Search Results

Search found 19586 results on 784 pages for 'machine instruction'.

Page 567/784 | < Previous Page | 563 564 565 566 567 568 569 570 571 572 573 574  | Next Page >

• Are Uninterruptible Power Supply (UPS) at home really a worthwhile investment for home computing? [c

  - by Jian Lin

  Possible Duplicate: Is a UPS a good investment for a home machine? I have 2 Uninterruptible power supplies at home, but they seem to expire after 5 years or so. During this 5 years, it maybe saved the computer from turning off twice. But I wonder, I often save my documents every 10 minutes. So the most I can lose is 10 minute worth of work. Not to mention that, I may not be editing anything when the power is out. Also, when the UPS expires, one of them will give out beeping sound once in a while, probably signaling the changing of the battery. So I can either buy 2 new UPS or just buy 2 power outlets instead. 2 UPS, costing $160 to $250 roughly, can it be really worth it if it can save your computer from powering off for just 2 times? What are the alternatives?

  Read the article

• Cannot access https sites through any browser on Win XP?

  - by mooep

  This isnt a firewall issue, I can telnet to gmail with no problems, but all browsers (chrome, IE, firefox) return a This web page is not available. error when tring to access it through the browser. I can access the same pages, using the same browsers, on the same machine, but through a different user account with no problem. What the hell is going on? Help appreciated. Edit: This is definitely a windows setup issue - I have just created a new admin account and can access https with problems. This is seriously infuriating.

  Read the article

• When NOT to use virtualisation? [closed]

  - by Nils

  When virtualisation was new, we tried to virtualized everything. Then came the cases where the virtual machine was very much slower than a physical one. It boils down to the following ruleset (with us) when not to virtualize: Network-io-intesive applications (i.e. with many interrupts/packets) Disk-io-intensive (if not on SAN storage) RAM-intensive (this is the most precious resource) Now this is true for a combination of XEN using local DRBD storage. The same seems to be true for Hyper-V using DAS. I wonder - is it true for all combinations - and what are your limits on these combinations?

  Read the article

• Too Much Swapping, even though RAM is 2/3 Empty

  - by indyaah

  I have a VPS with 9GB RAM, 300GB HDD, 3 GB Swap, 7 Cores. The OS is CentOS 5.7 Final. I have postgres9.0 running on my machine, with proper tuning done (at least by book/wiki of PostgreSQL). What happens is most of the times when some complex query run (by complex I mean select with maximum 3 Joins), eventhough 66% of my RAM is unused there is ~99% swapping is happening. Plus it screws up my disk IO which is most of the time reaching ~100% and slows down everything else. (I tend to believe something's wrong with my disk.) I dont understand the reason of this much of swapping happening. Is it because of context switching?? Most of the time my processors are idle, while the IO wait goes upto 30% during pick times. Would appreciate if some can shed some light on it. Thanks.

  Read the article

• Best tool for writing a Programming Book?

  - by walkthedog

  Well, this is not directly programming related! But a friend of mine wants to write a book about programming. Now he asked me if I knew a good software for this, because Word crashes 10 times a day on his machine, and OpenOffice is just very chunky and slow. Also none of them seem to have any useful support for including Code Listings (examples) with useful syntax highlighting or at least some sort of support for inserting code (i.e. indicating line breaks with arrows that turn around, line numbers, etc). Latex is out of question since it's incredible hard to use and has no really useful feature for including tables. It's a mess. Maybe some IT authors are here who can give some hints what tools they use. That would be great!

  Read the article

• Which UPS, for home use, which can automatically shutdown the PC when battery is low?

  - by Tony_Henrich

  I am planning to build a single server machine which is highly dependent on data residing in RAM for performance reasons. I am looking for a UPS which can power the PC during a blackout (very rare) and when the battery level is like %20, it sends a signal to Windows 2008 to shutdown. Even if it's only for a few minutes, that's good enough. This is for home use so I am looking for an inexpensive unit ( less than $300? ). Which brand/model is good choice? I prefer one whose battery is easily & cheaply replaced.

