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• changing filesystem format from jfx to ext4 without losing data

  - by A.Rashad

  I have a fresh Lucid Lynx (Ubuntu 10.04) running on a laptop. where I defined the filesystems as: mount point / on ext4 (46 Gb) mount point /home on jfs (63 GB) swap as 3 Gb I left the machine over night to do some task, without AC power supply. next day in the morning I found it on standby, task completed, but filesystem was not reachable. it gave me I/O error it seems that there is a problem with jfs and standby. anyways, to avoid any hassle, I want to move this mount point from jfs format to ext4. can I do this without losing data and without the need to place the data in a temporary location until transformation is done? sorry to mention that, but I recall back in the windows days, we would change a FAT16 to FAT32 or a FAT32 to NTFS without having to lose the data. I hope this is available on Linux.

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• Which built-in account is used for Anonymous Authentication in IIS 7?

  - by smwikipedia

  We know that Microsoft IIS 7.0 offer a slew of authentication methods such as Anonymous Authentication, Form Based Authentication, Digest Authentication, etc. I read from Professional IIS 7 published by Wrox that: When we use Anonymous Authentication, the end-user does not supply credentials, effectively mak- ing an anonymous request. IIS 7.0 impersonates a fixed user account when attempting to process the request (for example, to read the file off the hard disk). So, what is the fixed user account impersonated by IIS? Where can I see it? If I don't know what this account is, how could I assign proper permissions for the clients who are authenticated as anonymous users? Thanks.

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• PC boots on then off & 30 sec. later on again, it wiil shut off on itself mostly in idle or just unexpecticly

  - by Jody

  This problem started w/ my sons desktop, it would just shut off after a bit of work or stay on for a long time & to get it to unfreeze is to cold boot it, i put a new HDD in & I still have the same issue, RAM is good power supply fan is moving quite as well as all the rest of the fans it has stayed fairly dust free, i'm at a loss ,I have defaulted all the factory settings changed battery & ungraded to a new OS. I still have the same problem. the power light stays on after it has shut down & when upon starting it goes straight to safe mode option page, I start in last good config. reboots again takes 30 sec. to boot & will work again for a while, the only other thing I haven't tried was a graphic card replace, i'm onboard video now & have been.

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• Delete temporary files from batch script in xp

  - by Keith Bentrup

  I'm looking for a good batch script that would quickly find & clean all the known safe temporary folders/files from Windows (as many variants as possible) machines (e.g. the windows temp folder, all users IE temp folders, etc.). I'm fond of UI tools like CCleaner (over Cleanmgr.exe), but when I'm trying to clean several computers quickly and/or with minimal involvement, it would be nice to have a script. Plus with a script, I could chain several scripts together. Maybe one to then fire up various antivirus and/or malware detectors. Anyone have a good one or can point to a good resource?

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• Laptop goes black after a minute or so

  - by ZEDA-NL

  I have a laptop that is behaving strangely. When I turn it on, it does everything what it is supposed to do, but after a minute or so I hear a Click and all goes black. It's like it turns off the power. It doesn't matter what the laptop is doing. It also happens when it's just waiting in the Bios setup menu. Has someone experienced this before? Can it be the power supply? Can it be a cooling problem? Any ideas? By the way, it's a Compaq Presario Laptop, maybe 3 years old already.

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• Asus EEE PC 1005HA (XP Home) refuses to connect to Virgin Mobile MiFi

  - by Dennis Wurster

  My client has an Asus EEE PC model 1005HA, and we're attempting to connect it to the WiFi network created by a VirginMobile MiFi unit. They also have a MacBook Pro with Snow Leopard that has absolutely no issue connecting to the MiFi. The specific symptom is that the netbook fails to lease an IP address from the MiFi unit. I supply the 12-digit numerical password (WPA) to the netbook, it throws a 'waiting for network' dialog with an indeterminate progress indicator, and then times out. Update: We've determined that this behavior has stopped when the EEE PC and the MiFi unit were taken out of the client's home, and to a different home that didn't have an existing wifi network. Similarly, when taken to a third location that didn't have wifi, the EEE PC and MiFi got along swimmingly. My current theory is that the existing wifi networks and the wifi leg of the MiFi unit are on the same channel and competing with one another. Perhaps the MacBook Pro has the capability to overcome this interference, while the EEE PC doesn't.

