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  • Wireless Network Disappearing From Available Networks (Windows 7)

    - by PeteDaMeat
    I have been using Windows 7 with a BT Voyager wireless adapter to connect to my home wireless network for around the last 6 months or so and until recently have experienced no problems. However, over the last couple of days Windows has been unable to connect to the network and the network name is no longer visible in the list of available wireless networks. The only way I have got round the problem is to reboot the NetGear router and to change the SSID to a network name which has not already been used. I do not believe the problem is with the router as my mobile phone can connect to it without any problems. The BT Voyager wireless adapter detects all other available networks so I presume this is a Windows 7 issue as it seems to occur when the PC is rebooted. This problen has happened twice in the last 2 days and is becoming extremely annoying. Does anyone have any suggestions?

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  • Homegroup should be working, but doesn't

    - by Tim
    I have Win7 installed on both my PC and laptop. When I choose to make a homegroup I can go through the steps of creating, getting password, then joining it from the other computer and it says that it all connects properly. But when I go to the homegroup tab it always says no other computers connected. If I look in the settings it will say "connected to suchandsuch homegroup" but the comps won't show. Also, on my PC, when I tick the boxes in the homegroup settings on what libraries I want to share, then click on save settings, it shuts down the settings window and when I re-open it the library tick boxes are all unticked again. Yet, I have had no problems with the tick boxes stayin ticked on the laptop. I have tried cancelling and remaking the homegroup, have tried making it on both computers, and have tried disabling and re-enabling the network connectors but it still won't work. At my old house we had 3 PCs running win 7 and 2 of them could homegroup together fine but mine never could as it was getting the same problem I am getting now. I feel like I am the only one on the planet with this problem. Can anybody help?

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  • Damn Small Linux - Setting system-wide proxy

    - by ryanfernandes
    I've just installed DSL on virtualbox. The network works fine. However, to connect to the internet, I need to use a proxy with authentication. I can do this in the brower, but I need to allow other command line utilities to access the internet too. Is there a way that I can set a system-wide proxy with authentication information (username/password) on DSL?

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  • Ip doesn't change when switching networks, although automatic ip is set. Cause of the issue known

    - by Julio Acevedo
    I have two routers at my house. Both of them have DCHP server enabled. One of them is 192.168.1.1 and gives adresses from 192.168.1.2 to 192.168.1.32 The other one is 192.168.1.50 and gives adresses from 192.168.1.51 to 192.168.1.99 The problem is that I only have internet access in one because my ip is 192.168.1.7, and when I switch to the other one, the ip remains 192.168.1.7, even though I have automatically get a ip adress in Ipv4. When I manually change my ip to one in the range allowed by the router, I can browse the internet. Any ideas how to solve this? Thank you.

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  • Iptables Forwarding problem

    - by ankit
    Hi all, I had initally asked question about sertting up my linux box for natting for my home network and was given suggestions in the thread here. Did not want to clutter the old question so starting a new one here. based on the earlier suggestions, i have come up with the following rules ... :PREROUTING ACCEPT [1:48] :OUTPUT ACCEPT [12:860] :POSTROUTING ACCEPT [3:228] -A POSTROUTING -o eth0 -j MASQUERADE COMMIT *filter :INPUT DROP [3:228] :FORWARD DROP [0:0] :OUTPUT DROP [0:0] -A INPUT -i lo -j ACCEPT -A INPUT -i eth0 -p icmp -j ACCEPT -A INPUT -i eth0 -p tcp -m tcp --dport 80 -j ACCEPT -A INPUT -i eth0 -p tcp -m tcp --dport 443 -j ACCEPT -A INPUT -i eth0 -p tcp -m tcp --dport 22 -j ACCEPT -A FORWARD -i eth1 -p icmp -j ACCEPT -A FORWARD -i eth1 -p tcp -m tcp --dport 80 -j ACCEPT -A FORWARD -i eth1 -p tcp -m tcp --dport 443 -j ACCEPT -A OUTPUT -p icmp -j ACCEPT -A OUTPUT -j ACCEPT COMMIT If you notice, i do have the proper MASQURADING rule and the proper FORWARD filter rule as well. However i am facing 2 problems On the linux box itself DNS resolving is not working the lan clients connected to the linux box, are still not able to get to internet. when i ping something from them, i see the DROP count in iptables INPUT rule increasing. now my question is, when i am pinging something from the lan client, how come it is being matched by the input chain ?! should it be in the forward chain ? Chain INPUT (policy DROP 20 packets, 2314 bytes) pkts bytes target prot opt in out source destination 99 9891 ACCEPT all -- lo any anywhere anywhere 0 0 ACCEPT icmp -- eth0 any anywhere anywhere 0 0 ACCEPT tcp -- eth0 any anywhere anywhere tcp dpt:http 0 0 ACCEPT tcp -- eth0 any anywhere anywhere tcp dpt:https 122 9092 ACCEPT tcp -- eth0 any anywhere anywhere tcp dpt:ssh Thanks ankit

