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• Port Forwarding Using iptables on Ubuntu

  - by user141610

  This is the scenario. I have configured a web-server in MUX. Now I want to access that web-server from Internet. Ubuntu box has two interfaces, One is connected to WAN (Public IP) and another one is connected to MUX (Private IP). MUX has no option to insert default gateway. iptables -t nat -A PREROUTING -p tcp -i eth0 -d 103.x.x.x --dport 8001 -j DNAT --to-destination 192.168.1.2:8080 iptables -A FORWARD -p tcp -d 192.168.1.2 --dport 8080 -m state --state NEW,ESTABLISHED,RELATED -j ACCEPT It does not work. Thanks...

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• NFS users getting a laggy GUI expierence

  - by elzilrac

  I am setting up a system (ubuntu 12.04) that uses ldap, pam, and autofs to load users and their home folders from a remote server. One of the options for login is sitting down at the machine and starting a GUI session. Programs such as chormium (browser) that preform many read/write operations in the ~/.cache and ~/.config files are slowing down the GUI experience as well as putting strain of the NFS server that is causing other users to have problems. Ubuntu had the handy-dandy XDG_CONFIG_HOME and XDG_CACHE_HOME variables that can be set to change the default location of .cache and .config from the home folder to somewhere else. There are several places to set them, but most of them are not optimal. /etc/environment pros: will work across all shells cons: cannot use variables like $USER so that you can't make users have different new locations for .cache and .config. Every users' new location would be the same directory. /etc/bash.bashrc pros: $USER works, so you can place them in different folders cons: only gets run for bash compatible shells ~/.pam_environment pros: works regardless of shell cons: cannot use system variables (like $USER), has it's own syntax, and has to be created for every user

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• Making document storage in Sharepoint a breeze (leave the Web UI behind)

  - by deadlydog

  Hey everyone, I know many of us regularly use Sharepoint for document storage in order to make documents available to several people, have it version controlled, etc.  Doing this through the Web UI can be a real headache, especially when you have multiple documents you want to modify or upload, or when IE isn’t your default browser.  Luckily we can access the Sharepoint library like a regular network drive if we like. Open Sharepoint in Internet Explorer (other browsers don’t support the Open with Explorer functionality), navigate to wherever your documents are stored, choose the Library tab, and then click Open with Explorer. This will open the document storage in Explorer and you can interact with the documents just like they were on any other network drive J  This makes uploading large numbers of documents or directory structures super easy (a simple copy-paste), and modifying your files nice and easy. As an added bonus, you can drag and drop that location from the address bar in Explorer to the Favorites menu so that it’s always easily accessible and you can leave the Sharepoint Web UI behind completely for modifying your documents.  Just click on the new favorite to go straight to your documents.   You can even map this folder location as a network drive if you want to have it show up as another drive (e.g N: drive). I hope you found this as useful as I did

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• How to reduce 3rd party repository priority in apt

  - by carlosz

  I'm using Debian Testing together with the Deb Multimedia (previously Debian Multimedia) repository for testing. I want to reduce the priority of the deb-multimedia packages so it only installs certain packages. I've tried with: Package: * Pin: release o="Unofficial Multimedia Packages" Pin-Priority: 10 and Package: * Pin: origin "mirror.home-dn.net" Pin-Priority: 10 But neither works, the packages still have the default priority (500). The Release file from the repository looks like this: Archive: testing Version: None Component: main Origin: Unofficial Multimedia Packages Label: Unofficial Multimedia Packages Architecture: amd64 What am I doing wrong? Edit: It worked when I used the Version information instead: Package: * Pin: release v=None Pin-Priority: 10 But I still don't know the reason the other filters didn't work.

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• Select firefox search result

  - by Nicolas C.

  I am working on a daily basis on a web application with very large menus. Also doing lots of other Excel manipulations, copy and pasting, etc., I am quite fond of keyboard shortcuts as much faster than using the mouse to point, double-click and then going back to my keyboard etc. Hence, my question is quite simple, does anyone know if there is any shortcut under Firefox which would let me actually select (and not highlight) in my web page the search result so that I can for instance do the following manipulation sequence? [Ctrl]+[F] type the search string, for instance 'regional_unit' the missing shortcut to actually select in my page the string which is currently highlighted thanks to the search feature of FF [Space] or [Enter] key to activate the web element which in my case would systematically correspond to a link or button, etc. May be there would be an addon replacing the default search feature, I don't know... I tried to look over the internet but with the words I am using for this investigation, I do not get relevant search results under Google :(. Thanks a lot