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• Dell V105 printer and OS X 10.6

  - by James

  I am trying to get a Dell V105 printer to work with my iMac. It is running 10.6 and I have installed all the drivers on the Snow Leopard disk. I believe there is no official Dell driver but I have also heard the Dell printers are made by third parties that may sell the same printer under different names. There a quite a few Lexmark models that seem to look very similar and I have tried setting the driver to the 2600 series that looks very similar but that has not enabled me to print. Although it claims to give me the supply levels correctly. Can anyone help? Thanks for your time

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• Making a shortcut for the Skype Metro application

  - by Phazyck

  In the accepted answer to this question, it is described how to make a shortcut for any Metro app, which you can then place in the startup folder. Example: By making a shortcut, People.url, which points to "wlpeople:", and placing it under the path, "%APPDATA%\Microsoft\Windows\Start Menu\Programs\Startup", one can make the People app start up along with Windows. I'm close to doing the same, but with the Skype app: My attempt at making the Skype Metro app start up with windows: By making a shortcut, Skype.url, which points to "skype:", and placing it under the path, "%APPDATA%\Microsoft\Windows\Start Menu\Programs\Startup", one can make the Skype app start up along with Windows. This shortcut will start up the Skype app, however, if the app is not already running, the app will hang when starting up. Can anyone tell me how to fix this? Am I using the wrong shortcut, or do I perhaps need to supply it with some arguments?

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• Install multiport module on iptables

  - by tarteauxfraises

  I'am trying to install "fail2ban" on Cubidebian, a Debian port for Cubieboard (A raspberry like board). The following rule failed due to "-m multiport --dports ssh" options (It works, when i run manually the command without multiple options). $ iptables -I INPUT -p tcp -m multiport --dports ssh -j fail2ban-ssh" iptables: No chain/target/match by that name. When i make a cat on "/proc/net/ip_tables_matches", i see that multiport module is not loaded: $ cat /proc/net/ip_tables_matches u32 time string statistic state owner pkttype mac limit helper connmark mark ah icmp socket socket quota2 policy length iprange ttl hashlimit ecn udplite udp tcp What can i do to compile or to enable the multiport module? Thanks in advance for your help

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• Packets marked INVALID in FORWARD rule

  - by Raphink

  I have a firewall that has 3 IP aliases on 1 physical interface. Packets get dropped between these 3 interfaces (either ICMP, HTTP, or anything else). We tracked it down to these packets being marked INVALID in the FORWARD rule and dropped due to the this rule: chain FORWARD { policy DROP; # connection tracking mod state state INVALID LOG log-prefix 'INVALID FORWARD DROP: '; mod state state INVALID DROP; mod state state (ESTABLISHED RELATED) ACCEPT; } (That is, we see the INVALID FORWARD DROP logs in dmesg) What could be causing this?

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• Restricting output to only allow localhost using iptables

  - by Dave Forgac

  I would like to restrict outbound traffic to only localhost using iptables. I already have a default DROP policy on OUTPUT and a rule REJECTing all traffic. I need to add a rule above that in the OUTPUT chain. I have seen a couple different examples for this type of rule, the most common being: -A OUTPUT -o lo -j ACCEPT and -A OUTPUT -o lo -s 127.0.0.1 -d 127.0.0.1 -j ACCEPT Is there any reason to use the latter rather than the former? Can packets on lo have an address other than 127.0.0.1?

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• What could be the maximum number of hosts on a 100BaseTX ethernet network ?

  - by snowflake

  Hello, I'm having two ip networks (192.168.1.x and 192.168.2.x) bridged on a server, but all hosts (fixed IPs) are on the same physical 100BaseTX ethernet (with a daisy chain of 48ports switchs). Often, I loose link between the server and hosts of the second network. Usually if I reboot the host, the connection work again, and if I force connection to be active, the connection keep alive until I ping after a while without active connection. I'm wondering how many hosts can be connected on the same network without troubles, and eventually how many switches can be daisy chained ? I suppose maximum length between hosts to be 100meters to the hub or 200meters between extremity of the network. Somebody is suggesting 8 switches here : http://www.tek-tips.com/viewthread.cfm?qid=1137879&page=12 Any comments on how to find a solution to the problem and not answering directly to the question are welcomed!

