Advanced Network Card Settings – What they do and how you should set them
by foxmajik on Jul.10, 2010, under Technology News
This article will tell you about what some of the advanced hardware settings on your network card/interface do and how you should set them.
Network card manufacturers often use overly safe defaults for compatibility at the cost of decreased performance.
Note: Many network devices store these settings in their NVRAM, so turning them on in one operating system will turn them on in every other operating system you use as well. So, for example, if you dual boot Windows and Linux, the settings will be in effect in Linux as well. Additionally, if you take that network card out of your computer and put it into another computer, those settings will still be in effect because they are stored on the card rather than on your hard drive.
Also note that saving these settings will temporarily disconnect you from the network.
Interrupt Moderation
Every time your network card gets a packet from the network it has to interrupt the operating system to give it the packet. Interupt moderation tells the network card to store packets in its buffer and interrupt the operating system less often. This can mean a more responsive system at the cost of a negligible amount of latency. [source]
Checksum Offload
Checksum offload tells the network device to do checksums for each packet itself rather than making the operating system do it. If your network device supports this you should turn it on, as it can reduce processor usage. Your network device may have other “offload” settings as well, such as “large send offload” and “UDP checksum offload.” They should all be switched on unless they cause problems. [source]
Jumbo Frame
Jumbo frame tells your network interface to send larger packets of data. This setting is usually set to off by default because some cheap or old routers do not support relaying of jumbo frames. You should turn this setting on. If your network connection dies, turn it back off. Some network cards have a setting that allows you to specify frame size, usually in increments of 1k or 1000 bytes. The highest sane value is 9000 bytes. Try that setting. As before, if your network connection stops working, consider replacing your router with a better one and/or change the frame size to a lower value. [source]
There are other settings that may affect performance, but these are the easiest to tune.
how to backup your entire Firefox install automatically on a schedule using MozBackup and Windows 7 Task Scheduler
by foxmajik on Jul.10, 2010, under Technology News
This is a short tutorial on how to backup your entire Firefox install automatically on a schedule using MozBackup and Windows 7 Task Scheduler.
I am writing this tutorial because I expect there are a lot of people besides me who often find themselves re-installing Firefox and all of their addons due to virii, OS re-installs, accidental data deletion, new version of Windows, etc.
- Download and install MozBackup.
- Create a configuration file for MozBackup on your desktop. Name the file Default.mozprofile and make the contents as follows:[General]
action=backup
application=Firefox
profile=Default
output=c:\backup.pcv
password=
- Change theoutput=
line to indicate the location where you want your Firefox data stored when it’s backed up. I have mine set to backup to my NAS.
- Save the file on your desktop.
- Open the folder you installed MozBackup to in Explorer, then drag and drop the configuration file into that folder.
- When the screen dims and the Escalate Privileges box is presented, confirm that you want to escalate privileges in order to copy the file by clicking Yes.
- Open the Task Scheduler by clicking Start and typing Task Scheduler followed by pressing Enter.
- In Task Scheduler click Action –> Create Task…
- Name the task something useful like Backup Firefox.
- Give it a useful description.
- Set the task to run whether or not you are logged in. This will make your profile backup even when your computer is locked.
- Click on the Triggers tab.
- Click New…
- Under Settings, change the interval to Daily.
- Under Advanced Settings, check the box that says “Stop the task if it runs longer than:” and set it to 1 hour.
- Set the “Start:” time and date to a time when you won’t be using your computer.
- If you use your computer in multiple time zones, check the box labeled “Synchronize across time zones”.
- Click the Actions tab.
- Click New.
- In the “Program/script” box, browse for and select the filename for the MozBackup executable in the folder where you installed it.
- In the “Add arguments” box, type the filename of the config file you created earlier.
- Click OK.
- Click the Settings tab.
- Click “Allow task to be run on demand”.
- Click the Conditions tab.
- Check the box that says “Wake the computer to run this task.”
- Click OK again to save the scheduled task.
- Click on the Task Scheduler Library in the left column of Task Scheduler.
- Click the Backup Firefox item you created, which now appears in the middle column.
- Right-click the task and choose Run to test your backup.
If the backup was successful you are ready to backup your Firefox profile automatically.
Notes:
- If you choose to backup your profile when your workstation is locked rather than on a time schedule, set the option to only execute the task if it’s not already running to prevent instances of MozBackup from overlapping.
- Firefox must be closed for the backup to run. Close firefox before leaving your computer on the days you schedule your backup.
You can use MozBackup to backup a copy of your Firefox installation and then restore it to a portable installation of Firefox on a USB thumb drive:
- Backup your profile using MozBackup.
- Install Firefox Portable on a thumb drive.
- Launch Firefox Portable from the thumb drive so it creates a profile.
- Restore your stored profile using MozBackup, selecting the profile folder on your thumb drive as the destination.
Product Review: HD Audio Rush Digital Surround Sound Decoder
by foxmajik on Jun.23, 2010, under Product Reviews
For some years I’ve been searching for a device that does one simple thing: Takes a Dolby Surround audio source and sends the audio to the correct channels for a set of 5.1 speakers.
