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  • Looking for open-source solutions for a knowledge sharing website

    - by Bundarr
    There is a need in my workplace to setup a knowledge sharing site, a place where users can discuss projects they are working share documentation ask questions I am looking for a open-source system that answers these needs, and that can be setup in a week, and requires only PHP and MySQL. I am a Wordpress fan and developer and could easily implement such a system in Wordpress, however this system needs to be very simple to use for the technically challenged. Without customization, Wordpress users would still need to login to the "back-end" to post. I like the Stackexchange (OSQA) format, but these do not allow for file uploading out of the box. I do not have experience with Buddy Press, would this be an alternative?

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  • How to join a Windows Domain and Map Network Drives?

    - by AgainstClint
    I just installed the current build for Ubuntu on a partition for my work computer. I am a novice when it comes to Linux/Ubuntu, which is why I installed it along side windows. I want to learn how to operate and use Ubuntu much more than I do now, so I figured installing it and trying to do day to day functions here would be a "Thrown into the pool with sharks" way to do it, and I like that way. I did however have a few questions: We are on a Domain in Windows, is there any way to join that domain using the Ubuntu partition? We Also have 16 mapped network drives. I don't actually need ALL of them mapped for Ubuntu, but is there a way to Map at least one of them to see/use here in Ubuntu. Outlook Corporate email, how can I sign in/use it while...well, you get the idea. As I said earlier, I am VERY new to Ubuntu, i've only played around with it a bit at home and never at the office. If you could simplify it down for me a bit, that would be great.

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  • Network/browser issues after upgrade to 12.04

    - by Reg
    I let my laptop upgrade to 12.04. And have no network afterwards. I went through all the articles I could find in google. Right now, I can ping google, and yahoo, but not cnn.com for example or anything else. Firefox says it can't reach google.com or gmail.com (or anything, not even IP. /etc/network/interfaces dns-nameservers 8.8.8.8 <<<<<added auto lo iface lo inet loopback /etc/dhcp/dhclient.conf #prepend domain-name-servers 8.8.8.8,8.8.4.4; prepend domain-name-servers 127.0.0.1; <<<<< tried both /etc/NetworkManager/NetworkManager.conf with and without dns=dnsmasq commented out. I can ping my wireless router and connect to it just fine. Have tried proxy/noproxy. This looks like After Upgrade to 12.04 - cannot connect to network but no answer there. I would hate to do a fresh install. Any assistance appreciated.

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  • Fail to access Network options

    - by Konstantinos Marinis
    I am trying to use OpenDNS for my newly installed Ubuntu 12.10... However I cannot insert custom DNS addresses... I am accessing Network, then at my wireless connection, no matter how many times I press the "options" tab at the low right corner (I am not using english Ubuntu, so the button might have a different name), nothing happens. Any ideas why or how should I configure my OpenDNS connection?

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  • How can I refactor my code to use fewer singletons?

    - by fish
    I started a component based, networked game (so far only working on the server). I know why singletons can be bad, but I can't think of another way to implement the same thing. So far I have: A GameState singleton (for managing the global state of the game, i.e. pre-game, running, exiting). A World singleton, which is the root entity for my entity graph An EntityFactory A ComponentFactory I'm thinking about adding a "MessageDispatcher" so individual components can subscribe to network messages. The factories do not have state, so I suppose they aren't so bad. However, the others do have global state, which is asking for trouble. How can I refactor my code so it uses fewer singletons?

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  • error: gnutls_handshake() falied

    - by Nyambaa
    When I try to connect any HTTPS server with git, it gives following error: error: gnutls_handshake() failed: A TLS packet with unexpected length was received. while accessing ... fatal: HTTP request failed So I think that maybe some packages that related the gnutls_handshake has been broken. So I want to reinstall that packages, which packages can be related this errors? or how do I fix this kind of error?

