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How to Get More Out of Your Home Network

How to Get More Out of Your Home Network

 

How to Get More Out of Your Home Network

    For most people, a wireless router is just a way to share your broadband Internet connection across the several computers and wifi-enabled devices  in your house. Your router is not just a point of connection to your cable or DSL modem, though – it connects every other computer and device in your house in one big network. With not much work at all, you can easily take advantage of this to make home-wide backups simple, to centralize your music collection, to share household files and services, and even to operate computers on other rooms. We’re used to going over the Internet to share resources on other computers, but all the Internet is is a gigantic, industrial-strength version of the network in your own home.

    A quick overview of your home network

    Your router is a simple device, really – all it does it bounce data from one computer to another. When I upload a picture from my laptop to my Picasa account, for example, my laptop requests a connection from my router, which accepts the connection and requests the file, which my laptop sends. Then the router readdresses the data in my photo to the modem, which readdresses it to a router on my broadband provider’s network, which sends it out onto the Internet bound for the routers at Picasa. (OK, I’m simplifying a little, but that’s the basic gist. All I’ve really left out are the order of priests who chant the holy invocations that run the Internet.)

    Out on the Internet, every computer has an address, a crazy number that looks like this: 74.125.127.147 (that’s Google’s homepage, if you’re wondering). On your home network, every computer has an address, too – a crazy number that looks like this: 192.168.10.4 – the last two digits being anything from 0 to 255. On the Internet, the URLs we’re familiar with (google,.com, lifehack.org, etc.) are aliases for those crazy numbers – their secret identities. The crazy numbers are the “IP address”, the location of the computer we’re looking for. On our home network, we’re stuck with the crazy numbers (for now – in a moment I’ll show you how to replace them with more memorable addresses.) 

    To find out the IP addresses of the computers on your home network:

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    • On Windows, open a command line (Start > Run and type “cmd”) and type “ipconfig” – several lines will come up, including your IP address.
    • On Mac OSX, look under your system preferences.
    • On Linux, use your magic telepathic powers to mind meld with the machine. When that doesn’t work, try “/sbin/ifconfig” at the command line.

    Now, unless you got fancy when configuring your PCs, your router technically assigns a new IP address to each computer when it logs onto the network. In practice, I find that routers tend to assign the same IP address to the same PCs pretty consistently, but to be certain you can go into your computer’s network settings and copy the IP address, subnet mask, and default gateway in, giving each computer a permanent IP address.

    Here are some things you can do to get more out of your fancy home network:

    1. Centralize content to one main computer

    I have a desktop PC that’s on all the time that I use as the central “hub” in my home network. Because it has the biggest hard drive in the house, I use it to store all my documents, media files, photos, and everything else. Most files Are opened from and saved to that single My Documents folder; if I need a file on another computer – for example, if I’m going to be working on something while traveling with my netbook, it gets saved to a Windows Live Mesh folder and automatically synced back to the hub whenever I’m online.

    You don’t need any special software to open files from or save files to another computer on your network – not usually, anyway. Even on mixed networks, most contemporary operating systems include software to allow them to communicate with other OSes. I find that even streaming audio and video across my home network is hitch-free – so I can watch a video on my netbook in the bedroom even though the file’s on my desktop in the living room.

    2. Backup like a superstar

    Since everything important is on one computer, I only have to backup from that computer. All new files are copied to an external hard drive from that computer every night using SyncBack. For redundancy, I also backup that computer to Mozy. The My Document folder on my two laptops is mirrored on the hub computer using Windows Live Mesh (which means they’re also backed up online at the Windows Live Mesh homepage).

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    3. Run a server

    Since I do some web design from time to time, I have a webserver running on my home network – on the hub, naturally. Installation is simple: download XAMPP, run the installer, and you’re done. XAMPP installs Apache, the industry-standard web server; MySQL, the industry-standard relational database; and PHP, a scripting language. I also have a Rails server running on the same computer, from when I was using Tracks, a Ruby on Rails-based GTD app.

    So, for instance, let’s say I’m working on a new website. I create a new directory in the “htdocs” folder in the XAMPP directory and install WordPress into it. Then, from any computer in the house, I can type “192.168.10.4/newfolder” to work with WordPress, just like I’d installed it on the Web. That looks ugly, but to be honest, I don’t type all that: I type “olympus/newfolder” into my browser, because I’ve modified the hosts file – on which we’ll talk in just a moment.

    4. Use any computer in the house directly with VNC

    Let’s say I’m on the couch and I want to check something on the desktop but I don’t want to get up. Easy – I fire up UltraVNC and voila – the screen from my desktop appears on my netbook (well, some of it – I have a 20” widescreen on my desktop and a 9” screen on the netbook, so I have to scroll around a little to see the whole screen…).