There are lots of devices that claim on their packaging and in ads that they support “Surround Sound,” but for the most part they’re fooling you. Licensing Dolby’s surround decoding technology is expensive, so they use verbal trickery to fool you into thinking you’re getting Surround Sound.
There are many devices available that contain “surround sound decoders” (in quotes) that do speaker output delay to make it sound like you’re getting surround sound. This is what most “surround sound” sound cards and USB audio devices do. But it’s not real, discrete channel surround sound. You’ll notice that the packaging indicates the device supports “Surround Sound” and it may even have the Dolby Digital logo, but that the packaging verbiage is carefully phrased to avoid putting the words “Dolby” and “Surround Sound” together.
There are also many “surround sound” devices that take a sound source and convert it to a Dolby Digital sound stream, which they output via a optical or coaxial digital output. They do this so they can print the Dolby Digital logo on their package and say they “support Dolby Surround Sound.” These devices usually have analog output connectors for surround sound speakers as well. However, the audio that comes out of the speakers plugged into the analog outputs is not surround sound because the device is not capable of decoding a Dolby Digital, AC3 or other Surround Sound signal.
Some devices can offer true surround sound, but only when you’re playing a DVD.
Creative Labs and Asus love to use this trick. Creative Labs’ X-Fi USB sound adapter says “Surround Sound” all over the packaging and has Dolby logos on it too, but when you open it up and try it out you find you’re not getting real surround sound, you’re getting Creative Labs’ “Matrix Surround,” which most people who have reviewed the product agree is awful. Asus’s top-of-the-line sound card the Xonar DX sound card claims to support Dolby Surround Sound, but the use that later trick of outputting Dolby Digital sound over an optical output, which you have to plug into a device capable of decoding a Dolby Digital signal to get Surround Sound.
So licensing is expensive and it’s impossible to get a sound card that will actually output that delicious Dolby Pro Logic II, AC3 5.1 or Dolby Digital 5.1 to your computer speakers, which have their own perfectly utilitarian amplifier. What do?
You go to China!
Enter the Leonshop HD Audio Rush Digital Surround Sound Decoder from Competitive Gaming Audio:
This little box bridges the gap between all those “Surround Sound” sound cards and your surround sound speakers. It will take a digital input (optical or coaxial) or an analog stereo connection and output Dolby Pro Logic II music. Pro Logic II is a technology that takes a stereo signal and converts it to Surround Sound by using distinct differences in the timing between the channels of the audio source to split the signal into six channels. In other words, most music is recorded in a special way that makes it so you can listen it in stereo or plug the stereo signal into a special decoder to get surround sound.
This little box can also take a digital signal from those inputs and decode it from AC3 or Digital DTS into 5.1 Surround Sound to your speakers.
Sounds simple, yes? Why don’t more sound cards do that on their own? Remember what we said about licensing earlier: This little device is from China, where licensing is not a problem.
This little box will be a breath of fresh air to anyone who’s been using a “Surround Sound” sound card.
You’ve got a set of 5.1 speakers, you’ve got a sound source, why whore it up with a gigantic multifunction tuner that does a bunch of crap you don’t need?
It doesn’t amplify sound. It doesn’t decode sound and send it to another device. It doesn’t make coffee.
It does one thing and it does it well: Surround Sound.
Sure, there are critics that say it could be better but if you’re looking for a simple, true surround sound solution this little box can’t be beat.
HTTPS Everywhere | Electronic Frontier Foundation
by foxmajik on Jun.18, 2010, under Technology News
HTTPS Everywhere is a Firefox extension produced as a collaboration between The Tor Project and the Electronic Frontier Foundation. It encrypts your communications with a number of major websites.
Many sites on the web offer some limited support for encryption over HTTPS, but make it difficult to use. For instance, they may default to unencrypted HTTP, or fill encrypted pages with links that go back to the unencrypted site.
polar-bear-hugging-dog.jpg JPEG Image, 385×488 pixels
by foxmajik on Mar.03, 2010, under Pictures
Leave a Comment more...Your Facebook friends list is coming to AOL Instant Messenger
by foxmajik on Feb.10, 2010, under Technology News
Your Facebook friends list is coming to AOL Instant Messenger.
AOL and Facebook have just announced one of the biggest and most useful social networking partnerships to hit the Internet since … well, ever. Now, instead of having to use Facebook Chat — which is frankly kind of clunky and obnoxious — you’ll be able to chat with all your Facebook buddies via AOL Instant Messenger. It’s peanut butter meets jelly! Friends list meets buddy list! AIM meets Facebook Chat!
Google Stream? Google will launch “huge” new social features tomorrow
by foxmajik on Feb.08, 2010, under Technology News
Google is working on something mysterious that has to do with Gmail and social networking, but the details are still under wraps. The new product will be unveiled tomorrow, and it could be anything from integrating Gmail status updates with Twitter and Facebook to launching a full-scale Twitter-like service of its own.
via Google Stream? Google will launch “huge” new social features tomorrow.
Universal sues Grooveshark music service
by foxmajik on Feb.08, 2010, under Technology News
Universal sues Grooveshark music service.
Universal Music Group is suing Grooveshark. This is also not the first lawsuit they’re facing, so they probably know the drill by now (they’ve reached a settlement with EMI).





