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• Should I reinstall my production server from 32 bit to 64 bit if it has 16GB of RAM?

  - by Alexandru Trandafir Catalin

  I have a production server with 16GB of RAM that came with a 32bit CentOs installation. The website hosted on this server is increasing its traffic every day and I am having some MySQL trouble so I tried to check the MySQL configuration with mysqltuner.pl and gave me the following messages: [!!] Switch to 64-bit OS - MySQL cannot currently use all of your RAM *** MySQL's maximum memory usage is dangerously high *** *** Add RAM before increasing MySQL buffer variables *** So my question is: can I survive with the 32 bit? Or I will have to install the 64 bit OS? Thanks.

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• How Do I Change the Windows7 LAN Proxy Config from the Command Line

  - by david.barkhuizen

  In Windows7, Is it possible to define/change the proxy config from the command line ? So, using the gui, I would go: Start Control Panel Network and Internet Internet Options Connections LAN Settings and then - enable/disable the proxy - define IP:port of proxy server But I would like to rather do this from the command line (so that I can run the command from a batch-file with a shortcut key - enabling me to switch proxy configs using a short-cut, rather than having to wade through the MS wizard). I've looked at using netsh.exe to change the settings for WinHTTP, but this seems to be thr wrong thing to do, as the WinHTTP setting do not appear to be related to the LAN settings. Much appreciated folks.

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• Click sound from computer when shut down

  - by user32569

  Hi, I build my new computer yesterday and I noticed, when computer is shut down, I mean the exact time its looses power from PSU, relativelly loud CLICK sound occurs. Please does anyone knows from where? I think MB, SSD, VGA, CPU nor coolers are not cousing this. I would guess maybe Samsung 1TB HDD (maybe when heads go back to LZ) or some hard safety switch or relay in PSU? Or just the MB speaker? (Yes, its actually installed). Do you have any experience with this? Thanks.

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• Windows 7 won't restart with SSD

  - by JL

  I have this annoying problem that I just can't seem to fix. Recently I upgraded my main boot drive to an OCZ Vertex Turbo (60GB) which is an SSD. I've installed Windows 7 64bit. The drive works, and is really quick... blah blah blah. My problem is when I do a restart, for example click start, then arrow next to shutdown, and restart. The computer will shut down, and do a warm reboot, but it gets stuck where it says loading Windows. Just before the animation starts. So what I have to do is physically press the reset switch on the computer, then it restarts, firing up a menu which offers to launch Windows Startup Repair, so I select "Start Windows Normally". After this I boot in normally, but its damn annoying. Any ideas why this is happening, what I can do to fix it?

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• Bootcamp's "Use all F1, F2, etc. keys" switches back automatically

  - by cheeesus

  I use Windows 7 in a Bootcamp partition on my iMac. I always check the option "Use all F1, F2, etc. keys as standard function keys", and when it's checked, everything works great. But recently, something switches this setting back to 'unchecked' every few minutes. I constantly have to open the Boot Camp Control Panel, uncheck the checkbox, check it again and click on 'Apply'. And five minutes later, the F2 key again controls the brightness of the screen and not the renaming of files in Explorer. This is driving me mad. What could be the cause of this? Is there a keystroke to switch this feature?

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• bind tmux prefix to OS X cmd key (or any other binding)

  - by rubenfonseca

  Hi all. I'm used to iTerm2 (or Terminal.app for this case) on OS X. But I want to move to use tmux (or screen, but the problem is similar to both apps). So my idea is to have a single iTerm tab with a tmux session opened with multiple tabs. To do the transition I have a basic feature I need to configure on tmux: switch the the tab 'n' by using cmd + n (like Firefox, Chrome, iTerm2 itself, etc) However I can't find a way of mapping the cmd key on the mac keyboard. I first tried to implement cmd as a prefix key, with no success. I've tried setting set-option -g prefix M-a (hoping for Meta-a) set-option -g prefix ^a (hoping for ^ to work) but nothing works. Is this possible? I don't really need to bind the prefix to cmd, but I want to be able to change tmux tabs with cmd+n. Thank you

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• Mac keeps switching to second graphics card

  - by 1.21 gigawatts

  I have a MacBook Pro and whenever I enter certain apps (video camera app or Photoshop for example, the graphics card switched. I didn't know this was going on at first; just that the screen kept changing colors as I opened or closed different software. Later someone told me that the software was causing the OSX to switch graphics cards. It's annoying. How do I keep one graphics card (the better one) enabled all the time? I don't care about power consumption because it is plugged in all the time (though I'm curious how much difference it makes). I just want one graphics card enabled.

