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• Best way to replicate / mirror 100s of databases in SQL 2005

  - by mrwayne

  Hi, I currently host around 400-500 SQL 2005 databases of varying sizes (1-10 gig) each. I am aware of most of the different methods available and the general pros/cons of mirroring, log shipping, replication and clustering, but i am not aware of how well they tend to perform when its employed at the size i have specified (400-500 unique databases). Does anyone have any good advice on what is likely the best method for having the ability to fail over to another server with this sort of setup? Fail over does not need to be immediate, i'm just looking for something better than taking backups every day and moving them to storage. I'm preferably looking for something that would also makes it easy to manage the databases in bulk (as opposed to one at a time). Thanks for your input!

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• How to install gnome desktop from dvd on Centos 6 using command line?

  - by alwbtc

  I have installed Centos 6 to Virtualbox. Although I have chosen to install General Purpose Gnome Desktop, Gnome desktop does not start. All I get is a black and white text prompt. I would like to know how I can install Gnome Desktop from Centos dvd iso image? How do I mount the dvd image to virtual machine linux? How do I install Gnome desktop from command line? If I already have Gnome Desktop installed, why doesn't it start? How can I check from command line that I have Gnome installled? This virtual machine does not have internet connection, that's why I want to install the Gnome Desktop from dvd. Best Regards

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• Socket 1155 vs 2011 vs Haswell

  - by woody

  The title says it all. I am trying to decide between sockets and just cant pinpoint which to get based on pros and cons. The build this will go into will be my primary PC. It will be used for every day computing, coding, some multimedia and gaming. I have read that 1155 and 2011 will be dead within the new year and that Haswell will double the performance of Ivy Bridge. What is a general run down on the different sockets? Pros and Cons? More specifically what are the technical differences between the three?

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• Will being a VPN Client interrupt web pages hosted by IIS?

  - by f1gm3nt3d

  We have a dedicated server that is primarily used to host our website. I've been tasked with determining the feasibility of setting up a VPN connection from it to our Internal Network at our offices for a few ease of use purposes. My concern is that if I establish this VPN connection our Website will only be available internally and not to the internet in general. I'm concerned about this because in everything I read the fact is stated that by default all network traffic is routed over the VPN connection when it's established, is this also true for applications such as IIS that are listening for incoming connections? TL;DR Will having a VPN Client up and running cause a problem with server applications that may be listening on the NIC connected to the Internet due to changes that VPN makes in the routing tables?

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• WinXP Movie Maker Codec Error

  - by Bob Rivers

  Hi, I'm trying to use Windows XP Movie Maker, but when I try to import an AVI video, it shows an error telling me that it wasn't import due to an the fact that the codec wasn't available (I'm able to see the video using the windows media player) First, the error message suggested to enable the option "download codecs automatically" under "tools options general". I did it. But know the error tells me that the codec wasn't available and, if I already installed it, I should reinitialize movie maker. I also already did it... The error msg is: The file D:\movie1.avi cannot be imported because the codec required to play the file is not installed on your computer. If you have already tried to download and install the codec, close and restart Windows Movie Maker, and then try to import the file again. Any hint? TIA, Bob

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• How to get more NFS packet details from Wireshark?

  - by Joe Swanson

  How can I get Wireshark to give me details about NFS packets at this level of granularity? (as exemplified here here) Specifically, I am interesting in looking at the the "Stable" option toward the bottom. When I analyze captured packets (whether by capturing directly via Wireshark, importing from a tshark dump, or importing from a tcpdump dump), I do not see a "Network File System" section in the packet details. I only get general TCP information. It recognizes that a packet is destined for a NFS port, but I am not able to see these details. Any ideas?

