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  • can I connect two modems and comunicate on two side

    - by GongT
    I just wondering how modems work. I know the process of "modulation" and "demodulation". So I wanto know is "demodulation" are simple revese of "modulation" in real world. The PC can got an IP address when connect as type 1 What will happen when I connect them like type 2? type 1 : [PC] ================= [router] type 2 : [PC] === [m] ------- [m] === [router] [m] : modem(exactly same) === : Ethernet cable --- : DSL cable (phone line, maybe optical fiber, or something else?) ISP has a large number of model, Is them same thing as the one in my home(but with diffrent size/speed/price...etc)? Or it's completely different thing?

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  • Make my web-server traffic go through proxy?

    - by Eli
    I have a question that may or may not be possible. Basically Comcast isn't going to let me host a website on their ISP unless I have a business account. So, I spoke with my uncle who is big into networking and he told me to host my website through a proxy so Comcast cannot associate the website IP with my IP. I have purchases a proxy from proxy-hub.com, but I cannot seem to figure out what to do next. I may be approaching this totally wrong and I may need to create my own proxy server. Anybody have a clue? Thanks.

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  • internet without dns tennis play [closed]

    - by Curious
    Why do we make DNS requests separately when an ISP could also be handling the DNS request along with HTTP data simultaneously. So rather than: Ask opendns what yahoos address is. Opendns returns: 66.55.44.11 Hey, Verizon. Send/Request data from 66.55.44.11. Why wouldn't the protocol just request data from "yahoo.com" and verizon interprets the yahoo.com as a split DNS request. This would lower latency for sure as it cuts out the time required for the dns server to call back the IP to then be sent AGAIN when it could just be handling the entire request theoretically. Couldn't this be managed via a host file change on the client side and make compatible servers?? So much like a proxy.

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  • Monitoring/logging a malfunctioning internet connection

    - by Pekka
    I have a mysterious internet connection problem: Every 15-20 minutes, the connection will become very slow, and take 2-3 minutes for anything to load. I've had a technician from the ISP over here to test the hardware, and everything is in pristine condition. They have no other explanation than a configuration error on my machine, a possibility I can exclude 90% because I'm experiencing the same problems with another machine. I will have to monitor the situation now, and I would like to run a program that logs when internet connections become slow. I thought about putting something together using at and wget. Does anybody know of some other tool for this that does this out of the box - maybe something with an adjustable request frequency, logging connection speeds etc.?

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  • Is there a way for me to test my [closed]

    - by Jimi
    I have a home network with a cheap-o little router with a development server and a few devices hooked up to it. I am finding that backups of my server are taking FOREVER (a week for 60gb) running backups renders my internet connection useless from any other box int he house. I have maxed out the pipe to my house from the ISP (10down, 3up), but is there a way for me to test and see if my router is bottlenecking anything? I feel like 60gb backups shouldn't take this long so any help would be great!

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  • How to connect to two VPN connections at the same time in Mac?

    - by Sallar Kaboli
    Hello, I have a problem with my vpn connections, my ISP requires me to connect to a private vpn server of it's own in order to connect to internet, im connected to main network via WiFi, but i also want to connect to another VPN network of my choice (to bypass internet limitation in my country of course), i am able to do that in Windows, but its not working in Mac OS X Snow Leopard second vpn connecion type is PPTP / CHAP How can i do that? as u see in the pic, both vpn's are connected, first one is for main internet which is working properly , second one is also connected but its not affecting anything. its just connected. http://www.freezpic.com/pics/a5231c3e80501a3c25430f43c1ef5856.png

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  • ip recognition is different

    - by Cougar
    some months ago i bought a dedicated server from usa (http://www.dacentec.com/) datacenter. my ips are look like this : 162.248.243.blo blo blo when i check my ip in this site : http://whatismyipaddress.com/ it shows me : ISP: Dacentec Services: None Detected Country: United States why Services: None Detected and what did they do with this ip block? also when i open some sites like google, yahoo, etc they show me india or china as country. what is the problem about these ips and why i don't have a stable location for them?

