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• Connectify Dispatch Links Multiple Network Nodes Into a Mega Connection

  - by Jason Fitzpatrick

  Connectify Dispatch wants to change the way you interact with the networks around you by making it dead simple to mesh all available Wi-Fi, Cellular, and Ethernet connections into a massive and stable pipeline. Dispatch makes it open-and-click easy to hook up multiple Wi-Fi nodes, your cellphone, and even Ethernet connections into a single blended connection. While the video above gives a great overview of the process, check out the video below to see it in real world action: The project is currently in the last phase of KickStarter funding, so now is a great time to score Connectify Dispatch at a steep discount–pledging as little as $10 to fund the project, for example, scores you 50% of a 6-month Pro license. Hit up the link below to read more about the project, check the KickStarter status, and see all the neat features in the development pipeline. Dispatch: The Internet, Faster. [KickStarter] HTG Explains: What The Windows Event Viewer Is and How You Can Use It HTG Explains: How Windows Uses The Task Scheduler for System Tasks HTG Explains: Why Do Hard Drives Show the Wrong Capacity in Windows?

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• How to share my wireless connection to other wireless devices

  - by user89464

  I am aware that I can share my wired internet connection to other devices wirelessly, but what I need now is a little more complex. I am limited to one device over the wifi but would like my macbook to have internet as well. It's in another room so ethernet is not really an option. I really would like to share the wireless from my ubuntu (it's on more) to other wireless devices. After some light googling I can't find anything even remotely useful as they all involve an ethernet cable at some point. Has anyone here had any luck with anything similar? I am running 12.04 LTS just for reference and have a Belkin G wireless USB device. If anyone knows a possible procedure I can find out about the chipset etc. if needed. I understand there may be hardware limitations.

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• FTP over ssh hangs on "Connection established: Waiting for Welcome Message"

  - by Siriss

  I have looked far and wide and have not quite found the answer. I am running ubuntu 11.10, openssh, and vsftpd. I am trying to configure my FTP to tunnel over ssh. My ssh connection works just fine and I can create the tunnel to my FTP port. When I go to use Filezilla to connect, it hangs at "Waiting for Welcome Message". I think it is an iptables issue, but I can't seem to figure out what needs to be changed. When I take iptables down, it connects just fine. I don't want to open any more external ports, just my one SSH port, and I can't seem to get it right on the internal port forwarding rule. I always end up opening it to the outside. I would love some help if anyone has any ideas and I hope I have made it clear. Thank you in advance!!

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• Ubuntu 11.10 is not detecting wired connection on Lenovo G580

  - by Dilip

  I am not able to see wired connection options in header menu. I can see wireless option but still It is not working. Could any one suggest what I am missing? Please find my ifconfig output: =================================== root@rails-dev:/home/rails_work/rdfnet# ifconfig lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:41944 errors:0 dropped:0 overruns:0 frame:0 TX packets:41944 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:4602835 (4.6 MB) TX bytes:4602835 (4.6 MB) ===================================

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• Sharing SCTP connection with multiple threads

  - by poly

  I have an application that needs to run in SCTP environment, I have a question in sharing the connection among multiple threads for packet receiving only, I've tried with the sctp_sendmsg and it worked without even locking the threads (is that been taking care of by the OS, in other words, is it thread safe to do that). I've tested many cases with the send and I can't see them out of sync. Anyway, back to the receiving, is it possible to create multiple threads and send each thread the sctp descriptor to start receiving messages? Do I need a lock here or is it ok without lock? I'm using C in linux.

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• How To Troubleshoot Internet Connection Problems

  - by Chris Hoffman

  Internet connection problems can be frustrating. Rather than mashing F5 and desperately trying to reload your favorite website when you experience a problem, here are some ways you can troubleshoot the problem and identify the cause. Ensure you check the physical connections before getting too involved with troubleshooting. Someone could have accidentally kicked the router or modem’s power cable or pulled an Ethernet cable out of a socket, causing the problem. Image Credit: photosteve101 on Flickr 7 Ways To Free Up Hard Disk Space On Windows HTG Explains: How System Restore Works in Windows HTG Explains: How Antivirus Software Works

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• Not getting auto login page on my Hathway internet connection

  - by Vasu

  I am using firefox browser and my laptop is DELL Inspiron 1545. I am using Hathway internet connection. When i switch on my internet modem and try to use(browse any website), for the first time in a day it will redirect me to Hathway's login(something like "login.hatyway.com/.....") page automatically. It is working fine in windows but not in Ubuntu 11.10. So I go back to windows every time and then login and then i come back to ubuntu to use. Could you please let me know if there is a solution to this problem.