  Read the article

• Delete Ubuntu and Grub from PC (and BIOS unaccessible)

  - by Temitope

  I've really done a mess while upgrading 12.04 to 12.10, or my PC did, or ubuntu did, I can't really tell. The situation now is I have a dual booting machine, Windows 7 and ubuntu 12.10 -When turning on the PC, I can't access boot options, I've tried every thing, esc, f1 f8, f10 (I have a Hp pavilion) but all I can see is a short-lasting screen with three lines reading something like "error:files not found" or "link not found". So the PC turns to the Grub loader screen. This is already a BIG problem. It means I can't change boot order, and I'm diperate, since it doensn't seem that repairing my operating systems will bring my BIOS back. -If I chose Ubuntu in grup, it loades but then frezes on the desktop, I may be having problem with unity3d, or compiz, which was reported to be crashing the first times I started ubuntu. Now, after turning off and on the pc several times, no crash is reported again. Ubuntu just load my background image and nothing else. Not the side menu, not the header, nothing. Althogh the system seems "functioning", when I press the power button on the PC, for example, the normal shutdown dialog window appears. -If I chose Windows, Grubs tells me that something is not found, and to press any key to continue; I do it and then Windows loads perfectly. What I now want to do is 1- use EasyBSD to change boot order and boot Windows partition first 2- delete the ubuntu partitions from within windows disk manager What I except happening is that My PC turns to, or near to factory booting settings: I press the power button and Windows loads without asking me nothing I have acess to all my hardisk from withing windows Is that what will really happen? Are there danger I'm not seeing? What I don't except happening is The BIOS access key return functioning How could I eventually solve this? I would like to reinstall Ubuntu, 32 bit version this time.

  Read the article

• How to access network shares, printers, etc.through Windows 7 Built-In VPN?

  - by mbrion

  After I have successfully connected to a Windows 7 box via the built-in VPN: how do I access shares, shared printers, network appliances, etc.? So, call me bad at googling, but: I can find dozens of articles on "How to Set up a VPN Connection" and "How to connect to a VPN" for Windows 7... but I can't find a single article on how to access resources after connecting. I have a home VPN set up in Windows 7; I was able to connect to it from my friend's Windows 7 machine last night. I expected to be able to UNC into my shares; I also expected to be able to go to "Start Computer" and Click "Network" on the left side, and then see all of the devices on my home network (while the VPN was connected). Am I missing something obvious? How do I make this happen?

  Read the article

• Install correct libraries depending on 64/32 bit

  - by Rich

  I am using Bash to install a customised version of JBoss, and one of the things I would like to do is install the correct version of the Apache Portable Runtime, which is a native binary. This script could be run on both 32 and 64 bit versions of RHEL. What are my options for identifying which version of the APR to install? I think we only have 32bit and x64-based systems here. I would still like to identify i64 systems so that the script can refuse to install on that type of machine. I am aware of using uname -m and grepping /proc/cpuinfo to find out, but was wondering which approach others would recommend?

  Read the article

• A lot of connections to port 6881 - some new attacks or what ?

  - by stoleto

  Ok so i am the admin of a small network with a web server and only the web server has a direct connection to the internet, the rest of the network are connecting through another place. I was inspecting the traffic on the server with tcpdump, and i found a LOT of connections from different IP addresses to port 6881. All ports on my machine are blocked except those who are really needed for a web server (like port 80), so i checked it out and confirmed that 6881 and the rest ports are in filtered(firewalled) state. Why all those ips are continuously trying to make connection to the server on port 6881 no matter it's not open at all ? Is this some new kind of attack or maybe there's some new exploit (maybe 0day?) for some service running on 6881 ? AFAIK on 6881 operate the bittorrent and similar, so really, what's the deal ? It would be nice if someone clarifies me some things.

  Read the article

• Exchange 2010: Import a PST when Local Move Request fails

  - by gravyface

  So the trail of tears continues with my SBS 2003 to 2011 migration: all the mailboxes have moved mailbox store from OLDSERVER to NEWSERVER, with the Local Move Requests completing successfully, except for one. I've logged into their machine and have exported their mailbox as a PST. I'm about to import it, but it seems to me that because the mailbox is still on OLDSERVER, even with a new Outlook profile pointing to NEWSERVER in Outlook, it'll push the mail into the current mailbox store on the old server. Please tell me I don't have to blow away her existing mailbox, logon, etc. on the old SBSERVER: is there a way to change the state from "Legacy" to "User Mailbox" without actually moving the mailbox store? Create a new mailbox for her user in NEWSERVER?

