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  • Building a Mac/PC Network in a Dorm with Network Restrictions

    - by user70340
    I have been a Windows XP user for the last few years, but I recently bought a 15'' MacBook Pro for research purposes. I would like to set up a no-hassle Mac/PC Network at home so that I can access the internet on both computers and hardware between computers (i.e. a harddrive, or a mouse/keyboard with Synergy). Unfortunately, I live in a dorm with silly network restrictions so a solution is not straightforward. In particular: The dorm has a wired and wireless network, both which provide an internet connection. The wired network provides way faster internet (download speeds of 15 MB/s vs. 2 MB/s on wireless), so I would like to somehow exploit this, at least on my PC for Bittorrent :) Multiple devices can connect to the wireless network, but cannot "see" each other on the network (so software like Synergy would not work). Only 1 MAC address can connect to the wired network at a time. Ideally I would just connect a wireless router to the wired network and then have both the Mac and the PC on that, but the 1 MAC address restriction will not allow the both computer to access the internet simultaneously. I cannot think of a way to bypass this restriction (though I'm not network savvy), so I am planning to create a private no-internet network to allow the devices to see each other and share hardware. Here are some thoughts. I would appreciate any feedback at all! If I build a private wireless network: (first choice) I will use a wireless router that is not connected to the internet. My PC and Mac will be connected to each other wirelessly. I can then connect the PC to the internet via a wired network, but then the Mac will not have internet access as its wireless card is already in use. In this case, could I stream internet access from the PC to the Mac via the wireless network? Or could I buy a USB wireless card for the Mac so that it can connect to both my private network and the dorm network? If I build a private wired network: (second choice) Then both the PC and the Mac will connect to the internet wirelessly, which means I cannot take advantage of the faster download speeds.

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  • Remotely Installing Windows 2008 on SunBlade 6000/6250... any gotchas?

    - by Warpraptor
    I'm preparing to remotely install Windows 2008 Standard onto a 6250 blade module mounted in a SunBlade 6000 chassis rack. Are there any gotchas (aside from the predictable issues related to bandwidth in transferring the ISO, etc.) for this? Has anyone else successfully completed this task? I'm not a hardware guy, I'm a software guy who has been handed this task because the guys in the datacenter don't want to touch it. Any help is appreciated.

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  • How should I use LVM with Ganeti?

    - by javano
    I am building a small Ganeti cluster on some low end hardware (I only have the resources given sadly). I am confused as to the use of LVMs with DRBD. I have two instances and three nodes. What I want is instance1 replicated between node 1 & 2, and instance2 replicated between nodes 3 & 2 (so node2 is doing nothing, except waiting for either node1 or 3 to fail, is it is the secondary node for both instances). This is because node2 is a lower hardware spec than 1 and 3, so I just want it as an hot-spare. How can I achieve this? I don't want instance1 being replicated to node3 for example, nor instance2 replicated to node1. Nodes 1 & 2 have /dev/sda5 which is 150GBs (for example). Nodes 2 & 3 have /dev/sda6 which is also 75GBs (for example). Using just nodes 1 & 2, after looking at the Ganeti docs I would; vgcreate my-vg Next I would create the cluster via gnt-cluster VG = "my-vg". It is here I believe that I am missing some knowledge. I believe that what I need to do is create the same Logical Volume on nodes 1 & 2 in Volume Group "my-vg", that solely consists of /dev/sda5 and call it "lv1". Then create an Logical Volume on nodes 2 & 3 the solely consists of /dev/sda6 in "my-vg" that is called "lv2". When creating instance1 I would then use "-vg=lv1 -n node1:node2", and when creating instance2 I would use "-vg=lv2 -n node3:node2". I breifly had a go at this today and I'm dubious if this will be possible. When trying to create instance2, "lv2" wont exist on node1 (the cluster master) so I don't believe it will allow the instance creation. Could I create a 1kb parition (/dev/sda6) on node1 and put it into a LV called "lv2" or is that too flakey? Is this set up possible? Thank you.

