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• How to make sysctl network bridge settings persist after a reboot?

  - by Zack Perry

  I am setting up a notebook for software demo purpose. The machine has 8GB RAM, a Core i7 Intel CPU, a 128GB SSD, and runs Ubuntu 12.04 LTS 64bit. The notebook is used as a KVM host and runs a few KVM guests. All such guests use the virbr0 default bridge. To enable them to communicate with each other using multicast, I added the following to the…

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• Network Access: I can't access 192.168.1.101 from 192.168.1.102.

  - by takpar

  Hi, I'm running Ubuntu 10.04 on my PC with IP 192.168.1.101. every thing work fine, e.g. my web server is running and I can see http://localhost/ or http://192.168.1.101 properly. But the problem is that I cannot see my PC from my laptop at 192.168.1.102 e.g. at my laptop http://192.168.1.101 gives Connection timed out in browser. or trying to…

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• How do I get wireless to work on a Dell Mini 1018 with Realtek RTL 8188CE Network Adapter?

  - by Laurence Nagel

  My Dell Mini 1018 used to work fine with Ubuntu 12.04 with no problems connecting with the wireless card. Then I made the big mistake of attempting to disable WiFi by right-clicking on the wireless applet and un-checking "Enable Wireless." Since then, I cannot get wireless working again. The wireless applet reports that "wireless is disabled…

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• How migrate my keyring (containing ssh passprases, nautilus remote filesystem, pgp passwords) and network manager connections?

  - by con-f-use

  I changed the disk on my laptop and installed Ubuntu on the new disk. Old disk had 12.04 upgraded to 12.10 on it. Now I want to copy my old keyring with WiFi passwords, ftp passwords for nautilus and ssh key passphrases. I have the whole data from the old disk available (is now a USB disk and I did not delete the old data yet or do anything…

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• Network connection fails when downloading data

  - by Guus

  In the past few weeks, I've noticed my network connection becoming unstable while downloading files. I'm not sure how to diagnose this issue. I've found that my network connections appear to be temporarily unresponsive (for periods up to a minute or so) while I'm downloading a file (that's large enough to not be downloaded instantly). The…

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• NetworkManager detects no networks with a RTL8188CE

  - by Cormac O'Brien

  I'm on a 2011 Lenovo Thinkpad T420i with a Realtek RTL8188CE WiFi adapter. Here's the scenario: I pop in the Ubuntu LiveCD to install. Laptop detects all networks in range, I connect to my home network, internet working great. Once Ubuntu finishes installing, the home network I am connected to is the only one which appears in the applet…

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• Artificially create a connection timeout error

  - by Mark Ingram

  I've had a bug in our software that occurs when I receive a connection timeout. These errors are very rare (usually when my connection gets dropped by our internal network). How can I generate this kind of effect artificially so I can test our software? If it matters the app is written in C++/MFC using CAsyncSocket classes. Edit: I've…

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• Capture IP packets on Dialup connection - Windows 7

  - by Assaf Levy

  Our product utilizes (the wonderful) Winpcap to capture ip packets from all devices with an IP address and analyze them in real time. Unfortunately, we discovered that it does NOT capture any packets on dialup (e.g. PPP) connections on Windows 7, and that there are no near-term plans for enabling this (1). So we need something else.…

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• how to detect datacard connect and disconnect event on win32

  - by Vinayaka Karjigi

  Hi All, I have a data card, as soon as i insert the data card, i am getting the events by using wm_device_change event. But I also want to get event, when my data connect actually connects to out side world. I mean to say, as soon as we click on connect/disconnect button of data card,i want to get the event. exactly speaking…

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• SQL Server 2005 and 'General network error'

  - by Mariusz

  I know there is a lot of information in the Internet about solving this problem, but it didn't help me. My Delphi application uses dbExpress controls to access the database and execute SQL queries. Once every couple of days, however, it stops working because the database connection fails. This happens on several different…

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• Poll multiple desktops/servers on a network remotely to determine the IP Type: Static or DHCP

  - by Charles Laird

  Had a gentleman answer 90% of my original question, which is to say I now have the ability to poll a device that I am running the below script on. The end goal is to obtain IP type: Static or DHCP on all desktop/servers on a network I support. I have the list of servers that I will input in a batch file, just looking for…

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• transmit a java.lang.reflect.Proxy over a network

  - by panzi

  Is there a convenient way to transmit an object including its code (the class) over a network (not just the instance data)? Don't ask me why I want to do this. It's in an assignment. I asked several times if that is really what they meant and the didn't rephrase their answer so I guess they really want us to transmit code…

