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• How to connect Empathy to facebook

  - by Simanta Das

  I am a new user of Ubuntu and I want to connect empathy internet messaging with Facebook. So when I select Facebook from the list given in Online Accounts a window opens up for me to authorize access and a url opens saying: Success SECURITY WARNING: Please treat the URL above as you would your password and do not share it with anyone. Although after this nothing happens... When I open the messenger nothing comes up and in Online Accounts it still asks: Please authorize Ubuntu to access your Facebook account... but I have already given permission... Please help me out. Thanks in advance.

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• Ubuntu doesn't start and I can't login

  - by Meph00

  My ubuntu 13.04 doesn't boot anymore. Eternal black screen. If I press ALT+CTRL+F1 I see that it's stucked on "Checking battery state [OK]." I'd like to try to go with sudo apt-get install gdm but I can't login on terminal tty2, tty3 etc. They correctly ask for my nickname, then they make me wait a lot, ask for password and make me wait again. After a lot of time (... a lot) the best I could achieve was visualizing "Documentantion https://help.ubuntu.com". I can never reach the point where I can give commands. Plus, during the long pauses, every 2 minutes it gives a messagge like this: INFO: task XXX blocked for more than 120 seconds. Any suggestion? Sorry for my bad english and thanks everyone for the attention.

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• SSH Lost Terminal Colors

  - by memecs

  I have to computers with exactly the same configuration (same PS1 etc...). When I ssh from A to B the terminal correctly displays PS1 and file type colors (i.e. blue directories, green executables etc.) But when I ssh from B to A PS1 is set to default and colors disappear. Furthermore, I created public keys to ssh without password from A to B and vice-versa. It works correctly from A to B but it doesn't work from B to A, again I repeated the exact same procedure on both pc: On Host A ssh-keygen ssh-copy-id -i ~/.ssh/id_rsa.pub address.to.host.B On Host B ssh-keygen ssh-copy-id -i ~/.ssh/id_rsa.pub address.to.host.A What could be the problem?

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• uswsusp won't hibernate with freeplane and some websites open

  - by Richard

  I installed uswsusp on my laptop to hibernate faster, which works most of the time, but whenever I have freeplane (and some websites in firefox...can't recall which ones but can probably find some) it fails. In order to hibernate, I have to resort to closing the offending program or webpage - but this kinda ruins the point of hibernating... It fails when I try sudo s2disk in a terminal with freeplane open, but strangely works with sudo s2ram --force. When it fails, it simply switches to the black screen with s2disk: Snapshotting system but then returns to the login screen. When I enter my password, the hibernating indicator continues flashing but goes back to the desktop I left when trying to hibernate. When it works, it works as expected from hibernate, shutdown and resume. I saw another thread discuss fglrx modules and to include it in MODULE="fglrx" in /etc/default/acpi-support, but that hasn't helped me. I'm using Ubuntu 11.10 with an ATI graphics card on an Acer Aspire 6920.

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• Can I install an Ubuntu app from remote laptop?

  - by Voidcode

  Is their a way to push/send and ubuntu-app/deb-file to be install on my Ubuntu laptop? Usecase... Laptop 1. I find an app, I need to install! But I´am not at home. I just push it to my other laptop to be install.. Laptop 2. I am now at home. My laptop 2 view an dialog asking to install the app I send from laptop 1. Can this be do?.. SSH? Question-update Can it be done so it open Ubuntu Software Center and then laptop2-user only need to write their password and press ok? for non-tec users.. like my father...

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• How do I get to the maintenace shell?

  - by Narida

  I'm asking this because initially, my problem was this (power failure during installation, so I typed the following instructions in the maintenance shell: sudo mount -o remount,rw / sudo dpkg --configure a sudo mount -o remount,ro / sudo sync sudo reboot The first three lines worked, afterwards, my computer (a Dell Inspiron 530) got stalled for several hours, so I unplugged it. When I turned it on, the log in screen appeared, and after I try to write my password, it leads me back to the log screen. I must note that when I typed the first three lines during the maintenance shell mode, it said that the errors which were encountered during processing were: initscripts bluez gnome-bluetooth So, what do I have to do in order to get back to the maintenance shell so I can type code again? And, what code do I have to write in order to restore my computer? Thank you for your attention.