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  • How can I map my server's domain to my IP address?

    - by samoz
    I rented some server space from a new host and have a static IP address and a domain name that I previously purchased, but I do not know how to register the domain name to point to my server. My previous host did this for me, but my new host only offers hardware, i.e. they won't do it for me. How can I register a domain name I own to point to my server's IP address?

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  • How do I choose the number of connection for load balancer?

    - by user105196
    I want to add hardware load balancer for apache and I want to know how many people are connected to my server to to choose the type of load balancer: Local Load Balancing with SSL - 250 Connections Local Load Balancing with SSL - 500 Connections Local Load Balancing with SSL - 1000 Connections I run the following commands in the same time: netstat -nt|grep -c :443 ( all connection wait and ESTABLISHED) result : 1208 netstat -ant | grep 443 | grep EST | wc -l ( just ESTABLISHED connection) result :106 My question: Whichever is the correct value to choose the load balancer all connection or just ESTABLISHED ?

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  • Intel GMA 4500MHD flickering in opengl

    - by Aaron
    I have an application that uses OpenGL for its display. When this application is run on a laptop with an Intel GMA 4500MHD on Windows XP the OpenGL content appears to flicker/shudder between 2 frames. I have experienced the exact same problem when running this application on nVidia Quadro FX hardware, however with nVidia the problem can be corrected by disabling the "Unified Back Buffer" (UBB) feature in the driver. Does anybody know how I can disable the corresponding feature in the Intel driver?

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  • Random Computer Crashes

    - by Josh W.
    Ok, here's a wierd one for you all. Occasionally my PC here at work will crash in a very peculiar way. My dual monitors will suddenly go blank as if there is no longer a video signal, the USB mouse light will go dark and mouse stays unresponsive, the keyboard lights will not change status when the appropriate keys are pressed (Num/Caps/Scoll Lock). The CD Tray WILL open and close. But the computer will not respond to a ping request. For all intents & purposes it's as if the computer is off, except it wasn't intentional by me. The power light and internal fans are still on and I've now lost any unsaved work. Now here's where it gets wierd. This PC is part of a batch of PC's we got from a local vendor who does our initial system builds. Mine, and 6 other co-workers PCs all have the same issue. Originally we thought it was a bad combination of hardware, but through trial and error the only thing we haven't eliminated are the OS, Mobo & CPU. The problem was so bad for some of them that they ended up going back to their 5 year old dinosaurs in order to get some work done, for me the problem isn't as bad, maybe once every other day or so, but still enough to bite me in the ass if I've forgotten my ritualistic pressing of CTRL-S every 1-5 minutes. In this case we've tried two different video cards, two different power supplies, two different memory configurations, running on a UPS/not on UPS, updating/rolling back video drivers, three different bios revisions. The only things we haven't swapped are the mobo & cpu, mainly because a new mobo means a new Hardware Abstraction Layer, ie re-install of windows and there's alot of other software on this PC that takes forever to reload by hand. There was a base image that our systems team created with all the drivers installed and the basic setup of software our company uses, but they then must customize the setup for us programmers so it takes a while to get a new configuration up and going. I'm a programmer by day and am usually pretty good at diagnosing computer problems whether through trial and error or not. We've pretty much exhausted all the ideas we can think of here, short of a new mobo/cpu. Was hoping someone out there might have anything else we can try.. Relevant Parts: OS: XP Pro 32-bit Motherboard: Intel DG41RQ CPU: Intel Core-2 Quad Q9400 @ 2.66GHz Current BIOS Version/Date Intel Corp. RQG4110H.86A.0014.2010.0306.1151, 3/6/2010 Dual LCD's, Viewsonic VG930m & Samsung SyncMaster 910v (other people have different models, but listed in case there's some very wierd problem with the signals being sent/received) PS/2 Keyboard USB Microsoft Intellimouse BIOS Versions Tried: R 0013 12/23/2009 R 0014 3/6/2010 Video cards Tried GeForce 8400 GS Radeon HD 4350 - ASUS EAH4350 Two Different Power Supplies a 380W & 550W Ram Configurations 2GB - 1 x 2GB 4GB - 2 x 2GB

