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• Load Balancing a UDP server

  - by Hellfrost

  Hello StackOverflow, I have a udp server, it is a central part in my business process. in order to handle the loads I'm expecting in the production environment I'll probably need 2 or 3 instances of the server. The server is almost entirely stateless, it mostly collects data, and the layer above it knows how to handle the minimal amount of stale data that can arise from the the multiple server instances. My question is, how can I implement load balancing between the servers? I would prefer to distribute the requests as evenly as possible between the servers. I would also would like to have some fidelity, I mean if client X was routed to server y, then I want all of X's subsequent requests to go to server Y, as long as it is sensible and not overloads Y. By the way it is a .NET system... what would you recommend?

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• Problem with creating table on phpMyAdmin database

  - by tombull89

  Hello all, I'm running a phpMyAdmin Database on my web package on a 1and1-hosted server. I've managed to set up a database in the control panel, have uploaded all to root/phpmyadmin and changed the config.ini.php file to point at 1and1's database server (because that's the way they do it). I can go to the web interface and get to the main page, but all it shows is the database name and I can't find how to create any tables. I know it's a long shot but I'm almost out of ideas. Also, 1and1 have their own phpmyadmin panel, which is pretty annoying to use, and a 1and1 webdatabase which I have barely looked at. Help and suggestions much appriciated.

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• Will wear induced by turning computers off in the evening be offset by energy savings?

  - by sharptooth

  I'm asking this here because this is primarily a huge office scenario and administrators will more likely have the answer I'm looking for. Employees' desktop computers can be either left turned on for the whole night or switched off in the evening and turned back on in the morning. The latter will surely save energy. In the same time turning on and off is very harmful for the equipment - hardware often breaks specifically when turned on. Both energy and hardware replacements cost money. With energy it's quite obvious - you pay every month according to what your power meter shows. With hardware replacements it's worse - you need qualified stuff to quickly diagnose the problems and once something breaks the affected employee will have to wait for some time while his computer is fixed/replaced and the data is recovered. So the company has to choose between saving money on energy and saving money on computer maintaince and lost hours. Such decisions must be well though. Is there any detailed study of how turning computers off each evening affects their lifetime?

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• How to manage multiple email addresses on multiple domains in Exchange

  - by CAD bloke

  Using Hosted Exchange Server, mostly because I use an iPhone, webmail & Outlook on 2 laptops. I want to keep everything consistent and unfragmented. Also, I want push notifications. I have 2 domains, a professional one & a personal one. Each domain has about 5 (give or take) email addresses I use for various purposes. Each domain also has a few parked domains (.net, .org, .info) aliased to the .com domain. I would like to keep emails from the 2 domains separated. Do I need an extra mail box, meaning extra expense or can I create another Exchange user on the same mailbox and create an extra account in Outlook? In either case I will have to wait for iOS4 on the iPhone to manage 2 Exchange accounts. Or am I better off just using a set of rules and folders? The aliased domains are another joy to behold entirely. It looks like I will have to add each email address variant individually. Alternatively, I reckon I may just leave the aliased domains at the pop3 host and let Outlook gather those as edge-cases. Surely I can't be the only one making my life this difficult. Anyone out there done this? From the left field - is this (much) easier in gMail? I'm not committed to Exchange (yet). Previously I used Outlook as a pop3 client with a set of filters to direct incoming traffic to folders. This worked with the aliased domains because my host directed all the aliased TLDs to the same mailbox.

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• Delay before booting with laptop

  - by Priednis

  I have almost the same problem as in Delay before booting? My computer is a practically new (couple months) Lenovo X200 Tablet (System Model 7449FXG). So when I press the power button, the indicator light that means "computer is on" turns on, but nothing else happens for about 5 mins, after that the computer starts booting normally. The same happens also on restart. And no USB or any other device for that matter is plugged in to the computer. And at the delay time the monitor is blank - actually not on at all.

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• Windows 7 Line In Delay Issue

  - by CheeseConQueso

  Not sure if this question should be posted on a different stack exchange site, so if you find that it should not be posted here, please move it. Either way, if you know the solution, please advise. I'm running Windows 7 Pro 32-bit on my Dell Latitude 2100 netbook and I'm having an issue with the line in device/driver/functionality. The device & driver are stock: Driver Date: 7/13/2009 Driver Version: 6.1.7600.16385 I'm almost sure that the manufacturer of the sound card is RealTek. The problem is that there is a delay (when monitoring input) between the source and the speakers. My setup is bass guitar running through a 12' long instrument cable (1/4") with a 1/4" female to 1/8" male adapter into the line in port on the computer. Then the 15' long headphones/line out cable goes into a standard set of powered speakers. How do I get rid of this delay? Thanks for any help.