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• Creating a user called 'root'

  - by pnp

  I am creating Virtual Machines using the ubuntu-vm-builder. The syntax goes something like this: ubuntu-vm-builder kvm precise \ --domain newvm \ --dest newvm \ --arch i386 \ --hostname hostnameformyvm \ --mem 256 \ --user john \ --pass doe \ --ip 192.168.0.12 \ --mask 255.255.255.0 \ --net 192.168.0.0 \ --bcast 192.168.0.255 \ --gw 192.168.0.1 \ --dns 192.168.0.1 \ --mirror http://archive.localubuntumirror.net/ubuntu \ --components main,universe \ --addpkg acpid \ --addpkg vim \ --addpkg openssh-server \ --addpkg avahi-daemon \ --libvirt qemu:///system ; I need to enable the 'root' user account after creating each of my VMs (and supply a password for it). I was just wondering whether I can take this short-cut of supplying the username (--user) as root in this command itself. If I supply username as root to create my VMs, am I creating/enabling the root user, or just creating a user named as root? p.s.: any better ways to achieve my task are also welcome. But I don't want to manually meddle with each VM after its creation

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• Official Ubuntu 10.10 Manual Now Available [Free PDF Download]

  - by Asian Angel

  Do you know someone who is still learning about Ubuntu or is considering trying it out for the first time? Then here is the perfect book to help get them on their way. The Ubuntu Manual Team has recently completed and made available for download their comprehensive 158 page guide on the Ubuntu 10.10 release. If you would like to purchase a regular print copy of the manual click on the left side of the screen (Star Button). For the free PDF version use the right side of the screen (Download Now Button). Download the Getting Started With Ubuntu 10.10 PDF Manual [via Softpedia] Bonus You can also download PDF copies of the manual for Ubuntu 10.04 (First and Second Editions) on the alternate downloads page! Ubuntu Manual Project Alternate Downloads How To Easily Access Your Home Network From Anywhere With DDNSHow To Recover After Your Email Password Is CompromisedHow to Clean Your Filthy Keyboard in the Dishwasher (Without Ruining it)

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• Why ~/.bash_profile is not getting sourced when opening a terminal in Ubuntu 11.04?

  - by Viriato

  Problem I have an Ubuntu 11.04 Virtual Machine and I wanted to set up my Java development environment. I did as follows sudo apt-get install openjdk-6-jdk Added the following entries to ~/.bash_profile export JAVA_HOME=/usr/lib/jvm/java-6-openjdk export PATH=$PATH:$JAVA_HOME/bin Save the changes and exit Open up a terminal again and typed the following echo $JAVA_HOME (blank) echo $PATH (displayed, but not the JAVA_HOME value) Nothing happened, like if the export of JAVA_HOME and it's addition to the PATH were never done. Solution I had to go to ~/.bashrc and add the following entry towards the end of file #Source bash_profile to set JAVA_HOME and add it to the PATH because for some reason is not being picked up . ~/.bash_profile Questions Why did I have to do that? I thought bash_profile, bash_login or profile in absence of those two get executed first before bashrc. Was in this case my terminal a non-login shell? If so, why when doing su after the terminal and putting the password it did not execute profile where I had also set the exports mentioned above?

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• totally stuck trying to SSHing remote server

  - by user9609

  Hey guys, So i've been given access to ssh a server. I have the username/password, but server apparently requires a public key (now bear in mind that i am a noob in ssh). When I do: ssh -p 52 [email protected] terminal says Permission denied (publickey). So I went using ssh-keygen -t rsa and got myself the id_rsa and id_rsa.pub files in /root/.ssh. Chmoded /root/.ssh to 700 and /root/.ssh/* to 600. Tried sshing server.com again, same error. What am I missing? I've been given a Putty Pagant Key file (.ppk) by the SYSADMIN of server.com. Apparently, other users (all Windows) can connect using Putty Pagant.exe. Please help :)

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• Can data classes contain methods for validation?