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  • Network and Server Management Tools

    - by jessieE
    We are building a farm of test servers. Currently we have 8 servers. We are planning to use the servers to test the following Mysql Cluster Xen or KVM virtualization Heartbeat/Pacemaker/DRDB What tools do experienced sysads use for: Initial installation of operating system( installing centos 5 or ubuntu server manually 8 times seems like a tedious task that just begs for automation) Centralized Configuration Management and Software Updates for Host and possibly Guest(virtualized) servers Hardware, Services and Network Monitoring

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  • How to stream TV/Films/Music over the internet to various devices from a home server?

    - by ritch0s
    Set up: An always on old-ish laptop connected to a NAS which contains TV/Films/Music. I want to be able to stream on the fly the data on my NAS to various connected devices such as iphone or laptop. I am currently using Orb (orb.com) mycast software but the requirements for the streaming are very high in terms of processing power is there alternative software and dedicated hardware i can add to get maximum benefit from this setup?

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  • Recognition of USB drive

    - by lamcro
    I have a Motorola phone, with a MicroSD slot, which my Ubuntu machine does not recognize as a USB drive. It does know there is something there since It automatically charges my phone whenever I connect it. using the command lsusb shows it as "Motorola PCS" Is there a way to tell Ubuntu/Linux that the connected hardware is a disk drive?

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  • Emacs 22 (GTK) cannot be installed on your computer type (i386)

    - by Aravind
    when i was trying to install emacs on Linux Ubuntu .I used to search emacs in add/Remove search toolbar it shows Emacs 22 ..i have double clicked that emacs it shows the following error. Emacs 22 (GTK) Canonical Ltd. provides technical support and security updates for Emacs 22 (GTK) Emacs 22 (GTK) cannot be installed on your computer type (i386). Either the application requires special hardware features or the vendor decided to not support your computer type.

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  • Reverse KVM solution

    - by aksamit
    I need to setup a computer so that it can be operated from two locations. The locations are about 20 meter from each other and the user wants the experience to be the same from both locations, i.e. no remote desktop or anything like that and preferably a seamless switch. So basically I need a double set of, monitor, keyboard and mouse, and then of course link it together by some kind of suitable hardware.

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  • Linux tools to choose suitable Cisco ASA 5500

    - by linuxcore
    I have a linux webhosting server which affects a high DDOS. I want to use Cisco ASA 5500 Series Adaptive Security Appliances to protect the linux server from this DDOS. I know there are many factors should you know before you choose the suitable hardware firewall like the amount of this DDOS and pps ..etc Please suggest a linux tools to measure those factors and to help me collect the required informations ( pps - amount of DDOS - concurrent connections and other factors ) Regards,

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  • External hard drive is recognized but not mounted in OS X

    - by Sam Bryant
    My external HD got unplugged without ejecting and my Mac will no longer mount the drive, but it recognizes it's there. I already tried repairing the disk in Disk Utility, and erasing it in Disk Utility, and it still won't mount. I can't imagine the hardware is actually damaged otherwise it wouldn't even recognize it (Right?). Is there any other software solution I can try? Recovering my files is not a concern.

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  • iTunes Title Bar is Equal to the Location of the Library file?