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  • Configuring network to set wlan0 as primary

    - by Sheed
    I recently had to rebuild my pc and decided to go for ubuntu 14.04. I think the mistake I made was I started from a 12.04 install disk instead of the 12.10 disk I'd used previously and when given the option set my primary connection as ethernet (because the wireless option didn't work). After upgrading to 14.04 etc, I managed to get the wireless working, or more using steps like ifconfig -a and the likes I managed to prove that the wireless card etc. is all installed and working. However every time I boot without a hard wired connection plugged in I get the message "waiting for network configuration". I can then once it's booted without a network get my wirless working using sudo ifconfig wlan0 up iwlist wlan0 scan This seems to kick the wireless module into life and it appears in the GUI and I can then select a network, however all the options like edit network and disconnect etc are all greyed out. What I would like of course is if the WLAN0 was just set as my primary default network so I've been looking for a solution to this and it would seem that I need to adjust the old /etc/network/interfaces file but when I try to do so using the sudo vi /etc/network/interfaces command I, well I simply have no idea what I'm doing. Other than that typing :q! gets me out of there before I do to much damage! As far as I can tell (by navigating to the file in the GUI) the output of my /etc/network/interfaces is as follows: (obviously not including the " in each line that's just to break the heading rule of the #) "# This file describes the network interfaces available on your system "# and how to activate them. For more information, see interfaces(5). "# The loopback network interface auto lo iface lo inet loopback "# The primary network interface auto eth0 iface eth0 inet dhcp If this is the case then this clearly doesn't contain what it should do but I don't how to fix it. Nor do I even know if I'm on the right track. Any help would be appreciated thanks :)

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  • Common Network Administrator Tools

    - by No Time
    I would like to make a custom clump of Network Admin packages, to be able to carry on a thumb drive, to administer Debian based machines. Examples of what I would include so far: nmap traceroute vnstat zenmap * I know every situation may be different, but I would like to build a toolbox I could bring everywhere, and am looking for advice on other tools which would work. (If there is a similar question, I am fine being directed there)

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  • My ethernet connection is not working but it is detected by my computer

    - by smithy545
    I'm setting up an old computer with ubuntu server 12.04. I wiped the drive and went through the installation fine but afterwards the ethernet would not work. It's physically connected to the router and the card is recognized by lspci(SiS 900) but it won't connect at all. I've plugged in and installed the drivers for a wifi adapter and it's worked with the same router. Just so you know I've turned it on and off plenty of times. Any help would be appreciated.

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  • Why is user "lightdm" trying to log into my SBS 2003?

    - by user652740
    I have 7 Ubuntu desktops connected to a SBS 2003 using Centrify. I have a rather weird scenario, whereby a user with the name lightdm is trying to log into our server, possibly automatically. I thought lightdm was the session manager, not a user? Does anybody know what could be causing this? There is no user: "lightdm" on the server and the problem only comes from one of the 7 internal desktops connected to the server (its IP address is in the local network).

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  • Connection make b/w iphone to windows pc-rajay [on hold]

    - by Rajay
    I Need to create connection between ios to windows by using socket programming in ios. I'm trying to to use an application to communicate with Windows via sockets. At the minimum, I'm trying to at least figure out how I can create a connection from the iPhone (maybe using the iPhone to ping the Windows machine?) I'm not really clear on where I need to start. I'm pretty new to iOS development in general, and brand new to socket/network programming. I've tried several tutorials that haven't gotten me far. My goal is: Connect to a server via sockets (the server will be a Windows machine with a service waiting for incoming connections from the iPhone) If possible, I would like to write/build the client piece first, but I have been lost thus far. Hopefully the nice folks in the SO community can lend a hand and point me in the right direction.

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  • How do I turn off WLAN automatically when LAN is connected?

