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  • No internet access on Windows 7 - part 2

    - by Vnuk
    This is a continuation of my previous question. The problems started when I turned on my wireless connection for the first time. Since then, every time I boot my Windows 7, my LAN connection does not have internet access. In my previous question, I got a key answer (route delete). Now my procedure to get LAN internet connectivity (local network works fine) when I boot looks like this: Power on WLAN Disconnect LAN cable Power off WLAN Execute route delete 0.0.0.0 if 11 Connect LAN cable Now my LAN connection has internet access. Another behavior that I can't explain - while my LAN connection has no internet access, Network and Sharing center refers to it as Unknown network, with a public icon. When I go through the fore mentioned procedure, it is referred to with my home WLAN network name, with status connected, and the Unknown network disappears.

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  • How do I bridge my wireless to my wired connection?

    - by gatoatigrado
    I want to bridge the wireless connection with the wired connection. The wireless is the host and the wired is the client, so to speak. Internet sharing (inet <--> wifi <--> ethernet) I tried to bridge my ethernet connection by going to network manager edit connections wired edit IPv4 settings shared to other computers Screenshots However, it seems to automatically disconnect half a second after it says "connection established"! edit 2 got the network manager logs, it seems the address is in use. See http://pastebin.com/DjqRshxW , line 45. nm-tool output is here: http://pastebin.com/x5Aci5V1 . I tried firestarter, as mentioned in another thread, and no luck. I don't have time to bother with a dozen command line tricks, unless is copy & pasting a shell script... so please suggest ways that use GUIs and/or won't leave my computer in a confused state (e.g. disabling network manager, manually connecting to a WPA network, installing brutils, etc.). edit: one idea that would work, if it's possible -- is there a way to share connections via SSH and SOCKS5? I'd need to do this at a system-wide level though; I only know how to do it through the browser now. Then, I could run ifconfig eth0 192.168.4.1 on the computer sharing the inet, and ifconfig eth0 192.168.4.2 on the computer I'm trying to share with; I know this does work for host-to-host transfers. edit 3 If I run sudo killall dnsmasq, then nothing is using the 10.42.43.1 address the network manager sharing wants to use. But now it just takes longer to die, with error "NetworkManager[5935]: dnsmasq died with signal 9" [ http://pastebin.com/4FNtpugi ]. Looking at just the commands [ http://pastebin.com/1vrtQeWk ], maybe it's trying to route eth0 to itself? I'm not that familiar with networking things though.

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  • Regulating outgoing traffic on ubuntu VM

    - by DazSlayer
    I am making a virtual network setup for my high school cybersecurity team to practice. I am connecting all the VMs together through a VPN and then people who are practicing will VPN in and ssh/remote desktop into the different VMs. The problem is that for practicing, they will need root access into the VMs and because the VMs are connecting to my personal network, the VMs pose a security risk to my personal network. Is there any way in either VMWare or VirtualBox or even making an unchangeable iptable (I can make all the windows VMs go thru a linux VM) to prevent people from connecting to my local network via the VM?

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  • Upgrade from 11.04 to 11.10, getting "W:Failed to fetch gzip..."

    - by Michael Durrant
    Error during update A problem occurred during the update. This is usually some sort of network problem, please check your network connection and retry. W:Failed to fetch gzip:/var/lib/apt/lists/partial/us.archive.ubuntu.com_ubuntu_dists_oneiric_universe_i18n_Translation-en Encountered a section with no Package: header , E:Some index files failed to download. They have been ignored, or old ones used instead. I can browse web sites normally during this time though (my network is ok).

