every person with one of these the ability to connect to the internet on the go using a laptop or netbook. I have used these previously, and have run into several issues regarding these dongles. The first and probably most important one is that they are not built to last. They have a great deal of movement when placed into the socket which gives you connection issues and a multitude of problems when moving around as they potentailly can break in two.

Looking at the alternative which I have been usindg and these are usually built into the device. They work the exact same as your mobile phone (to a point anyway) they are usually joint via a series of connectors onto the main board of the system, and usually consist of a sim card reader and a bunch of fancy electornics that allows the connection to happen and also a antenna or aerial.

These aircards are by far superior to the 3G modems, they allow you not to worry about knocking the dongle out the device, or having some form of driver or connection issue. Usuaully with an Aircard you get better signal strength and better configurability. Aircards are great for systems you want to take with you on the go, a laptop fitted to a car mount so that you can track specific taget zones when driving. Seen in Storm chasers, majority of radar data is pulled using a Aircard to download the latest radar images for specific target areas. I have used these sort of systems in the past, but instead of chaasing storms I have used them for planning routes and journeys to avoid traffic on the go. They also give you the additional entertainment value unlike what a standard sat nav unit would give you.

The biggest technical adavnce regarding these form of systems has to be the tablet computers that have been launched over the past couple of years. iPads, Kindles, Android Tabs, and a wide range of other tablet machines all now come with built in 3G modems allowing the users to take out a pay monthly internet contract or even a pay as you go tariff to allow you to connect on the go. Maximising productivity, performance and overall satisfaction.

 

Tips for the future, if you are going to invest in one of these systems get one that has been well reviewed, works well and allows you to configure it to whatever specification you want it to. Also please remember to be safe 😉

Linksys (now owned by Cisco Systems) designed and developed this lovely little router a while a go now but I find it to be still on of the best I have ever used or played around with. Obviously the stock firware that comes on it, provided by Linksys is a pile of rubbish however get your hands on some custom built firmware and you will be able to set up all different kinds of great things with this beauty.

 

Obviously I have mine running a custom build of DD-WRT (which you can find here: http://www.dd-wrt.com) and I have my router fully integrated into the backbone of my houses networking topology. Using the software loaded onto the router I can access important stats, monitor specific connections, see how many ports are in use, observe the sites being visited and set up vlans and multiple wireless networks through the one router. All of these features are totally configurable and you can set them up how you please, after all everyone is different and likes things their own way.

 

However after thinking about it, it dawned on me that one of the most important features I think is suitable for the majority of home broadband users is the ability to check your own bandwidth. Ok so fair enough it might not bee 100% accurate, but it should be pretty close.

The best featire of this is that you can see a graph showing which days you have used your connection too much and maybe try to control what you look at on the internet. After all, broadband providers are starting to crack down on how much “unlimited” usage there actually is in the world – Surely unlimited, right?

 

Anyway, this is a really interesting and really good feature for all users of the WRT54G model router by Linksys – obviously you need to over come the first hurdle of installing DD-WRT, but the task in itself is like a walk in the park. All you are really doing is downloading a firmware file and then uploading it to the router, logging into the new interface, configure your connection type and security and you are ready to go – nothing could be simpler. Then after a couple of days, in the “Status” section on your router, you should be able to access a tab called “WAN” and there you will be able to see your monthly usage, day by day and get a really good look at how active you have been.

 

 

From one technical person to another – if you are like me and totally disagree, hate or are just generally annoyed by the unity tool kit that has recently added to the more recent releases to Ubuntu Desktop (I think starting from 11.04), then you will probably either want the option to drop back to the classic Gnome desktop or get rid of unity completely.

Luckily for users that run 11.04 you can actually change your session to use the classic Gnome Desktop, however for the majority of users that have probably upgraded to 11.10 already you will have found out that you are stuck with the unity desktop. And to clear up the whole graphical matter that has been discussed several times – unity is 2D, so if you want to do anything fancy using 3D effects then you no longer can (unless you hack it to force it – this is plausible and works sort of!)

 

Nicely for us old school fans of ubuntu and not the new “indie” kids of ubuntu you can still install the Gnome desktop through the repositories.