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• OpenVZ kernel panic

  - by GtoXic

  I recently installed OpenVZ on my VMWare box (To do some testing) and I get the following: https://www.dropbox.com/s/p38btkv5j84bvsh/Capture.JPG the GRUB config is as follows: # grub.conf generated by anaconda # # Note that you do not have to rerun grub after making changes to this file # NOTICE: You have a /boot partition. This means that # all kernel and initrd paths are relative to /boot/, eg. # root (hd0,0) # kernel /vmlinuz-version ro root=/dev/VolGroup00/LogVol00 # initrd /initrd-version.img #boot=/dev/sda default=0 timeout=5 splashimage=(hd0,0)/grub/splash.xpm.gz hiddenmenu title OpenVZ (2.6.32-042stab057.1) root (hd0,0) kernel /vmlinuz-2.6.32-042stab057.1 ro root=/dev/VolGroup00/LogVol00 sysfs.deprecated=1 initrd /initrd-2.6.32-042stab057.1.img title CentOS (2.6.18-238.el5) root (hd0,0) kernel /vmlinuz-2.6.18-238.el5 ro root=/dev/VolGroup00/LogVol00 initrd /initrd-2.6.18-238.el5.img

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• .NET XPath Returns No Results

  - by Stacy Vicknair

  When using XPath in .NET one of the gotchas to be aware of is that all namespaces must be named, otherwise you’ll end up with no results. Default namespaces that are specified with xmlns alone still need to be recognized in the XPath query! Say I had a bit of XML like what is returned from the QueryService web service in Sharepoint: 1: <?xml version="1.0" encoding="UTF-8"?> 2: <ResponsePacket xmlns="urn:Microsoft.Search.Response"> 3: <Response> 4: <Range> 5: ... 6: <Results> 7: <Document xmlns="urn:Microsoft.Search.Response.Document" relevance="849"> 8: ...   When consuming and navigating this response with XPath it is necessary to name all namespaces. Then those named namespaces must be used in reference to the individual element being requested (i.e. doc:Document). In VB: 1: Dim xdoc = new XPathDocument(reader) 2: Dim nav = xdoc.CreateNavigator() 3: Dim nsMgr = new XmlNamespaceManager(nav.NameTable) 4: nsMgr.AddNamespace("resp", "urn:Microsoft.Search.Response") 5: nsMgr.AddNamespace("doc", "urn:Microsoft.Search.Response.Document") 6:  7: Dim results = nav.Select("//doc:Document", nsMgr)   In C#: 1: var xdoc = new XPathDocument(reader); 2: var nav = xdoc.CreateNavigator(); 3: var nsMgr = new XmlNamespaceManager(nav.NameTable); 4:  5: nsMgr.AddNamespace("resp", "urn:Microsoft.Search.Response"); 6: nsMgr.AddNamespace("doc", "urn:Microsoft.Search.Response.Document"); 7:  8: var results = nav.Select("//doc:Document", nsMgr);

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• How can I extend the desktop onto an external monitor/projector?

  - by hellocatfood

  I've plugged in a projector into my laptop and I'm attempting to extend the desktop onto it (so that I can run a full screen app on the projector and have the controls on my laptop). I'm able to mirror the screens effectively (it does this by default) but I can't extend it. When I untick "Mirror screens" and press apply it asks me to log out and then back in again but it goes back to mirroring the screens. I'm able to extend desktop on to my external monitor at home, just not this projector. Is there a manual way or other way to do this other that through Monitors setting? My computer model is Dell Studio 1555: Pentium Dual Core T4300(2.1GHz,800MHz,1MB), 4096MB 800MHz DDR2 Dual Channel, 512 MB ATI Mobility RADEON HD 4570 using the ATI proprietary driver. My screen resolution is 1366x768 (16:9) The projector that it wont connect properly is a Hitachi CPX3. That page specifies that it's especially designed for projectors that use 16:10 aspect ratio, but considering my external monitor at home uses 4:3 should the differences in aspect ratio matter or be causing this error?

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• What is the value/cost of enabling "spread spectrum clocking" on my hard drives?

  - by Stu Thompson

  I'm building up a biggish NAS box (10x WD RE4 2TB SATA RAID10) and ran into some problems. During the course of my research, debugging, investigations, etc, I discovered a jumper on the physical drives labeled "spread spectrum clocking". After some googling about this on teh internets, it seems to be a feature that some suggest (without reference or explanation) enabling in 'a storage configuration' that makes the drive less sussesptable to EMI. But why? I've got three core questions: Why is this feature not enabled by default? What are the actual benefits? Are there any costs?