  - by Arturas M

  OK, say I have a data class for a user: public class User { private String firstName; private String lastName; private long personCode; private Date birthDate; private Gender gender; private String email; private String password; Now let's say I want to validate email, whether names are not empty, whether birth date is in normal range, etc. Can I put that validation method in this class together with data? Or should it be in UserManager which in my case handles the lists of these users?

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• Security Alert for CVE-2011-5035 Updated

  - by Eric P. Maurice

  Hi, this is Eric Maurice again.  Oracle has just updated the Security Alert for CVE-2011-5035 to announce the availability of additional fixes for products that were affected by this vulnerability through their use of the WebLogic Server and Oracle Container for J2EE components.  As explained in a previous blog entry, a number of programming language implementations and web servers were found vulnerable to hash table collision attacks.  This vulnerability is typically remotely exploitable without authentication, i.e., it may be exploited over a network without the need for a username and password.  If successfully exploited, malicious attackers can use this vulnerability to create denial of service conditions against the targeted system. A complete list of affected products and their versions, as well as instructions on how to obtain the fixes, are listed on the Security Alert Advisory.  Oracle highly recommends that customers apply these fixes as soon as possible.

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• Integrating with a payment provider; Proper and robust OOP approach

  - by ExternalUse

  History We are currently using a so called redirect model for our online payments (where you send the payer to a payment gateway, where he inputs his payment details - the gateway will then return him to a success/failure callback page). That's easy and straight-forward, but unfortunately quite inconvenient and at times confusing for our customers (leaving the site, changing their credit card details with an additional login on another site etc). Intention & Problem description We are now intending to switch to an integrated approach using an exchange of XML requests and responses. My problem is on how to cater with all (or rather most) of the things that may happen during processing - bearing in mind that normally simplicity is robust whereas complexity is fragile. Examples User abort: The user inputs Credit Card details and hits submit. An XML message to the provider's gateway is sent and waiting for response. The user hits "stop" in his browser or closes the window. ignore_user_abort() in PHP may be an option - but is that reliable? might it be better to redirect the user to a "please wait"-page, that in turn opens an AJAX or other request to the actual processor that does not rely on the connection? Database goes away sounds over-complicated, but with e.g. a webserver in the States and a DB in the UK, it has happened and will happen again: User clicks together his order, payment request has been sent to the provider but the response cannot be stored in the database. What approach could I use, using PHP to sort of start an SQL like "Transaction" that only at the very end gets committed or rolled back, depending on the individual steps? Should then neither commit or roll back have happened, I could sort of "lock" the user to prevent him from paying again or to improperly account for payments - but how? And what else do I need to consider technically? None of the integration examples of e.g. Worldpay, Realex or SagePay offer any insight, and neither Google or my search terms were good enough to find somebody else's thoughts on this. Thank you very much for any insight on how you would approach this!

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• At Symbol not working for apt get proxy authentication Ubuntu 11.10

  - by Shivhari

  I Have tried two things in three places to see if it works please do help me out. Two methords: 1) replacing @ with %40 2) replacing @ with \@ Three places: 1) export with the .bashrc file 2) editing /etc/apt/apt.conf and setting acquires there 3) using gconf editor and setting the values in /system/http_proxy and setting authentication name and password and checking the use_authentication checkbox. still there is no success and i still get 407 error when trying wget or apt-get update. please do help me, been stuck with this for three hours now. also, i read somewhere that creating a file in /etc/apt/apt.conf.d and then creating a 01proxy file with acquire might work. I tried that also, but it doesnt work. Please help.

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• How to automatically mount a Windows shared folder on every boot up?