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• Sidestep Automatically Secures Your Mac’s Connection on Unsecure Networks

  - by Jason Fitzpatrick

  If you’re wary of browsing on wide open public Wi-Fi networks (and you should be), Sidestep is a free Mac application that routes your connection on an unsecure network through a secure proxy. Sidestep automatically detects when you are on an unprotected wireless network and forms an encrypted tunnel to the proxy you specified during setup. Anytime you login a wide open Wi-Fi node (such as at a coffee shop, airport, or other public area) you won’t be broadcasting your login credentials and other personal information in what amounts to plain text into the air around you. Anyone snooping on you or the network in general will simply see your stream of encrypted data going to the proxy. Hit up the link below to grab a copy and read additional information about setting up the program and finding/configuring a proxy server. Sidestep is freeware, Mac OS X only. Sidestep [via Gina Trapani] How to Create an Easy Pixel Art Avatar in Photoshop or GIMPInternet Explorer 9 Released: Here’s What You Need To KnowHTG Explains: How Does Email Work?

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• Internet Connection Problems

  - by Confused One

  I just installed Ubuntu 11.04 onto a laptop. There is no list of automatic connections when I click on the internet connection symbol. Enable Wireless was unchecked, so I checked it. However, it continues saying "wireless is disabled." Soft is blocked, and when I tried rfkill unblock wifi it told me that the device was not ready. I tried to counter this with what I found on this thread but nothing worked. I have tried manually entering my Wireless information, but this does not help. Is there a solution?

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• Remote Desktop Connection Manager

  - by Robert May

  For years, I’ve been using the “Remote Desktops” mmc plugin to manage servers in our infrastructure.  I’ve upgraded to Windows 8 and Remote Desktops is nowhere to be found!  I search and searched and came across a forum listing saying “Why don’t you just use Remove Desktop Connection Manager?” I downloaded it and started using it and its WAY better than Remote Desktops!  I’m glad they took it out and I discovered this tool.  I wish I had discovered this two years ago! Technorati Tags: System Administration

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• Specific website not working on my connection [closed]

  - by Tsury

  For some reason, the website http://www.woopra.com/ doesn't work well (shows as plain html, no css/images/JS) on my computer and my Android tablet (they both share the same internet connection). It does however, work on my WP 7.5 phone (3G). When I try to set a wifi hotspot and use the tablet it still doesn't work (tried to clean cache). I tried FF, Chrome and IE (multiple versions). What is going on here? I'm clueless! Thanks.

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• Connection timed out when connecting to a website (ubuntu only)

  - by S.C.

  I've been struggling with these problem for months. It happens randomly and it happens on Ubuntu only (12.04). It's about my hosted company website. Some facts: I can ping it I can traceroute it I can dig it I can make a nslookup But whenever I try to open it in Chrome it won't open. I also tried using polipo but got same connection time out issue. I'm connected through a LAN network and I'm experiencing no problem with any other website. Is there a more accurate debugging technique I'm missing other than pinging/tracerouting, etc.?

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• Broadcom bcm4313 Ubuntu 13.10 connection time out

  - by Wahtever

  After upgrading to Ubuntu 13.10 I keep getting connection timed out every few seconds at which point i have to disconnect and reconnect to the WiFi network. The WiFi card worked fine on 13.04 with the bcmwl-kernel-source installed but giving problems on 13.10: *-network description: Wireless interface product: BCM4313 802.11bgn Wireless Network Adapter vendor: Broadcom Corporation physical id: 0 bus info: pci@0000:02:00.0 logical name: eth1 version: 01 serial: c0:14:3d:cc:c9:c7 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=wl0 driverversion=6.30.223.141 (r415941) ip=192.168.1.4 latency=0 multicast=yes wireless=IEEE 802.11abg resources: irq:17 memory:f0500000-f0503fff How can i fix this? Thanks

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• MacMini (running Ubuntu 14.04) loses wlan connection when uploading larger files (several 100 mb) via ownCloud

  - by ManekenT

  I installed Ubuntu 14.04 on an old MacMini with the intention of running it as a homeserver. Additionally I installed ownCloud and tried to sync some files both from a laptop running elementaryOS and a desktop running windows 7. Syncing smaller files workes like a charm (4000 files at <10mb each) but when it comes to bigger files (1 GB ubuntu iso e.g.) the upload failes after 20-100mb. I can't ping the server anymore and the server can't ping me. It still shows up in our router as connected though. Disconnecting and reconnecting the wlan connection fixes the issue until the next attempt at syncing. Edit: I also had to install the wlan driver with this manual: https://help.ubuntu.com/community/MacBookPro8-2#Wireless