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  • 2 RJ45 connectors on a one WAN cable

    - by mr_stavo
    Hello, I encountered strange setup on a network at company where I do some work. They have internet connection from small ISP located in the same building, all I see is one CAT5 cable with 2 RJ45 connectors. One is going to WAN port on the router and another into LAN port on the same router. This is the only way for internet connection to work. I tried to connect my laptop to one of the RJ45 but it won't work. Now, what is the purpose for such setup?

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  • Should I never put a transactional replication distributor on a subscriber server?

    - by Stuart Branham
    What factors into choosing a distribution server for transactional replication? In our topology, we've always had the distributor reside on the publishing server. We rarely generate snapshots and performance is good enough, so this is okay for us today. One of our instances is moving to a cluster, so we need to move the distributor off for resilience/symmetry. Right now our two choices are to use a server physically close to the publishers, or our single subscription server. Our publisher is in our main office, and our subscriber is in a colocation facility off-site which our ISP runs. We have a pretty good line to it. The reason we're even considering the latter is to save work and licensing costs.

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  • SMTP 25 blocked externally

    - by Jeff
    not sure how to title this question... we run an exchange server with around 80 internal users, all outgoing mail is relayed off a smart host (ISP smtp server) so nothing is actually sent to the world via our server. i wanted to check the server, locally i can telnet to port 25 with no issues and receive the esmtp service ready reply. whenever i do it from an external address (off our local network) i receive unable to connect error 10060. can this cause problems with SPF records, and reverse DNS ? should my exchange server be able to accept smtp requests, requiring authentication before i am able to send from external addresses? if so how... also the exchange server is behind a NAT (asa) device, more than likely thinking that the nat is not configured to route the smtp 25 request to the exchange server.. thanks

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  • connections on port 80 suddenly refused / server not responding

    - by user1394013
    my dedicated server stopped responding to requests on port 80 today out of sudden, i havent touched anything in more than a month. its ubuntu 10, varnish + nginx + php-fpm, only 1 website. load is at 0. i messaged my ISP if they changed something but no reply yet. i tried to access the site via http://web-sniffer.net/ and it times out on port 80, but if i connect directly to nginx on port 8080 it loads just fine. for normal users, it doesnt load on neither of these in normal browser. any tips what to check or what could be causing this?

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  • How to determine if my router is causing a bottleneck in uploads?

    - by Jimi
    I have a home network with a cheap-o little router with a development server and a few devices hooked up to it. I am finding that backups of my server are taking FOREVER (a week for 60gb) running backups renders my internet connection useless from any other box int he house. I have maxed out the pipe to my house from the ISP (10down, 3up), but is there a way for me to test and see if my router is bottlenecking anything? I feel like 60gb backups shouldn't take this long so any help would be great!

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  • Port forwarding stopped working in my Linksys WRT54G2 Linksys router.

    - by user23490
    How to do it again? I had simply forwarded needed ports (e.g. for counter strike, ftp, http etc)) but now with same system, same OS and same router and settings, it's not working. Tried setting router to "factory defaults" and do everything again. However other jobs are being done like it is connecting to my DSL ISP and I can access Internet easily. Still no success. PS. I tried on both Windows and Ubuntu. On Windows I use it for Counter Strike and others (e.g. host my local FTP server) on Ubuntu.

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  • Mirrored servers in data centers nationwide -- how? [closed]

    - by Sysadmin Evstar
    Possible Duplicate: Mirrored servers in data centers nationwide — how? Mirrored servers in data centers nationwide -- how? I flunked my IT interview by getting this question wrong. I thought that in the various metropolitan areas, an "http://google.com" request goes to the ISP's DNS server, which somehow returns an IP address for one of several geographically-nearby http servers, and then something internally rolls over to the next available local Google server. But then, I could not explain where the table of available local Google servers is actually cached, or the details of the IP address rollover. Or how they could manually take some server out of the rotation, from anywhere. So, what should I be reading now so I can ace this question next time? Also, what daemons run on these machines 24/7 to keep all those mirrored database disks synchronized?

