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• How to run Firefox in Protected Mode? (i.e. at low integrity level)

  - by Ian Boyd

  i noticed that Firefox, unlike Chrome and Internet Explorer, doesn't run in the Low Mandatory Level (aka Protected Mode, Low Integrity) Google Chrome: Microsoft Internet Explorer: Mozilla Firefox: Following Microsoft's instructions, i can manually force Firefox into Low Integrity Mode by using: icacls firefox.exe /setintegritylevel Low But Firefox doesn't react well to not running with enough rights: i like the security of knowing that my browser is running with less rights than i have. Is there a way to run Firefox into low rights mode? Is Mozilla planning on adding "protected mode" sometime? Has someone found a workaround to Firefox not handling low rights mode? Update From a July 2007 interview with Mike Schroepfer, VP of Engineering at the Mozilla Foundation: ...we also believe in defense in depth and are investigating protected mode along with many other techniques to improve security for future releases. After a year and a half it doesn't seem like it is a priority.

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• OpenCV : How to display webcam capture in windows form application?

  - by sneixum

  generally we display webcam or video motion in opencv windows with : CvCapture* capture = cvCreateCameraCapture(0); cvNamedWindow( "title", CV_WINDOW_AUTOSIZE ); cvMoveWindow("title",x,y); while(1) { frame = cvQueryFrame( capture ); if( !frame ) { break; } cvShowImage( "title", frame ); char c = cvWaitKey(33); if( c == 27 ) { break; } } i tried to use pictureBox that is successful to display image in windows form with this : pictureBox1-Image = gcnew System::Drawing::Bitmap( image-width,image-height,image-widthStep,System::Drawing::Imaging::PixelFormat::Undefined, ( System::IntPtr ) image- imageData); but when im trying to display captured image from video it wont works, here is the source : CvCapture* capture = cvCreateCameraCapture(0); while(1) { frame = cvQueryFrame( capture ); if( !frame ) { break; } pictureBox1->Image = gcnew System::Drawing::Bitmap( frame->width,frame->height,frame->widthStep,System::Drawing::Imaging::PixelFormat::Undefined, ( System::IntPtr ) frame-> imageData); char c = cvWaitKey(33); if( c == 27 ) { break; } } is there anyway to use windows form instead opencv windows to show video or webcam? or is there something wrong with my code? thanks for your help.. :)

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• using RHEL5 as a router

  - by gopikrishna7779

  Dear Sir, I am planning to use a RHEL5 installed computer as a internet connection sharing device. I mean I want to share the internet connection through it I have installed 2 Lan cards in it eth0 and eth1 eth0 Internet eth1 LAN eth0 configuration as follows ; Ipaddress : 115.252.64.187 Subnet : 255.255.255.240 Gateway : 115.252.64.177 I wrote the following entries in Vim /etc/resolv.conf nameserver 202.138.96.2 (preferred DNS Server) nameserver 202.138.103.2 (secondary DNS server) :q! then eth1 ipaddress : 192.168.1.1 subnet : 255.255.255.0 gateway : 192.168.1.1 (I am confused which gateway I need to use in the above scenario) I am unable to ping to my lan and I am able to connect to the Internet. Please let me know the sollution for this. Thanks in advance. regards, G.Gopi Krishna

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• Hardware selection for Linux machine

  - by bguiz

  Hi, I am building a new box, and planning to install Ubuntu 9-04 or Ubuntu 9-10 on it. I am wary of the hardware selection because in the past I struggled with lack of drivers or driver incompatibility with the network card and video card, etc. The last time I built a Linux box was 2007, and I have not kept up to date with the changes since. One notable difference is that I can no longer find motherboards with nVidia chip sets. See what I mean (links to my local shop's website): Intel motherboards: http://www.centrecom.com.au/catalog/default.php?page=1&cPath=36_62 AMD motherboards: http://www.centrecom.com.au/catalog/default.php?page=1&cPath=36_63 I have already checked the Ubuntu forums, but their motherboards section is rather outdated, and I did not look further. I would like to know your suggestions for what Linux compatible hardware that you have got. Thank you!

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• Do I need VMWare vSphere?

  - by Gk

  I'm planning use vmware to upgrade some of very aged server instead replace with all new bunch of server. VMWare vSphere sounds great but because of low budget I can't afford for both licenses and SANs. Without SAN, is vSphere worth the price? As I know without SAN, the VMWare HA, VMontion, FT is unavailable. So, do I need vSphere or only ESXi free version assume that I only need backup vm daily? Do you know any completed solution about backup on ESXi 4? TIA, -Gk

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• Installing Windows 7 on an Asus EeePC 1008HA

  - by Keith

  I'm planning to install Windows 7 on my Asus EeePC 1008HA netbook. I heard that there were some issues with RC1, but other than that have not had much luck finding help with this specific hardware. The closest I've found is this article for the similar 1005HA. I can find XP drivers and have them downloaded just in case. Also (obviously) I've backed up everything on the machine. Anyone on here got any experience with Windows 7 on an Asus EeePC 1008HA? Anyone know whether the reported issues with RC1 have been fixed by the RTM and driver updates?