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• Share ADSL Internet connection between two computers 40 meters away (straight) from each other

  - by dario_ramos

  I have a box with a working ADSL Internet connection. About 40 meters away (straight), in another house, there is another, older box. There are two houses in between. Would there be some practical way to supply an Internet connection to the older box? The neighbors are ok with us installing cables and stuff. I'd say wifi would not be practical, since the houses in between would weaken the signal too much. And using Ethernet cables might require a switch or router in between, due to Ethernet distance limitations. Advice?

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• Computer has power but won't boot

  - by John Isaacks

  When I power on my computer it will not boot. It will not even go into bios or anything. It is as if it is not powering on at all, however the decorative casing lights turn on and the PC is making noise (like from the fans). I am reluctant to think it is the power supply since some part are getting power. I do not know what it is though? For the couple days leading up to this, the computer would make a loud noise and the screen would stop displaying anything. I had to reboot to get it to work again. Now nothing happens when I boot, except the case lights come on and it sounds like some fans are coming on. Any ideas?

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• How do I configure namecheap for "arbitrarily-nested" wildcard subdomains?

  - by rabidsnail

  I'm trying to set up something like nyud.net, where any arbitrary chain of subdomains resolves to the same CNAME record (which in my case points to an amazon elastic load balancer). Ex: www.gogle.com.nyud.net:8080 points to one of their cache servers, which looks at the HOST header and returns www.google.com. I'm using namecheap as my dns host. Adding a CNAME record for *.mydomain.com doesn't seem to do anything (nslookup gives NXDOMAIN for all subdomains). What do I have to do to set this up? Do I have to use something fancier than namecheap (like route53)?

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• Installing Drupal: Database configuration problem.

  - by abelenky

  I am trying to install Drupal 6.16 on a clean website. I get through the "Verify Requirements" page easily. On the Database Configuration, I supply all the proper info, but "Save and Continue" returns me back to the same page, with no error message. I am unable to proceed past this point. I've verified my info with the ISP, including a non-local database host (under Advanced Options), and that the database user has full DBA rights. The lack of an error message is particularly frustrating. Do you have any ideas what the problem is, or how to pursue it and resolve it?

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• Are the new Hewlett-Packard "Sandy Bridge"-based notebooks dispatched globally?

  - by leladax

  I'm currently trying to figure out why a European chain retailer is delaying a dv7 [remaining code number is not same with american]; it is listed in their site for several days and while ordered on Monday they still don't have it in their central storage. In an earlier call I was advised that since Intel announces the processor now it may start dispatching from the 6th. Is that true? Is HP obligated not to dispatch it before the 6th? (normally/legally or as a 'deal between gentlemen'). Does anyone know if HP dispatches normally dv7s now? Did they intentionally not dispatch them to retailers before the CES?

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• No display but video card fans spins

  - by Marc

  Since I moved my computer there's no display when I plug my screen in the video card but works fine in the mother board. I tried reseting the cmos, but I still have the same problem. The fans are spining and there's a light from the card. I tried the DVI ports and the HDMI Here's my build. I have it for 2 months and everything was working fine. Do you think it's the video card? Asus p8z68-v pro gen3 Intel i7 2600k 120 GB OCZ Agility 3 16 GB RAM Blue Corsair DDR3 Asus GTX 570 H80 Corsair liquid cooling XFX PRO750W 80Plus bronze power supply EDIT That's why And I can't push more cause the card is on this Thank you everyone! I fixed it by pushing the mobo from the other side of the case and now it fits.

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• Computer hangs on start-up, but re-start always works

  - by user10604

  I press the power switch; the fans start whirring; then precisely nothing happens. The monitor lights (I have two monitors) blink to indicate that they aren't receiving any signal - no BIOS splash screen, nothing. This scenario occurs about 80 percent of the time, the other 20 percent being normal starts. Noticing that the computer has not started properly, I press the power switch for four seconds to turn the computer off, and then I press it again to start the computer for the second time. It always starts normally the second time. Always. The power supply is a 750W from SilverStone. The motherboard is a Gigabyte P55A-UD3P. The video card is an Asus EN9800GT. There's 8 GB of RAM. I don't know what other information might be pertinent. Help!

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• Should I use UPS with my laptop to extend the battery life?