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  • What happens internally in a router when LAN is configured? [closed]

    - by vindhya
    This week I was trying to setup LAN to my home. I couldn't login to the router webpage even though I tried all the username and password like admin etc... I want to ask: Why username and password is required to access modem/router webpage because its always usually admin and admin? What exactly happens inside router when you type correct username and password. Does the router store it internally or does it ask some ISP servers about it? Could someone explain what exactly happens internally in the router right from the configuration phase?

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  • Get Directory Size through SFTP

    - by Nongo
    A client has a managed websever; on this server is an e-commerce script and part of the script dumps a backup every week. The backup is stored on the web server (not in the HTTP route). The ISP takes a copy, and my clients wants to take a copy too. What I am trying to do is before downloading the file I want to be able to calculate the backup directory size - but the only access I have is through SFTP. Is it possible to easily get the directory size and then use this in a PowerShell Script. NOTE: I have written an automatic download script in Powershell, and I want to extend this. Forgive me if this sounds vague I can provide further info if you have any specific questions.

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  • mouseover producing multiple images works in Firefox, but not i.e.

    - by tcantrel
    The code below allows the user to hover over 1 object and it not only replaces the object but also shows an additional object between the buttons. It works great in Firefox, but does not in Internet Explorer. HELP webpage: http://www.isp.ucar.edu/ Thx, Terri if ( < ocument.images) { img1on = new Image(); img1on.src = "images/buttons/button-beachon-on.gif"; img1off = new Image(); img1off.src = "images/buttons/button-beachon.gif"; img2on = new Image(); img2on.src = "images/buttons/button-bgs-on.gif"; img2off = new Image(); img2off.src = "images/buttons/button-bgs.gif"; img3on = new Image(); img3on.src = "images/buttons/button-iam-on.gif"; img3off = new Image(); img3off.src = "images/buttons/button-iam.gif"; img4on = new Image(); img4on.src = "images/buttons/button-nvia-on.gif"; img4off = new Image(); img4off.src = "images/buttons/button-nvia.gif"; img5on = new Image(); img5on.src = "images/buttons/button-utls-on.gif"; img5off = new Image(); img5off.src = "images/buttons/button-utls.gif"; img6on = new Image(); img6on.src = "images/buttons/button-water-on.gif"; img6off = new Image(); img6off.src = "images/buttons/button-water.gif"; img7on = new Image(); img7on.src = "images/buttons/button-exploratory-on.gif"; img7off = new Image(); img7off.src = "images/buttons/button-exploratory.gif"; // second image that does not appear in original button space img1ad = new Image(); img1ad.src = "images/buttons/beachon-overview-sm.gif"; img2ad = new Image(); img2ad.src = "images/buttons/bgs-overview-sm.gif"; img3ad = new Image(); img3ad.src = "images/buttons/iam-overview-sm.gif"; img4ad = new Image(); img4ad.src = "images/buttons/nvia-overview-sm.gif"; img5ad = new Image(); img5ad.src = "images/buttons/utls-overview-sm.gif"; img6ad = new Image(); img6ad.src = "images/buttons/water-overview-sm.gif"; img7ad = new Image(); img7ad.src = "images/buttons/exploratory-overview-sm.gif"; } function imgOn(imgName) { if ( < ocument.images) { document[imgName].src = eval(imgName + "on.src"); document["holder"].src = eval(imgName + "ad.src"); } } function imgOff(imgName) { if ( < ocument.images) { document[imgName].src = eval(imgName + "off.src"); document["holder"].src = "images/buttons/isp-overview-sm.gif"; } }

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  • Remotely Schedule and Stream Recorded TV in Windows 7 Media Center