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• How to set the IP address in a customized OpenWRT compilation

  - by Berdus

  I have been struggling today customizing OpenWRT. I checkout the stable using SVN, "make menuconfig" to customize the image, "make" it and run it on a router. Almost all my modifications work, except for the (Seemingly trivial) task of changing the default 192.168.1.1 address. I tried numerous files (scripts as well as config files) but I can't seem to change it (I can change it for a brief moment after boot using the "preinit" file, but after a few seconds it reverts to default). I suspect I should be setting it in the /etc/network file, but modifications there seem to be overwritten during boot. Maybe it has something to do with the br-lan interface? Does anybody have some thoughts on the subject? Thanks!

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• Why is the network speed on my Mac Pro (early 2009) so slow?

  - by Rafael

  I have a really weird networking issue on my Mac Pro (Early 2009). I can’t get higher network speeds than about 2MBit/s. It doesn’t matter if this is over AirPort or one of the Ethernet ports. An iMac and a Mac mini in the same network with almost the same configuration get about 25-30 MBit/s. I’ve read a couple of things about this on the official Apple forums, but there is no helpful information. Anyone else with Mac Pro network speed issues and who knows how to solve them?

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• How can I improve performance over SMB/CIFS for an application that has poor write speeds?

  - by Jeremy

  I have a third party application that reads several large files and generates a third large file. Its performance is quite good when the generated file is stored on "local storage", i.e. either a direct attached or iSCSI-based disk. The source files that are read can be stored remotely on our NAS and accessed via SMB with little effect on performance. However, if we attempt to write the target file to any kind of SMB/CIFS share (Samba or Windows Server) the performance drops almost ten-fold. This is unacceptably slow in our case. Writing files to network shares is not otherwise slow. I can copy large files to SMB shares and get great performance - near what I would expect is possible given the disks and network in question. I have a theory that this application's problem with SMB shares has something to do with a lack of write caching over the share and perhaps lots of network roundtrips. Is this possible and is there anything that can be done about it?

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• Is there a way to run virt-manager on Windows?

  - by slm

  We've been using KVM for almost a year strictly on CentOS 5.x as the KVM host, with Fedora and Ubuntu workstations accessing the KVM host and its guests using virt-manager, virt-viewer, and ssh. Is anyone aware of a way to access the KVM host using virt-manager from a Windows workstation? We have one co-worker who would like to access the KVM host, from a Win7 system. EDIT #1 I'm familiar with running a X11 server on windows such as Xming, and remote displaying virt-manager from the KVM host to a windows workstation, but what I'd really like here is to know of any solutions native to windows, i.e. is there a version of virt-manager that'll run on windows.

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• Is the Zune HD's audio card better or worse than the iPod touch's?

  - by MatthewThepc

  Firstly, if this is the wrong site to ask this question I apologize, but I didn't see one for "music players" on the stack exchange website :) After reading a few people online say that music playing from a Zune HD sounds better to them than that on an iPod touch, I was wondering whether there's any truth to that? From what I can tell, the Zune HD uses a Wolfson Microelectronics WM8352, while the first-generation iPod Touch (which the Zune HD was competing with) used a Wolfson Microelectronics WM8758BG, and newer models use the Cirrus Logic CS4398 and CS42L61. Which ones are better (to make the question less subjective, let's say in terms of quality, range, & accuracy of output)? Admittedly, I have almost no idea how everything compares and works together, but it would seem to me that, just by looking at the version numbers, the iPod has been better since it's launch. Is there anything else that effects sound quality? Thanks!

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• Can I use an nVidia Geforce 9600GT for triple-monitor?

  - by John Rudy

  My work PC has (as you can guess from the title) a single Geforce 9600GT card. According to the spec page for this card, both DVI ports are Dual-Link DVI. Both are currently in use on Dell 19" 1280x1024 screens. I'm running Windows 7, with Aero enabled, for what that's worth. What I'm wondering is if I can use a standard DVI splitter cable to drive a third screen from one of the ports -- specifically a Samsung 22" 1680x1050. I'm really outgrowing the two-screen setup, and am strongly considering bringing in my home monitor (which is almost never used) to bolster my usable space. If I can't, then my alternative is to replace one of these Dells with that Samsung, to give me at least a "little" more space. (Before you ask, there's probably no chance I can get my company to spring for a second video card and third monitor. Even if I could, it would not be politically expedient, as a number of my other coworkers are already pretty jealous at my setup.)