    UltraVNC is free, open source, and simple to use. Download it and install it on every computer. It will install both a client, for viewing other computers on the network, and a server, for sharing the host computer’s screen with others. To view another computer’s desktop, run the VNC client, enter the IP address of the remote computer, enter the password, and that’s it – you can go full-screen and it’s like you’re sitting right in front of the remote computer.

    Here’s one thing I use this for: Olympus, my hub computer, is right next to the TV (thankfully it’s a really quiet computer) and has TV-out. So I run Hulu Desktop (or other video) on the hub, in full screen mode, feed the image to my TV via an S-Video cable, and use my netbook as a remote control using VNC to access Olympus’ desktop. Perfect.

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    5. Edit your hosts file to give your networked PCs easier-to-remember names

    If you do a lot of network stuff, you’re going to get tired of typing “192.168.100.114” and the like. It would be much better if you could just use words like you do on the Internet, right?

    You can do that easily enough by adding entries to your computer’s hosts file. Normally when you enter a URL into a browser, the computer sends out to your ISP’s DNS servers to translate that word into an IP address, but first it checks the hosts file – if the hosts file gives an IP address, it skips the DNS lookup on the Internet. What this means is that you can assign the IP addresses of your computers names that are easy to remember, like “minerva”, “mercury”, and “oracle” (those are computers and devices on my home network – I”m sooooo clever!).

    To change your hosts file:

    • Go to c:\winnt\system32\drivers\etc\ on Windows 2000 and XP Pro or c:\windows\system32\drivers\etc\ on Windows XP Home and Vista and open the file called “hosts” in Notepad (or another text editor; in Vista, you have to run Notepad as an administrator).
    • Open Terminal.app on Mac OSX and enter “$ sudo nano /private/etc/hosts “ without the quotes.
    • Go to /etc on Linux and open the file “hosts”. Most likely.

    There should be a line that says “127.0.0.1 localhost” – don’t touch that. Below it, start entering lines like this for each computer on your network: [IP address]<tab>[Desired name]

    So, for example: 192.168.10.2 olympus

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    Don’t forget the tab between the IP address and the new name.  Notice I skipped 192.168.10.3 – that’s the computer I’m writing on now, and if I want to access it from itself, I just type “localhost”. Now, when I type “olympus” int  the browser window, it connects to that computer. Since XAMPP is running there, I get the home page for Apache – which I could replace with something of my choice, but I haven’t.  If I want to run Tracks, which runs on port 3000, I would type “olympus:3000” into my browser.

    6. Share a printer

    It’s stupid to have a printer attached to every computer in the house. Instead, I have a single laser printer attached to the hub, and I can print to it from any PC on the network – as long as the hub computer is on, which it always is. (Technically, because I have a networked printer, I could plug it directly into the router, but the router’s up near the ceiling and I don’t want another cable hanging down, so I connect it to the hub PC instead). Although I don’t currently have a color inkjet for photos, when I did, it was connected to the hub PC too.

    To share a printer, just go into the Printer settings on the computer it’s connected to, right-click, and select “Sharing…”. Turn on printer sharing. Now, go to “Add printer” on the other PC, and search the network for your printer. If all goes according to plan, your computer should install teh drivers from the host computer, and you’re set. If it doesn’t go well, you may need to use the install disc or download te drivers from the manufacturer’s website, and follow the instructions for installing a network printer. (It’s more complex on OSX and Linux, but google “share printer” and your operating system’s name and I’m sure you’ll find easy enough directions.)

    The End

    Do you have cool network tips to share with your fellow Lifehack readers? Share your network setup in the comments!

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    Last Updated on July 17, 2019

    The Science of Setting Goals (And How It Affects Your Brain)

    The Science of Setting Goals (And How It Affects Your Brain)

    What happens in our heads when we set goals?

    Apparently a lot more than you’d think.

    Goal setting isn’t quite so simple as deciding on the things you’d like to accomplish and working towards them.

    According to the research of psychologists, neurologists, and other scientists, setting a goal invests ourselves into the target as if we’d already accomplished it. That is, by setting something as a goal, however small or large, however near or far in the future, a part of our brain believes that desired outcome is an essential part of who we are – setting up the conditions that drive us to work towards the goals to fulfill the brain’s self-image.

    Apparently, the brain cannot distinguish between things we want and things we have. Neurologically, then, our brains treat the failure to achieve our goal the same way as it treats the loss of a valued possession. And up until the moment, the goal is achieved, we have failed to achieve it, setting up a constant tension that the brain seeks to resolve.