  - by Mehper C. Palavuzlar

  I recently bought a new Vaio laptop which has a 4400 mAh battery. I will use it at home most of the time, and I have an unused uninterruptible power supply (UPS). Should I remove the battery and connect my laptop to UPS? If I do that, how much does it effect the battery's life? I know that batteries stand longer when kept in half-charged in a cool place, but their lifespan decreases in time due to age effect as well. So is it worth to keep the battery out of my laptop, use a UPS instead and mount it when necessary? or should I continue to work with battery mounted?

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• What is the largest flatscreen monitor available for PC use?

  - by Avery Payne

  I'll qualify this specifically (by order of preference): must have the highest diagonal measurement, widescreen or "normal" aspect ratio doesn't matter here, just the diagonal. must have the highest resolution available, which means 72 inches of 1280x1024 won't cut it. must not have a TV tuner built into it, I'm not looking for a TV set, this is a monitor! must be available at a retail outlet that caters to the general public, i.e. Best Buy, Sears, Costco (all of these examples are in the U.S., although you can suggest something from whatever chain is in your area/nation/geography). Non-retail or non-physical venues like eBay, or businesses that only cater to other businesses, do not qualify under this requirement. I should be able to walk into this place and purchase it, not just whip up an order online. If you are unsure about this requirement, just ask yourself: can I physically see it before I open my wallet and purchase it?

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• Multiple IPs from one router

  - by ergoen

  I would like to know if it is possible (and if so, how) to configure a router running dd-wrt (or openwrt) to supply connected devices with two ip addresses. The network looks like this: [Internet] | [Router] | | [Comp1] [Comp2] ... My ISP provides me with enough public IP adresses to give all devices on my network one each. The easiest way to set that up is to just use the router as a switch. This will however lead to problems with some LAN based applications. I would still like to use Samba-shares between the computers as well as a vpn server. What I am looking for basically is if it is possible to use the router as a DHCP server for a local network (let's say giving IP adresses 192.168.1.xx to connected computers) while at the same time passing through public IP addresses to each as well?

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• Nice way to show Powerpoints and Video

  - by kamikatze

  I'm looking for a sleek way to display Powerpoint presentations and video footage in sequence. Embedding video in .ppsx is not something i want to do, reasons are plenty (video footage being VC-1 1080p would be the first). Is there a media player (needs to run on win32) capable of playing both formats? My hackish way of doing this would be a .cmd with powerpnt.exe bobloblaw.ppsx mplayer.exe -fs video.wmv pwoerpnt.exe whitepowerbill.ppsx and so on Of course, this has a lots an lots of drawbacks, including begin really hard to break out of the chain :) Thanks a lot.

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• Can't get iptables firewall working correctly

  - by Jay

  I'm setting up a new Centos 5.6 system and can't get my iptables firewall to work correctly. it won't let me use SSH through it. I'm new to Centos but not to Linux or iptables. I've been removing things until I have isolated the problem. I set up the firewall with a default ACCEPT rule for the INPUT chain. I can connect through to the server fine. If I change the command to only allow traffic from the interface connecting to my trusted network it stops working. Working: iptables -A INPUT -s 0/0 -d 0/0 -j ACCEPT Failing: iptables -A INPUT -i eth0 -s 0/0 -d 0/0 -j ACCEPT I've double checked the ip address I'm using corresponds to eth0 using ifconfig. Any ideas where I went wrong?

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• How do I change the canvas size of a PNG with ImageMagick (GraphicsMagick)? (How to pad with transparency?)

  - by Pistos

  Alternatively: How do I take a non-square PNG and "fill out" the "rest" of the image with transparency so that the resulting square image has the original image centered in the square? ULTIMATELY, what I want is to take any image of any GM-supported format of any size, and create a scaled-down PNG (say, 40 pixels maximum for either dimension), with aspect ratio maintained, transparency-padded for non-square original images, AND with an already-prepared 40x40 PNG transparency mask applied. I already know how to scale down and keep aspect ratio; I already have the command for applying my composite. My only missing piece is square-alizing non-square images (padding with transparency). Single command preferred; multi-command chain acceptable. (edit) Extra info: Here's the composite command I'm using: gm composite -compose copyopacity mask.png source-and-target.png source-and-target.png where mask.png has white pixels for what I want to keep of source-and-target.png and transparent pixels for what I want to remove (and become transparent) of source-and-target.png.

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