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• Can I set up a 2nd home wireless router, with router2 connecting to the internet through a desktop which is wirelessly connected to router1?

  - by gil b.

  Hi, I apologize for the crudeness of my MSPaint drawing, but please view my diagram of what I'd like to accomplish: Proposed home network architecture Currently, all devices are connected to 1 wireless router. I would like to make my own subnet, with a box in-between my subnet and the shared wireless router, so that I can learn about IDS, traffic analysis, etc. I was also given a cisco PIX firewall to play around with, and it'd be an added bonus if I could incorporate that into my network. The reason for this proposed architecture is so that I can monitor all MY traffic, without seeing anything going on with my roommates' traffic. my MAIN Question is, is it possible to have my desktop connect to the wireless router with internet via wireless card AND share that connection via the ethernet card, hooked to wireless router 2? cable modem - wireless router - desktop pc connected wirelessly - wireless router 2 getting internet from wired connection to desktop pc - laptops connected wirelessly The PIX can be left out for now, but I'm wondering if it could eventually be incorporated? THANKS!

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• Radeon 4670 Card Has 2 DVI Outs But Only Works When One is used in Win7 x64

  - by ssmith

  I have an ATI XFX Radeon 4670 1GB video card in a Windows 7 Ultimate x64 setup. If I only use one monitor, all is well. If I plug in a second DVI cable to the card, both monitors go dark. I can get one or the other to display, but only when it is the only one plugged into the card. I'm really hoping for a dual-monitor setup here as that was the point of the card. I'm using ATI Radeon HD 4600 Series video drivers dated 11/24/09 (8.681.0.0) which are the latest from their site and are supposed to work with Vista or Win7 x64. When the computer boots with both displays connected, both monitors display the inital bios and boot screens. The Win7 splash screen also displays, but by the time it goes to the login screen, one monitor is offline.

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• Connecting switch to switch to router

  - by elated

  Hello, Not sure if this is the right place to ask this question. But I have a router which connects to the internet. Now I have a switch connected to this router. I added a lot more computers so I added another switch and connected it to the first switch using a cross-over cable. As soon as I connect it to the first switch, my lights in first switch start blinking like crazy and my entire network simply stops working. The minute I remove the second switch's wire, its all fine again. What could be the problem?

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• How to get started setting up IP security cameras

  - by dave

  I have just finished renovating my house. As part of the job, I have cat6 cable run through the house, including two external plugs. All cables terminate in the same location. My rough plan is to plug two IP cameras to monitor the front and rear, run POE from a central router to the two external cameras, plug my PC into the same router and run magic software X. Any machine plugged into the router or wirelessly connection should then be able to get a live feed and alerts based on motion detection. That's the plan, but I'm not sure how possible it is. What hardware to get and what monitoring software to get. Has anyone does something similar? What were your experiences?

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• Connect to wired and wireless networks at same time, Ubuntu

  - by Gary Chambers

  Currently, I have a media PC running Ubuntu 10.04 that I am trying to connect via a wired network cable directly to a NAS box, and wirelessly to the router. This works no problem after I run sudo /etc/init.d/networking restart but I can't get both interfaces to come up on system startup. My /etc/network/interfaces file reads as follows: auto eth0 iface eth0 inet static address 10.0.1.2 netmask 255.255.254.0 broadcast 10.0.1.255 network 10.0.1.0 auto wlan2 iface wlan2 inet dhcp As I say, I know this works, because I can get it to work by restarting the network interfaces, but I can't bring them both up on system startup. Does anyone know why this might be?

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• Need help connecting to SRW2024 Linksys Switch from CentOS 5.4

  - by sxanness

  I am configured a Linksys SRW2024, I accidently changed the management VLAN before changing the VLAN configuration thus I can no longer access it with the net. The only way I have read to get into it now is via a console cable, my laptop with me is a MacBook Pro with no Serial port connection, apart from driving around a town that I am unfamilar with to find an adapter I thought I would try on a Linux box. I have a CentOS 5.4 server here (PowerEdge R300) that I am trying to use to talk to the switch. I tried minicom first but I do not see the console. Another site suggested the screen command. I tried "screen /dev/ttyS0 38400" but all I get is blinking curser, I do not see the configuration. I don't know if anyone here as any tips but I hope someone does. Thank You,

