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  • Generating wildcard SSL certificate

    - by Xiè Jìléi
    I can make a single SSL certificate for several different domain names: www1.example.com www2.example.com www3.example.com But *.example.com doesn't work. How can I make a single SSL certificate for all sub domains within .example.com? P.S. Here is the extension part of the generated certificate: X509v3 extensions: X509v3 Basic Constraints: CA:FALSE X509v3 Key Usage: Digital Signature, Non Repudiation, Key Encipherment X509v3 Subject Alternative Name: DNS:*.example.com It's simply not matched by any sub-domain under example.com by the browser.

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  • Installing ubuntu on inspiron 1720, can I dual boot?

    - by sososo
    Can I dual boot ubuntu with on a inspiron 1720 (it is running windows 7). One issue is I don't have space on the c:\ drive, but other partitions have space. Will that cause any issues? This is just to play and learn with, and I don't want to ruin my main windows install doing this. I don't think my laptop is powerful enough for a virtualbox install (only 2gb ram).

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  • Will this netbook allow me to run mutiple programs without issues?

    - by erik
    I'd like to use a netbook to run mIRC skype Messenger pretty much all at the same time. It this netbook a good choice? http://www.notebookzone.co.za/default/sony-vpc-w216.html Quick Overview Intel Atom N450 (1.66GHz), 2GB Ram /320GB HDD, 10.1" LCD-WXGA:1366 x 768, LED, Windows 7 Starter 32bit, Only 1.19Kg, Web Cam, Wireless, BT The combination of high-resolution wide 10.1" screen and Isolation Keyboard helps to put the Internet at your fingertips anytime you want it. Available in : white / pink / blue / brown

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  • USB mouse shuts down the laptop!

    - by Ryan
    For the past two days, whenever I plug in my USB mouse (which has been working for a long time, previously) into the laptop, my computer restarts! I tried changing mice, but the same thing happens. I have 3 ports, usually, I try one port and the laser does not come on, then I try another one and the laser comes and and off, then I again take out and put it in any port and the damn thing just turns off the computer. Specs: Windows 7 Ultimate 64-bit, 4GB RAM, Fujitsu 532ah i5 laptop

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  • what virtual machine should dell poweredg sc 1425 install?

    - by Nguyen Khanh Huy
    I'm intalling our local server and want to install a virtual machine but it seem vmware ESXi is not suit with our server Server: Dell SC 1424 CPU : 2 Xeon 3.2G (buss 800, cache L2 2M) Ram: 6G DDR ECC 266 Hard disk: 2 Hitachi Sata 1TB. Raid Dell Cerc 2s ( raid 0, 1) Nic: 2 Broadcom 1Gb/s I'm wondering if you're familiar with this area and have any idea about a VM software for our server. Just wanted to use server for some purposes ( web hosting, subversion and to experience some server OSs) Thank you for helping.

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  • VMWare Pre-Allocated vs. Growable, which is faster?

    - by tekiegreg
    In an effort to increase speed in my Vmware setup, I was thinking about converting a Windows XP Guest 32 bit I have from growable to pre-allocated, I'm currently running VMWare Workstation 7 with Windows 7 64 bit as the host. Specs: Dual Core CPU, one allocated to guest 4GB of RAM, 2GB to guest HD max capacity is 500GB, 150GB allocated to guest (I have 300GB left and don't mind parting with the space, currently HD is 80GB and converting would obviously add another 70GB of space), HD that guest is running on is separate from Host OS Either that or any other suggestions you have might be appreciated, thanks!

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  • What are the most likely bottlenecks determining the performance of CamStudio screen recording?