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• See the exciting new features available for iProcurement and Sourcing with 12.1.3 Rollup Patch 14254641:R12.PRC_PF.B!

  - by user793044

  See the exciting new features available for iProcurement and Sourcing with 12.1.3 Rollup Patch 14254641:R12.PRC_PF.B! Functional Area New Feature Note Reference Sourcing Suppliers can now accept Terms and Conditions to comply with the buyer's Non-Disclosure Agreements (NDA). The PDF generation process has been enhanced to provide faster generation of negotiation PDFs containing large amounts of data. Note 1499944.1 Sourcing New features From Procurement RUP Family R12.1.3 September Update 2012: Accept Terms and Conditions to Comply With NDA iProcurement Users can now do the following: Requesters can specify the GL date (encumbrance date) for each distribution against a line at the time of creating requisitions.  Enter an Accounting Date on and Procurement Requisition, if Dual Budgetary Control is enabled for Purchasing. Choose a Favorite Charge Account to override your default charge account, using the Preferences page.  Buyers can update the unit price, suggested supplier, and site details while requesting a catalog item (inventory item) that is not linked to a blanket purchase agreement. Note 1499911.1 iProcurement New Features From RUP Family R12.1.3 September Update 2012: GL/Accouting Date,PO_CUSTOM_FUNDS_PKG.plb,Price and Supplier Update For new features across all the Procurement product groups and information about applying Patch 14254641 see Note 1468883.1.

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• Make Safari 5's location bar more like Omnibox or AwesomeBar

  - by Lri

  When searching for history or favorites, the search phrase has to be an exact substring of the URL or title. For example super awesome wouldn't match this page. Can the criteria be made more liberal? When an item that was matched by its title is selected from the suggestion list, the title is filled in in place of the URL. The filled in part sometimes starts from the middle of a URL or a title. Can either of these behaviors be changed? Can you redirect unresolved addresses to the default search engine or a custom URL? In Firefox you can go to about:config and set keyword.URL to http://www.google.com/search?btnI&q=. Can you remove or hide the web search field? In Camino, Cruz, and Fluid it can be resized to zero width.

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• Make a socket as an user but make it readable and writable by another

  - by user1598585

  I have a software that is run under user A, this software creates a socket in /sockets and the socket should be readable and writable by user B. I have tried setting the directory to have ownership A:A or A:B but when user A creates the socket, it ends up with uid A and gid A. Using ACLs has not helped so far, the default mask is preventing the rights to be effective. rw permisions for B will always turn into jusr r. If what I make is not a socket it will work fine. How can I best accomplish this task? (It is for a web-server where the web-application makes the socket and the web-server software forwards requests to it)

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• 13.10 Saucy login issues; black screen, loop, and freeze

  - by user135598

  Once upgraded to I 13.10 I was not able to get past the login screen. I had the black screen. Also; I can not log on with low graphics mode from recovery either. It makes no difference if I try default graphics driver or not. Then after running sudo install -f from recovery root prompt I got a login loop. I have purged fglrx, fglrx-legacy, and nvidia-current. I updated my repository with xorg-edgers and reinstalled nvidia-current. Now it semi-freezes at the login screen when I try to log on as my normal user. I say 'semi' because I can still use my mouse to click on the upper right hand Ubuntu logo and Shut Down or Restart the PC. I still cannot log on with my user name, but I can through the Guest login. While logged in as Guest I added a new user account with administrative privileges. I CAN log into this account without problem and from here am able to see that my .dmrc file in my original account reads: [Desktop] Session=XBMC I have changed 'Session=XBMC' to 'Session=ubuntu' and rebooted, but to no avail. The file resets itself and makes a backup of my changes. Any help would be greatly appreciated.

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• Organize code in Chef: libraries, classes and resources

  - by ColOfAbRiX

  I am new to both Chef and Ruby and I am implementing some scripts to learn them. Now I am facing the problem of how to organize my code: I have created a class in the library directory and I have used a custom namespace to maintain order. This is a simplified example of my file: # ~/chef-repo/cookbooks/mytest/libraries/MyTools.rb module Chef::Recipe::EP class MyTools def self.print_something( text ) puts "This is my text: #{text}" end def self.copy_file( dir, file ) cookbook_file "#{dir}/#{file}" do source "#{dir}/#{file}" end end end end From my recipe I call both methods: # ~/chef-repo/cookbooks/mytest/recipes/default.rb EP::MyTools.print_something "Hello World!" EP::MyTools.copy_file "/etc", "passwd" print_something works fine, but with copy_file I get this error: undefined method `cookbook_file' for Chef::Recipe::EP::FileTools:Class It's clear to me that I don't know how to create libraries in Chef or I don't know some basic assumptions. Can anyone help me, please? I am looking for a solution of this problem (organize my code, libraries, use resources in classes) or, better, a good Chef documentation as I find the documentation very deficient in clarity and disorganized so that research through it is a pain.