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• Ubuntu 12.10 Network Connection menu GUI doesnt work properly

  - by wax

  Many a times I have seen When I click on network connection(besides volume icon), I am unable to select any options. When I hover over VPN connections, the list shows nothing. I have added many VPNs. Network menu becomes non responsive to any clicks. This is annoying because I am not able to connect to any of the VPN connections. "Enable Wireless", "Edit Connections" or any other option doesnt work at all. Restarting ubuntu fixes this issue. But problem starts randomly again and restarting my laptop is the only way to fix it. Is this a known bug? Any ways to fix this prob?

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• SSH refusing connection after changing default port

  - by wm90

  currently I'm handling 2 server (A and B). In server A I installed Ubuntu 12.10. I changed the SSH port into 1198 and it works fine. In server B it has been installed with Ubuntu 11.04. I tried to change the port number into 1198 as well but it refused the connection when I tried to connect again using Putty. I change the SSH configuration on /etc/ssh/sshd_config and I did restart the SSH using sudo service ssh restart. I was thinking its because of firewall allowed port but the firewall shows inactive when I run sudo ufw status. Any idea why this can happened?

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• Internet connection crashes while wifi / lan stay connected

  - by pirad

  I am connected to a router by wifi or lan. But every few moments (sometimes seconds, sometimes half an hour) my connection to the internet breaks down. So in one moment I can surf with my firefox and have ping times of 20 ms (wifi) to the google server. And in the next moment I can't open any pages in any browser and the ping shows no new messages first and then "Destination Host Unreachable". This is especially odd as another computer or my smart phone stays connected at the same time to the same network and seems to notice nothing. So I have a problem independend of wifi or lan drivers but with something else. Where should I look for logs that could tell me more information? I can't find some in syslog. Just if I reconnect to the router (wich works for another few moments) there are a lot of informations. But everythin is okay then.

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• Slow internet connection with a Digicom Wireless 11n 300m (rt2800)

  - by beboka8

  After upgrading to ubuntu 11.10 the speed of my internet connection has considerably reduced. I surf on internet using a wireless usb adapter Digicom Wireless 11n 300m which works with rt2800usb driver. The fact is, on the installation cd there's no tracks of that driver but instead of it there is another one called rt2870 which I tried to load using ndiswraper, but it did not recognize any hardware. I'm not sure the solution of my problem is simply changing the driver, but I have no other ideas. Can anyone help me?

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• Webmin no longer works - connection rejected

  - by Omeed

  I've had webmin installed on my 12.04 server and everything has been fine until recently. Now when I navigate to https:// myip:10000 I get a message saying the connection attempt is rejected. The last thing I did was set up a cron job to start utorrent webUI. I tried reinstalling but no change. When I check with netstat I see a webmin entrance on port 10000. I've also reset the iptables and allowed everything. I'm at a loss as to what to do now.

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• How to debug wifi connection?

  - by mmb

  I am using Ubuntu's Network Manager to connect to a local wifi router. My problem is, that it often disconnects without any visible reason (router is on, internet connection seems to be working, wifi diodes are blinking). I mostly have to disable wifi from Network Manager, enable it again to get wifi connecting again. Plus I am often experiencing Network Manager trying to connect to my wifi, trying several times but then giving up. I even tried an external usb-wifi card, but with the very same results. My question is: How can I debug this? Which logs should I read to see what is really happening when all of these errors occur - so I can post them here and see how to proceed?

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• no more network connection Ubuntu 12.04 Server

  - by gerpol

  Since yesterday my 12.04 web server refuses to connect to the Internet. Also when I boot I'm seeing the "waiting for network config" message. After logging in I'm getting an error about the packages. Error text: E:Encountered a section with no Package: header, E:Problem with MergeList /var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_precise-updates_universe_i18n_Translation-en, E:The package lists or status file could not be parsed or opened. This is a production web server so I really could use some help with enabling the network connection again.