    - by DigitalGeekery
    Have you ever been away from home and suddenly realized you forgot to record your favorite program? Now Windows 7 Media Center, users can schedule recordings remotely from their phones or mobile devices with Remote Potato. How it Works Remote Potato installs server software on the host computer running Windows 7 Media Center. Once the software is installed, we’ll need to do some port forwarding on the router and setup an optional dynamic DNS address. When setup is completed, we will access the application through a web based interface. Silverlight is required for Streaming recorded TV, but scheduling recordings can be done through an HTML interface. Installing Remote Potato Download and install Remote Potato on the Media Center PC. (See download link below) If you plan to stream any Recorded TV, you’ll also want to install the streaming pack located on the same page. It isn’t required to stream all shows, only shows that require the AC3 audio codec. Click Yes to allow Remote Potato to add rules to the Windows Firewall for remote access. You’ll likely need to accept a few UAC prompts. When notified that the rules were added, click OK. Remote Potato will then prompt you to allow administrator privileges to reserve a URL for it’s web server. Click Yes. Remote Potato server will start. Click on the configuration button at the right to to reveal the settings tabs.   One the General tab, you’ll have the option to run Remote Potato on startup and minimized in the System Tray. If you’re running Media Center on a dedicated HTPC, you’ll probably want to enable both startup options. Forwarding Ports on Your Router You’ll need to forward a couple ports on your router. By default, these will be ports 9080 and 9081. In this example we’re using a Linksys WRT54GL router, however, the steps for port forwarding will vary from router to router. On the Linksys configuration page, click on the Applications & Gaming Tab, and then the Port Range Forward tab. Under Application, type in a name of your choosing. In both the Start and End boxes, type the port number 9080. Enter the local IP address of your Media Center computer in the IP address column. Click the check box under Enable. Repeat the process on the next line, but this time use port 9081. When finished, click the Save Settings button. Note: It’s highly recommended that you configure the home computer running Media Center & Remote Potato with a static IP address.   Find your IP Address You’ll need to find the IP address assigned to your router from your ISP. There are many ways to do this but a quick and easy way is to visit a site like checkip.dyndns.org (link available below) The current external IP address of your router will be displayed in the browser.   Dynamic DNS This is an optional step, but  it’s highly recommended. Many routers, such as the Linksys WRT54GL we are using, support Dynamic DNS (DDNS). What Dynamic DNS allows you to do is affiliate your home router’s external IP address to a domain name. Every time your home router is assigned a a new IP address by your ISP, the domain name is updated to point to your new IP address. Remote Potato’s user interface is accessed over the Internet is by connecting to your router’s IP address followed by a colon and the port number. (Ex: XXX.XXX.XXX.XXX:9080) Instead of constantly having to look up and remember an IP address, you can use DDNS along with a 3rd party provider like DynDNS.com, to sign up for a free domain name and configure it to be updated each time your router is assigned a new IP address. Go to the DynDNS.com website (See link at the end of the article) and sign up for a free Domain name. You’ll need to register and confirm by email.   Once you’ve signed in and selected your domain name click Activate Services. You’ll get a confirmation message that your domain name has been activated.    On the Linksys WRT54GL click on the Setup tab an then DDNS. Select DynDNS.org, or TZO.com if you prefer to use their service, from the drop down list.   With DynDNS, you’ll need to fill in your username and password you signed up with at the DynDNS website and the hostname you chose. Note: You can connect over your local network with the IP Address of the computer running Remote Potato followed by a colon and the port number. Ex: 192.168.1.2:9080 Logging in Remote Potato and Recording a Show Once you connect, you’ll see the start page. To view the TV listings, click on TV Guide. You’ll then see your guide listings. There are a few ways to navigate the listings. At the top left, you can click on any of the preset time buttons to jump to  the listings at that time of the day.  Click on the arrows to the right and left of the day and date at the top center to proceed to the previous or next day. Or, jump to a specific day with the date and date buttons at the top right.   To setup a recording, click on a program.   You can choose to record the individual show or the entire series by clicking on Record Show or Record Series.   Remote Potato on Mobile Devices Perhaps the coolest feature of Remote Potato is the ability to schedule recording from your phone or mobile device. Note: For any devices or computers without Silverlight, you will be prompted to view the HTML page. Select Browse Listings. Select your program to record. In the Program Details, select Record Show to record the single episode or Record Series to record all instances of the series. You will then see a red dot on the program listing to indicate that the show is scheduled for recording.   Streaming Recorded TV Click on Recorded TV from the home screen to access your previously recorded TV programs. Click on the selection you wish to stream. Click on Play. If you receive this error message, you’ll need to install the streaming pack for Remote Potato. This is found on the same download page as installation files. (See link below) The Begin from slider allows you to start playback from the start (by default) or a different time of the program by moving the slider. The Quality (bitrate) setting  allows you to choose the quality of the playback. We found the video quality on the Normal setting to be pretty lousy, and Low was just pointless. High was the best overall viewing experience as it provided smooth quality video playback. We experienced significant stuttering during playback using the Ultra High setting.   Click Start when you are ready to begin. When playback begins you’ll see a slider at the top right.   Move the slider left or right to increase or decrease the size of the video. There’s also a button to switch to full screen.   Media Center users who travel frequently or are always on the go will likely find Remote Potato to be a blessing. Since being released earlier this year, updates for Remote Potato have come fast and furious. The latest beta release includes support for streaming music and photos. If you like those nice network TV logos, check out our article on adding TV channel logos to Windows Media Center. Downloads and Links Download Remote Potato and Streaming Pack Find your IP address Sign Up for a Domain Name at DynDNS.com Similar Articles Productive Geek Tips Schedule Updates for Windows Media CenterUsing Netflix Watchnow in Windows Vista Media Center (Gmedia)Add a Sleep Timer to Windows 7 Media CenterStartup Customizations for Media Center in Windows 7Enable Media Streaming in Windows Home Server to Windows Media Player TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips DVDFab 6 Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 FoxClocks adds World Times in your Statusbar (Firefox) Have Fun Editing Photo Editing with Citrify Outlook Connector Upgrade Error Gadfly is a cool Twitter/Silverlight app Enable DreamScene in Windows 7 Microsoft’s “How Do I ?” Videos