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• Bridging with aliased Ethernet card for Virtualizing with single Ethernet card

  - by user113505

  We are having a server with good CPU and RAM,so we are planning to do XEN virtualization on ubuntu 12.04 server to handle high traffic. The plan is to keep the host machine only to manage VMs(no NAT ing). A New public IP will be assigned to that VM,For that i think we need a Bridge to external network(Since my Machine has only single ethernet card aliased with 4 different Pub IP's) Is it possible to create a bridge using aliased IP single ethernet card aliased to 4 pub IPs Do we need an additional Ethernet card to do Bridging.Only have ssh access to the machine. Any suggestions will be appreciated.

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• ASP.NET Web Server Hardware Configuration

  - by Santa Te Banta

  I'm planning on deploying my ASP.NET Web app in the production environment using a Windows Server 2003 machine. But I know nothing about the CPU brand names and what's best. I know 4 GB RAM, with anything over 3 GHz clock speed will be a good bet and will serve a large number of users. But tell me what's the latest and greatest processor brand-names for running a Windows Server 2003 OS today? And what edition of the Windows 2003 Server do I need out of the following, if I have to run a website to support about 100,000 (a hundred thousand) users, 60% of who are expected to be online at all times? Web Edition Standard Enterprise Datacenter source: http://en.wikipedia.org/wiki/Windows_Server_2003 The article says that the Web edition can only support up to 2 GB of RAM. Will that be sufficient for the above user population?

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• OS choice between: Debian, gNewSense, and OpenSolaris

  - by penyuan

  I am planning to migrate from Mac OS X and Windows to either a Unix or Linux distribution, i.e. I am a Linux/Unix beginner. Right now the following caught my interest: Debian: Well established with huge repository of 20000+ apps. gNewSence: "Totally free" version of Ubuntu, so it should be more beginner friendly? OpenSolaris: Also open-source, and built on "strong" Unix base. I do mainly basic tasks such as web browsing, office work, maintaining big photo collection, and a little bit of programming. Questions: How "free" are each of these distributions compared to each other, is this whole freedom thing a big deal? Will a binary labeled as for Ubuntu work on gNewSense? What are simple IDEs for Debian and gNewSense?

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• How can you replace the src of an image that points to mjpeg?

  - by user165623

  I have an application that displays images from network cameras. The application will show multiple images on a single page. Each image container has a button on it that causes jQuery to scale that image up to fill a 64x480 div vs much smaller when multiple images are present. I change the src in the image with jquery as you'd expect: $("#imageId").attr("src", "http://cameraUrl.com:6000?width=640&height=480&d="+date.getTime()); the date.getTime() is intended to override the caching in a browser. It works for retrieving still images. Sometimes the video changes to the larger resolution. Other times it just sticks with the original image scaled up to fit the larger div as if it is not loading the new URL. This is evident by the fact it's grainy and the text overlay from the camera is scaled up. Occasionally the image finally loads in the higher resolution version and it works evidenced by the image clarity and the text overlay scaling to what it should be. Is there a correct way to force the setting of an image src where the src points to a motion jpeg stream to reload?

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• Suggestions for a nice&small - high battery life programmer notebook

  - by Emir

  Hi guys, I'm planning to buy a new notebook since the Toshiba I have now sucks in battery life. I'm a web designer & programmer, and the main features of the notebook should be: High battery life Small, 13.3" or 14" screen A fast processor and RAM that won't let me down while multi-tasking Anything other than these is secondary, I wouldn't like it to be very pricey though :) I'm now leaning towards Macbook Pro 13.3", 2.66 Ghz; it has 10 hours of battery life. However, I mostly develop on Windows, so I don't know how many hours of battery will I get if I run Windows 7 on Bootcamp. Your ideas and suggestions will be much appreciated.

