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• Second display freaks out when waking from sleep

  - by inkedmn

  I have two laptops, an older white MacBook and a brand new Macbook Pro. When either computer is on my desk, I connect it to a second, widescreen display (Acer, a couple years old, uses DVI). The Macbook connects via mini DVI and the MBP connects via mini displayport. When the Macbook is connected and everything goes to sleep, I'm able to wake the machine and both displays in the normal way and everything is fine. Sometimes, when waking the MBP, the laptop and primary display are fine, but the second display shows a bunch of static. If I restart the display, everything's fine. This probably happens 70% of the time when the MBP goes to sleep while connected to this display. Any idea what could be causing this?

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• Run non-interactive script in single user mode

  - by Jed Daniels

  Is it possible to run a "startup" script when booting into single user mode? I need to be able to boot into single user mode, run my script, then reboot into multiuser mode without any human interaction. I've done a bunch of research and can't find anything that is clear on the topic, although of course I could replace something else that does run with a wrapper that also launches my script, but I'd prefer to do it in some official way. Ideally, the solution will work in FreeBSD 6 and up, but I'm willing to accept only new versions if it just doesn't exist in the older revs.

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• Is it possible to upload only files that have been updated into a server?

  - by kamikaze_pilot

  Hi guys, Suppose I have a server accessible via FTP and it hosts websites Suppose I want to edit the website locally so it wont affect the site live, and suppose I edit a whole bunch of files, and I don't want to deal with the hassle of keeping track of which files I've edited all the time... Once I finished editing I want to upload it to the server via FTP....is there some FTP software that automatically detects which files have been edited and have only those files uploaded and overwritten rather than having me manually choosing the files I've edited (and hence having to keep track of edited files) or have me upload the entire site which is a waste of time thanks in advance

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• is there a way to automate changing filenames in <link> , <script> tags

  - by nepsdotin

  when we use Expires header for text files like js, css, contents are cached in the browser, to get new content we need to change in the html file the new names in the link and script tag. When we add changes. How can we automate it. I may have some bunch of html files in multiple folders also in subdirectories. There would be a text file filelist.txt OldName NewName oldfile1-ver-1.0.js oldfile1-ver-2.0.js oldfile2-ver-1.0.js oldfile2-ver-2.0.js oldfile3-ver-1.0.js oldfile3-ver-2.0.js oldfile4-ver-1.0.js oldfile4-ver-2.0.js The script should change all the oldfile1-ver-1.0.js into oldfile1-ver-2.0.js in the html, php files I would run this script before i start uploading. Finally the script could create a list of files and line number where it made the update. The solution can be in PERL/PHP/BATCH or anything thats nice and elegant

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• NAT Error Message - Usage limit exceeded

  - by Kato

  Trying to configure a port to use for Vuze. Using the NAT/server port test, I was getting a message saying the connection timed out, the port was probably closed. I went back and made sure to open the specific port on my router, firewall, etc, but now I'm getting "NAT Error - Usage limit exceeded (173.32.41.24:0). I'm on a mac pro running leopard, trial versions of intego netbarrier and virusbarrier. Network utilities and netbarrier both claim the port is open. I've tested a bunch of other ports, but all give the same message.

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• Lost Page Write I/O Errors on CentOS LVM setup

  - by Gregg Leventhal

  I have a CentOS 6 box with LVM setup and one of the PVs is a USB disk (I know). One of them is getting the error: Oct 30 10:57:07 alpha01 kernel: lost page write due to I/O error on dm-3 Oct 30 10:57:07 alpha01 kernel: Buffer I/O error on device dm-3, logical block 4 Which is causing problems with all of the LVs on it. pvs shows the PV as unknown device. I can ls to the logical volumes and they show up in lvdisplay, but first I get a bunch of IO errors. I made sure the cables are secure between the USB drive. What should I do to get this back up and running for the meanwhile? Should I unmount each LV and run an fsck.ext4 on each one like fsck.ext4 -y /dev/vg1/lv_logvolname ?