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  • Bradford Dissolvable Agent not completing scan, application unexpectedly stops without error or report

    - by MChandler
    I've been trying to connect to a network that uses the dissolvable agent to scan and OK your computer. The scan gets to around 70% ish, I think the last notification is that it's searching for AVG then closes, without report or notification. I've tried running it in compatibility modes, checking registry, running CCleaner, running as administrator, creating another user account and disconnecting all other HDD's appart from my system drive. I'm running Windows 7 64 bit, and before I joined the network bradford ran fine and gave me the all okay.

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  • Router recommendation to virtualize 800 IPs

    - by delerious010
    I've recently been looking at getting some new load balancers for our environment as we are expecting to double our client base in the next 12 months. Currently we have 400 public IPS serving 800 clusters ( 2 clusters / IP due to ports ) on Coyote Point Balancers, and distributing connections to 3 web servers serving about 6GBytes outgoing, 2Gbytes in per day. If we double, this would be about 800 IPs, possibly 1600 clusters, and about 6 servers per cluster ( for a total of 9600 so called "real servers" using Barracuda's lingo ). Due to the amount of clusters, most solutions I've looked at ( Coyote, Barracuda, Loadbalancer.org ) seem to be unsure whether they'll be able to handle our planned growth, mostly due to health checks performed on the servers ... which makes total sense when you think of it. So the fine folk at loadbalancer.org recommended that we may be better off offload the 400-800 public IPs, which we require for SSL eCommerce solutions, over to a forward facing router. From that point on, the router could do some mangling to route EXT_IP:443 to INT_IP:INT_PORT which would then allow us to reduce the Load Balancer configuration to 1 or 2 clusters, thus resolving the health check problem. Does this idea make sense to yall ? Or would you have other recommendations to make ? Secondly, what router would you recommend for such an undertaking ? I'd be looking at something that has some form of failover mechanism built in. On a totally unrelated note, I've got to admit that I'm extremely pleased with the responses I got from loadbalancer.org. Their responses to my inquiries were surprisingly helpful ( i.e. I didn't feel as if I was taking to a sales guy trying to push something ). ( No I don't work for them, and sadly nor are they sending me free gear ).

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  • What services does hosts.allow NOT affect?

    - by Jed Daniels
    I know that hosts.allow and host.deny only affect things that are tcpwrappered, but what does this mean in practice? It seems that most people use hosts.allow to handle ssh and nfs blocking, but what other services are typically handled there? And what services AREN'T typically handled there? Edit: ok, I realize I did a terrible job of explaining what I was after. No, I'm not interested in knowing if a particular service can be handled by hosts.allow, I want to know if a service will be handled. For example, if I do an lsof -i, I get a nice list of things that are listening for connections to my box. I want to know which ones will be affected if I go stick an entry into hosts.allow (well, I really want to know which ones won't be affected).

