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• USB Wireless adapter that works with Windows 7 (32 and 64bit)

  - by Kjensen

  Can anybody recommend a USB wireless network adapter, that has Windows 7 drivers for both 32 and 64 bit? It also needs to reconnect to the network when the computer is brought out of sleep. I have three of these from earlier (from Allnet, trendnet and linksys), and just one of them has working drivers for Win7 64bit - but fail to return from sleep in a working state.

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• How to set local alias for a machine?

  - by Alex G.

  I would like to set an alias on my local PC for a network machine. I know that it can be done by adding an entry in the hosts file as long as the IP address of the machine is also specified. However, the problem is that IPs are dynamically assigned by a DHCP server so I don't know for sure the IP address. Is there a way to define just an alias based on the machine's network name? P.S.: I'm running Windows Server 2008 R2.

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• Virtual box host-only adapter configuration

  - by Xoundboy

  I have VirtualBox 4 running on Win 7 with a Centos 6 guest VM set up for hosting my dev server. When I'm connected to my home network the guest can be accessed via a static IP address that I configured (192.168.56.2), but not when I'm in the office. I'm guessing that the DHCP server in the office doesn't have a gateway configured for the 192.168.56.x IP range. I read something about the VB host-only adapter that should allow me to set this guest VM up in such a way that I don't need to be on any network to be able to access the guest from the host using a static IP. I've not been able to find out exactly how to configure this though. Can anyone give me an example configuration, thanks. UPDATE: Thanks for your responses. I've now set up a single virtual network adapter in VirtualBox and set it to host-only: C:\Users\Ben>vboxmanage list hostonlyifs Name: VirtualBox Host-Only Ethernet Adapter GUID: d419ef62-3c46-4525-ad2d-be506c90459a Dhcp: Disabled IPAddress: 192.168.56.2 NetworkMask: 255.255.255.0 IPV6Address: fe80:0000:0000:0000:78e3:b200:5af3:2a57 IPV6NetworkMaskPrefixLength: 64 HardwareAddress: 08:00:27:00:94:e8 MediumType: Ethernet Status: Up VBoxNetworkName: HostInterfaceNetworking-VirtualBox Host-Only Ethernet Adapter On the guest I've set up eth0 to use the same IP address as the host-only adapter (192.168.56.2) but when I try to log in using Putty I still get "Network Error : connection refused". VirtualBox DHCP servier is enabled but I can't ping the gateway (192.168.56.1) from either host nor guest. There's no firewall running on either OS. What next?

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• Remove Windows 7's limitation on number of concurrent tcp connections (http web requests)

  - by Ghita

  I have an application that tries to open as many http requests as possible (in order to stress test a proxy implementation) It seems to me that Win7 (SP1) may have a limitation on number of concurrent opened connection (it may be the so called half-open state if I'm not wrong). Is there something I can do for client ? and also I test using a vista PC that acts as a proxy server. It would be great if I could configure it to sustain at least 50 new connections initiated / second on client side and many more on server. I made the modification according to this technet article by setting TcpNumConnections = 150 but it doesn't make a difference. I still only see about 20 tcp sockets associated with my http client by using tcpview.

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• good PCI-e Wireless card for Windows7?

  - by benwebdev

  Hi I've just build a 64bit Windows 7 PC but am unhappy with the piddly performance of the linksys USB wireless dingle I've used. Can anyone suggest a good PCIe alternative that will be stronger for connection and maybe faster. I dont see why my desktop should show a weaker performance on wireless than my laptop when its sat next to it or even my Palm Pre for that matter. any thoughts? UK based max around £60ish. thanks, Ben

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• WDS (Wireless Distribution System) not work

  - by xdevel2000

  I've a dlink di-524 as main router (192.168.0.1) connected to Internet and a second router (192.168.0.2), a tplink wr841n, with WDS enabled and correctly configured to "join" with dlink. After I connect via wireless a laptop (192.168.0.100) to tplink and both work good but with the laptop I can't go to Internet. It seems as WDS not work. With the laptop I can only ping the tplink but other ping (the dlink or other LAN computer not responding). What's the problem? Perhaps also the dlink must have the WDS option? Thanks.

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• How to write rules for persistent net names?