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• Reinforcement learning toy project

  - by Betamoo

  My toy project to learn & apply Reinforcement Learning is: - An agent tries to reach a goal state "safely" & "quickly".... - But there are projectiles and rockets that are launched upon the agent in the way. - The agent can determine rockets position -with some noise- only if they are "near" - The agent then must learn to avoid crashing into these rockets.. - The agent has -rechargable with time- fuel which is consumed in agent motion - Continuous Actions: Accelerating forward - Turning with angle I need some hints and names of RL algorithms that suit that case.. - I think it is POMDP , but can I model it as MDP and just ignore noise? - In case POMDP, What is the recommended way for evaluating probability? - Which is better to use in this case: Value functions or Policy Iterations? - Can I use NN to model environment dynamics instead of using explicit equations? - If yes, Is there a specific type/model of NN to be recommended? - I think Actions must be discretized, right? I know it will take time and effort to learn such a topic, but I am eager to.. You may answer some of the questions if you can not answer all... Thanks

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• JQuery - Slide Example

  - by gav

  Hi All, I want to perform a simple slide motion on an HTML element. JQuery is already available on the site in question so the next logical step for me was to look at their documentation. JQuery - Slide down When I check out their demo however, it doesn't seem to be functioning. In firebug they have an error; missing ) after argument list wyciwyg://0/http://docs.jquery.com/UI/Effects/Slide Line 18 Whilst the error seems simple, I can't work out how to correct it (On thier site by editing the JS). On my own site using the same example an error is found in the JQuery 1.4.2 script itself; jQuery.easing[specialEasing || defaultEasing] is not a function file:///home/gav/ee-workspaces/web/site/php/jquery-1.4.2.js Line 5854 I don't mean to sound lazy / rude but what's going on? Is the JQuery site and newest release actually broken, I doubt it, what am I doing wrong? I'm a CS grad with no real web dev experience so I'm not used to this method of debugging, where should I start with this? Thanks, Gav

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• single point of failure in IIS Web Farm Framework setting?

  - by aamir sajjad

  ASP.NET WEB API Windows Server 2008 R2/IIS 7.5/Web Farm Framework 2.5 I am planning to deploy application across 4 web servers. Should i use shared content/configuration using DFS among web servers for web farm scenario? Second option is to use Web Farm Framework for deployment. Furthermore, is there chance of single point of failure in WFF? for example what if primary server goes down. which option would be better? pros and cons of each of the above. I appreciate your response.

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• Mysql out of disk space

  - by Paddy

  I have just finished developing a rails app which has a mysql db as a backend. The app is meant for high traffic and will store lots of information. I am planning to set up my own web server and host the site from it. If in future my disk space runs out i would want to expand by adding more space. But say if my mysql database is housed in my /disk0s1 and by adding a new drive i have more partitions (and hence more disk space), how then would i extend my database to store information on those partitions too, and at the same time prevent any information from being written on the original partition. Should i go for multiple databases? if so how? If i went for a hosting solution i wouldn't be bothering about this as i would just have to worry about making payments for the extra space :) I always wondered how space is added on-the-go by these webhosts. Is there any specific mysql configuration that i have to make?

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• Home networking - Wireless switch?

  - by gamers2000

  I currently have a Linksys WRT160N that has a couple wireless clients and a few wired clients. We are planning to switch from DSL to cable and unfortunately, there isn't a cable point in a location close to the wired clients (i.e. the new location of the router would be too far from the wired clients to lay Ethernet cables). Thus, I was wondering if there was a wireless switch of some sort in which it would be a standard Ethernet switch that would connect to my wireless network? (This is a home network,of course.)

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• Backup strategy for Windows Server 2008 R2 and Hyper-V

  - by winserveradmin

  I am in the process of planning a Hyper-V deployment with SCVMM 2008 R2. I have several VMs on VMWare Player (temporary solution) for stuff like Sharepoint 2007, 2010, and a couple of other server apps. I want to develop a resilient backup plan for this. On the software side, Data Protection Manager 2010 will support all of the server apps I run (sQL Server 2008 R2, Sharepoint, Exchange, etc). But on the hardware side (storage), what is the best way to go? Drobo seems to have issues with Hyper-V juding by a few threads on here and doesn't support DPM 2010 (which is in beta anyway) but not even the 2007 version (see http://www.drobo.com/support/best_practices.php). What storage device would work well? Do I need a home server or just an external usb drive? Capacity wise, 2tb will probably be best so I can have a small archive and implement a round-robin system. Thanks

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• Multiple VLANs, multiple subnets, single DHCP server?

  - by EightQuarterBit

  Hey guys! At my job we are prepping to transition from multiple LANs connected over slow VPN connections to a single MAN connected over fiber, and I've got a few questions. First of all, we are planning on making each physical site its own VLAN, but we would like to have a single DHCP server at the data center hand out IPs to each VLAN. We've pretty much got the VLAN tagging structure all worked out, but we would like to have our single DHCP server assign different subnets of IPs to each VLAN. For instance, VLAN 2 gets 10.0.2.x through 10.0.4.x, VLAN 3 gets 10.0.5.x through 10.0.7.x etc. We are an Active Directory based shop and we have a Server 2003 box handling DHCP (though we aren't averse to upgrading it to server 2008.) Is this feasible, or am I pipe-dreaming?

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• Install 64-bit Ubuntu or 32-bit?