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• Downloading content greater than 2000 bytes from local network hangs in browser on Windows XP

  - by artplastika

  We have web application that runs under Tomcat in a local network. Our customers experience strange problem using this web application. Let's say Tomcat server runs on host1 and we open webapp URL in browser on host2. Any browser on host 2 starts opening page and downloading of content "hangs" for hours. We've made bunch of experiments and found that any content larger than 2000 bytes makes browser request hang. Tried in Internet Explorer 8, Opera 12, Firefox. At the same time if user opens website from internet, it works. Opening webapp from the same host1 where Tomcat is running works normally. Local network is organized with D-Link DGS-3120-48TC switch. Additional info. During experiments we've noticed XP Tweaker installed on hosts. Network settings from that tool: MTU is manually set to 1500 RWIN = 14600 Support of TCP frames larger than 64 KB is on Time to Live = 32 SACK is on

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• Help with putting Ubuntu on an old laptop

  - by alex

  Hi I dusted off an old laptop from 2004 which has Windows XP. I want to put Ubuntu on it. So, I downloaded the CD image and then burnt it to a disc. I tried starting the laptop and booting from CD but no luck. The CD drive doesn't work in the laptop anymore! So I shared the files on the local server and then accessed the wubi.exe file from within Windows XP, and it proceeded to download something else and install. It then asked me to restart, which I did. I now have a folder C:\ubuntu with a bunch of files in it. How do I get the option to boot to Ubuntu? Sorry, I have never installed a Linux variant before! Many thanks

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• Home movie video browser

  - by Jim Hunziker

  I have a bunch of home movies that don't have useful filenames because they came straight off the camera. (I'm using Vista 64, by the way.) Picasa is pretty good for browsing through them and watching them, but it doesn't use my video card for rendering the videos. My CPU gets pegged at max usage, and full screen barely works. Windows Media Player or Quicktime works fine. Is there another application (like Picasa) that can be used for browsing through movies that both uses my video card and shows thumbnails of all the movies in my collection? I'd rather have something nicer than Windows Explorer. (The movies are h.264 AAC 1280x720.)

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• How do I update the memberOf attributes of existing objects after adding the OpenLDAP Reverse Group Membership Maintenance overlay?

  - by mss

  This is a follow-up to this question: I added the memberof overlay to an existing OpenLDAP 2.4 server. Now I want to update the existing user objects. For new group memberships, the memberOf attribute is updated correctly. But I have a bunch of existing groups which aren't updated automatically. I could remove all users from their groups and re-add them to make sure these entries are in sync. Since this is a Univention Corporate Server which does a lot of magic when you modify the LDAP, I don't want to risk breaking my directory. Is there a way to trick the overlay to update these operational attributes?

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• Intel SASWT4I SAS/SATA Controller Question

  - by Joe Hopfgartner

  Hey there! I want to assemble a cheap storage sytem based on the Norco RPC-4020 Case. When searching for controllers I found this one: Intel® RAID Controller SASWT4I This is a quote form the Spec Sheet: Scalability. Supports up to 122 physical devices in SAS mode which is ideal for employing JBODs (Just a Bunch Of Disks) or up to 14 devices in RAID 0, 1, 1E/10E mode through direct connect device attachment or through expander backplane support. Does that mean I can attatch 14 SATA drives directly to the controller using SFF-8087 - 4x SATA breakout cables? That would be nice because then I can choose a mainboard that has 6 Onboard SATA and i can connect all 20 bays while only spending 155$ on the controller and like another 100$ on cables. Would that work? And why is it 14 and not 16 when there are 4 Ports? I am really confused about all the breakout/fanout/(edge-)expanding/multiplying/channel stuff...

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• What is a good router linux distro and WHY?

  - by madmaze

  I have a rather large home network with many clients. Ive decided I want to build a Linux based router, I have an 1.6Ghz dual-core(atom) system kicking around which will be re-purposed. So ive looked at a bunch of specific router distros but cant decide. I have also looked into taking a Ubuntu server or FreeBSD install and adding needed packages. So question is, what is the best router-Linux or base Linux distro and why? resources appreciated.