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• What happens to a Windows Dynamic Drive

  - by GruffTech

  In my windows (Windows 7) I have two primary logical volumns, One is on a SSD harddrive for my operating system and installed software, and my other is a Dynamic volume for my stored media. (I do alot of work with HD footage) I have all my media on the original DV tapes for backup purposes, just having them all available on my harddrive at all times is a major convience for me, well worth the few hundred dollar investment those 2TB drives were. Anyway, Long story short is my windows install has become problematic and I want to reformat windows. Does this, or will this effect my dynamic drive in any way? I've got almost 3 TB of video on there and i really dont want to re-import all my DV tapes.

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• How does Windows 7 taskbar "color hot-tracking" feature calculate the colour to use?

  - by theyetiman

  This has intrigued me for quite some time. Does anyone know the algorithm Windows 7 Aero uses to determine the colour to use as the hot-tracking hover highlight on taskbar buttons for currently-running apps? It is definitely based on the icon of the app, but I can't see a specific pattern of where it's getting the colour value from. It doesn't seem to be any of the following: An average colour value from the entire icon, otherwise you would get brown all the time with multi-coloured icons like Chrome. The colour used the most in the image, otherwise you'd get yellow for the SQL Server Management Studio icon (6th from left). Also, the Chrome icon used red, green and yellow in equal measure. A colour located at certain pixel coordinates within the icon, because Chrome is red -indicating the top of the icon - and Notepad++ (2nd from right) is green - indicating the bottom of the icon. I asked this question on ux.stackoverflow.com and it got closed as off-topic, but someone answered with the following: As described by Raymond Chen in this MSDN blog article: Some people ask how it's done. It's really nothing special. The code just looks for the predominant color in the icon. (And, since visual designers are sticklers for this sort of thing, black, white, and shades of gray are not considered "colors" for the purpose of this calculation.) However I wasn't really satisfied with that answer because it doesn't explain how the "predominant" colour is calculated. Surely on the SQL Management Studio icon, the predominant colour, to my eyes at least, is yellow. Yet the highlight is green. I want to know, specifically, what the algorithm is.

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• Download databasename.bak file

  - by Jordon

  I have downloaded databasename.bak file from my hosting company, when i tried to restore that DB file in SQL server 2008 it is keep on giving me following error. The media family on device 'C:\go4sharepoint_1384_8481.bak' is incorrectly formed. SQL Server cannot process this media family. RESTORE HEADERONLY is terminating abnormally. (Microsoft SQL Server, Error: 3241) According to this error and from following link http://www.sqlcoffee.com/Troubleshooting047.htm It is clear that either file i am downloading is corrupt or it is getting corrupted on the way? Any idea, why I am keep on receiving this error? I tried almost all ways but unable to fix this problem, please help me.

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• Can't access files on external drive after reformatting Macbook Pro

  - by Peter Wells

  I recently had to reformat my Macbook Pro, and imported my account and settings from Time Machine via the Migration Assistant. Everything on the Mac itself is fine, but now I don't have permission to access almost everything on my external drive. A number of folders have the little red 'no access' sign on them and I can't rename or move anything. Looking at the info for these files, it appears that access rights were attached only to my old user account. Is there some way to reassign these files and folders to my new user account? Thanks.

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• Missing disk space in Windows XP

  - by Jørn Schou-Rode

  On my mother's Lenovo laptop, Windows XP claims that the hard drive is almost full. According to the properties window, 52.7 out of 55.2 GB is in use: By deleting temp files from Internet Explorer, System Restore, Recycle bin, Windows Update, System Cleanup, I managed to free up about one GB. That's still 50 GB in use, which still is a lot more than I expected. Hence, I gave good old WinDirStat a spin, and here's the output: It might be hard to read here, but the first line says that the total amount of disk space in use on drive C is 24.3 GB. So Windows claims usage of 52.7 GB and WinDirStat can only account for 24.3 GB. Where is the other half of that disk space being used? I hope someone has an answer, or some tricks or tips to do further research. UPDATE: The laptop in question has an SSD hard drive. I am aware that these disk (at least the earlier ones) have a limited life-time. Could the symptoms described be caused by wear and tear on the SSD?

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• Reliable 1tb or larger hard drive?

  - by jasondavis

  I am in the market for 2-3 new drives, I would like each to be at least 1tb to 2tb in size. I have been reading all the reviews on newegg.com for 1tb and larger drives and they all have 1 thing in common. Almost all the ones I read about have complaints of them being DOA or dieing within a few weeks of use. I am hoping to find some drives with this storage range that have a reputation for lasting a long time instead of a short life. Please help me if you have any experience with these sort of drives? Most the ones I read about were Western Digital brand. I realize some might complain that this questions answer would be based upon a timeframe, so if a user searches and find this answer a year from now it will be outdated but I would appreciate any help based on the current hard drives available as of April 10th, 2010 on newegg.com

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• Difficulty racking HP ProLiant Gen8 servers

  - by Systemspoet

  We're an all Proliant shop with around 50 servers, mostly DL360s and DL380, from G5's through G7's. We just got our first two G8's in and went to rack them. We were stunned to find out that the new cable management arms protrude almost 1 inch deeper into the rack then previous iterations of the Proliant line. Unfortunately that causes them to occupy the same space as the PDU's in our APC racks. In a non-densely populated section of rack that's no biggie, but in a densely populated section it's impossible to get the cable arm into place without dislodging another machine's power. Has anyone else run into this? Obviously racking machines without cable management arms is not an option. I supposed we could reconfigure our racks but that's a nightmare.