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• Local Network - Windows 7 and Vista can't see each other

  - by ca8msm

  I've got a strange issue at home that has been bugging me for weeks, but I really need to get it sorted now so I'll detail as much as I can and hopefully someone can spot what might might be wrong. I have a wireless router connected to the internet and 3 devices connected to it. They are: Name OS Network …

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• Calling a network State check from other activities

  - by Laurent

  I realize this question has been answered before but couldn't find an answer that deals with my specific case. I want to create a class called "InternetConnectionChecks" that will handle checking a network state and http timeouts. I'll call the methods twice in the app (once at the beginning to get data from a server, and…

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• VirtualBox reinstalling & updating has left me with Too Many Network Adapters. How Do i remove them?

  - by S3curityPlu5

  I have too many network adapters. I have had to reinstall, repair VirtualBox a few times, and I have three NICs in my laptop. I definitely don't need to have 14 bridged networking drivers though, and I cannot uninstall them. I only want to keep the new ones that came with VirtualBox 4.1.20. When I go into the registry…

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• How to get Windows 7 to automatically connect to an ad-hoc network?

  - by George Edison

  I have two machines - one is running Ubuntu 12.04 64-bit and the other is running Windows 7 Starter Edition (32-bit). The Ubuntu machine is connected to the Internet via the eth0 interface. That machine also has a wireless network interface (wlan0) that is currently functioning as an ad-hoc network. I can connect to…

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• How can we use Microsoft Groove with peers existing in both secure and unsecured network segments?

  - by MikeHerrera

  We have been instructed to implement a Microsoft Groove workspace. This would normally not be a concern, but the workspace will be utilized by machines which exist in our internal/restricted network as well as from peers from an outside/unknown network. Does there exist a best-practice for such an implementation?...…

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• Read/Write a file from/to network folder/share using Python?

  - by MA1

  How to Write/Read a file to/from a network folder/share using python? The application will run under Linux and network folder/share can be a Linux/Windows System. Also, how to check that network folder/share has enough space before writing a file? What things should i consider?

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• How to access a Windows Server 2008 network share from Windows Vista Home Edition?

  - by The Digital Ninja

  Is there any way to allow access a network share on Windows Server 2008 to a specific Vista Home machine/user? I have two Vista Home machines on my network (ugh) and I need a user from one of them to be able to access a network share on my new server 2008 DC. How ever I don't want to just allow "everyone" access.

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• how to create a 802.11n wireless network between laptops and asus n-13 wireless adapter ?

  - by xpugur

  I have a asus usb n-13 wireless adapter and 3 laptops in a home we try to create a network witn 802.11n standards but failed each time laptops have intel 5100 agn. We try to create network with wpa-2 personal encryption that also fails(couldn't connect) but with wep encryption connects but with 802.11g standard... so…

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• Why can't I access my own web server from my local network?

  - by frenetic

  I have a web server in my home network and I'm using ZoneEdit for dynamic DNS. It's accessible perfectly to everyone outside of my local network, but since I switched to a Gateway 2Wire DSL modem/router I'm unable to use the domain to access the server from my network. I can access it via a local IP or by putting it…

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• Why can't I access my own web server from my local network?

  - by frenetic

  I have a web server in my home network and I'm using ZoneEdit for dynamic DNS. It's accessible perfectly to everyone outside of my local network, but since I switched to a Gateway 2Wire DSL modem/router I'm unable to use the domain to access the server from my network. I can access it via a local IP or by putting it…

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• Sharing Windows Folders on a Network... other PCs see but can't access

  - by John

  I'm soooo tired of network setup issues. All I want to do is share a folder and all it's sub-folders so other PCs on my network can view and change this remote location. Why is it that setting a dir to "shared" doesn't actually make it usable in any way? The other PC can see the fodler but is unable to actually open…

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• How can I make desktop.ini work on network locations?

  - by Eric

  I've got a simple desktop.ini file that applies a folder icon. I'd like it to work on a network location, as we have an external hard drive connected to our network. However, the desktop.ini seems to have no effect on said network. What am I doing wrong?

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• Intel Network Connection: This device cannot start. (Code 10)

  - by harryuser

  I have a Intel® Desktop Board DP55KG (see http://www.intel.com/products/desktop/motherboards/DP55KG/DP55KG-overview.htm), which has a Intel 82578DC Gigabit Network Connection on board. Additionally, I have a Intel PRO/1000 PT Dual Port Server Adapter in a PCI express slot and I am running Windows 7 Professional…

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