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  • Lenovo v570 ubuntu 12.04 wireless hard blocked even when ext. switch is on

    - by user100987
    When I run iwconfig it say's lo and eth0 have no wireless extensions, but wlan0 it says IEEE 802.11bgn ESSID:off/any Mode:Managed Access Point: Not-Associated Tx-Power=off Retry long limit:7 RTS the:off Fragment the:off Power Management:off and I believe that's my problem, I just don't know how to turn it back on Any help? When I ran lspci | grep Network it gave me this 02:00.0 Network controller: Intell Corporation Centrino Wireless -N + WiMAX 6150 (rev 67) How I know that my wireless is hard blocked because when I run sudo rfkill list all I get 0: Ideapad_wlan: Wireless LAN Soft blocked: no Hard blocked: no 1: phy0: Wireless LAN Soft blocked: no Hard blocked: yes when I run lshw -c network I get. *-network DISABLED description: Wireless interface product: Centrino Wireless-N + WiMAX 6150 vendor: Intel Corporation physical id: 0 bus info: pci@0000:02:00.0 logical name: mon1 version: 67 serial: 40:25:c2:d2:96:2c width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list logical wireless ethernet physical configuration: broadcast=yes driver=iwlwifi driverversion=3.2.0-32-generic-pae firmware=41.28.5.1 build 33926 latency=0 link=no multicast=yes wireless=IEEE 802.11bgn resources: irq:43 memory:d0500000-d0501fff *-network description: Ethernet interface product: RTL8111/8168B PCI Express Gigabit Ethernet controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:03:00.0 logical name: eth0 version: 06 serial: f0:de:f1:d7:a0:4d size: 100Mbit/s capacity: 1Gbit/s width: 64 bits clock: 33MHz capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl_nic/rtl8168e-2.fw ip=192.168.0.65 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s resources: irq:41 ioport:2000(size=256) memory:d0404000-d0404fff memory:d0400000-d0403fff

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  • Add a server between router and switch (production)

    - by Kossel
    I have a small office network basically like below, there are more router/pc connected in S1. As you can see, the router is doing job of DHCP, DNS. but now I wish to add a Linux server between R1 and S1, So I can monitor the network traffic and do other more advance server admin stuff. the whole office network is 192.168.1.x and people are using their computer everyday. What network configuration should the new Linux server have (both interfaces) in order to minimize the changes need in the network? tried to change R1 ip to 192.168.100.1 them add the server with FE0/0 192.168.100.1 and FE0/1 192.168.1.1 but looks cannot ping the original Router..

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  • Changing Vim Home Directory

    - by mcaaltuntas
    Previously I've been using vim without any problems. However a few months ago our company made some network and security updates. After that whenever I plug a network cable into my laptop, it creates a network shared drive "H" with my company name and when I try to open vim it doesn't load plugins and other things that are in my vim home directory. I have found the reason but I don't know how to solve it. The problem is that these network updates changed our HOME directory. When I write: echo $HOME It prints H. Before plugging in a network cable my home was C:\Users\blabla. How can I change my HOME variable? When I run set it prints: C:\Windows\System32>set | findstr /R "^HOME" HOMEDRIVE=H: HOMEPATH=\ HOMESHARE=\\companyname\blabla\username$

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  • Windows Not Sleeping All Night

    - by John Paul Cook
    Having a computer wake up when you don’t want it to wastes electricity and drains the battery on mobile devices. My desktop had been waking up at night, so I assumed it was some network traffic on my home network. I unchecked Allow this device to wake the computer on my network adapters . Figure 1. Network adapter Power Management tab. That didn’t solve the problem. I included the screen capture in Figure 1 because it could be part of the solution for someone else. To identify the root cause instead...(read more)

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  • How to Install Broadcom Wireless Drivers (BCM43xx)

    - by Fer1805
    I'm having serious problems installing the Broadcom drivers for Ubuntu. It worked perfectly on my previous version, but now, it is impossible. I'm a user with no advance knowledge in Linux, so I would need clear explanations on make, compile, etc. Edit: For the command: "lspci | grep Network", I get the following message: 06:00.0 Network controller: Broadcom Corporation BCM4311 802.11b/g WLAN (rev 01) For the command: iwconfig, i get the following: lo no wireless extensions. eth0 no wireless extensions. When i follow the following steps (from the above link), there are a NO error message at all: open the 'Synaptic Package Manager' and search for bcm uninstall the bcm-kernel-source package make sure that the firmware-b43-installer and the b43-fwcutter packages are installed type into terminal: cat /etc/modprobe.d/* | egrep '8180|acx|at76|ath|b43|bcm|CX|eth|ipw|irmware|isl|lbtf|orinoco|ndiswrapper|NPE|p54|prism|rtl|rt2|rt3|rt6|rt7|witch|wl' (you may want to copy this) and see if the term blacklist bcm43xx is there if it is, type cd /etc/modprobe.d/ and then sudo gedit blacklist.conf put a # in front of the line: blacklist bcm43xx then save the file (I was getting error messages in the terminal about not being able to save, but it actually did save properly). reboot 'End of procedure' Before (not ubuntu 11.04), if i wanted to connect wireles, i just went to the icon at the upper side of the screen, click, showed ALL the wireless network available, and done. Now, the only options i see are: Wired Network Auto Eth0 Disconnect VPN Enable networking Connection information Edit connection. lspci -vnn | grep Network showed: Broadcom Corporation BCM4322 802.11a/b/g/n Wireless LAN Controller [14e4:432b] hope above info is enough for your help.