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• Another hibernation question

  - by GeekOfTheWeek

  I installed Ubuntu on my Windows 7 Sager laptop using Wubi. Hibernate (i.e. suspend to disc) is not an option from the power icon, only suspend, shutdown, etc. Hibernate is also not an option from my battery/lid close options. I understand that hibernation is disabled by default in Ubuntu 12.04. I tried running pm-hibernate but I get the following message: Looking for splash system... none s2disk: Snapshotting system and then the computer just hangs with a black screen. According to the documentation here if this fails then I can't enable hibernate but it offers no help in making pm-hibernate succeed. Could swap be my problem? It looks like I have very small swap: user@ubuntu:~$ cat /proc/swaps Filename Type Size Used Priority /host/ubuntu/disks/swap.disk file 262140 0 -1 The advice on SwapFaq is only for the author's set up (e.g. I don't have an Ubuntu install disk since I used Wubi) and he says that 'INFO: This will not work for 12.04, resume from hibernate work differently in 12.04.' Any advice? I really need to get hibernate working to use my laptop as a, er, laptop. Thanks

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• Difference between key_buffers and recommendation

  - by Typeoneerror

  I'm looking to add a bit of memory to MySQL on a Linode VPS server on which I've got a small facebook (canvas app) PHP app using MySQL running. I'm not super familiar with MySQL optimization so I'm hoping to find a simple answer. I think I want to increase the key_buffer size (the default is 16M) to something like 32M to start, but I'm not sure if I need to tweak anything else as well. All I've done so far is increase the query_cache_size to 32M from 16M. There's also key_buffer under [mysqld] and key_buffer under [isamchk]. What are the difference between those two? If I have Linode 2048MB (http://www.linode.com) VPS, what would recommend I set the buffers to? I don't expect this site to have tons of visitors, but I'd like it to be as optimized as possible. Definitely way more heavy on the database access than PHP and very few HTTP requests.

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• Solution to Manage and Monitor (Ubuntu) Machines

  - by Elmar Weber

  I'm looking for a tool like Canonical (system management and monitoring for Ubuntu) that is Open Source and free. The goal is to manage a dozen or so KVM machines for private testing purposes. I know of puppet and munin or RHQ as separate tools to manage and monitor, but I'd prefer something integrated. Any tips? Basic requirements would be: system package management and update (individual selection for each managed node) configuration of basic system services (Users, NFS, cron, ideally also Apache) monitoring (charting of system resources, disk, io, memory, etc) and alerting, ideally a default configuration with sensible values for alerts

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• How do I add client computers to a Windows SBS 2008 domain?

  - by Jonas

  We have a LAN and the router is the DHCP server. We have a server with Windows SBS 2008, it has the IP address 192.168.1.2 while the router has the IP address 192.168.1.1. I have set "DNS Relay" on the router to 192.168.1.2. I have tried to add a client computer to the SBS domain by visiting http://connect from the client computer. But that page doesn't exist. I can visit http://192.168.1.2/ then the default startpage for IIS7 is shown. I'm logged in as a local Administrator on the computer that I tries to add to the domain. How do I add the client computer to the SBS 2008 domain? The router is an D-Link DFL 200, and I have now set the "DNS Relay" to "Use address of LAN interface" instead of a specific IP-address. But it doesn't work.

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• Setting font size of Closed Captions on iPhone

  - by forthrin

  Does anyone know if it's possible to control the font size on videos played in the built-in iPhone video player? The subtitles (or "Closed Captions") that are there by default are rather small. None of the attempts below change the font size at all: ffmpeg -y -i in.mkv -i in.srt -map 0:0 -map 0:1 -map 1:0 -vcodec copy -acodec aac -ab 256k -scodec mov_text -strict -2 -metadata title="Title" -metadata:s:s:0 language=eng out.mp4 sudo port install mplayer +mencoder_extras +osd mencoder in.mkv -sub in.srt -o out.mp4 -ovc copy -oac faac -faacopts br=256:mpeg=4:object=2 -channels 2 -srate 48000 -subfont-text-scale 10 -of lavf -lavfopts format=mp4 mp4box -add output.ttxt:hdlr=sbtl:size=50 output.mp4 Should we assume that iOS simply disregards size information, or has anyone ever seen styling of subtitles actually work on iOS? Anyone know how to make this work?