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• Bound external Cisco CIGESM ports to a specific BladeServer

  - by Vinícius Ferrão

  We have an IBM BladeCenter with 14 blade servers and one external Cisco CIGESM for Ethernet connectivity. Since this hardware is a little old, we will use it for other services, and we want to run a pfSense instance on one of the blades. It's just an Firewall Appliance, but it needs two network interfaces: one for the WAN and the other one for LAN access. Our architecture works on top of static routes, we don't use NAT, so we got the WAN IP in one interface routing to the another one. The main problem is how to plug the WAN cable in one of the four external ports and make it exclusive to the blade server containing the firewall. And we also need an exit port that goes through a 3COM 4200G switch that makes the internal routing and VLAN separation. Thanks in advance

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• How to use 3T SAS HDDs which aren't supported by Dell PERC 6i

  - by Sunry

  We bought several 3T SAS hard disks want to use with our Dell R710 server. But we found our R710 can't recognize the 3T hd, and then we dig out the raid card is PERC 6i which doesn't support it. Contacted with Dell that H700 and H800 support 3T hd, thought we can buy a H700 , but the SAS cable is not available in the market right now. And it seems very hard for us to change the raid card, also no suitable tools to tease the special screws. So I want to know if any other method to use these 3T hds instead of putting them in the warehouse? Can I low formatting it to 2TB, and plug it into Dell R710 to use? Or a SAS to USB adapter to use it as USB external disk? I just want to use them by Dell R710 even external.

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• Monitor weirdness/flickering with new Viao PCG-3112L

  - by Rosarch

  I have a Sony VAIO PCG-3112L running Windows 7. It worked fine on one monitor, but now I'm using it with a 2 year old LG Flatron W2252TQ-TF. The colors are sorta off (although that might just be the monitor), but more annoyingly there are many horizontal flickering lines. It's more noticeable on non-white backgrounds. I tried rebooting the monitor, and reseting it to factory settings, but that didn't solve the issue. What could be the cause of this? The monitor works fine with an Asus netbook. I have checked that both ends of the VGA cable are plugged in between the Vaio and the monitor.

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• Wireless bridge between two prolink adsl modem/router

  - by MyName

  Allright, so i've got 2 prolink hurricane h5004n. Its a broadband adsl modem and router. My Pc is connected to the first one via ethernet. What i want to do is a wireless bridge to make the 2 routers "talk". I've tried hooking up the dsl cable (as they are modems) in both to try but when one disconnects as the other connects. I don't really know about the configurations to be done of all the DCHP or RIP and NAT forwarding stuffs. (i'm just writing what i saw) In short i want the second router to act as a wifi repeater but i don't see any repeater option and i also do not want to connect them via ethernet. So is it possible to do something? Apart from buying another repeater i don't want to spend anymore i'm done :S

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• Need to hookup HP dv7-3085dx with Nvidia GeForce GT 230M to my Dell 30 inch LCD 3007WFP at max resol

  - by user14660

  I recently bought an HP laptop (dv7-3085dx) (http://reviews.cnet.com/laptops/hp-pavilion-dv7-3085dx/4505-3121_7-33776108.html) which is supposed to have a pretty good video card (NVIDIA GeForce GT 230M). The card is supposed to output a max resolution of 2560x1600 which is also the max resolution of my monitor (http://www.ubergizmo.com/15/archives/2006/02/dell_3007wfp_on_dell_2001fp_action_8_megapixel_desktop.html). Now I bought an HDMI to dual link dvi (http://www.amazon.com/gp/product/B002KKLYDK/ref=oss_product) cable...this is after Best Buy's 70 dollar hdmi to dvi (perhaps it was 'single' link?) didn't give me the best resolution. In windows 7, when I try to set the max resolution for my 30 in monitor, I only get 1280x800...which is absurd. The monitor is great, I love the laptop and the video card supposedly supports such resolutions. So I can't figure out why I'm not getting better resolution (by the way, when i "detect" my monitor in windows 7, it is shown correctly as DELL 3007WFP!).