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  • No Internet Connection - ubuntu 11.10

    - by emersonhsieh
    I installed Ubuntu 11.10 recently. After the first bootup the computer freezes so I have to force-quit my computer. Then I turned on my computer after that. I tried connecting to the internet. My (and my neighbor's) wireless networks shown up, but no matter how many times I tried, I can't connect to my home network. I checked the password and the other laptop's internet works (a MacBookPro). It was a wireless network. What's weird is that the Wireless network worked when I was installing ubuntu How can I connect to the internet now? I don't have a wired network. Please Help! Any help will be appreciated Specs: ASUS F81Se, Windows 7 Dual-boot, I remember the wireless card was made by Atheros, 4GB RAM

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  • Setting Default Ubuntu eth port

    - by No1_Melman
    Background: I have a desktop computer running Ubuntu 12.04. I have installed DRBL to handle DHCP server and Clonezilla Server. I have a network card in my desktop with 2 ports in it. These 2 ports are bonded together and are used by DRBL. There is a 3rd port integrated in the motherboard. I want to use this 3rd port for internet. DRBL knows that this is set for internet. Ubuntu Network-Manager has stopped recognising the connections (device not managed). It use to say that eth1 was default (first port in the network card) I want eth0 to be default as that is the Internet port. Question: How do I make network-manager see eth0 as the defualt port?

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  • Bonding and default gateway problem (CentOS)

    - by lg
    I configured network bonding on two machine with centos 5.5. Bonding works well, but the problem is default gateway: it is not configured! I follow this tutorial. I added GATEWAY in both (and either) /etc/sysconfig/network and /etc/sysconfig/network-scripts/ifcfg-bond0. But, when I restart network (or server) there is no default gateway (route command). This is ip route ls output after network restart: 10.0.0.0/16 dev bond0 proto kernel scope link src 10.0.0.88 Where is my mistake?

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  • Wireless does not work 12.10

    - by superkoop
    My primary issue is that my wireless does not work after I installed 12.10. The output to rfkill list all: 5: hci0: Bluetooth Soft blocked: no Hard blocked: no The output to lshw -class network is: *-network description: Ethernet interface product: 88E8040 PCI-E Fast Ethernet Controller vendor: Marvell Technology Group Ltd. physical id: 0 bus info: pci@0000:09:00.0 logical name: eth0 version: 12 serial: 00:21:9b:d6:46:51 size: 100Mbit/s capacity: 100Mbit/s width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=sky2 driverversion=1.30 duplex=full ip=192.168.1.102 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s resources: irq:44 memory:fe8fc000-fe8fffff ioport:de00(size=256) *-network description: Network controller product: BCM4312 802.11b/g LP-PHY vendor: Broadcom Corporation physical id: 0 bus info: pci@0000:0b:00.0 version: 01 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list configuration: driver=b43-pci-bridge latency=0 resources: irq:17 memory:fe7fc000-fe7fffff The output to lspci -nn for the pertinent information is: 0b:00.0 Network controller [0280]: Broadcom Corporation BCM4312 802.11b/g LP-PHY [14e4:4315] (rev 01) Thus, it seems the solution would be to run: sudo apt-get install linux-headers-generic sudo apt-get install --reinstall bcmwl-kernel-source sudo modprobe wl However, I do not currently have access to an ethernet connection, as I am currently only able to use verizon wireless 3g internet. Thus, is there a way to set up ICS with a Vista machine so that I can access the internet by using the Vista machine as the host? Or, is it possible to fix this by downloading the important packages in vista and moving them to ubuntu via USB drive?