    - by Urda
    I have never been able to get a clear answer on why the latest edition of iTunes does this. I have my entire iTunes library located in C:\itunes\ and the library data files inside C:\itunes\!library_info for backup purposes. However when version 9 of iTunes came out it went from having iTunes as the title, to !library_info. Anyway to get around this without moving my data files away? Annoying "feature" if that is what it is. Again Apple support and forums were of no help to me. Anyone have insight on this? System Info: Windows Vista x86 Ultimate, latest updates. iTunes Version 9.0.3.15 Screenshot: http://farm5.static.flickr.com/4072/4414557544_d0b25eb64c_o.jpg Flickr Page: http://www.flickr.com/photos/urda/4414557544/ UPDATE: I put a bounty on this, and would be open to hacking the registry or doing a custom config. Please help me fix my title bar!!! Update2: I would not like to move my library files out of itunes\!library_info to avoid them inter-mingling with my music library.

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  • How can I turn my server box into an internet modem?

    - by Robbie Mckennie
    I've been trying to learn about networking, network maintenance, network administration, stuff of that nature (I want to be a network engineer when I get out of university after I get out of high school) and I want to set up my older PC (running Slackware) as a modem, as a project to help me learn. I want to know what kind of hardware I'll need. Pretty much all I know is that my current modem uses ADSL2+ and PPPoA, which I think is a software thing anyway. How can I accomplish this?

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  • Wirelss card not being detected in backtrack 5

    - by Jesse Nelson
    I just installed backtrack 5 and I am unable to detect my wireless card. iwconfig doesn't list my interface. I can see that the hardware is present in lspci -vnn (see below) but I can't get the interface detected. I have tried to reinstall the compat-wireless package but I get errors during the build (see below) I have done a ton of researching and I keep hitting a brick wall, mostly because the wiki for backtrack is down and I can't find any good resources. Does anyone know how to fix the issue? Also, does anyone no how I can scan the hardware to determine what NIC is assigning my interface? If I can figure out the interface name I think I can set it up manually by putting up the link and using wireless-tools to manually configure the connection, this is what I had to do in arch on my mac. As stated the wiki for backtrack is down and I can't find any help on the issue. I tried to do the full kernel upgrade suggested in my software update but after the update was complete and I logged back in I had a new log in manager and the only thing I was able to log into was window managers. However, after this update my wireless was working fine. Please help I am new to Linux and the wiki is down, I have nowhere else to turn. Forgot to mention I am using the KDE version, not Gnome. Thanks in advance for any help or support. Attempt at make: root@bt:/usr/src/compat-wireless-3.3-rc1-2# make /usr/src/compat-wireless-3.3-rc1-2/config.mk:254: "WARNING: CONFIG_CFG80211_WEXT will be deactivated or not working because kernel was compiled with CONFIG_WIRELESS_EXT=n. Tools using wext interface like iwconfig will not work. To activate it build your kernel e.g. with CONFIG_LIBIPW=m." make -C /lib/modules/2.6.38/build M=/usr/src/compat-wireless-3.3-rc1-2 modules make: *** /lib/modules/2.6.38/build: No such file or directory. Stop. make: *** [modules] Error 2 lspci output: root@bt:/usr/src/compat-wireless-3.3-rc1-2# lspci -vnn -i net lspci: I/O error at net, line 0 root@bt:/usr/src/compat-wireless-3.3-rc1-2# lspci -vnn 02:00.0 Network controller [0280]: Atheros Communications Inc. Device [168c:0032] (rev ff) (prog-if ff) !!! Unknown header type 7f ( This is the problem but I can't find the solution) Kernel modules: ath9k iwconfig output: root@bt:/usr/src/compat-wireless-3.3-rc1-2# iwconfig lo no wireless extensions. eth0 no wireless extensions.

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  • Windows powering off after login

    - by Jack
    As soon as I logon to Windows 7 64bit, the computer restarts. It isn't a hardware issue, as linux works fine. Windows 7 64 bit. Safe mode, last known good configuration etc, nothing makes any difference. Nor does startup repair or sfc. I used DaRT to check the event log, and nothing is recorded. How can I troubleshoot this?

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  • Documenting Client Infrastructure

    - by Richard B
    Working on a new project, and need some documentation advice. I need to be able to document ~ 400 client sites to track assets, setup, hardware layout, network layout, etc. We want to have photos, maps, etc. wherever possible. We need this for a call center environment. Has anyone found any off the shelf software that performs this functionality, or are we on our own to develop the tools that we require?