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  • Problem resolving many of the Web Pages

    - by Aditya
    I am presently running Ubuntu 12.04 and using Chrome/Firefox along with OpenDNS (have tried Google Public DNS as well as DNS of my ISP). Suddenly, a lot of websites that I visit frequently don't load anymore. Some of them are imgur, yahoo, fed-sudoku, microsoft and addons page of firefox. I am sure there are many more that won't load. I have Windows 7 in Dual-Boot and there are no problems whatsoever in opening these pages on Windows. A little History: 2 weeks back I installed Ubuntu 12.10. I faced this issue right-away on Ubuntu 12.10. I thought something must have went wrong with the installation, so I removed Ubuntu 12.10 and instead installed Lubuntu 12.10 on it. But the same issue persisted on Lubuntu as well. So, I tried opening these webpages in Live Environments (of Ubuntu 12.10, Lubuntu 12.10 and Ubuntu 12.04.1) from USB. The issue was there for Ubuntu 12.10 and Lubuntu 12.10. However, I was able to access these webpages from Ubuntu 12.04.1. So, I installed 12.04.1 on my HardDisk. Everything on 12.04 was fine till yesterday; but suddenly, these sites don't load anymore. All this while, Windows 7 in Dual-Boot works flawlessly. Please help me resolve this issue.