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  • After upgrade to 12.04 wireless keeps dropping on BCM4312

    - by Sheket
    I know there are plenty of questions very similar to these, but I've tried practically everything and it still isn't working. Some solutions get the wireless connection working, but it goes very slow and drops after a few minutes. Then it won't reconnect and keeps asking for password. Hope you can help me. Thanks in advance. This is the output for sudo lshw -C network *-network description: Network controller product: BCM4312 802.11b/g LP-PHY vendor: Broadcom Corporation physical id: 0 bus info: pci@0000:02:00.0 version: 01 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list configuration: driver=b43-pci-bridge latency=0 resources: irq:18 memory:f0300000-f0303fff *-network description: Ethernet interface product: AR8132 Fast Ethernet vendor: Atheros Communications Inc. physical id: 0 bus info: pci@0000:05:00.0 logical name: eth1 version: c0 serial: 00:23:5a:9b:6e:b1 size: 100Mbit/s capacity: 100Mbit/s width: 64 bits clock: 33MHz capabilities: pm msi pciexpress vpd bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=atl1c driverversion=1.0.1.0-NAPI duplex=full firmware=N/A ip=192.168.0.106 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s resources: irq:42 memory:f0200000-f023ffff ioport:a000(size=128) *-network description: Wireless interface physical id: 1 logical name: wlan0 serial: 00:24:2c:83:f0:81 capabilities: ethernet physical wireless configuration: broadcast=yes driver=b43 driverversion=3.2.0-30-generic firmware=478.104 link=no multicast=yes wireless=IEEE 802.11bg And for lsmod | grep b43 b43 342643 0 mac80211 436455 1 b43 cfg80211 178679 2 b43,mac80211 bcma 25651 1 b43 ssb 50691 1 b43 And for rfkill list 5: phy0: Wireless LAN Soft blocked: no Hard blocked: no

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  • No WIFI on Ubuntu 12.04 LTS after today software update

    - by Adchara
    I just got new dell inspiron3537 with Ubuntu 12.04 LTS (no windows O/S). It got some wireless (hard block) yesterday. So, this morning, I ran the software update all the security update. After that I can't see "Wireless" in system setting. So, I updated all the software update and looked thru several web site and found "sudo lshw -c network" command. I tried and found the result below. *-network description: Ethernet interface product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:01:00.0 logical name: eth0 version: 07 serial: 74:86:7a:40:5d:48 size: 100Mbit/s capacity: 100Mbit/s width: 64 bits clock: 33MHz capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full ip=192.168.1.10 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s resources: irq:60 ioport:4000(size=256) memory:c0700000-c0700fff memory:c0400000-c0403fff *-network UNCLAIMED description: Network controller product: QCA9565 / AR9565 Wireless Network Adapter vendor: Qualcomm Atheros physical id: 0 bus info: pci@0000:02:00.0 version: 01 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list configuration: latency=0 resources: memory:c0600000-c067ffff memory:9fb00000-9fb0ffff Please suggest what I should do to fix it. Thx in advance

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  • How to make a backup VPN server?

    - by akalenuk
    I have a small VPN network with a bunch of clients working mostly with each other and a VPN server. Everything works fine, except, obviously I can't shut VPN server down without breaking the network. I have a spare machine, which worked as an VPN server for the same network before so it is signed with the same SA as the first one and basically configured just the same as the first one. Technically I can make my clients work with it with little adjustment (by setting remote in etc/openpvn/clientx.conf), but it would be great make this switch automated. So basically I want two VPN servers running in the same network to work completely interchangeable without clients even knowing this. Can I do this with VPN or should I dig deeper into physical network layer?

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  • Howto use Windows Authentication with SQL Server 2008 Express on a workgroup network?