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• How do I disable aalert beeps

  - by wheresrhys

  My HP pavilion laptop is getting pretty old and the speakers no longer work properly. So I've disabled all audio devices, including disabling the light-touch volume controls at boot-up. The one sound still here that I can't get rid of is teh alert beep whenever there's an error. It's annoying at the best of times, but when your laptop has no other sounds at all it's intensly irritating! Nothing I chaneg in the windows settings or in the BIOS seems to have any effect. Any ideas how to switch them off?

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• Remove Live ID authentication from user account

  - by slugster

  I've just run in to a really annoying issue with Windows 8.1 - it seems I cannot remove the need to use Live ID credentials from an account without completely deleting that account. I know the process to do it - use the Disconnect link from the Accounts-Your account screen. The trouble comes when you get to the Switch to a local account screen, it will not let you enter the current account for the user name, instead you must enter a new one thus creating a new user account. Can I revert back to using just a local login without having to recreate the account? It seems quite retarded that I have to recreate the account, as deep down the only change required is which credential provider is used to authenticate the login. (Note that this Live ID linkage was created by using the Windows Store, not as a result of an upgrade from 8 to 8.1).

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• DSL vs Cable latency

  - by tovmeod

  currently I have a 10Mbps DSL line and I'm thinking to switch to a cable since they got 100Mbps for a little less than double the price I'm paying for 10Mbps. In other words the cable company is offering 100Mbps for the price of 20Mbps DSL. Since 10Mbps is more than enough for me I am worried about the latency, I saw this that is just a guy experiment, that shows that cable and DSL are the same in practical terms, and this but I couldn't grasp it, not sure if it is helpful. So my question is if there's any practical difference between cable and DSL, mainly in latency terms but I would be also interested in other advantages/disadvantages. This is for my home connection, I work from home but I don't run any server, I most of the time code, skype and eventually game.

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• How to reset a Fritz!Box DSL router to factory settings?

  - by damluar

  I need to change the setting of router Fritz Box. The setting were set by another person. I can't connect to router using cable, may be standard port or address were changed. So the only option is to switch to factory settings. Usually there is a button which deletes all the settings. I read the documentation and they tell to call the number #991*15901590* on the router. Do I have to connect telephone to router?

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• nginx configuration for URL URI paths

  - by hachiari

  I want to switch my webserver from apache to nginx however I have difficulties in converting my current htaccess to nginx configuration the conditions that I need: I want everything to be like apache, it can read file such as js, css, jpg, png ,etc I am currently using CodeIgniter PHP frameword, it uses the URI system thingy... So my htaccess configuration for CodeIgniter URI is: RewriteEngine On RewriteBase / RewriteCond %{REQUEST_URI} ^system.* RewriteRule ^(.*)$ /index.php/$1 [L] RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^(.*)$ index.php/$1 [L] RewriteCond %{HTTP_HOST} ^www.domain.tld [NC] RewriteRule ^(.*)$ hxtp://domain.tld/$1 [L,R=301] I am also using minify to compress my css and js files, so the way I call my css and js is like: hxtp://domain.tld/?=css hxtp://domain.tld/?=js I tried some configurations from the net, but I could only solve problem no 2 Thank You

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• conditional formatting in excel 2010

  - by bigMir

  I have some strange problem, after I've made switch from excel 2007 to excel 2010 I've started to receive duplicates of conditional formatting rules in excel. For example: I have conditional formatting which colors the cell when it detects that cell contains a word "hello". When I copy this cell to other cells (which also contains the same rule) sometimes I receive duplicates. Those duplicates really slows down excel. So my question is: is there any possiblity to disable copy/paste of conditional formatting (I want to copy/paste all content excep conditional formatting, all formulas values and other stuff). P.S. Just to make it clear, I don't know how to reporduce that problem, it occurs sometimes and I work with excel a lot