  - by ndemou

  I know that a process generates persistent network card names based on rules found in /lib/udev/rules.d/75-persistent-net-generator.rules. I also know how to completely disable this process with a simple echo '#' > /etc/udev/rules.d/75-persistent-net-generator.rules but I've read that I "could also write my own rules file to give the interface a name — the persistent rules generator ignores the interface if a name has already been set" (/etc/udev/rules.d/README confirms that this is possible). Do you have any pointers to documentation about how to write such rules? (I mostly care about Debian/Ubuntu and a bit less for CentOS) As a specific example of why I want to write custom rules: I have two identical servers with one onboard LAN and one PCI LAN. In case of HW failure I want to be able to move disks from HW#1 to HW#2 and it's important for eth0 to continue pointing to the onboard card and eth1 to the PCI card (no one wants to mess with cabling in the middle of a HW failure panic). My current workaround works but is a lot of work[1] so I wonder if writing custom rules would allow me to express something simple like this: cards with MAC A or B should be named eth0 cards with MAC C or D should be named eth1 follow default naming scheme for anything else [1] install the OS in HW#1 and keep a copy of /etc/udev/rules.d/70-persistent-net.rules. Move the disks to HW#2 and keep a second copy of the same file. Concatenate the two copies and manually edit the NAME="ethX" part. Replace /etc/udev/rules.d/70-persistent-net.rules with my version. Finally disable auto-creation of a new 70-persistent-net.rules using echo '#' > /etc/udev/rules.d/75-persistent-net-generator.rules

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• Connect Ralink RT2571 to new PC

  - by tuelsch

  I bought a new PC with the AsRock Z77 Extreme 4m motherboard, since this has no WLAN, I extracted the WLAN card from my old PC, a Ralink RT 2571 WF, an connected it to the new board. I downloaded the driver from http://www.ralinktech.com/en/04_support/support.php?sn=500 (the RT257x USB one) and installed it. In the device manager, an unknown device shows up, but if I tell it to search its driver, it does not find it (searching in the whole C partition). The Ralink Diagnostic Test says that the WLAN Card is disabled. I'm using Windows 7 64bit professional. Can anyone suggest me a solution to get my WLAN running?

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• Accessing VMware Player across the network

  - by Tiffany Walker

  My network: 192.168.2.2 (computer) 255.255.255.0 (mask) 192.168.2.254 (gateway) The VMplayer is: 192.168.233.129 (ip) 255.255.255.0 (mask) 192.168.233.255(bcast) It's obvious the player can't be access from other systems because of the wrong network settings. However, I am not sure as to how to change that. Obviously I have to edit the ifcg-eth0 but I know I also need to edit it on the host system to make it accessably. Is this done from inside VMware Player? Or do I need to edit the network devices? The host box is Windows. Inside VMware is Linux.

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• Is it possible to kill a RAS connection which won't disconnect.

  - by sgmoore

  I have a Windows 2003 Server which has a number or RAS Connections to some of our customers. Occasionally the connections go into a mode where there are connected, but not working. Disconnecting and reconnecting solves the problem. However sometimes you can not disconnect as I get the following error message It is not possible to disconnect at this time. The connection is currently busy with a connect or disconnect operation. There are no visible connection dialog boxes when this message occurs and I usually end up having to restart the server which obviously affects all the other users. I know that if you have a service that is stuck 'stopping' you can just kill it. Is there anything similar that you can do to reset a ras connection?

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• Internet wireless connected with limited access, windows vista

  - by Wawa wiya

  Hello I had some malware in my computer so I did a bit of manual work to remove it including resetting TCP/IP. Now the malware is gone. I can see my home wireless network and I can get connected to it but when connected I get the Internet wireless connected with limited access message. When I go to the IE I cannot browse. When I tried to ping 192.168.1.1 I got an Error Code 1231 Unconnected Network Problem. I have deactivated my Windows firewall as I thought it could be hyperactive security. Still no luck. I have Norton but it is not active, I have also Avast and AVG installed but they are not active. Any ideas?

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• Establish connection with an IP camera behind a modem-router assigned with a private IP by Internet Service Provider?

  - by silvernightstar

  Most solutions out there require the modem-router to have been assigned a public IP by the ISP. After which, one can access the IP camera via a portforward setting on the router. However, my ISP only provides private IPs internal to their system (they probably have a limited pool of public IPs). So I am unable to view my IP cameras in the way described. I'm wondering if there's a way to work around this problem without having to need a public IP. Since, after all, two users on Yahoo Messenger or Facebook Chat are able to find one another and exchange data despite both sides being within the internal networks of their respective ISPs. Given that I only plan to view my IP cameras via iOS or Android running on a smartphone or tablet, any ready-to-use solutions out there?

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• Redirect traffic to local address so iOS speedtest app measures LAN speed

  - by ivan_sig

  I have mounted a Speedtest Mini server on a local LAMP, so I can test my LAN speeds effortlessly just by opening the URL with a Flash enabled web browser, the thing is, I want my iOS and Android devices to test with the LAN server too, not with the WAN, as I'm trying to measure LAN-Only performance. Is there a way so I can redirect the traffic intended to an specific external IP (The one of the real server) to my local server?. I know the servers IP as a short Wireshark analysis gave me the data, but still searching for a way to make that redirect. I have Jailbreak and root on my devices, so playing with system files is not a problem. I've tried mounting a proxy and making redirects by the hosts file and domain names, but it looks like Ookla's app relies on IP address only.