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• aws s3 works with script but not on cron

  - by user3800017

  guys.. My first post ! hope not the last .. I have few bunch of servers on aws ec2 platforms. I made a simple script to backup my custom logs on their s3 storage bucket. The problem is the script works fine .. but I tried to add it to the crontab. And the script executes but not the s3 sync/mv part ! Here is my code: NOW=$(date "+%b_%d_%Y") MY_HOSTNAME=`uname -n` mv /opt/req/req* /opt/req/bkup/ mv /opt/response/res* /opt/req/bkup/ cd /opt/req/bkup/ tar -cvf ${MY_HOSTNAME}_req_bkup_${NOW}.tar re* rm *.txt aws s3 mv /opt/req/bkup/* s3://req `

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• ASA5500 series logging for management interface in transparent mode

  - by ANervousTwitch

  i have a cisco asa5520 in transparent mode. the interface is on the same subnet as some windows machines, which are generating a lot of broadcast traffic that is filling up the logs. is there any way to have it not log that its blocking those packets? its a bunch of these messages: "through-the-device packet to from management-only network is denied: udp src..." im also seeing some of those zeroconf requests that id like to drop logging for. i tried to just put a rule on the management interface, but apparently thats not allowed.

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• supervise/daemontools conflicts with apache -D FOREGROUND

  - by Kevin G.

  Hoping that somebody can help us understand this behavior. We've got a bunch of daemontools services under /etc/service/. One of the services controls apache, and the run script has this in it. exec envdir /var/lib/supervise/wwwproxy/env setuidgid root bash <<-BASH ulimit -n 8192 # also increase the running user's file descriptor limit exec apache2 -f /path/to/demo_apache2.conf -D FOREGROUND BASH We were having the problem that svc -d /etc/service/* actually had the effect of restarting all the services, it didn't take them down. We finally tracked it down to that one service, and found that svc -d /etc/service/apache2 would bring up any other service was down, including itself. Changing FOREGROUND to NO_DAEMONIZE fixes the behavior, but we'd really like to understand what's going on. Can anybody explain why an svc -d on one service would bring an other service up? Thanks for any clue you can offer.

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• Writing to external drive runs out of space prematurely

  - by steve

  I have a USB 2.0, 500 GB HDD. I am writing a bunch of data to it, that I previously recovered from the drive. I have formatted the drive in exFAT, since the drive will be used with Windows and OSX. At first, I tried using Windows explorer to move the files over to the drive (about 160 GiB worth) but after copying about 30% of the data (according to TeraCopy), Windows Explorer reported the drive as out of space, and that it was completely full. WinDirStat only showed the size of data that had been copied over... Where did this extra space go? Why is there a 300+ GiB discrepancy between the usage reported by the files and what Explorer sees?

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• Terminal Server/Win2K3: Users can't write to their My Documents or Temp folders

  - by Tim Sullivan

  I have a situation where a bunch of users are running our software on a Terminal Services machine on Windows 2003 Server. I've removed most permissions from the User group, but made sure they all have the appropriate permissions for their own application folders, as well as for their Documents and Settings folder. For some reason, even though everything seems to be set up properly, users can't create or delete files from their My Documents, Temp or other D&S folders. Whatever could be going on? I thought this was going to be straightforward, but clearly it's not! :-) Thanks for any help!

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• mod_rewrite for specific domains in a mappings file

  - by scott

  I have a bunch of domains that I want to go to one domain but various parts of that domain. # this is what I currently have RewriteEngine On RewriteCond %{HTTP_HOST} ^.*\.?foo\.com$ [NC] RewriteRule ^.*$ ${domainmappings:www.foo.com} [L,R=301] # rewrite map file www.foo.com www.domain.com/domain/foo.com.php www.bar.com www.domain.com/domain/bar.com.php www.baz.com www.domain.com/other/baz.php.foo The problem is that I don't want to have to have each domain be part of the RewriteCond. I tried RewriteCond %{HTTP_HOST} ^www\.(.*) RewriteRule (.*) http://%1/$1 [R=301,L] but that will do it for EVERY domain. I only want the domains that are in the mappings file to redirect, and then continue on to other rewrites if it doesn't match any domains in the mappings file.

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• Online File Sharing that acts just like LAN shared drives, etc.

  - by Dayton Brown

  Hi All, Have a small business client that wants to move their current file share to the web. Specs are as follows, 20 to 30 GB of space, file sizes are normal (nothing more than 50 to 100 mb) 3 users ideal solution would be exact same functionality as windows explorer. CHEAP!!! But not super cheap. I would like to keep it around $20 per user per month. I've explored a bunch of solutions, but they are all a bit on the complicated side. Thanks in advance for the recommendations.