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• Looking for something like Google's Picasa [closed]

  - by Skizz

  I almost like Picasa, but there are two issues that irk me and I wondered if anyone knew of an application that does what Picasa does but without the following problems: Network drives. Picasa is hopeless with network drives. Ideally, I'd like photos to be stored remotely and thumbnail databases to be stored locally with a client-server set-up to update client databases. The main aim is to get updates propagated to clients efficently, reduce network bandwidth and have quick browsing on the client. It needs to be snappy when used over a wireless network. This is just a minor point but the folder view looks awful, especially when it uses those tiny thumbnails. (Also, what is it with folders being drawn vertically. Having spent years looking at folders orientated horizontally, turning them on their side looks so wrong.)

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• Is there a way to snip part of the screen with a hotkey?

  - by Head of Catering

  I'm able to launch the snipping tool, select an option and then copy based on my selection. Is there a way to launch a default snipping option so that I can create partial screen screenshots without using a third-party tool? Essentially, I'm looking for winkey+S without having to use OneNote. Both OneNote and SnagIt implement this perfectly. If OneNote is running, pressing winkey+S allows me to click and drag any portion of the screen, including pop-out menus with selections that are active. SnagIt does almost the exact same thing, invoked by the prt screen key.

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• Fixing/Extending Standard Windows File Open/Save Dialog [closed]

  - by scunliffe

  Possible Duplicate: Change left side link of the Save As Dialog for a DropBox one? Almost every time I use the standard Windows (XP) File Open/Save Dialog I get frustrated in how long it takes me to navigate to where I want to go. :-( (I won't even get into the MS Office dialog that makes things even worse) This is the dialog I'm referring to (with some notes) Notes: Wouldn't a Drive list be handy in here? C:\, D:\, E:\, etc. What about a breadcrumb URI? (the magenta list of links) Why isn't Program Files one of the icons on the left? (green) I'm always going in there for something Why can't I type "../../../" to navigate up multiple directories in the File name box? (blue) There has got to be some utilities out there that can "hijack" or "overwrite" this core windows dialog to provide a much better set of options. I'm looking for any/all solutions to help fix this dialog.

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• SEAGATE Barracuda 7200.11 HDD not running

  - by Dane411

  After a huge research, I'm stuck at the beggining of getting my HDD data back. Whats happening to me is that in the moment when I plug the power wire to my external 1TB SEAGATE Barracuda 7200.11 ST31000333AS HDD Fw LC15, it makes the sound like it's spinning to almost full speed and then shuts down and spins up again, and so on. It's well known that those HDDs have a bad firmware that someday randomly fails. There are like 2 main problems identified, BSY (busy) state, and LBA0 error. Last time I connected it to power nothing happened, it didnt try to start at all, is it that so called bricked state? I guess my HDDs error is the first one, but I dont really know if what I described is that BSY state or not, neither I know how to check it. How could I know it? Thank you so much!

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• How do I make a Windows virtual machine replicate to another datacenter/cloud?

  - by zippy

  We have a Windows 2008 VM running IIS and SQL Server Express (it's an all-in-one web application). We need to have another copy at our secondary datacenter site. What is the best way to do this? It doesn't have to be running all the time but it has to have almost the latest copy of the current VM. I took a look at VMWare Fault Tolerance and after the heart attack at the price I starting looking for another solution. If need be I wouldn't mind copying it over to a cloud VM provider, if I can find one that lets me copy my own VMs up and start them up without any conversion process.

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• FreeBSD's VPN & Mac OS X IPSecuritas

  - by alexus

  I need to be able to VPN in to my FreeBSD server from my Mac using IPSecuritas. I was wondering if anyone ever done something, I'm reading VPN over IPsec but that mainly covers if you had 2 nodes with 2 public IP address. My endpoint in IPSecuritas configured with MODE_CFG enabled so it'll have the other node to query my address from it's coming from. SSH is out of question, this is not a VPN solution, people who'd end up using VPN wouldn't know what to do, so I need very simple VPN the one that you get to use almost anywhere, you have a client and you have server, client makes a connection to server and boom, you in...

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