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• How do I change the Admin password on a Ubee DVW3201B?

  - by Iszi

  I must admit that I feel rather foolish having to ask this. I recently switched ISPs, and the new one gave us a Ubee DVW3201B as our home gateway. I want to change the Administrator username/password from the defaults, but I've been having some difficulty. Every time, after I save the new username and password, I'm prompted to re-authenticate to the administration interface. It fails no matter what I try. I've tried using: New username / New password Default username / New password Default username / Default password None of the above works. This has happened twice now, with my only recourse after failure being to do a reset to factory defaults (press and hold the hard reset button for 10 seconds). Is there something I'm missing?

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• How do I connect a laptop running Windows 7 to an Android phone using WiFi Direct?

  - by user130768

  From where I am sitting, Windows 7 does not appear to support WiFi Direct connections to Android mobile devices. Specifically, turning on WiFi Direct on my Samsung Galaxy S II does not make the device visible as a potential WiFi network connection. Windows 8 is said to support WiFi Direct, but I have no desire to upgrade at this time. I have successfully set up ad hoc WiFi connections between the S II and my laptop before, but as you may be aware, these are not the same as WiFi Direct. Before posting this question, I searched [ "Windows 7" "WiFi Direct" ] and variations thereof, and dutifully slogged through dozens of lame or irrelevant responses on various forums, badly made YouTube videos, and probable Trojan horse distribution sites. If someone out there knows how to do this, it's buried in the noise.

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• NAT via iptables and virtual interface

  - by Alex

  I'm trying to implement the following scenario: One VM-host, multiple guest VMs, each one gets its own IP-address (and domain). Our server has only one physical interface, so the intended use is to add virtual interfaces on eth0. To complicate our situation the provider uses port-security on their switches, so I can't run the guest interfaces in bridged mode, because then the switch detects a "spoofed" MAC-address and kills the interface (permanently, forcing me to call the support, which I'm sure will get them a little bit angry the third time ;) ). My first guess was to use iptables and NAT to forward all packages from one virtual interface to another one, but iptables doesn't seem to like virtual interfaces (at least I can't get it to work properly). So my second guess is to use the source IP of the packages to the public interface. Let's assume libvirt creates a virbr0-network with 192.168.100.0/24 and the guest uses 192.168.100.2 as IP-address. This is what I tried to use: iptables -t nat -I PREROUTING --src public_ip_on_eth0:0 -p tcp --dport 80 -j DNAT --to-destination 192.168.100.2:80 That doesn't give me the intended results either (accessing the server times out). Is there a way to do what I'm trying to do, or even to route all traffic to a certain IP on a virtual interface to the VM's device?

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• Establish direct cable connection between Windows 8 PCs in home network

  - by Marie. P.

  I'm running two PCs, a desktop and a laptop with Windows 8 Release Preview ("Build 8400"). They are connected to the same router in infrastructure mode, thereby having wireless internet. Due to often file synchronization between the machines I want to establish a cable connection that allows direct file transfer, without needing to use the wireless. When I plug in the cable (normal, not cross-over), I see in "Control Panel\Network and Internet\Network Connections": "Ethernet - unidentified Network" on both PCs. Transferring a file between both still only uses the WiFi via the Router. I noticed that when turning off the wifi on one PC, I can set up a shared internet connection that will work via Ethernet-cable, but since sometimes only one PC runs, sometimes the other one, I do not want to have the internet of one machine to be dependent on the other one being switched on. I do not have a crossover-cable, but since I did connect the PCs already successfully (just without both being on the internet), I'm sure that this should also work with a normal ethernet cable.

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• Share PC over network

  - by Sachin Verma

  I have a server installed on one local Win7 machine (say as 192.168.2.14:8080/myAPP) and I want to access that server from different computer (say ip as 192.168.2.16). Even they are connected to same network I can't access server from other computer. I guess the problem is in firewall. This is working when I disable firewall and not working when I allow certain ports in windows firewall but keeping firewall on (As a rule to allow incoming connections).

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• Is there a good tool for monitoring network activity on OS X?

  - by xentek

  Is there a good bit of software on OSX that I can use to monitor incoming and outgoing network activity? Nothing too geeky, just want something simple to use. I'm on snow leopard if that helps.