    - by Steve314
    When doing screen recording, I can get a frame rate of maybe 15 frames per second for the full screen on my 1080p monitor using the XVID codec. I can increase the speed a bit by recording a region, changing screen modes, and tweaking other settings, but I'm curious what hardware upgrades might give me the biggest bang for my buck. My PC is budget, but modern... Athlon 2 X4 645 (3.1GHz, quad core, limited cache) processor. 4GB single channel DDR3 1066 RAM. ASRock motherboard with NVidia GeForce 7025/nForce 630a Chipset. ATI Radeon HD 5450 graphics card - 512MB on board, not configured to steal system RAM. I dual-boot Windows XP and Windows 7. For the moment, XP is my bigger performance concern as it's still my getting-things-done O/S as opposed to my browser-host O/S. My goal is to make a few programming-related tutorials. For a lot of that I don't need screen recording - I can make up some slides, record audio with the PC switched off, yada yada. When I do need screen recording, I'll mostly be recording Notepad++, Visual Studio or a command prompt. Occasionally, I may be recording some kind of graphics or diagram program and using my pre-Bamboo cheap Wacom tablet - I have the CS2 versions of Photoshop and Illustrator, but I'd much more likely be using Microsoft Paint. Basically, what I'll be recording won't be making huge demands on the machine - but recording a fair number of pixels (720p preferred) will be useful. What's particularly wierd - not so long ago I still had a five-year-old Pentium 4 based PC. And (with the same 1080p monitor) it could record at not far from the same frame rate. So clearly the performance issues are more subtle than just throw-money-at-it. My first guess would be that the main bottleneck is the bandwidth for transferring data to/from the graphics card. Is that likely to be correct? In support of that, see this [Radeon HD 5450 review][1] - the memory bandwidth is only 12.8 GB/s. If you can't get data out of graphics memory quickly, you can't transfer it back to the system memory quickly. Apparently, that's slower than some top-end cards in 2002.

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  • Not able to connect to game using "Game Ranger"

    - by Daud
    Every time the game is about to start it says that I have lost my connection to EA's servers with the following message: Make sure your network adapter and network cable is plugged in. Although my connection works perfectly but when it comes to online gaming it messes up everything. My System specifications: Intel(R) Core(TM) i5-2410M CPU @ 2.30GHz 4096MB RAM Windows 7 Ultimate 64-bit Internet connection of 2Mbps Can you help me to sort it out?

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  • Is U.P.S necessary to have for PC?

    - by Jitendra vyas
    otherwise can my PC component ( Monitor, Motherboard, RAM, HDD, CPU, SMPS) get damage dues to suddenly power gone and come and due to power fluctuation. or it's only needed to shut down windows Properly. Can i face both Hardware and Software problems without UPS?

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  • How to get the MongoDB' current working set size

    - by Howard
    From the doc , it said "For best performance, the majority of your active set should fit in RAM." So for example, my db.stats() give me { "db" : "mydb", "collections" : 16, "objects" : 21452, "avgObjSize" : 768.0516501957859, "dataSize" : 16476244, "storageSize" : 25385984, "numExtents" : 43, "indexes" : 70, "indexSize" : 15450112, "fileSize" : 469762048, "ok" : 1 } Which value is the working set size?

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  • How to monitor an Amazon EC2 instance

    - by sektor
    Is there a way to monitor ec2 instances without using cloudwatch? I ask this since ec2 instances are basically VPS's, and using output from commands like top, vmstat, htop in scripts may not give the clear picture as the CPU cycles are shared between other instances as well. What should one keep in mind while monitoring CPU usage on a VPS?, should one have alerts based on top load or % of CPU used by user processes coupled with other factors like processes waiting on disk io, hardware interrupts?

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  • Where is the used memory in Task Manager & Resource Monitor coming from?

    - by Sam Adams
    On a Windows 7, the working set memory usage plus private memory does not add up to the total used memory in Task Manager and Windows 7 Resource Monitor. How do you find out where the used memory is coming from? The cached memory can't be part of it because sometimes the total cache is greater than the total in use. The commit memory plus the working set also doesn't add up to the total in use - but even that shouldn't be significant if it did, since commit is virtual.

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  • Screen Flicker in Vista

    - by mario64
    I noticed everytime my dell inspiron 1420 wakes up from sleep the screen will flicker a lot. some times violently. I'm not sure what the problem is. I have disabled tmm but it didn't fix the flickers. Does anyone have a solution? Here's my spec: Dell Inspiron 1420 4GB RAM Intel Core 2 Duo T5750 Nvidia Geforce 8400MS Windows Vista 32bit

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  • PES 2012 results in a Nvidia error on Dell N5110 regarding System Requirements?

    - by ???? ???????
    I bought laptop Dell N5110 and installed PES 2012. Nvidia graphics card has 1GB RAM, but when I try to run game message appears that there is just 128MB graphics memory. Here is the message: Warning :Your computer does not meet the Minimum System Requirements to run this software.As a result, you may experience errors during operation.Your Video Card does not meet the required specifications.(GPU:VRAM 128MB) What could be the problem?