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• how to design network for connectivity between private and corporate LANs?

  - by maruti

  there is a bunch of servers connected to shared storage in a private LAN (10.x.x.x). this privateLAN is managed by a windows server (DHCP, DNS and directory services) these hosts need to be from outside of the datacenter Eg. Remote desktop. can the NIC2 on each of the hosts be connected to the other public LAN (compromising speed or security? what are improtant considerations: additional hardware? like switches? routing&DNS software? currently available hardware : Dell Powerconnect 6224 switch .... planning this for storage network. software: windows 2003 server for DHCP, DNS, A/D ? would it be more flexible to use Linux distributions like IPCOP, Untangle etc? all that I am looking for is good isolation between private and other networks, avoid DHCP, DNS, AD clashes.

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• Can DRM-free Kindle books still be read on the Kindle app for PC?

  - by verve

  I bought a bunch of Kindle books which I read in the Kindle for PC app but it's too restrictive so I want to try to convert them into another format but I'm worried whether the books will no longer function in the Kindle for PC app? Once you convert a Kindle book will it lose formatting etc.? Can it be re-converted back into the Kindle format once it has been converted? And, more importantly will Kindle book with a broken DRM work in the PC app? Win 7 Pro. Kindle for PC 1.8.3.

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• How to quickly save what is currently shown in cmd.exe to a file

  - by Zeiga

  I am asking if there is a quick way/command to save the current standard output from cmd.exe or powershell to a file. For example, I have run a bunch of commands in cmd.exe which generating like hundreds of lines of standard output. Ideally, I am looking for a single command to do "select all" and save to a file automatically. Note: I've read this. But I don't want to change my original commands, so "" or "" redirection cannot be used in this scenario. Thanks.

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• What are the essential considerations for setting up systems in a location with unreliable power?

  - by dunxd

  I deal with a lot of remote offices located in parts of the world where the local grid power supply is unreliable. Power can go off anytime with no warning, with outages ranging from minutes to days Power fluctuation is wild, with spikes and brown outs Currently the offices will have some or all of the following: A generator, with an inverter, or some sort of manual switch A big UPS or battery array connecting a number of devices Several smaller APC UPS with computers attached Low cost Voltage Regulators sometimes connected between mains and UPS or device. I know that each of these things needs to be appropriately rated for the equipment to which it is connected (although I am not sure how to calculate the correct rating). The offices will generally have the following equipment (in varying quantities): some sort of internet connection device (VSAT router, ADSL modem, WiMax router) Cisco ASA 5505 firewall a bunch of PCs printers one server I don't seek to replace the advice of an electrician, but in some of these locations they only answer the questions you ask them, so I need to make sure I have enough understanding of the essentials to protect equipment from damage, and possibly get through some power cuts.

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• How can I upgrade Ubuntu from 9.10 to 10.04 on a netbook with a 4GB root partition?

  - by Blorgbeard

  I have an Asus EeePC 901, running Ubuntu 9.10. I'd like to upgrade it to 10.04. I don't want to reinstall, since I have a bunch of scripts and programs all set up. However, when I attempt to upgrade using sudo apt-get dist-upgrade, I get an error asking me to free up another ~600MB on /. My / is mounted on sda0, which is a 4GB SSD. I do not have 600MB worth of deletable stuff on /. I've emptied my trash, and done apt-get autoremove and apt-get clean. I do have plenty of space in /home, mounted on sda1 (a 16GB SSD). Is there some way I can tell apt-get to use a different download/temp directory?

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• Is it wise to use SSHDs (Solid state hybrid drives) on a server?

  - by Seb

  I have a bunch of servers with very heavy I/O that currently use SATA3/SAS drives, but do suffer from I/O wait on the SATA drives, and I have just been alerted to the existence of SSHDs which cost the same for 1TB as the 1TB SATA drives that we currently use. However, previously (until Seagate shipped their first 3.5" SSHD in March) they seemed to be exclusively for Netbooks/Notebooks, which leads me to suspect they're not exactly built for the heavy I/O they'd be in for with my servers. So, would an SSHD give me a performance boost over my SATA3 drives in a heavy I/O environment (such as multiple very large high speed file transfers) or is it best to stick with SATA3 with I/O wait??

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