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• D-Link DIR-300 slows down / loses network

  - by basic6

  Hi there, there are 2 buildings (A and B). In bldg A is an open WLAN (which I'm allowed to use btw). In bldg B is a computer that I want to connect to that network. So I flashed an old D-Link DIR-300 AP with DD-WRT, mounted it to the wall (bldg B) near a window, attached a 13 dBi directional antenna (pointing to bldg A) and configured it as AP client in that wireless network. Then there's another AP, connected to the D-Link AP, acting as standard access point, which the computer is connected to. That's basically working so far, but: Every now and then the connection is lost. Not the connection between the computer and the D-Link (I can access the DD-WRT admin page normally) or the connection between the D-Link and the WLAN (in Status - Wireless it says it's still connected to the network), but when I want to access a web page (which only works if I'm connected to the wireless network from bldg A), my Firefox keeps "Looking for" (name resolution) without finding anything. When I reset the D-Link (power off, power on) in this situation, after some moments, everything's working fine again (Internet access). I've no idea why this is happening, but usually it's at most every few weeks (most times when nobody was using the computer, so no traffic). Compared to the connection speed when I connect directly to the WLAN in bldg A (Laptop), the speed in bldg B is rather slow, but I have the impression that this difference is worse in the last few days. A few minutes ago, I got 582 KB/s down and 911 KB/s up in bldg A (directly/laptop) and 84 KB/s down and 9 KB/s up in bldg B. The speed in bldg B used to be way higher (I remember 200 KB/s up) while the actual network speed in bldg A was lower than it is now (close to those 200). I'm aware that the wireless connection between those buildings should slow things down, but I'm wondering why this difference has become that extreme. Thanks for any tips... Update: I currently want to upload a large file (1.5 GB) via FTP (FileZilla). Since that caused the D-Link to disconnect (as described in first post), I took my laptop to bldg A, connected directly to the original WLAN (bypassing my D-Link) and tried the same upload. Guess what - same issue: At some point the connection is dead (at this point I would have reset my D-Link if I was connected to it). Just as the D-Link, my laptop is still connected, but not even name resolution is working ("Looking for..." in Firefox). After reconnecting, it's working again. Maybe my D-Link isn't the problem at all...

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• VPN Network intermittantly fails to provide internet: What could be possible causes

  - by Jake M

  We have a small office with our own VPN setup. We occasionally experience failures in our internet connection where we cannot access the internet. Most of the time the internet connection will resume by itself(without me doing anything) after a period of time(10 mins). Would you be able to suggest possible causes of the connection failure so I can then go and run some tests? Our network architecture is like so: A 'Billion' brand router that is connected to the internet via phone cable and then connected to our Cisco Switch A Cisco Switch/Bus which is connected to all our office nodes, our external harddrive and also to our router as stated above. All connections are via ethernet cable A series of work computers(nodes) connected via ethernet cable to the Cisco switch. Our ISP is TPG Australia We have a Virtual Private Network All the ethernet cables are about 3 years old Do you think that the causes of our intermittant connection problems could be due to the following: Data collisions in the ethernet cables Old/Faulty ethernet cables Our ISP has bad service Can you think of any other causes of the problem?

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• How can you get internet on a train?

  - by Ivan Petrushev

  Hello, There are some rail road companies offering an internet connection to their customers. How can they do it? What kind of internet connection can they have on board a moving vehicle? Satellite connection? I think the train movement will displace a mounted dish and it also will have to be constantly moved around to find the satellite as the train makes turns. Speed isn't greater either. GSM connection - EDGE, UMTS, CSD? 3G coverage often is not an option in rural areas where train goes. These kinds of technologies doesn't offer good speed. WiMax? Wikipedia article on it says it could provide 40Mbps for long distances. Is that what they use mostly? Some kind of power line internet carrier?

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• ADSL to T1, Is it worth it for us?

  - by Jack Hickerson

  The company I work for has roughly 45-55 simultaneous users (local and remote/VPN) logged in at a given time. We currently subscribe to an ADSL connection but we have been experiencing slower upload/download speeds as our number of users increase. So, I have a few questions with regards to upgrading our connection to a t1 line. I am aware that the number of channels on a t1 line are much greater then that of our current ADSL connection, but I have heard that the number of active users on a t1 line should be no greater than ~30 for optimal performance. I would think this statement is dependent on what each user was using the connection for and could change depending on this variable. That being said, I have tried to break down how the line would be used in our organization based on our major departments: Sales (~60% of total users) - Everyday surfing, email, research, occasional streaming media Marketing (~15% of total users) - Heavy reliance on uploading/downloading, streaming media, file sharing Other (~25% of total users) - email, rare use of any connection intensive activities. I have considered keeping the ADSL for our local users and dedicating the t1 to our remote users (or vice versa) but the cost is significantly higher then what we had hoped for. All factors being equal (# of users, frequency of downloads/uploads from our current activities) Would you suspect a significant performance increase in making the transition to a t1 line from our current ADSL line? What are your thoughts or recommendations?

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