  Read the article

• Settings what-opens-what once and for all (Backing up File Associations)

  - by ldigas

  Every time I switch machines (as in, get a new one, or reinstall an OS or something like that) my precious file associations get lost. And the next six months pass slowly until I again set them up right. Is there a program that allows me to: Set all the extensions I would like to open with let's say, Vim, without setting each one of them individually. Something of a kind: Vim opens: .... list of extensions ... and/or A program which lets me backup my current settings, and when I copy those to a new machine it lets me just modify the paths where I putted the applications in question, and it does the rest (again, associates that program with all the extensions it opened before).

  Read the article

• Spring security and MySQL under CentOS

  - by user223268

  i'm trying to connect to MySQL using spring security, spring should access the database and check the user and pass using direct sql. the problem is when i use localhost to access my local database nothing happen no exceptions no any thing but login fails. if i changed the host of the server to one of my team machine IP address the program login successfully. the only deference is that i'm using CentOS 6.5 and my team is using Windows. how can i make sure i'm configuring MySQL correctly and what privileges should i grand to my users to be able to finish this. note: i'm a newcomer to linux and MySQL server administration.

  Read the article

• Find an old static IP address on a mac backup?

  - by Joe

  I have an old backup of a mac via time machine, and I was wondering if there is some sort of accessible file that would have the static IP of the old computer it was backed up from. If you are curious, I am in IT and it is a PITA to get a new static IP here. I am just trying to use the old one to save some hassle. I've tried searching through the system log with no success (but I might be doing it wrong- grep with a regexp for an IP). Thanks!

  Read the article

• cant access my local web server with the external IP

  - by TommyG

  I havent been able to find a solution to my particular problem. I have a MAC which I set up as a web server and configured my router to forward to the local IP. When trying to access my site from outside, it does say "It works!", however, when I call a simple Hello World PHP script that I have, I am getting an error that the page could not be opened. I did enable PHP on my machine so thats not the problem. I really have no idea how can I access - I followed so many tutorials and did everything correctly. My router is a Linksys WRT160N if it matters at all. In the port forwarding section, I selected to forward

  Read the article

• Connections to Cotendo CDN servers are unreliable

  - by user139050

  I've been having a lot of trouble viewing certain websites - Gawker Media, DeviantArt, etc. - and through further investigation they all appear to be using a CDN called Cotendo. On my machine, and only this one, connections reset themselves midway through the download most of the time. This is not browser-specific; even wget (Cygwin) is unable to download anything without retrying a few times. This happens inside virtual machines as well. Unfortunately, I'm pretty stumped on why this is happening. My hosts file is empty (except for a couple LAN-specific things) and I've checked a few different DNS servers, but I can't really think of anything else to try. Anyone have any ideas?

  Read the article

• How to save your Linux state (suspend to disk) periodically to recover from crashes?

  - by WoLpH

  One in a while my laptop crashes/dies because of a bad/empty battery, crappy wifi driver or whatever other reason. For a while I've wondered if it's possible to force Linux to periodically save the state (like vmware snapshots) to disk so you can restore from that with possibly slightly outdated work but at least with all of your apps open in the same state you've left them. I don't really see the point in having to boot everything from cratch constantly, although KDE saves your state on logout, that doesn't happen periodically (by default) either. It would make it much nicer to recover from your crashes if your ram was written to disk periodically. Anyone know if there's a system call to do this without also shutting down the machine? Even a manual button to save the entire state would be nice.

  Read the article

• Changing Chrome Working Directories on Mac clients

  - by Jason

  We're using Mac OSX 10.6.8 with NFS for home directories. Chrome seems to not like this, for a user who is logged in more than one machine. AFP was ok, but for other reasons we need NFS. It only allows you to start one instance. Ie, userA logged in to Mac1, Mac2. Can only have chrome open on Mac1 OR mac2, not both. I have read at this thread, changing working directory, and sym link can fix... but I can't find the details. Can someone help?