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  • Domain registration and DNS, what am I actually paying for? [on hold]

    - by jozxyqk
    Long story short I'm quite confused as to exactly what is offered by domain registration and dns service sites. When I go to the url "http://google.com", my PC connects to a name server and gets the IP for "google.com", then connects to the IP and says, give me the page for "http://google.com". AFAIK there are many name servers and they all cache these bits of information in some hierarchical network, but ultimately a DNS record must come from a single source (not sure what this is called). There are different kinds of records, that might not an IP but an alias/redirect to other records for example. Lets say I want my own domain name for some server. Maybe it even has a static IP but I want a nicer thing for people to remember, or my ISP assigns dynamic IPs and I want a URL that always works, or my website is hosted on a shared machine so the browser needs to send "http://mydnsname.com" to the webserver to distinguish it from other requests to the same IP but for different sites. Registering a domain costs a small amount of money per year. Where does this money go, not that I'm complaining :P? Is that really all it costs to maintain the entire DNS system of nameservers? If I just register the domain and nothing else, what do I get? Is that just reserving a name or hosting WHOIS information or have I paid for a dns recrord to be hosted? Can a domain alone have a record, such as an IP or be an alias to another? A bunch of sites out there offer other services, in addition to domain registration (I'm assuming they register the domain through another party for me). One example is "dynamic DNS" (DDNS), but isn't this just a regular DNS record that's updated regularly? Does it cost extra to update more often? Without a DDNS, can a DNS record still point to an IP? I've also seen the term "managed DNS" and have no idea where that fits in.

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  • Using local DNS and public DNS during site development

    - by ChrisFM
    I'm a web designer and I often develop new sites for existing businesses. Sometimes I find it useful to point my DNS address (for my personal computer) to the development servers local DNS (instead of Googles 8.8.8.8 or the default isp's address). I like this as it let's me see that the new site's internal links, etc, operate before switching over the authorative DNS from the old site. However outgoing links (Like a Google map) would not route with my local dns. The first thing I thought was, oh I just need to fill out my DNS directory with Google and every other domain I might need to link to, wait... that sounds insane. I was wondering if anyone could give me insight into a better way or more functional way to get use local DNS addresses when they're available and public supplied DNS address when they are not? Kinda like a DNS to 'roll-over'? Or maybe a completely different approach to development all together. Thanks in advance for your insight. All the best!

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  • How to Switch Mac OS X to Use OpenDNS or Google DNS

    - by The Geek
    Are you still using your service provider’s DNS servers? If you’re on Comcast, you probably noticed their DNS servers completely died recently, taking down the internet—but anybody using the more reliable OpenDNS or Google DNS had no problems. Here’s how to set it up on your Mac OS X computer. There’s lots of other reasons to use OpenDNS or Google DNS other than just their rock-solid reliability—they are often much faster than your ISP’s DNS server, and in the case of OpenDNS, there’s loads of extra features like content filtering, typo correction, anti-phishing, and child protection controls. If you’re using Windows, be sure and check out some of our other articles on the subject: Speed Up Your Web Browsing with Google Public DNS Easily Add OpenDNS To Your Router Protect Your Kids Online Using Open DNS Otherwise, keep reading for how to set it up on your Mac. Latest Features How-To Geek ETC The Complete List of iPad Tips, Tricks, and Tutorials The 50 Best Registry Hacks that Make Windows Better The How-To Geek Holiday Gift Guide (Geeky Stuff We Like) LCD? LED? Plasma? The How-To Geek Guide to HDTV Technology The How-To Geek Guide to Learning Photoshop, Part 8: Filters Improve Digital Photography by Calibrating Your Monitor Exploring the Jungle Ruins Wallpaper Protect Your Privacy When Browsing with Chrome and Iron Browser Free Shipping Day is Friday, December 17, 2010 – National Free Shipping Day Find an Applicable Quote for Any Programming Situation Winter Theme for Windows 7 from Microsoft Score Free In-Flight Wi-Fi Courtesy of Google Chrome

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  • Trying to Host Server for External Access - Apache, VirtualBox & Portforwarding