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• Configuring Wireless Network

  - by Vinod K

  I have vyataa router on VMware with 2 interfaces eth0 and eth1 eth0 is facing the internet eth0 is in Nat mode with dhcp on eth1 is in bridged mode with my ethernet with ip 10.0.2.34/24 The ethernet card is at ip 10.0.2.95/24 i have defined the nat rule. Hence internet is available at eth1 too. Now i am connecting a wireless router at "eth1" iball router, I have connected the router using a cable to the ethernet interface of my laptop. I have configured the WAN connection type as "Static IP" and given "10.0.2.34/24" All the clients that connect using wireless router cannot connect to the internet though. Could anyone provide me a solution for this.. Thank You!!

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• Trouble with resolving hostnames on CentOS using Bind

  - by cabaret

  I'm taking a course on server administration at school and I have managed to set up virtual hosting in apache and a dns server on a virtual machine. However, I have now set up an old pc to run CentOS and I'm trying the same on that box. The problem I ran into now is that I can't resolve hostnames from the linux box. I have set up the nameserver in /etc/resolv.conf to the IP of the CentOS machine, but when I try for example ping google.com I get ping: unknown host google.com However, when I do ping 66.102.13.105 (which is the Google IP, figured that out by pinging on my mac) I get: PING 66.102.13.105 (66.102.13.105) 56(84) bytes of data. 64 bytes from 66.102.13.105: icmp_seq=1 ttl=52 time=15.5 ms Slightly confused why this is happening. Could it be because of my router sitting in between the linux machine and the cable modem? It's a D-Link somethingsomething. Thanks in advance

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• One NIC going to sleep on Centos system

  - by sbleon

  I have two Dell boxes with two ethernet ports a piece. I have a cable directly connecting two of these ports, creating a tiny LAN with 10.3.3.x addresses. The other port on each box is hooked up to a switch and has a DHCP-supplied address to talk to the outside world. I've noticed that when scp'ing large files from one box to the other over the private LAN, the transfers sometimes stall. It appears that any other network activity on either box will cause the transfer to resume. Wake-on-LAN is disabled on all interfaces according to ethtool. What else could be causing these stalled transfers?

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• Using video ports 'backwards'

  - by ACarter

  If I want to connect my laptop, which has a VGA output, to a monitor, I plug a VGA cable into both ends. The output being my laptop, and the input the monitor VGA output sockets are the same as VGA input sockets however, so what if I want to use my laptop as the monitor, with the video being outputted from somewhere else? As I said, VGA's output is the same as input, so in theory, I have the hardware in my laptop to do this. But presumably I need some software. So can I use the VGA port on a laptop as a video input? (And also, can this be done with HDMI?)

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• How can I connect a blu-ray player to a VGA screen?

  - by zaplwo

  Basically, I have a blu-ray player that I wanted to be connected to a projector and a monitor screen at the same time, so I got a component splitter and a component to VGA cable. The splitter works fine but the component to VGA adapter doesn't show anything on the monitor screen; is like if nothing is connected to it. I already change monitors but 3 monitors do the same. Anyone have any idea why this is happening or how can I connect the monitor and the projector to the blu-ray?

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• Mac OS x 10.4 Tiger Will Not Boot

  - by keithbrown38

  My G5 Tower all of a sudden is ONLY booting to the Registration page, the where after you installed the software you are suppose to Register. I cant get it to boot in safe mode, so I am using my usb 2.0 SATA cable to connect my drive to a my macbook pro and I am using (CCC) Disc to Disc Clone and it is copying to my external WD passport drive and that makes a startup disc along with all my info from my drive. My question is was there anything easier and less time consuming than that? Does anyone know why this would happen all of a sudden? Thank You All in Advance for your help and support! Keith B

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• HDMI and DVI connected monitors not in dual view on Windows 7 (Intel onboard Gigabyte)

  - by Nux

  I have a HDMI to DVI cable which is connected to one monitor (HDMI is on PC side) and DVI-DVI connected to other monitor. This seems to work up until the system is fully loaded (the startup logo animation is shown on two screens). When and after I log in only one monitor is active (HDMI-DVI). I'm also unable to detect the other monitor (DVI-DVI). Any ideas what might be wrong with the setup? Also when I uninstall the Intel Graphics driver both screens are on, but only duplication works. GA-Z68A-D3H-B3, Intel Z68 Chipset, with fresh VGA driver (15.26.1.64.2618).