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    Ideally, this tension is resolved by driving us towards accomplishment. In many cases, though, the brain simply responds to the loss, causing us to feel fear, anxiety, even anguish, depending on the value of the as-yet-unattained goal.

    Love, Loss, Dopamine, and Our Dreams

    The brains functions are carried out by a stew of chemicals called neurotransmitters. You’ve probably heard of serotonin, which plays a key role in our emotional life – most of the effective anti-depressant medications on the market are serotonin reuptake inhibitors, meaning they regulate serotonin levels in the brain leading to more stable moods.

    Somewhat less well-known is another neurotransmitter, dopamine. Among other things, dopamine acts as a motivator, creating a sensation of pleasure when the brain is stimulated by achievement. Dopamine is also involved in maintaining attention – some forms of ADHD are linked to irregular responses to dopamine.[1]

    So dopamine plays a key role in keeping us focused on our goals and motivating us to attain them, rewarding our attention and achievement by elevating our mood. That is, we feel good when we work towards our goals.

    Dopamine is related to wanting – to desire. The attainment of the object of our desire releases dopamine into our brains and we feel good. Conversely, the frustration of our desires starves us of dopamine, causing anxiety and fear.

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    One of the greatest desires is romantic love – the long-lasting, “till death do us part” kind. It’s no surprise, then, that romantic love is sustained, at least in part, through the constant flow of dopamine released in the presence – real or imagined – of our true love. Loss of romantic love cuts off that supply of dopamine, which is why it feels like you’re dying – your brain responds by triggering all sorts of anxiety-related responses.

    Herein lies obsession, as we go to ever-increasing lengths in search of that dopamine reward. Stalking specialists warn against any kind of contact with a stalker, positive or negative, because any response at all triggers that reward mechanism. If you let the phone ring 50 times and finally pick up on the 51st ring to tell your stalker off, your stalker gets his or her reward, and learns that all s/he has to do is wait for the phone to ring 51 times.

    Romantic love isn’t the only kind of desire that can create this kind of dopamine addiction, though – as Captain Ahab (from Moby Dick) knew well, any suitably important goal can become an obsession once the mind has established ownership.

    The Neurology of Ownership

    Ownership turns out to be about a lot more than just legal rights. When we own something, we invest a part of ourselves into it – it becomes an extension of ourselves.

    In a famous experiment at Cornell University, researchers gave students school logo coffee mugs, and then offered to trade them chocolate bars for the mugs. Very few were willing to make the trade, no matter how much they professed to like chocolate. Big deal, right? Maybe they just really liked those mugs![2]

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    But when they reversed the experiment, handing out chocolate and then offering to trade mugs for the candy, they found that now, few students were all that interested in the mugs. Apparently the key thing about the mugs or the chocolate wasn’t whether students valued whatever they had in their possession, but simply that they had it in their possession.

    This phenomenon is called the “endowment effect”. In a nutshell, the endowment effect occurs when we take ownership of an object (or idea, or person); in becoming “ours” it becomes integrated with our sense of identity, making us reluctant to part with it (losing it is seen as a loss, which triggers that dopamine shut-off I discussed above).

    Interestingly, researchers have found that the endowment effect doesn’t require actual ownership or even possession to come into play. In fact, it’s enough to have a reasonable expectation of future possession for us to start thinking of something as a part of us – as jilted lovers, gambling losers, and 7-year olds denied a toy at the store have all experienced.

    The Upshot for Goal-Setters

    So what does all this mean for would-be achievers?

    On one hand, it’s a warning against setting unreasonable goals. The bigger the potential for positive growth a goal has, the more anxiety and stress your brain is going to create around it’s non-achievement.

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    It also suggests that the common wisdom to limit your goals to a small number of reasonable, attainable objectives is good advice. The more goals you have, the more ends your brain thinks it “owns” and therefore the more grief and fear the absence of those ends is going to cause you.

    On a more positive note, the fact that the brain rewards our attentiveness by releasing dopamine means that our brain is working with us to direct us to achievement. Paying attention to your goals feels good, encouraging us to spend more time doing it. This may be why outcome visualization — a favorite technique of self-help gurus involving imagining yourself having completed your objectives — has such a poor track record in clinical studies. It effectively tricks our brain into rewarding us for achieving our goals even though we haven’t done it yet!

    But ultimately, our brain wants us to achieve our goals, so that it’s a sense of who we are that can be fulfilled. And that’s pretty good news!

    More About Goals Setting

    Featured photo credit: Alexa Williams via unsplash.com

    Reference

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