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  • Connect a Sitecom WL-174 to another wireless router

    - by Thijs Wouters
    I used to connect via a Sitecom WL-174 directly to ADSL internet. There were some pc's which connected wirelessly and some connected with a wire. Now we got another provider and we need to use the router which came with it. It is also a wireless router. It works perfectly. But I need to connect the other pc's which were connected with a wire previously. Is it possible to connect the Sitecom router wirelessly to the other router? If so, how? Thanks.

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  • Home-Router: Access internal server using external ip [migrated]

    - by user15863
    If I've got a typical home router -- say a Net Gear -- which has certain ports forwarded to a internal server, is there a way to tweak the router to let me access that internal server using the external IP address from within the same network? Is there a non-enterprise grade router that can handle this type of thing? In case that was strangely worded, let me re-phrase with an example. My external IP is 1.2.3.4. My internal server is 10.4.3.100 Port 1178 is being forwarded from the router to 10.4.3.100. I'd like to be able to be able to hit 10.4.3.100 from an internal ip of 10.4.3.10 by using the external ip of 1.2.3.4. Possible?

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  • Can't telnet to SQL Server

    - by Thiago
    Hi there, I have an SQL Server running on a computer, and I'm trying to access it from another computer in the same local network (potentially VPN, since it's located in a datacenter). The point is that I can't even telnet to the port in which SQL Server is listening. And yes, SQL Server is working, since I can telnet to it from my workstation. I think it's something in the host, since there's no hop between the two computers, but I don't know how to troubleshoot this. Basically I get a connection failed, when I try to telnet. What can cause such problem, since apparently there's no firewall and the server is accepting connections from other computers? Thanks in advance

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  • Is possible to boot on PXE over a WiFi device?

    - by Diogo Rocha
    As I know it is possible to boot up some bootable images (like Linux, Clonezilla, management applications and others) over a PXE (Preboot Execution Environment) server with an Ethernet device (802.3). Can the same thing be done with an Ethernet WiFi (802.11) device? I tested with my notebook but my BIOS appears to not enable booting from WiFi devices. Is it possible with some specific WiFi cards and/or a specific BIOS?

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  • How to access web server of any machine of my network from the outside

    - by Luc
    Hello, I have an ip like username.dyndns.org, this is the external IP of my router. On my lan, I have several machine (m1, m2, ...) , each running a dedicated web server. Is it possible to reach each machine from the outside with something like: http://m1.username.dyndns.org http://m2.username.dyndns.org ? Do you know what needs to be configured in my router for NAT ? Also, is there a special directive in Apache to do so ? Thanks a lot, Regards, Luc

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  • Why do I often have to refresh pages I navigate to once for them (or content in them) to load?

    - by GetOutOfBox
    I have noticed a bizarre pattern when using my PC, that when I open a link to a website, it often will often take a very long time to load, or time out. Sometimes content on the website will be drawn, but again, it seems to get "stuck" for an unusual amount of time before finishing. Most affected is Youtube; almost every time I navigate to a youtube video from another website such as Google, the video will not begin playing, but will instead just display the player controls with a black screen where the video should be and the buffering symbol, usually before displaying an error such as "The video failed to load". The unusual part of this problem is that whenever this happens, refreshing the page always causes it to load almost immediately the second time around, without any problems. Note that I'm not talking about how some browsers will dump whatever has been cached to the "pallet" briefly when the page is refreshed or loading stopped; but that the second time loading the website being faster. I have done my best to rule out some of the obvious causes: My Windows 7 desktop computer is the only device that seems to be affected. I use Firefox on it (latest version, flash updated, etc). My connection has more than enough bandwidth (30 megabits down, 4 up), and I've even tried QoSing all other devices to make sure this isn't happening due to usage spikes. Wireshark is not showing any clearly unusual network activity (i.e frequently dropped packets).

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  • Shared firewall or multiple client specific firewalls?