    - by Tspoon
    Banging my head on the wall at this stage.... trying to host my Apache site on Ubuntu 12.10 with VirtualBox. Running Windows 8 host. Things I've done: Ensured Apache is listening on ports 80, 443 and 8080 (for thoroughness) tcp 0 0 0.0.0.0:443 0.0.0.0:* LISTEN 3355/httpd tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN 3355/httpd tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 3355/httpd tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 681/sshd VM is using bridged network connection Assigned a static IP to my Ubuntu VM, which can be accessed fine from within network. Forwarded TCP ports 80, 8080, 443 on the static IP of VM on my router Given my VM a static NAT Address Turned off Ubuntu firewall and router firewall Read on forums that my ISP (Eircom) allow port 80 to be used And I still can't access my site using the WAN/External IP (checked internally and using CanYouSeeMe.org). It says all the ports I mentioned are closed. I'm really at a loss of what to try next... Am I missing something silly here? Note: I haven't assigned a static IP address within the router, on within the VM. And DHCP server is enabled. Is that bad?

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  • How to speed up file transfer to/from Ubuntu Server 11.10 (wifi)

    - by Alexander
    I've been searching AU & elsewhere for the last day and a half. Haven't found an answer so I joined AU to ask for help. I'm hoping someone can point me in the right direction. Ubuntu Server 11.10 Samba VSFTPD Windows 7 PC 2 MacBook Pro - Snow Leopard/Lion 1 iMac - Lion Wireless LAN using DLink DIR-655 Link Speed: 195 Mbit/s on Mac - 54Mbps on Windows ISP Connection: Cable - 20 down/3 up No Domain Controller. All machines are members of the same workgroup. No matter how I connect I can't get better than about 700K transfer rate up/down. Mac/PC, SMB/ftp, Domain Name/Local IP I've tried different user accounts and using different folders, different volumes on the server. Nothing seems to make a difference. 700K up/down. Period. Any suggestions would be greatly appreciated. Thanks, Alexander EDIT: Using sftp now and uploading seems to peak at 980k. After about 5 minutes into a 650MB file, downloading is at 1072k and climbing about 500b/s every ten seconds. If any of that matters... I was expecting a lot faster than 1Mb tx rate. Am I off base here? EDIT: From all I've read so far, perhaps the speed isn't that bad. I only installed Ubuntu out of boredom this past weekend. The trouble is, I like it. Guess it's time to ditch the wifi and run some Cat 5.

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  • SOLID Thoughts

    - by GeekAgilistMercenary
    SOLID came up again in discussion.  What is SOLID?  Well, glad you asked, because I am going to elaborate on the SOLID Principles a bit. Initial Concept S Single Responsibility Principle O Open/Closed Principle L Liskov Substitution Principle I Interface Segregation Principle D Dependency Inversion/Injection Principle The Single Responsibility Principle (SRP) is stated that every object should have a single responsibility and should be entirely encapsulated by the class.  This helps keep cohesion.  Here is a short example, starting with a basic class. public class Car { decimal Gas; int Doors; int Speed; decimal RampJumpSpeed; } Now I will refactor a little bit to make it a bit more SRP friendly. public class Car { decimal Gas; int Speed; }   public class DuneBuggy : Car { decimal RampJumpSpeed; }   public class EconomyCar : Car { int Doors; } What we end up with, instead of one class, is an abstract class and two classes that have their respective methods or properties to keep the responsibilities were they need to be. The Open Closed Principle (OCP) is one of my favorites, which states simply, that you should be able to extend a classes behavior without modifying it.  There are a couple of ways one can extend a class, by inheritance, composition, or by proxy implementation.  The Liskov Substitution Principle (LSP) states that a derived class must be substitutable for their base classes. The Dependency Inversion Principle (DIP) states that one should depend on abstractions and not on concrete implementations. Finally, the Interface Segregation Principle (ISP) states that fine grain interfaces should be client specific. So hope that helps with kicking off a basic understanding of SOLID Principles.  I will be following this entry up with some new bits in the near future related to good software design and practice. Original post.

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