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• Server 2008 Hard Faults

  - by claw

  Hey all, plase bear with me as I haven't looked at a server in a very long time. The problem I am having is with a Windows 2008 Standard FE Service Pack 2 Intel Xeon X3430 @ 2.40 2.39 GHZ 4 GB Memory 64 Bit There seems to be no problems other than the physical memory peaking at 91%, always with over 100 Hard Faults Per Second. To my understanding hard faults should be fairly rare on a machine with. Are there any logs I can show you? Or investigate myself. The general performance of the machine is ok, i can access SBS2008 and change settings fairly smoothly without hangs etc. However, we connect to the server and do quite a bit of SQL via an application. For a record to retrieve say 20 rows, it can take 20+ seconds. Thanks in advance, Jamie EDIT: What the server is used for: IIS ASP Web Service SQL 2008 List item Exchange unable to upload screenshots due to low reputation - why doesnt my SO work here :)

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• /lib/udev/net.agent causing high CPU usage

  - by Antoine Benkemoun

  We have a number of Soekris boxes running Debian Squeeze. They were installed through an automated process consisting of using deboostrap and copying it unto a Compact Flash card. We use puppet to manage the configuration of all these boxes. Before Debian Squeeze, they were running Voyage Linux which is just a "lighter" version of Debian. Since we have switched, we're seeing the /lib/udev/net.agent process take up an aweful lot of CPU. We have so far been unable to find any clue as to what this really does and why it's taking up some much CPU time. In htop we see the following : We are seeing absolutly no syslog messages related to this process so we're a bit lost... So, I am looking for pointers as to what this process does in general and what could be the potential cause of such CPU usage.

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• What is a normal value for pages/sec on a Windows Server 2003 Web Server?

  - by Emil Lerch

  I know the answer to this is "it depends", and I know that the counter can and will be thrown off by backup jobs or other things that might use memory mapped files. I'd like to get a bit of clarity over exactly what "it depends" on and some general guidelines around what a healthy web server normally shows for this counter. So if activities regarding memory-mapped files are excluded, if I have ample amounts of memory, should I really see this down close to 0? When should I get suspicious that I might need additional RAM and/or start looking for application memory leaks?

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• Why is business-class storage so expensive?

  - by Mark Henderson

  This is a Canonical Question about the Cost of Enterprise Storage. See also the following question: What's the best way to explain storage issues to developers and other users Regarding general questions like: Why do I have to pay 50 bucks a month per extra gigabyte of storage? Our file server is always running out of space, why doesn't our sysadmin just throw an extra 1TB drive in there? Why is SAN equipment so expensive? The Answers here will attempt to provide a better understanding of how enterprise-level storage works and what influences the price. If you can expand on the Question or provide insight as to the Answer, please post.

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• irc client with good logging/autoconnect/authorize upon connect capabilities

  - by ldigas

  I need an IRC client with good logging / autoconnect upon disconnect / authorize upon succesful connect capabilities. Simply, something that will sit in the background and record some channels so I can quickly reread them later. Windows XP platform. Is there something like that on the market ? I knew of one or two 'in the old days' (of ibm terminals :-), but nowadays, all I see are simple gui clients without even the basic features. I know of mIRC (with which I've had some problems with reconnecting after server drops). Anything better out there ? Just to clarify ... I'm not interested in a general irc client ... for that I have mIRC, with which I'm reasonably happy ... I just need something which is really good at the above mentioned three things.

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• NIC interface names in /proc/interrupts

  - by Gallus

  When I look at /proc/interrupts: $ cat /proc/interrupts CPU0 CPU1 (...) 12: 4 0 IO-APIC-edge i8042 14: 145 65310875 IO-APIC-edge ide0 50: 0 0 IO-APIC-level uhci_hcd:usb5, Intel ICH7 58: 5388 7983508 IO-APIC-level libata 169: 812427252 1236572641 IO-APIC-level skge, eth1 217: 6 0 IO-APIC-level ehci_hcd:usb1, uhci_hcd:usb2 225: 0 0 IO-APIC-level uhci_hcd:usb3 233: 60 3108720778 IO-APIC-level uhci_hcd:usb4, skge I can see two skge and one eth1 entries. All of them are the network cards. Because of the general name "skge" (which is the name of the network driver of the card) I can't easily reocognize, which NIC occupies which interrupt. How to make linux use more descriptive names in the entries? Or: Is there any alternative way to obtain INT information instead of /proc/interrupt? My final goal is to manipulate smp_affinities of the NICs.

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• "Fast link detected" warning in GP management console

  - by ???????? ??????