    - by Tauren
    I'm trying to determine if I can use a single firewall for my entire network, including customer servers, or if each customer should have their own firewall. I've found that many hosting companies require each client with a cluster of servers to have their own firewall. If you need a web node and a database node, you also have to get a firewall, and pay another monthly fee for it. I have colo space with several KVM virtualization servers hosting VPS services to many different customers. Each KVM host is running a software iptables firewall that only allows specific ports to be accessed on each VPS. I can control which ports any given VPS has open, allowing a web VPS to be accessed from anywhere on ports 80 and 443, but blocking a database VPS completely to the outside and only allowing a certain other VPS to access it. The configuration works well for my current needs. Note that there is not a hardware firewall protecting the virtualization hosts in place at this time. However, the KVM hosts only have port 22 open, are running nothing except KVM and SSH, and even port 22 cannot be accessed except for inside the netblock. I'm looking at possibly rethinking my network now that I have a client who needs to transition from a single VPS onto two dedicated servers (one web and one DB). A different customer already has a single dedicated server that is not behind any firewall except iptables running on the system. Should I require that each dedicated server customer have their own dedicated firewall? Or can I utilize a single network-wide firewall for multiple customer clusters? I'm familiar with iptables, and am currently thinking I'll use it for any firewalls/routers that I need. But I don't necessarily want to use up 1U of space in my rack for each firewall, nor the power consumption each firewall server will take. So I'm considering a hardware firewall. Any suggestions on what is a good approach?

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  • Automounting Active Directory home drives on a Linux server on login

    - by Ethan
    I've got a Centos 5.7 box authenticating against Active Directory through PBIS Open (the new LikeWise Open), which works well. Now, I'm trying to get the server to automount the user's AD home directory, located at //ad.server.dom/shares/home directories (Yeah, it's a space in the path. I didn't set this up). Each user has a directory in there with the same name as the user. I've tried to get pam_mount working, but it has a series of issues on RedHat and friends, and I can't seem to get that working. The directory does need to be automounted for the server to perform it's role. My reading on automount seems to suggest that there's no way to get it to do it's thing with authentication, though I'm happy to be proved wrong. I've looked at this resource, but it requires version RedHat (thus CentOS) 6 or higher, and newer packages than I have. I can manually (As root) mount the AD directory using the command mount.cifs "//ad.server.dom/Shares/home directories/testuser" /home/local/AD/testuser/nfs_mount/ -o username=testuser and when I log in as testuser, I can see all of the sample files in the nfs_share directory. Any tips towards the right direction would be highly appreciated. This is going to be on a server at a college, so it needs to be fairly stable, and would lead towards more Linux adoption there.

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  • PXE Boot not working

    - by Nishant
    Please explain the error in this screenshot DHCP Setting: This screenshot was taken after powering off the old comp hence he server interface is shown as the wireless card - it becomes 192.168.0.1 when I connect wires and power up the old laptop to boot via PXE. My scenario is simple. An old laptop and a new laptop . A cross over cable ( that I myself made from CAT 6 cable by cutting it and connecting 4 wires as mentioned in some doc). The new laptop ( tftp server ) has a Wirelss Card ( with which I am browsing and writing this ) . And the cable is connected between laptops . TFTP server ( new laptop details ) Windows IP Configuration Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : Link-local IPv6 Address . . . . . : fe80::f511:3d4a:ca01:122e%16 IPv4 Address. . . . . . . . . . . : 192.168.0.1 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.0.2 Wireless LAN adapter Wireless Network Connection: Connection-specific DNS Suffix . : Achilles Link-local IPv6 Address . . . . . : fe80::99b1:8ae0:9e6c:f300%11 IPv4 Address. . . . . . . . . . . : 192.168.2.3 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.2.1

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  • Force local IP traffic to an external interface

    - by calandoa
    I have a machine with several interfaces that I can configure as I want, for instance: eth1: 192.168.1.1 eth2: 192.168.2.2 I would like to be able to forward all the traffic to one of these local address trhough the other interface. For instance, all requests to an iperf, ftp, http server at 192.168.1.1 are not just routed internally, but forwarded through eth2 (and the external network will take care of re-routing the packet to eth1). I tried and looked at several commands, like iptables, ip route, etc... but nothing worked. The closest behavior I could get was done with: ip route change to 192.168.1.1/24 dev eth2 which send all 192.168.1.x on eth2, except for 192.168.1.1 which is still routed internally. The goal of this setup is to do interface driver testing without using two PCs. I am using Linux, but if you know how to do that with Windows, I'll buy it!