    - by derroman
    I use my Thinkpad laptop with a docking station. The docking station is connected to my router via LAN. When I walk around the house I use my laptop with WLAN. Is it possible (and how) to manage these devices with a script or something to work like this: If a LAN-Connection is up, the OS should turn off Wifi and if LAN-Connection gets lost (undocking) Wifi should turn on automatically. I use Ubuntu 11.04 64bit with Gnome 2. The system works on an Lenovo ThinkPad R500 with. WLAN-Device: Intel Corporation PRO/Wireless 5100 AGN [Shiloh] LAN-Device: Broadcom Corporation NetLink BCM5787M Gigabit Ethernet PCI Express (rev 02) Any help would be appreciated. Thanks.

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  • Why does Ubuntu really slow down the rest of my home network?

    - by tympaniplayer
    I have a ubuntu Dekstop and a Windows 7 Desktop. The windows 7 is connected via wireless adapter and the ubuntu dekstop is connected via ethernet. The wireless adapter is capable of 300Mbps link speed. When my ubuntu is connected to the interet, the network becomes very very slow. I have a 15 Mbps cable broadband connection. I have had many devices connected at one with no problem, yet this one connection seems to be wreaking havoc.

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  • android client not working [migrated]

    - by Syeda Zunairah
    i have a java client and c# server the server code is static Socket listeningSocket; static Socket socket; static Thread thrReadRequest; static int iPort = 4444; static int iConnectionQueue = 100; static void Main(string[] args) { Console.WriteLine(IPAddress.Parse(getLocalIPAddress()).ToString()); try { listeningSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); //listeningSocket.Bind(new IPEndPoint(0, iPort)); listeningSocket.Bind(new IPEndPoint(IPAddress.Parse(getLocalIPAddress()), iPort)); listeningSocket.Listen(iConnectionQueue); thrReadRequest = new Thread(new ThreadStart(getRequest)); thrReadRequest.Start(); } catch (Exception e) { Console.WriteLine("Winsock error: " + e.ToString()); //throw; } } static private void getRequest() { int i = 0; while (true) { i++; Console.WriteLine("Outside Try i = {0}", i.ToString()); try { socket = listeningSocket.Accept(); // Receiving //byte[] rcvLenBytes = new byte[4]; //socket.Receive(rcvLenBytes); //int rcvLen = System.BitConverter.ToInt32(rcvLenBytes, 0); //byte[] rcvBytes = new byte[rcvLen]; //socket.Receive(rcvBytes); //String formattedBuffer = System.Text.Encoding.ASCII.GetString(rcvBytes); byte[] buffer = new byte[socket.SendBufferSize]; int iBufferLength = socket.Receive(buffer, 0, buffer.Length, 0); Console.WriteLine("Received {0}", iBufferLength); Array.Resize(ref buffer, iBufferLength); string formattedBuffer = Encoding.ASCII.GetString(buffer); Console.WriteLine("Data received by Client: {0}", formattedBuffer); if (formattedBuffer == "quit") { socket.Close(); listeningSocket.Close(); Environment.Exit(0); } Console.WriteLine("Inside Try i = {0}", i.ToString()); Thread.Sleep(500); } catch (Exception e) { //socket.Close(); Console.WriteLine("Receiving error: " + e.ToString()); Console.ReadKey(); //throw; } finally { socket.Close(); //listeningsocket.close(); } } } static private string getLocalIPAddress() { IPHostEntry host; string localIP = ""; host = Dns.GetHostEntry(Dns.GetHostName()); foreach (IPAddress ip in host.AddressList) { if (ip.AddressFamily == AddressFamily.InterNetwork) { localIP = ip.ToString(); break; } } return localIP; } } and the jave android code is private TCPClient mTcpClient; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); final EditText editText = (EditText) findViewById(R.id.edit_message); Button send = (Button)findViewById(R.id.sendbutton); // connect to the server new connectTask().execute(""); send.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { String message = editText.getText().toString(); //sends the message to the server if (mTcpClient != null) { mTcpClient.sendMessage(message); } editText.setText(""); } }); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.main, menu); return true; } public class connectTask extends AsyncTask<String,String,TCPClient> { @Override protected TCPClient doInBackground(String... message) { mTcpClient = new TCPClient(new TCPClient.OnMessageReceived() { @Override public void messageReceived(String message) { publishProgress(message); } }); mTcpClient.run(); return null; } @Override protected void onProgressUpdate(String... values) { super.onProgressUpdate(values); } } } when i run the server it gives output of try i=1. can any one tell me what to do next