  Read the article

• Can't get to the login screen

  - by Rod

  I upgraded my wife's Windows 7 machine, to Windows 8 Pro, about 10 days ago. She's been using it fine ever since. We typically leave our desktops running 24/7, and just turn off the monitor. This morning she turned the monitor on, and saw the screen with the Seattle Space Needle, and then she pressed the enter key to get to the login screen. Nothing happened. Next she pressed the mouse key. Nothing happened. The mouse moves around fine. But we can't get it past the Seattle Space Needle screen. She replaced the batteries in both her keyboard and mouse recently. So, what's going on? How do we fix it?

  Read the article

• Forwarding audio like X in SSH

  - by Akilan

  While it is possible to use X applications remotely by using -X switch in ssh, the sound is being played in remote machine's speaker only. For example if I view a film in VLC/Totem only video is visible and I can't hear the audio. Is there a way to forward audio too? [without digging through Pulse-audio's setup, I mean; Like how ssh understands X forwarding by itself.] I have tried this only in Ubuntu (in various Ubuntu versions from 9.10 through 10.10), if that helps.

  Read the article

• How can I retrieve "remembered"(stored) wi-fi password from a win. 7 device?

  - by user180880

  I have access to PC, and I am a standard user. Everything(incl. "show charecters" tickbox at wiriless menu) requires admin access. Now, that said machine is actually like a big tv with touch. Type-stuff is handled by virtual keyboard of windows. I can reach to c:\ProgramData\Microsoft\Wlansvc\Profiles\Interfaces and can see-open files there, which is I assume where passwords stored are. Now the problem is that these passwords is encypted. I'm ok with if there is a way with changing/resetting admin password as well. Considering this device has nothing but massive amounts of usb(yep, not even cd-dvd // rw) the only way is from inside or with usb without admin rights.

  Read the article

• remoting to pc's already setup with pocketcloud

  - by KiloJKilo

  I use pocketcloud to remote desktop into my PCs on my home network. I would like to remote desktop with windows on my laptop via windows 7, but I'm not really sure how to, without breaking pocketcloud's connection. Does pocketcloud change my router's port forward to each machine as needed? Is there a way I can piggyback on the pocketcloud app? It appears to use 3389 but nothing is routed on that port in my router. Any ideas on how to accomplish this?

  Read the article

• Recover snap server data

  - by Ugg

  Hi I have a snap server 110 the machine powers on ok and the healthcheck passes but unable to connect no responce on the assigned ip or any ability to reach the device via the snap server manager. Believe the device is powering on but not loading the OS. Tried pulling the disk running and hooking up to a windows PC via USB, and using disk internals linux reader I am unable to access two of the partitions. ( one of which is the large data partition). There are three partitions on the the drice only one is accessible via Linux reader. I am looking to recover the data of the drive can anyone suggest a DIY option please?

  Read the article

• equivalent to CDN but for dynamical content?

  - by ajsie

  so i know for serving static elements (css, js, images, videos etc) you should use CDN since they are spread out throughout the world. but how could i spread out by apache servers? is there an equivalent to CDN but for dynamical pages? or is it the traditional LAMP way. if so, i guess my best option is to find an international hosting provider that hosts in different countries, so the content will be served from the country located nearest the client machine. any suggestions of such hosting providers? or is it best practice to contact different hosting providers in different countries that do not relate to each other. what is the right way to go?

  Read the article

• Mavericks Instalation freeze! - please advice. Progress Bar not moving

  - by MEM

  It says "Time remaining: About 39 minutes" or it goes to 42, then 36, but the blue progress bar doesn't move. I've wait more than 1 hour, and the progress bar is still there. i reboot, and the same thing occours again. Progress bar freeze. What can I do? I wish NOT to loose the data there present. Should I re-install Lion a d download Mavericks again? I've no time machine backup. that thing never worked for me. Any faster option? Please advice!

  Read the article

< Previous Page | 563 564 565 566 567 568 569 570 571 572 573 574  | Next Page >