    - by mbadawi23
    I have two computers running SQL Server 2008 Express: c01 and c02, I setup both for remote connection using windows authentication. Worked fine for c02 but not for c01. This is the error message I'm getting: TITLE: Connect to Server Cannot connect to ACAMP001\SQLEXPRESS. ADDITIONAL INFORMATION: Login failed. The login is from an untrusted domain and cannot be used with Windows authentication. (Microsoft SQL Server, Error: 18452) For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=18452&LinkId=20476 BUTTONS: OK I don't know if I'm missing something, here is what I did: Enabled TCP/IP protocol for client from Sql Server Configuration Manager. Modified Windows firewall exceptions for respective ports. Started the Sql Browser service as a local service Added Windows user to this group: "SQLServerMSSQLUser$c01$SQLEXPRESS" From Management Studio, I added "SQLServerMSSQLUser$c01$SQLEXPRESS" to SQLEXPRESS instance's logins under security folder, and I granted sysadmin permissions to it. Restarted c01\SQLEXPRESS Restarted Sql Browser service. There is no domain here. It's only a workgroup. Please any help is appreciated, Thank you.

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  • Applying Domain Model on top of Linq2Sql entities

    - by Thomas
    I am trying to practice the model first approach and I am putting together a domain model. My requirement is pretty simple: UserSession can have multiple ShoppingCartItems. I should start off by saying that I am going to apply the domain model interfaces to Linq2Sql generated entities (using partial classes). My requirement translates into three database tables (UserSession, Product, ShoppingCartItem where ProductId and UserSessionId are foreign keys in the ShoppingCartItem table). Linq2Sql generates these entities for me. I know I shouldn't even be dealing with the database at this point but I think it is important to mention. The aggregate root is UserSession as a ShoppingCartItem can not exist without a UserSession but I am unclear on the rest. What about Product? It is defiently an entity but should it be associated to ShoppingCartItem? Here are a few suggestion (they might all be incorrect implementations): public interface IUserSession { public Guid Id { get; set; } public IList<IShoppingCartItem> ShoppingCartItems{ get; set; } } public interface IShoppingCartItem { public Guid UserSessionId { get; set; } public int ProductId { get; set; } } Another one would be: public interface IUserSession { public Guid Id { get; set; } public IList<IShoppingCartItem> ShoppingCartItems{ get; set; } } public interface IShoppingCartItem { public Guid UserSessionId { get; set; } public IProduct Product { get; set; } } A third one is: public interface IUserSession { public Guid Id { get; set; } public IList<IShoppingCartItemColletion> ShoppingCartItems{ get; set; } } public interface IShoppingCartItemColletion { public IUserSession UserSession { get; set; } public IProduct Product { get; set; } } public interface IProduct { public int ProductId { get; set; } } I have a feeling my mind is too tightly coupled with database models and tables which is making this hard to grasp. Anyone care to decouple?

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  • At what level should security be implemented in a social network web application ?

    - by Rajkumar Gupta
    I am developing a social web application in php/mysql, I would like to hear your advice about what would be a better way to implement security. I am planning something like this:- At the presentation level, I restricting the user to see only those items/content he is eligible to see with the rights he is eligible & at the database level, whenever my data is read/ written or updated I verify that the person has rights to such interactions with that part of data. So for each action there is 2 layers of security one at the view level & another at the database level. Would double checking be much overhead ? ofcourse this handles only with the internal security issues ..

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  • Qt cross thread call

    - by QLatvia
    I have a Qt/C++ application, with the usual GUI thread, and a network thread. The network thread is using an external library, which has its own select() based event loop... so the network thread isn't using Qt's event system. At the moment, the network thread just emit()s signals when various events occur, such as a successful connection. I think this works okay, as the signals/slots mechanism posts the signals correctly for the GUI thread. Now, I need for the network thread to be able to call the GUI thread to ask questions. For example, the network thread may require the GUI thread to request put up a dialog, to request a password. Does anyone know a suitable mechanism for doing this? My current best idea is to have the network thread wait using a QWaitCondition, after emitting an object (emit passwordRequestedEvent(passwordRequest);. The passwordRequest object would have a handle on the particular QWaitCondition, and so can signal it when a decision has been made.. Is this sort of thing sensible? or is there another option?

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