  - by nitbuntu

  I'll be receiving a new notebook in a few days and was planning on running Ubuntu on it as it's compatible and the notebook has no OS pre-installed. The specifications are: Core 2 Duo, T6600, 4 GB RAM, Intel integrated graphics. I know a year or two ago, running a 64-bit version of Ubuntu was not advised due to much of the applications and plugins (e.g. Flash) only running on 32-bit. Is this still the case? Would I get better performance with 64-bit Ubuntu since I have 4 GB of RAM? Are there any downsides anymore?

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• SQL Server 2008 Hardware Recommendation;

  - by Jay

  Hi,I work for a large fortune 500 company. We have several SQL 2005 Servers running on DELL Poweredge 2950 with 8 GB RAM and 4 CPU's. Storage is DMX RAID 10. We are in the process of migrating to sql 2008. We are planning on consolidating multiple sql 2005 into single SQL 2008 Server.If anyone can suggest hardware I would appreciate. We have looked at DELL R710, I was wondering if there are other servers that are good for running SQL 2008. Thanks

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• NIC models for HVM guests in Xen 4.0

  - by Jed Daniels

  Is there a list of NIC models that I should use with various HVM guests in Xen 4.0? Is there even a list of possible choices for the model=field? I'm planning on running both Windows and FreeBSD guests on the particular Xen box that I'm configuring now, and ideally I'd like a setting that can work on both of them and get me gigabit speeds without a lot of extra hassle loading special drivers (similar to VMware's e1000 NIC option). Any suggestions? The vif line I'm currently using in my config is: vif = [ 'type=ioemu,bridge=eth0,model=ne2k_pci,script=vif-ovs' ] This works in my Windows XP SP3 VM, but is only recognized as a 10Mbit interface. Changing to model=e1000 or model=i82557b resulted in Windows not being able to find a driver for the NIC.

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• NTP configuration in NEXUS Switch

  - by Pandi Durai

  i'm planning to change the NTP peer to 172.29.100.44,but i'm unable to delete the existing and add new peer NTP peer IP in Nexus switch,Please suggest me in removing the existing configuration. i have use the below commands to remove the peer,But still its not getting deleated from running configuration.Even if i add new peer,its not getting reflecting in running configuration. no ntp peer 172.29.100.10 use-vrf management. ntp peer 172.29.100.44 use-vrf management Existing configuration: ntp distribute. ntp peer 172.29.100.10 use-vrf management. ntp source-interface mgmt0. ntp commit. My another nexus is working fine with the below Configuration: ntp peer 172.29.100.10 use-vrf management. ntp peer 172.29.100.44 use-vrf management. ntp source-interface mgmt0.

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• Throughput tool with decent graphing.

  - by Cory J

  I've been looking through some of the tools available for measuring network throughput, namely iperf, bwping, ttcp, etc. I am planning on doing throughput tests over a long period of time, so what I really need is good graphing output, preferably rrd graphs. The Jperf frontend for iperf will generate a graph, and bmon has a nice command-line graph, but these simply count seconds since the test was started. I am trying to measure trends in throughput over times of the day, so a graph with times and days is necessary. So a way to get iperf to log to RRDs would be best, if this isn't possible could someone point me toward another solution?

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• Linux SW Raid: whole disk or per-partition?

  - by Steve Pomeroy

  I have inherited a machine which has 2 physical disks and uses Linux SW RAID(1). Both disks are partitioned and are are all individual arrays (/dev/md0, /dev/md6, etc.). Those arrays are then mounted (/boot, /home, etc. even /tmp). As RAID is designed to mitigate physical failures, is there any reason why one would use this technique over whole-disk arrays that are then partitioned (perhaps using LVM)? This seems prone to more potential issues, but may have some special properties that I haven't been able to glean. I'm planning on moving this setup to: disks?SWRAID(1)?LVM as I'll be making multiple VMs out of the one machine, but wanted to make sure I knew what I was doing when I got rid of the old setup.

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• How many pHPShield loaders do I need to install

  - by Amit

  An application asks me to install an old pHPshield version but prior to that it asks that I delete all pHPshield loaders in the php extension_dir directory. Am planning to encode some of my own php files with the newer pHPSHIELD version (8+) so I need to also upload newer loaders, but am not sure if it's ok to have multiple pHPSHIELD loaders in the extension dir. Can someone please clarify this confusion? My server runs php 5.2.14 with phpSHIELD Loader Version 5.0.1 and an i386 structure on Centos. The pHPSHILED demo created me a bunch of folders containing the loaders(files that end with .lin extension. I assume the folder Linux_x86-32 is the correct one for my server structure and it contains files like ixed.5.0.1.lin . Can I upload these next to the existing one in the extension_dir directory? Thank you

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