  There is a message that is shown in every report i make in Group Policy Results section of Group Policy Management Console, saying that "A fast link is detected". I followed the link in the waring, but after I read the page several times, I concluded, that I can ignore the warning. However, I noticed that the group policies are not applied when security filtering is used untl "gpupdate /sync" is executed... Is this related to the fast sync? In general, can somebody explain me the consequences of fast links briefly?

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• Keyboard, Dual Monitor Question

  - by Dmn

  Im about to get a 23inch Monitor to connect to my laptop for programming, and general multimedia besides. (this is the monitor what do you think? LG 23" LCD And would you recommend getting a keyboard to use (ie not using the laptop one?) seems like it would be kinda awkward otherwise. This is the keyboard im looking at because it seems to have the low laptop style keys. ||| tigerdirect .com/applications/SearchTools/item-details.asp?EdpNo=5214790&sku=L23-0054 ||| or would you recommend something different? Thanks

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• In SharePoint, why can I "multiple document upload" a 47,297 byte file, but not a 47,298 byte file?

  - by Jim

  It's strange. I can upload a document named 47k.txt that is 47,297 bytes using the "Multiple Document Upload" feature. However, if I add a single character to the end of the text file, the upload fails. Also, if I rename the file to 47k*x*.txt and try to upload it, it fails. This is the error I get in the SharePoint logs: Category: General Event ID: 8jzm Level: High Message: #90012: An error was encountered while processing files on the server. Try uploading one file at a time by using the single upload page. The same error is reported in a message box on the client side. Does anybody know why this would happen?

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• Ideas for scaling out database architecture

  - by andrew

  We're looking to scale out our existing database architecture and need some advice on which way to go. We currently have 2 web servers behind a load balancer that both read & write to a single master database which replicates to a slave. Ideally, I'd like each of the webservers to point to their own master DB and have the data between the 2 synchronised but from what I've read, using any kind of master-master or ring-replication is discouraged. I'm looking for a general "what do other people do" kind of answer - database vendor isn't a concern at the moment but we'd like to stay with MySQL or convert to MSSQL. Any ideas would be gratefully received. Many thanks, Andrew

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• Windows 2008 RRAS and PPPoE

  - by Massimo

  I'm trying to use Windows Server 2008's Routing and Remote Access Server to share an ADSL connection which uses PPPoE, but I'm having no luck. I can setup the connection as a broadband Internet connection in Windows, and it works. I can share it using Internet Connection sharing, and it works (but it's not what I need). I have installed and enabled the Routing and Remote Access Service and configured it for NAT with a demand-dial interface; I create the aforementioned interface using PPPoE with the exact same parameters used on the Windows connection; I connected it, and it seems to work: I can also see it gets its public IP address and DNS assigned correctly. But it just doesn't work. The server has no Internet connectivity at all, and PINGing anything on the Internet results in a cryptic "general error". Any help?

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• Best Way to Archive Digital Photos and Avoid Duplicate File Names

  - by user31575

  This problem pertains to archiving of digital pictures taken from multiple cameras. Answers here covered the general topic of the-mechanics-of-backups: How do you archive digital photos and videos ? I however face another problem. Having multiple cameras (canon) and multiple SD cards (mixed and matched at random), I have found that different SD cards have different photos with the same file name, i.e. two different photos each name IMG_3141.JPG. Additionally, for better or worse, I've backed up the files to multiple places and need to consolidate my backups. I want to eliminate duplicates, but not clobber files. The only way I can think of is to append the code (md5 or sha1) to the file name, i.e. IMG_3141.JPG becomes IMG_3141_KT229QZ31415926ASDF.JPG, then sorting them out Any better ways? (Note "open letter" address the 'duplicate file name' concern): http://photofocus.com/2010/09/13/an-open-letter-to-digital-camera-manufacturers-regarding-camera-file-naming/ )

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• Remote Desktop or Streaming Software/Services that Supports Gaming

  - by Griffin

  I've simply been amazed by the quality and speed of Onlive, as this technology has the potential of making hardware requirements irrelevant to the average user. However, at the moment Onlive is only for remotely controlling video games, and not desktops or other devices in general. I'm in pursuit of software or services that can accomplish this as well as Onlive does. I need: viewer (client) program portability (able to run on a USB stick) DirectX, OpenGL / full-screen game compatibility on the server side.** Gaming-acceptable color/scaling quality and responsiveness. I have a very powerful desktop at home and I want to be able to access this raw power from any other computer that I stick my USB into (in the same way Onlive gives gamers use of their powerful servers) What software/services has most of the above? NOTE: please specify what features your suggestion doesn't have.