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  • Handling timeout in network application

    - by user2175831
    How can I handle timeouts in a network application. I'm implementing a provisioning system on a Linux server, the code is huge so I'm going to put the algorithm, it works as like this Read provisioning commands from file Send it to another server using TCP Save the request in hash. Receive the response then if successful response received then remove request from hash if failed response received then retry the message The problem I'm in now is when the program didn't receive the response for a timeout reason then the request will be waiting for a response forever and won't be retried. And please note that I'll be sending hundreds of commands and I have to monitor the timeout commands for all of them. I tried to use timer but that didn't help because I'll end up with so many waiting timers and I'm not sure if this is a good way of doing this. The question is how can I save the message in some data structure and check to remove or retry it later when there is no response from the other end? Please note that I'm willing to change the algorithm to anything you suggest that could deal with the timeouts.

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  • Linux does not connect to wireless network under Hyper-V with Windows 8

    - by Graznarak
    I have a VM I am trying to run under Hyper-V on Windows 8 Pro. I am using an Asus PDE-N15 adapter on the host machine. When I run Windows 8 in the VM it connects to the network and everything works. When I use Linux (Ubuntu 13.04 32-bit, Ubuntu 13.04 64-bit, Fedora, CentOS) it will not connect to the network. When I run ifconfig I see the adapter show up as eth0 with the correct HWaddr. I see that TX bytes 0, and RX bytes == 0. Could anyone help me figure out how to get this to work?

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  • Is this a b43 driver problem?

    - by Nullet
    I have 13.04 on a Dell Inspiron 1564 with Broadcom 4312 WiFi card. The wl drivers cause kernel panic on linux-3.8 so I succesfully installed the b43 driver a couple of months ago. Now I have changed ISP and got a new router, and the connection drop when downloading software from internet to a 2008r2 using Remmina Client, and apt-get install on virtual machines in virtualbox. I have no idea why this suddenly became a problem.. My phone does not loose the connection, just Ubuntu. Output from /var/log/syslog after lost connection rfkill list(after disconnecting): 0: phy0: Wireless LAN Soft blocked: yes Hard blocked: yes I can use NetworkManager to disable wireless and then enable wireless to connect again. rfkill ublock all/wifi/0 removes only Soft blocked. lshw -C network *-network description: Wireless interface physical id: 4 logical name: wlan0 serial: 78:e4:00:78:d2:05 capabilities: ethernet physical wireless configuration: broadcast=yes driver=b43 driverversion=3.8.0-32-generic firmware=478.104 ip=10.0.0.3 link=yes multicast=yes wireless=IEEE lspci 04:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g LP-PHY (rev 01) After waking from suspend and when booting, it takes about 40 sec to get network connection. This has been a problem all along AND a different question, but I mention it anyway.. cus it's annoying! Please take a look and hopefully someone spot a problem! Thanks!

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  • Upgraded from 11.10 to 12.04 now no network access

    - by MadeTheLeap
    A few weeks ago I decided I should enter the Linux world and read that Ubuntu is the most widely used release. I installed version 11.10 and it worked perfectly. Just this past week I decided I would do the upgrade to 12.04. The upgrade process itself worked fine. However, when I logged in I no longer had a network connection. I am running an AMD-based PC with a D-LINK DFE-530TXS network card and as I said, it worked fine in 11.10. I have scoured the Internet and come across a thousand slightly varying solutions, but they are too convoluted for someone new to Linux. Not because I can't follow the steps, but because most of the tools/utilities that are referenced (e.g. to compile, install, etc.) are not available when I use the stated steps in the solutions. So....should I re-install 11.10 or is there hope in getting this version to use the NIC that I know works. I have the latest driver from d-link for my NIC but I have no idea how to 'install' it for Ubuntu 12.04 to use. I know you will require additional information, but I wasn't sure what you would need. Thanks in advance.