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  • Create image from RAID images

    - by myforwik
    I have 3 raw images of what was once a 3 disk RAID5 setup. The hardware has been lost and the configuration is unknown. Does anyone know of some software that can automatically detect the raid configuration and write a single image out?

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  • Feasible to use a laptop as a Digital Media Receiver/Extender?

    - by philosaur
    Since the price of many dedicated hardware Digital Media Extenders is only slightly lower than that of a cheap laptop, is there any reason you couldn't use a laptop as a Digital Media Extender? I'm looking for specific reasons that might make this unworkable. For instance, would the small screen/low-power video card of the laptop prevent the movie from playing well on the TV?

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  • I am getting unmountable_boot_volume STOP 0x000000ED

    - by waterfalrain
    I read somewhere that the Ultimate Boot CD can diagnose computer problems. In this case would this program help me get my Windows XP back? When I turn on the screen and hit "Start Windows Normally" or go to Safe Mode I get a flash of the WinXP logo and then it goes to this error page. Can you tell from this message is it a hardware or software issue?

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  • Sound problem in my Desktop

    - by bobby521
    I have a Dell Dimension 5150 desktop, I am not able to hear any sound when any audio file is playing, I have checked the audio drivers and have downloaded the drivers from the dell site, Is this a Hardware problem with the sound card, in case is there any way to find out whether its the problem with the sound card or any suggestions is greatly appreciated

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  • Recommendation for a touch-enabled dev laptop

    - by Clay Shannon
    I don't keep up with hardware much, so would appreciate any tips on what would be a good touch-enabled laptop that I could use for both development and testing of Windows 8 ("Metro"/Store) apps. Is there even such an animal (a touch-centric laptop)? Or will I need to use a laptop for development (in which case I might be able to upgrade my RC version of Windows 8 on my existing laptop to RTM) and purchase a tablet for testing?

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  • Can I use iptables on my Varnish server to forward HTTPS traffic to a specific server?

    - by Dylan Beattie
    We use Varnish as our front-end web cache and load balancer, so we have a Linux server in our development environment, running Varnish with some basic caching and load-balancing rules across a pair of Windows 2008 IIS web servers. We have a wildcard DNS rule that points *.development at this Varnish box, so we can browse http://www.mysite.com.development, http://www.othersite.com.development, etc. The problem is that since Varnish can't handle HTTPS traffic, we can't access https://www.mysite.com.development/ For dev/testing, we don't need any acceleration or load-balancing - all I need is to tell this box to act as a dumb proxy and forward any incoming requests on port 443 to a specific IIS server. I suspect iptables may offer a solution but it's been a long while since I wrote an iptables rule. Some initial hacking has got me as far as iptables -F iptables -A INPUT -p tcp -m tcp --sport 443 -j ACCEPT iptables -A OUTPUT -p tcp -m tcp --dport 443 -j ACCEPT iptables -t nat -A PREROUTING -p tcp --dport 443 -j DNAT --to 10.0.0.241:443 iptables -t nat -A POSTROUTING -p tcp -d 10.0.0.241 --dport 443 -j MASQUERADE iptables -A INPUT -j LOG --log-level 4 --log-prefix 'PreRouting ' iptables -A OUTPUT -j LOG --log-level 4 --log-prefix 'PostRouting ' iptables-save > /etc/iptables.rules (where 10.0.0.241 is the IIS box hosting the HTTPS website), but this doesn't appear to be working. To clarify - I realize there's security implications about HTTPS proxying/caching - all I'm looking for is completely transparent IP traffic forwarding. I don't need to decrypt, cache or inspect any of the packets; I just want anything on port 443 to flow through the Linux box to the IIS box behind it as though the Linux box wasn't even there. Any help gratefully received... EDIT: Included full iptables config script.

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