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• No compatible network card

  - by sbintcliffe

  Motherboard: Asus K8N-E Deluxe with onboard NIC (nVidia nForce) Secondary NIC: I've tried using a standard NIC (Device Manager displays this as D-Link DFE-538TX 10/100, but under manufacturer in the General tab of the properties in Windows it states Realtek Semiconductor Corp.) I have downloaded ESXi 4.0.0 build 208167 and cooked to disc. I've booted from it, the .TGZ modules load from the yellow and grey screen, the progress bar reaches to about 60% and like a second later the screen changes and I have the following information on screen; "No compatible network adapter found. Please consult the HCG." I've checked the HCG and found that my motherboard is listed. I also get the same message with the secondary NIC. Any ideas please?

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• IT lead does not have a backup, DR plan in writing

  - by Alex

  This is a general management question to IT managers out there. We are a small firm with about 4 servers in our colo cabinent. No full time IT manager. But we do have one person on monthly contract and I am having a terrible time getting him to share what these plans actually are. I am sure he HAS a plan (and its probably in his head..) but that does us no good if he gets hit by a bus.. How would you guys handle this? He is a long time friend, but I fear this is dangerous for us long term..I have confronted him on several occasions about this, and he tells me not to worry, he has go it covered.. Thanks.

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• ifconfig ignores alias on IPv6

  - by Marten Lehmann

  When I add an IPv4 address for the interface eth0:0 with ifconfig, it is created correctly: ifconfig eth0:0 add 192.168.10.10 This can be verified by ifconfig or "ip a". When I add an IPv6 address however, ifconfig seems to ignore the alias of the interface: ifconfig eth0:0 add fc00::2/48 The address fc00::2/48 is added to eth0 then, not to eth0:0, no matter if eth0:0 previously exists with an IPv4 address or not. I'm doing this on CentOS 5 but I guess it is a general behaviour of ifconfig? Am I doing something wrong or is this by intention? I'm using separate aliases for interfaces very often and I hoped to use it for IPv6 as well. Kind regards Marten

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• DNS Server Spoofed Request Amplification DDoS - Prevention

  - by Shackrock

  I've been conducting security scans, and a new one popped up for me: DNS Server Spoofed Request Amplification DDoS The remote DNS server answers to any request. It is possible to query the name servers (NS) of the root zone ('.') and get an answer which is bigger than the original request. By spoofing the source IP address, a remote attacker can leverage this 'amplification' to launch a denial of service attack against a third-party host using the remote DNS server. General Solution: Restrict access to your DNS server from public network or reconfigure it to reject such queries. I'm hosting my own DNS for my website. I'm not sure what the solution is here... I'm really looking for some concrete detailed steps to patch this, but haven't found any yet. Any ideas? CentOS5 with WHM and CPanel. Also see: http://securitytnt.com/dns-amplification-attack/

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• How can I regain control over a "stuck" scrollbar?

  - by jonsca

  I fear that this is one of those "for your own good" features, but I'm wondering whether or not there is a setting in Firefox or Chrome (or perhaps Windows in general) that will allow me to recapture the scroll bar even though the browser may be busy. I run into this a lot, especially when I have a lot of tabs open in either browser, and so perhaps it's just a fact of life. I wouldn't mind being able to scroll along gradually, even if the page hasn't had time to fully render all of the images, etc., yet. Does such an advanced setting exist "under the hood"?

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• apache not displaying php pages, offering them for download instead.

  - by Peter NUnn

  Hi folks, we are trying to setup apache (apache 2 in this case, although apache does the same thing) and html pages display just fine, however, any php pages linked into buttons on the front page are offered for download rather than being displayed. Any ideas what we have missed? Its proving difficult to search on this in google as the terms are so heavily used elsewhere. I know this is a bit general, but we have tried adding types to the to the apache.conf (or httpd.conf for apache1) are having no joy at all. Thanks. Peter.

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