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  • Pinging/connecting to server.domain.local never works, but server does when the search domain is specified

    - by SuperMatt
    This is a bit of a weird one. I'm running ubuntu on a Windows domain. If I type "ping server" I can ping correctly and I can connect without any problems. It looks up my search domain (domain.local) and everything is hunky dory. Problem is when I try to ping server.domain.local. It just can't look up the server and comes back with "ping: unknown host server.domain.local" Part of me thinks that the name servers aren't set correctly, but I wonder if there is something I can do to get around it.

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  • eth0 missing after upgrading from Hoary to Dapper

    - by Twisol
    I'm trying to upgrade a fairly old server that's been running Hoary for the last five years. I followed the directions on the wiki, but when I restarted after upgrading to Dapper, eth0 disappeared from ifconfig -a. I can see two ethernet adapters in lspci and lshw, and if I put in an Ubuntu 10.10 LiveCD it registers eth0 and eth1 perfectly well. Their MAC addresses also match what's in /etc/iftab. It was working fine before the upgrade, and I have no idea what else I should be trying at this point. The server is entirely cut off from the network right now. EDIT: /etc/udev/rules.d/70-persistent-net.rules doesn't exist, either.

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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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  • Since my upgrade to 12.10 I don't have an Internetconection, but a networkconnection. Why? [closed]

    - by Klemens
    Possible Duplicate: There's an issue with an Alpha/Beta Release of Ubuntu, what should I do? Because of a few problems i had with ubuntu, I hoped that they would solve themselve by upgrading my system to v12.10. Now they are solved, jeeehaaa, but now I have a new problem. My Network-manager tells me, that I'm connected, but I don't have an Internetconnection. And now I don't know what to do. Help please. By the way, I'm online with my netbook.

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  • Connecting 2 PCs using USB-to-USB (male-male) cable

    - by Amirizzuan
    I found this while Googling around: http://www.hardwaresecrets.com/article/Connecting-Two-PCs-Using-a-USB-USB-Cable/248 But then, the solution given in the article is using Windows. Is there any Ubuntu equivalent to this? I would really love to SSH into my Ubuntu server via my Ubuntu laptop, just by connecting one end of the male USB to my laptop, and another end of the male USB to my server. I know I can always SSH into my server via the network, but then in this case of mine, there are cases the server is inside a secluded-secured network server room, and the only way for me to check things out is to go into the server room and open the keyboard console and monitor there. But, if I can just bring my laptop inside and connect to the USB there, then that would be cool. Any idea guys?

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  • Internet connectivity issues

    - by Fishies
    I'm on 12.04, I upgraded a month ago from Windows 7 on my Sony VAIO. Everything is great except after the upgrade, I encountered Internet connectivity issues. When browsing the web or loading videos, my Internet will stop working in the middle and come back after a period of 30 seconds to 2 minutes or sometimes it just won't and I'll have to disconnect and re-connect to the network. I've noticed the issue when sending e-mails as well, they just won't send at all. It says sending request and the circle keeps spinning slowly until I get to a page where it says the page wouldn't load and gives me the reason DNS error. I tried setting OpenDNS as my DNS provider but that didn't help.

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  • Routing Internet traffic over specific network interfaces [on hold]

    - by dipamchang
    I want to route my internet traffic over all my available connections (like LAN and Data card(3G)), based on conditions like, if a website is blocked over LAN, that traffic goes through Data Card (or other available internet connection). My ultimate motive is to integrate this feature in my web browser which I have already built using C# and .Net framework. I have found that one can add a route by using the following cmd command - route add DestinationIP mask subnet InterfaceGatewayIP but I am stuck as to how should it be implemented using C#?

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