You can install the classic Gnome desktop by installing the “gnome-panel” package:

sudo apt-get install gnome-panel

 

Once installed all you need to do is change the session on the log in screen to show “GNOME classic” (found under the gear icon on the login screen). You will now be back in your lovely land of GNOME classic (to a point), with top and bottom configurable panels, access to the very lovely Compiz window manager to make your windows do the silly things they aren’t even required to do and just make life that little bit easier for you. Fair enough it won’t be back to the very very original classic desktop – but using this will allow the developers to work out the problems with unity and make them better. Please note that

 

Obviously that is as simple as it gets, you will notice subtle differences in the GUI from previous installs only because we are now on Gnome 3 and things should really be improving.

 

In terms of ubuntu improving what it does, I would really like to host a sort of forum to get an understanding whether people like the newer editions of ubuntu with the unity tool kit, or if ubuntu is working on more design than programming now a days?

 

Any opinions are valid, and I would really like to hear about them.

 

Thanks

I’m sure we are all aware of the famous IOS screenshot capability and how it came on all versions of the iphone without any sort of manipulation required. Well now we can rest at ease fellow android lovers, as turns out android have started to put it into the main distribution.

Now I am unsure as to how far this new reach goes, but as far as I am aware any android releases that include sense 3.0 or higher will include this new feature. It can be activated by pressing the power button and the home button (much like IOS) but of course we all now that android is better.

The screenshot is stored within your photo directory/gallery where you can obviously go in and review it, look at it or share it whatever really takes your fancy.

Overall this sort of development is a big step up. I remember when I had a G1, and the Hero – where you had to actually have the phone rooted before you could even consider taking screenshots. Even with the phone rooted it turned into a bigger pain trying to run the app than what it was worth.

Maybe this is a turning point. I’m not going to say that Android was missing loads of points and it was awful, because that is far from the truth. Overall the android OS is one of the leaders in its field and it is something to be proud of. Maybe now we can get just those little things that it was missing previous – you never know

Recently I bought this android tablet really look forward to the power and mobility it gave, and I was so surprised. It didn’t just fill me with joy using it, I use it pretty much everyday and what excitement I get from using it. I currently have the 32GB model, quite a large jump from the 16GB one at quite a price – but well worth it.

So I wouldn’t be myself if I didn’t try to root the thing. Luckily the tablet came with a version of Gingerbread on it, and luckily with a little bit of hunting I was able to find a modified apk that would allow me to gain full root access.

The modified apk you are looking to get is called GingerBreak and it is a relatively easy and painless process to getting things moving.

You will first need to download GingerBreak and move it to the SD card in your tablet.

Next ensure that USB debugging is on and that install from unknown sources is ticked.

Open your favored file explorer app on your tablet and locate the apk file

Execute the apk file to allow it to install to your device

Now run the GingerBreak app, and allow it to run the root procedure.

As long as there have been no problems you should now happily be the proud owner of a rooted Acer Iconia A500

Disclaimer: I take no responsibilty for anything you may have caused to yourself or your hardware. This is written as an advice or a guide. Every situation is different and you follow these steps at your own risk***

Firstly this is going to be a real short thing – it is firework night after all and I have places to be but none the less I need to keep up with this.

 

I’m not exactly sure why this has suddenly affected me, maybe the recent change in my peripherals that I use on a daily basis however some people may have noticed that the scroll wheel within ubuntu doesn’t really scroll anywhere fast.

Now I thought ok this will be a really simple fix, going into the system settings then mouse/pointer options and changing the number of lines the scroll wheel scrolls. However unlike shiny Windows, ubuntu doesn’t have this option and therefore you are left with a rather annoying slow scroll speed. Coming from a background of knowledge in regards to ripping things apart and putting them together I tried to think of ways to be able to change the sensitivity of this input. My first thought was trying to work out how I would be able to capture cat /dev/input/event4 and then manipulate that action to change the speed of the scroll action. Discovering that this was pretty much a long drawn out task I discovered that by possibly editing your xorg.conf I possibly could assign an option and then set that variable.

So that’s what I did, I edited my xorg.conf file to include Option "VertScrollDelta" "10" in it underneath the section defined for mouse options. So willingly I saved my xorg file, restarted x and hoped it had work. Didn’t exactly go as planned, well I say this but there was really no difference. Nothing had changed at all, it was better it wasn’t worse. So I gave up for the moment. Looking across forums regarding this item it seems it has actually been an outstanding bug in GNOME for about nine years, one they are yet to fix.

As it is very frustrating to pretty much have to attack your mouse to get to the bottom of a page, I think I will keep this in my “fix, to-do” list so maybe one day I can sit down and actually get the time to look at the problem straight on and try and see if I can find a work around. Maybe one day.