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• How to require a cell input if another cell has a value

  - by Connor

  I'm trying to edit the VBA for one of my workbooks so that If there is a value in column A, then a value for column C is required or else the file won't save, but i'm having some trouble with this. I can get excel to check a cell for any input and require it have input, but I need it to check if a different cell has an input before requiring input. This is because not all of the lines in my spreadsheet will be used all of the time, but some people forget to put very important pieces of information in the spreadsheet which throws some of our balances off. An SKU is entered on the sheet when we switch to a new one, and I want the program to make sure there is an amount of product in a given cell every time a new SKU is entered onto the sheet. Thanks.

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• Best way to bring a system down with a "maintenance" message?

  - by iftrue

  What's the best way to bring down an apache2/tomcat6 setup for maintenance? Specifically, apache2 can stay running, but tomcat needs to restart to accomplish a number of tasks. My initial thought is to change the root directory in the httpd.conf VirtualHost entry to point to a new location, then issue a force-reload command to direct traffic away from the actual tomcat application. After some period of time, I perform tomcat maintenance, switch the VirtualHost entry, and force-reload to begin directing traffic back. Is there a better way to do this? I'm looking to start work on a rather extensive web application, and my deployment procedure right now involves shutting everything down and bringing everything back up. Is there a better way to do this than what I've proposed?

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• Default file type supported by IHS web server

  - by SK

  Hello, We earlier used IIS web server. To redirect some URLs ending with .asp, we created a directory structure based on URL's to be redirected; wrote VB script in .asp files to redirect present page to desired page and placed these .asp files in appropriate directories. Finally copied this directory structure to the docroot of IIS webserver. Due to some reasons, we had to switch to IHS web server. As IHS does not support .asp files, we can't use same directory structure having .asp files to redirect our URLs. Please let me know the default file type that is supported by IHS webserver (as the default filetype supported in IHS is .asp). Thanks in advance! SK

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• Anyone interested in obtaining a cable list from a visio Diagram? [closed]

  - by Alex

  it's my first post here. Just wondering if anyone had to deal with the following problem - you have to install over say a 100 network elements and servers - cabling is done via contractors, so you need to provide them with an accurate, error-free cable list - your inputs are a set of detailed, port by port, visio diagrams. Prb is to obtain the cable list and get the cabling started while you're busy crafting the switch/routers configs. I coded a Visio plugin, which I plan to release under the GNU license, that returns a cable list from a diagram, and tested it on intermediate size infrastructure, 2K+ cables. It works well. The tool needs a little work to be user friendly, so before getting started, I wanted to know if that was worth the effort. Questions are welcomed, let me know -A PS: the tool is targeted for those who need a port by port description of their network, in the form Source/slot/port/Destination/slot/port.

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• language input is changed by itself, not only by keystroke of alt+shift

  - by Berry Tsakala

  I'm using 2 and sometimes more input methods in windows I use ALT + left Shift for switching between languages. Sometimes, every once in a while, another action(s) trigger the language switch. It happens in the same application, (i.e. the input language changes for the same app without my request) or, while switching tasks with Alt-Tab, which causes language input to change in an arbitrary application's context. I realized that some of these actions could be the use of the scroll wheel button. It's super annoying How do I disable any other language switching, and stay only with alt+shift? Why does this happen? It happened to my in the past in these and more occasions: middle mouse click pressing Windows key pression Alt Tab (unknown)

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• MySQL on a laptop for remote workers - MyISAM keeps corrupting

  - by Jonathon

  We have an application that is used by remote, mobile workers. It intalls WAMP (Server2Go) on a laptop and uses MySQL to store data locally. All tables are MyISAM. Once a day, the workers sync the database to our central server via HTTP scripts that query the data and post it to our site. The problem is that many of these laptop database tables are corrupting continually. It appears that MySQL acts like it saves the information (I don't get any query errors), but the table gets corrupt. I have to repair the table constantly (which removes several rows of data in the process). Does anyone have any ideas about how to work around this problem? Would it be wise to switch to InnoDB on the laptops? How about a different database system altogether. I have looked at MySQL Embedded, but it appears to be the same engine as the regular MySQL.