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  • Force local IP traffic to an external interface

    - by calandoa
    I have a machine with several interfaces that I can configure as I want, for instance: eth1: 192.168.1.1 eth2: 192.168.2.2 I would like to forward all the traffic sent to one of these local addresses through the other interface. For instance, all requests to an iperf, ftp, http server at 192.168.1.1 should be not just routed internally, but forwarded through eth2 (and the external network will take care of re-routing the packet to eth1). I tried and looked at several commands, like iptables, ip route, etc... but nothing worked. The closest behavior I could get was done with: ip route change to 192.168.1.1/24 dev eth2 which send all 192.168.1.x on eth2, except for 192.168.1.1 which is still routed internally. May be I could then do NAT forwarding of all traffic directed to fake 192.168.1.2 on eth1, rerouted to 192.168.1.1 internally? I am actually struggling with iptables, but it is too tough for me. The goal of this setup is to do interface driver testing without using two PCs. I am using Linux, but if you know how to do that with Windows, I'll buy it!

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  • Vmware - How do i config a host-only network

    - by nXqd
    The understanding about Host-only: I use VMware 7, Vmnet1 is the host-only adapter for host and it's IP is 192.168.209.1 . I'm really confused about this , does it connect to Vmnet 1 switch and Vmnet has DHCP also, it provieds IP range: Why it has virtual host adapter ( Vmnet 1) has IP which isn't in range while it's just an adapter in virtual network, it connects through switch Vmnet like the guest adapter Waiting for your answers , thanks in advance :)

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  • How to change 802.1x settings for Wireless in Windows XP SP3?

    - by mspoerr
    Hello, I want to configure EAP-TLS with Machine Authentication ONLY for a wireless network. The supplicant is the bulit-in supplicant in Windows XP SP3. I found the following document: http://support.microsoft.com/kb/929847 - How to enable computer-only authentication for a 802.1X-based network in Windows Vista, in Windows Server 2008, and in Windows XP Service Pack 3 But unforunately the needed command "netsh wlan" is not available in Windows XP - "Note Windows XP SP3 and earlier versions of Windows XP do not support the netsh wlan command." How can I change the settings without the "netsh wlan" command? Thanks, mspoerr

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  • regarding port forwarding

    - by girinie
    Hi I have designed a chat application using servlets and jsp. I do not like it to host on any web hosting sites. I wanna make my computer only as server and wanna make it accessible to the users of different network. Can anybody explain me how can this be achieved. I will be really thankful. I was said that use port forwarding how can this be solved using port forwarding?

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  • Spoof user agent for GoGo Inflight Internet?

    - by AndyL
    Is it possible to trick the GoGo Inflight WiFi on airlines into thinking that you have a mobile device instead of a laptop? It seems like most airlines that offer in flight wireless these days use GoGo. They offer different pricing for mobile and laptops. It seems like they are checking the browser's user agent. Out of curiosity, is it possible to use a Firefox extension like this one to spoof the user-agent and allow a laptop to access the internet under a GoGo mobile plan? How would GoGo handle something like an IMAP email client, like Thunderbird. Do IMAP clients have a user-agent field as well that would normally identify whether the mail client is running on a laptop or mobile device?

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  • Very low throughput on 10GbE network

    - by aix
    I have two Linux machines, each equipped with a Solarflare SFN5122F 10GbE NIC. The two NICs are connected together with an SFP+ Direct Attach cable. I am using netperf to measure TCP throughput between the two machines. On one box, I run: netserver and on the other: netperf -t TCP_STREAM -H 192.168.x.x -- -m 32768 I get: MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 192.168.x.x (192.168.x.x) port 0 AF_INET Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 87380 16384 32768 10.02 1321.34 The measured throughput is 1.3Gb/s. This is 7.5x below the theoretical maximum, and only 30% faster than 1GbE. What steps can I take to troubleshoot this?

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