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• How to charge an iPhone on a Windows PC without Installing iTunes

  - by Martin Hollingsworth

  I want to be able to charge my iPhone on my work computer, which is running Windows Server 2008 SP1 64-Bit. When I plug the iPhone in with the USB cable, it will not charge. Windows attempts to locate a driver for the device but only comes up with a generic Camera device and even if I allow that to be installed, the iPhone still does not charge. I have checked the computer's BIOS settings and did not find anything relating to power on the USB devices. I also tried this on ports at the back of the computer in addition to those on the front. The PC is a Dell Optiplex 780. As far as I can tell USB devices do not charge unless Windows has installed an appropriate driver. Since it is a work computer I do not want to install iTunes which does include a driver. I have a workaround that I will post as an answer for reference.

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• Why can't my networks reach each other?

  - by HOLOGRAPHICpizza

  We have two Buffalo WZR-HP-G300NH2 routers, with the default firmware, DD-WRT v24SP2-MULTI (10/31/11) std - build 17798. Each has a separate cable internet connection with a public static IP address. They are both in the 24.123.68.0/24 space. Both of them can contact pretty much the whole internet, and they can both be accessed out on the internet with no problem, but for some reason they can't talk to each other! When I try to ping one from the other I always get "Destination Host Unreachable". There are no strange routing or firewall rules in place. And they are both set to respond to pings, I can ping them from outside. Our main IT guy is going to call our ISP on Monday, but I'm impatient, so does anyone have any ideas?

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• Ways to do simple failover with one server and two IPs

  - by CrassHoppr

  The setup is one server (Windows 2008) at one location with two incoming connections. As the server has to interface with various on-site devices, and will have a small number of incoming connections, a data center is not an option, and instead cable/dsl connections must be used. The goal is that users visit https://service.site.com and are sent to either the primary IP address or a secondary IP if the primary is down. I've seen advice to use round robin DNS for this, but caching an IP for a downed interface is something I'd like to avoid. Is something like this possible with these constraints?

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• How can I troubleshoot SSD disconnection problems on Windows 7?

  - by 0xC0000022L

  I have a small SSD (Transcend StoreJet TS256GESD200K) which I am using on several computers. The drive is formatted with NTFS and recently I started noticing disconnects. Normally one probably wouldn't notice (you don't even get the notification sound in Windows when it disconnects), but since I use USBDLM and run a VM from that SSD, I get to see this first-hand. How could I best figure out whether the problem is the hardware (SSD, USB socket, USB cable or something in the PC) or software? In short: how can I locate the source of the disruption so that I can work on removing the problem? Side-note: SMART status for the SSD is clean.

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• What has changed to make it possible to develop USB3.0

  - by RoboShop

  Like I know the transfer speeds are vastly different. But I don't understand is why they are faster. And why couldn't they have implemented USB 3.0 when they released 1.0? Like what technical breakthrough was required to get transfer speeds that fast? Was it cost? capacities of computer? like they couldn't read the data fast enough? Although USB is still well below hard drive transfer speeds engineering breakthrough? They found some new material which could transfer at a faster rate? Was this in the cable itself? In the hardware?

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• Disable ALTQ for internal network traffic

  - by javanix

  I currently have a FreeBSD 8.2 media server set up on my LAN that I use to stream my music from. I also have an SSH login that I use to do file transfers to and from this server remotely. I would like to set up ALTQ (and have gotten this working) to limit my outgoing bandwidth from the server for SSH traffic. However, configuring ALTQ this way is also limiting my internal traffic (and thus interfering with my music streaming) since I am only using a single network interface. Can anyone show me how I would use PF and ALTQ to limit outgoing WAN traffic while allowing all internal LAN traffic to go through unhindered? ext_if="eth0" int_if="eth0" altq on eth0 cbq bandwidth 1Mb queue { std, ssh } queue std bandwidth 80% cbq(default) queue ssh bandwidth 20% cbq(ecn) pass out on eth0 proto tcp to port 22 queue ssh eth0 is my LAN interface, my total WAN bandwidth on my cable connection is 1Mb/s, and my internal network is 10/100.

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• Connecting a print/file server with no wired access

  - by PeanutsMonkey

  We currently have a printer server which also serves as a file server. The server is located on premise however is not close to any wired access point i.e. a patch panel or point. The server also requires access to the Internet as it transmits files across. We have a wireless modem and a wireless router. I can run a cable between the server and wireless router. How can I have the wireless router communicate with the wireless modem? If the operating system of the server is concerned, it is running Windows Server 2003.

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