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  • how to optimize apache on web-server

    - by Prakash
    how can I optimize the server with following configuration. It takes too much time to load a page. IBM X3200 M3 Server - 1 Intel Xeon Processor with 4 GB Ram Below is my current configuration for apache: Start Servers: 5 (Default) Minimum Spare Servers: 10 Maximum Spare Servers: 20 Server Limit: 500 Max Clients: 500 Max Requests Per Child: 10000 (Default) Keep-Alive: On Keep-Alive Timeout: 5 Max Keep-Alive Requests: 100 Timeout: 200

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  • SQL Server Full Text Search resource consumption

    - by Sam Saffron
    When SQL Server builds a fulltext index computer resources are consumed (IO/Memory/CPU) Similarly when you perform full text searches, resources are consumed. How can I get a gauge over a 24 hour period of the exact amount of CPU and IO(reads/writes) that fulltext is responsible for, in relation to global SQL Server resource usage. Are there any perfmon counters, DMVs or profiler traces I can use to help answer this question?

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  • CPU running at full capacity when boot to DOS?

    - by Kevin H
    Does the CPU is run at 100% or near full capacity when the computer is booted into MS-DOS? Will the CPU temperature become higher even though we are not running any program in DOS mode? In Windows, we can see the CPU usage in % of utilization in Task Manager. From what I heard, CPU is running at near 100% capacity in DOS OS or in the BIOS MAIN screen. Is this caused by lack of CPU optimization in DOS OS?

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  • Linux Best Practices

    - by Zac
    I'm a life-long Windows developer switching over to Linux for the first time, and I'm starting off with Ubuntu to ease the learning curve. My new laptop will primarily be a development machine: 6GB RAM, 320 GB HD. I'd like there to be 2 non-root users: (a) Development, which will always be me, and (b) Guest, for anyone else. I assume the root user is added by default, like System Administrator in Windows. (1) I'd like to mount /home to its own partition, but how does this work if I have two user accounts (Development and Guest)? Are there 2 separate /home directories, or do they get shared? Is it possible to allocate more space for Development and only a tiny bit of space for Guest in GRUB2? How?!?! (2) I'm assuming that its okay that all of my development tools (Eclipse & plugins, SVN, JUnit, ant, etc.) and Java will end up getting installed in non-/home directories such as /usr and /opt, but that my Eclipse/SVN workspace will live under my /home directory on a separate partition... any problems, issues, concerns with that? (3) As far as partitioning schemes, nothing too complicated, but not plain Jane either: Boot Partition, 512 MB, in case I want to install other OSes Ubuntu & non-/home file system, 187.5 GB Swap Partition, 12 GB = RAM x 2 /home Partition, 120 GB I don't have any bulky media data (I don't have music or video libraries, this is a lean and mean dev machine) so having 320 GB is like winning the lottery and not knowing what to do with all this space. I figured I'd give a little extra space to the OS/FS partition since I'll be running JEE containers locally and doing a lot of file IO, logging and other memory-instensive operations. Any issues, problems, concerns, suggestions? (4) I was thinking about using ext4; seems to have good filestamping without any space ceiling for me to hit. Any other suggestions for a dev machine? (5) I read somewhere that you need to be careful when you install software as the root user, but I can't remember why. What general caveats do I need to be aware of when doing things (installing packages, making system configurations, etc.) as root vs "Development" user? Thanks!

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  • Improve file transfer speed between Windows PCs and servers

    - by Geotarget
    I've setup a server which I've connected to multiple PCs in my workplace. Sadly, data transfer speeds are at max 3 MB/sec per connection which works out slow for file transfers, especially when transferring large files. I'm using Windows filesharing and the server is a Windows Server 2008 (2 Ghz CPU, 1 GB RAM) and the client PCs mostly running Windows 7. How can I detect bottlenecks in my network and improve file sharing speed within the network?

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  • How to monitor streaming servers

    - by pcdinh
    Hi all, I have had a bunch of Linux based streaming servers that employed lighttpd web server to provide video streaming via port 80. Recently, our service is very slow. Therefore, I would like to ask if there is a good software package that helps us monitor and record our bandwidth usage, lighttpd established connections, TCP sync connections, disk I/O ... over time. Any suggestions? Regards, Dinh

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