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• Use Ultracopier / Teracopy with Ditto Clipboard Manager

  - by drrtyrokka

  I really like the tool Ultracopier because of the copy acceleration and additional details on Windows. Also the ability to pause the copy is really helpful. Additionally I want to use a clipboard manager such as Ditto. The problem here is, when I run Ditto, my system won't use the Ultracopy tools for copiying anything It uses the windows default. How can I use the advantages of both tools? Is there any similar tool (perhaps a single tool) which gives me these options?

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• ubuntu 12.10 Lenovo b570e, WiFi connected but not working

  - by koogee

  I'm running ubuntu 12.10 liveUSB on a lenovo b570e. It has an atheros wifi card that connects with my home network but I can't browse AT ALL. My network is multiple clients --> router --> isp modem --> Internet I can ping my router (192.168.0.1) but not my isp's modem(192.168.15.1). I have 3 other computers connected to the same router that are working fine (infact i'm posting from one) ping -c 3 google.com unknown host google.com ping -c 3 8.8.8.8 shows 100% packet loss I think its some networking issue. I tried directly connecting it to the router via ethernet cable but same issue. It gets an ip, shows LAN connected but can't browse. If I connect it directly to the isp modem via ethernet cable it starts working fine. Connection Information shows: Interface: 802.11 wifi (wlan0) driver: ath9k security: wpa/wpa2 speed: 150mb/s ip: 192.168.0.106 broadcast: 192.168.0.255 subnet:255.255.255.0 default route: 192.168.0.1 primary dns: 192.168.15.1 i have restarted the router and modem many times. Rebooted the LiveUSB many times.

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• Control cell reference increment when dragging a forumula in Libre Office Calc (3.5)

  - by Chuck

  Using Libre Office Calc (3.5) and have a question. When copying a formula that references cells into multiple empty cells the default is to increment each cell reference by one column or row, depending on the direction that the formula is being drug. A formula '= 1 + A1' drug horizontally changes to '= 1 + B1' when pulled one cell to right and '=1 + A2' when pulled one cell down. Is there a way to control increase the increment of the referenced cell? Is is possible to have a formula '= 1 + A1' that effectively changes to '= 1 + A3' when drug down one cell, '= 1 + A5' when drug down two cells, etc? If it matters, I am trying to take a constantly updating master list of data that is organized by dates (Wednesdays and Saturdays) and create separate spread sheets for each day of the week that can be updated by only pulling down the formula into the next cell. My attempts at using the 'lookup' function, 'offset' function, and creating a sort column in Libre Office Calc are thwarted by my inability to figure out how to get around the single step increment when pulling a formula down into the next cell. Thanks

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• How does one switch tracks in Windows 8.1's XBox Music app?

  - by XBone

  XBox Music Now Playing In the XBox Music app (both app and Windows completely updated) I tried playing a folder full of MP3s from a USB HDD. In the screenshot above the track Sometimes is currently playing (indicated by the small green spectrum analyzer icon to the left). Now suppose I want to start playing the sixth track So Hard, how do I do it without pressing the Next Track button five times? Double-clicking (using touch) doesn't work and selecting the track by swiping left or right doesn't show any Play Now option in the bar that pops up from the bottom. Cannot believe the default music player app is so bad! :o

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• How do I recover my router password without resetting it?

  - by Pacerier

  I want to know the password of my router. The default username and pass isn't working. I've read this thread i forgot my wireless router password. what do i do . . however it tells me to reset the router (I do not wish to reset the router to factory settings) This is my router: Linksys Wireless-N Home Router WRT120N I'm thinking there's some way we could get the password (or bypass the need to) that we need to enter 192.168.1.1?

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• How to start Ubuntu with no working video card?

  - by ViliusK

  I have a laptop with broken video card. It has two operating systems installed - Windows 7 and Ubuntu 10.10 Desktop Edition. It has GRUB to manage which operating system to boot up. Windows is default OS. And Windows fails to boot up without video card. I'm checking with ping to the ports which are shown as used by DHCP in my router. Normal boot of Ubuntu also fails and it restarts after a while. But when I choose (blindly, but checking HDD indicator and by counting button presses when GRUB menu appears) to boot second option of Ubuntu (rescue mode) it starts and I can ping it. But when I try to connect to it through SSH, I'm getting "connection refused" error from putty. I've took out HDD from my laptop already and inserted it to WD Passport case so now I can connect it to other computer to edit configuration files. How can I check if SSH server is working? How to enable it in rescue mode? Or better, how to disable video card to be required while booting Ubuntu in normal mode?

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