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• Diagnosing Random Network Lag

  - by uesp

  I'm having trouble diagnosing some random lag on a 6 server LAMP cluster serving a MediaWiki site. While we're serving some 100 pages/sec the servers themselves are running fine with less than 0.5 load, no locked processes, no paging, no errors being logged, etc.... Lag is present on all servers and is random: one minute its fine the next it's there. DNS lookups on the servers are randomly slow. For example time nslookup google.com varies randomly from a few milliseconds to several seconds and sometimes times out entirely. While we use IP addresses internally on the cluster this may be a symptom of the root issue. We are not running our own DNS server. The Apache server-status pages randomly lag or time out. Benchmarking using ab between servers shows a few loads sometimes take 3000 ms (almost exactly). Benchmarking server-status on the local server itself usually shows no issue (it showed a lag only once among a few hundred tests). The servers are sitting behind a switch and a firewall which I don't have any access to so I don't know their setup or status. While we are under heavier than normal load a 2 Mbps incoming and 20 Mbps outgoing traffic shouldn't be stressing the switch or firewall should it? My feeling is that it is the switch/firewall or something above them in the ISP like their DNS but can't confirm it. I need some other tests or methods of diagnosing this lag to try and narrow down the ultimate cause.

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• solving network connection problem on xp

  - by doug

  Hi there I feel so stupid, because I have to fix my dad computer(which was mine years ago). So it is an old computer on which I have installed windows xp and the drivers for main-board. The device manager says that I have no more problems with the hardware. That computer has to connect to a router from my room but it doesn't. On ping 192.168.2.1 I get "Request time out"., The other computers are connecting to that router. Only the old computer doesn't connect to the LAN and later to the internet. Also it doesn't get a good IP(from the same class). After running ipconfig command I know that i have an IP with 169.... What can I do? Do you have any tips for me?

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• OSD with ConfigMgr across subnets?

  - by MattUebel

  I am trying to deploy a system image from one subnet to another. Subnet A contains the SCCM server. Subnet B contains the workstation that I want to build. Subnet B contains a DHCP server with a scope configured to service the workstations. How would I configure the DHCP server so that it tells the workstations to look at the SCCM server on Subnet A as its bootserver?

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• Mirror your display to another computer on your network

  - by klikkamongo

  I have a computer I am using for showing media, running windows 7 (XBMC). It is hooked up with a projector. I want other computers on my network to have the opportunity to mirror their display to this computer.(without the media computer having to accept it, it should be all controlled by the sending computer.(like sending a movie with Apple's Airplay)) One scenario: I am finding a webpage with a great article (or a Word document) on my computer that i want to show to the other people in the room, i press a button, then my screen is mirrored to the media pc. I can still scroll, write etc. so everybody can see it. When i am done showing the article, I can exit the display mirroring, and the media computer display goes back to normal. This should mirror the whole screen, not only the browser like plugins can do in chrome, or sending Youtube movies like plugins for Opera. Update I found a video example of the solution I am looking for, unfortunately it looks like it will be hard making a Chromecast reciever for windows. Using the "Cast entire screen (experimentally)" button on the Chromecast plugin in Chrome is doing the exact thing I want to do, see this video.

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• Troubleshooting my internet connection

  - by Simon Verbeke

  While I was out of the house, my father rearranged the network cables a bit. I don't know what he has done exactly - He says nothing more then pulling and untangling. When I came back home, my internet connection changed its IP from 192.168.0.205 to 169.254.197.233. The speed changed from 1Gbps to 10Mbps. It has also been at 100Mbps for a while. My subnetmask changed from 255.255.255.0 to 255.255.0.0. The standard gateway changed from 192.168.0.1 to no standard gateway. My DNS servers remain the same. I have checked the lights of the UTP ports, and it looks like it's only sending a heartbeat every few seconds. A sketch of the (relevant part of) the network: My PC ----- extender ----- modem ^ ^ ^ Wired | Wired | This thing connects two cables to each other All the cabling is gigabit, my network card is a Realtek RTL8168C(P)/8111(P) Family PCI-E Gigabit Ethernet NIC (NDIS 6.20). THe modem is a CBN SVG6540E I have no idea what is going on here and I don't know how to find out either. Any help is welcome! If you need any more info, please ask.

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• Private VOIP network

  - by SuppositoryPlacebo

  I own a small private security services business. Some of my clients require 2-10 security officers per location. I'm trying to think outside the box in order to solve my communications problem. I'd rather not buy or lease hf radios or voip systems at the current rates. I'm wondering if there is an existing system, or if is at all possible, to setup a private communications network using only a server and bluetooth devices or a wifi/bluethooth combination. http://25.media.tumblr.com/tumblr_m44f0pn7BL1rwp6tgo1_1280.png I don't need "radio" per se. I just need a simple, private voip network. Is there an existing device that consists of nothing more than a wifi adapter to control a bluetooth device?

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