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• Setting up a linux server to share an internet connection.

  - by Skizz

  I in the process of reconfiguring my network. It is currently like this: internet - modem - wireless router - wired server/clients | |---- wireless clients but I need to move the router to get a better signal for the wireless clients. So, I'm looking at this: internet - modem - server - switch - wired clients | |---- wireless router - wireless clients How do I set up the server to enable this? Also, what set ups do the clients need. The server is Ubuntu 9.04 and the clients are a mix of Windows XP / 7, Ubuntu and printers. I believe this new set up will allow me to control access to the internet, which would be useful.

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• Network monitoring solution

  - by Hellfrost

  Hello Serverfault ! I have a big distributed system I need to monitor. Background: My system is comprised of two servers, concentrating and controlling the system. Each server is connected to a set of devices (some custom kind of RF controllers, doesnt matter to my question), each device connects to a network switch, and eventually all devices talk to the servers, the protocol between the servers and the devices is UDP, usually the packets are very small, but there are really a LOT of packets. the network is also somewhat complex, and is deployed on a large area physically. i'll have 150-300 of these devices, each generating up to 100+ packets per second, and several network switches, perhaps on 2 different subnets. Question I'm looking for some solution that will allow me to monitor all this mess, how many packets are sent, where, how do they move through the network, bandwidth utilization, throughput, stuff like that. what would you recommend to achieve this? BTW Playing nice with windows is a requirement.

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• Acer Aspire PC locked up and won't re-start

  - by Jim Scott

  Vista Home Premium locked up on 5/12/10 while on a website and could not get to 'control-alt-delete.' Mouse locked, too. On/off switch would not work (stayed lit) so I unplugged the power cord. When I tried to re-start the computer I could hear a fan running but it would not boot up, nothing on the monitor and no lights on the keyboard. O/S was preloaded so I do not have a boot disk.I tried pressing F1, F2 and F11 and also with monitor off but nothing worked. Computer has not been been moved or abused so all internal connections should be fine. Have updated Windows Vista Home Premium regularly and also updated Avira anti virus and anti malware programs regularly. Using Firefox and Vista Home Premium O/S. Computer is 2 years old and was purchased new from Best Buy.

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• Can't access DD-WRT set in DHCP forwarder

  - by Chris Marisic

  This might sound amazingly stupid but I have a DD-WRT (micro) router that I placed in my network to act as a switch and as a WAP while relying on my cable modem to be the DHCP server. In my attempts to get the configuration right I put the router into DHCP forwarder which then made everything work correctly. The problem is now I can't seem to connect to the router in any fashion to add mac addresses to the WAP access list. Is there something I'm missing or do I need to try a hard reset on it and reconfigure everything?

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• How Can I assign an IP address to my virtual Windows Server, so that I can start using it almost as a VPS?

  - by Nelson Symonds

  We are a small office set up with two PC's out of which one of my PCs runs 24hrs. Its almost equivalent to a small server, but right now we're in need of a server which is why I am planning to keep my machine as well as a server into a single PC. I've used VMware Workstation to create a powerful Windows Server 2008 within my PC and I want to attach it to my Network Switch through the same PC where I am hosting it. I want to use it almost like a physical server with an IP address and everything so that I can connect from one Pc to the Server directly or my applications can connect to Server straight with the IP address. How should I do this? Step by step instructions would be appreciated. Thanks in Advance, Best regards Nelson

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• VGA resolution with Sony Bravia TV

  - by prestomation

  I just bought Sony Bravia KDL40S5100 tv. The VGA input is acting weird. I have a Gateway desktop with Windows 7 and Intel 945 graphics. I also have a laptop running Ubuntu 9.04. The TV will not display the gateway when the resolution is over 1360x768, I have to wait for it to time out and bring me back. The Intel driver even urges me to switch to the "recommended" 1920x1080. I just installed Win7 using this tv as the monitor. When the orginial welcome screen started after setup, it started me at 1080. I had to start in safemode to set a res that would work! When I plug my laptop into the TV, 1920x1080 works just fine. Any ideas? This laptop also has Win7, which I am going to try, but I haven't gotten a chance yet.

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