  - by Zabba

  I am able to access Windows' shared folder from Ubuntu 10.10 Nautilus like so: Type into the Location Bar : smb://box/projects Now, I can see the folder in Nautilus, create/read files in it. Also, on desktop I get a folder called "projects on box". But, that folder on the desktop goes away when I reboot. So, I thought that I can automount the Windows' shared projects folder by adding this to my fstab: //box/Projects /home/base/Projects smbfs rw,user,username=jack,password=www222,fmask=666,dmask=777 0 0 (base is my user name on Ubuntu) Now, I get a folder called "Projects" in my home folder after boot up, but it is empty (cannot see the same files that I can see in Nautilus). What's am I doing wrong? Some more detail: This is what I see of the Projects folder when I do ls -l in my home folder: ... drwxr-xr-x 2 root root 4096 2011-01-01 10:22 Projects drwxr-xr-x 2 base base 4096 2011-01-01 09:06 Public ... Note the two "roots". Is that somehow the problem?

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• Can't login to my XFCE environment from lxdm

  - by Noob

  I installed lxdm as my display manager because I heard its very lightweight. Now after installing it when I select my Desktop as Xfce session I am not able to login. Basically what happens is it waits for sometime and than reload the same login page. On the other hand if I select lxde as my Desktop I am able to login. So, what am I doing wrong here. The other problem I am facing with lxdm is it doesn't show my default user account. I have to select more and enter both my username and password to login into any session.

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• Taking a Projects Development to the Next Level

  - by user1745022

  I have been looking for some advice for a while on how to handle a project I am working on, but to no avail. I am pretty much on my fourth iteration of improving an "application" I am working on; the first two times were in Excel, the third Time in Access, and now in Visual Studio. The field is manufacturing. The basic idea is I am taking read-only data from a massive Sybase server, filtering it and creating much smaller tables in Access daily (using delete and append Queries) and then doing a bunch of stuff. More specifically, I use a series of queries to either combine data from multiple tables or group data in specific ways (aggregate functions), and then I place this data into a table (so I can sort and manipulate data using DAO.recordset and run multiple custom algorithms). This process is then repeated multiple times throughout the database until a set of relevant tables are created. Many times I will create a field in a query with a value such as 1.1 so that when I append it to a table I can store information in the field from the algorithms. So as the process continues the number of fields for the tables change. The overall application consists of 4 "back-end" databases linked together on a shared drive, with various output (either front-end access applications or Excel). So my question is is this how many data driven applications that solve problems essentially work? Each backend database is updated with fresh data daily and updating each takes around 10 seconds (for three) and 2 minutes(for 1). Project Objectives. I want/am moving to SQL Server soon. Front End will be a Web Application (I know basic web-development and like the administration flexibility) and visual-studio will be IDE with c#/.NET. Should these algorithms be run "inside the database," or using a series of C# functions on each server request. I know you're not supposed to store data in a database unless it is an actual data point, and in Access I have many columns that just hold calculations from algorithms in vba. The truth is, I have seen multiple professional Access applications, and have never seen one that has the complexity or does even close to what mine does (for better or worse). But I know some professional software applications are 1000 times better then mine. So Please Please Please give me a suggestion of some sort. I have been completely on my own and need some guidance on how to approach this project the right way.

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• Asus 1001P freezes after chaging network settings

  - by auntiquarian

  I'm running Ubuntu 11.04 on a Asus PC 1001P in a dual boot environment with XP. All has been running fine for several weeks, but: I've just changed ISP (from Tiscali to BT), and had already sorted out connection, registration, etc. on a Dell laptop. On the Asus I went into Ubuntu to alter the wireless network details (i.e. selected the new network, and entered the password). Ubuntu immediately started running slowly, and after rebooting it now freezes when it gets to the Ubuntu logo and gets no further. Please help, lovely Ubuntu experts.

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• Problem opening .sh file

  - by Lautré

  I'm trying to install Torchlight from the Humble Indie Bundle 6. The installation file is an sh file. When I try to run the sh file I get this output. [ user@pc:~/Desktop$ sudo sh ./Torchlight-2012-09-26.sh [sudo] password for user: Current temporary directory (usually /tmp by default) does not seem to be executable! Please specify an alternative path by using the --target option.] How do make the tmp dir executable or specify an alternate path? I'm running ubuntu 12.10

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• Ubuntu 12.10 WiFi Problems

  - by Sean Webber

  I have a 32 bit machine running Ubuntu 12.10 with WiFi on it. I have a WPA2 network at home, but if I leave the USB Adapter plugged in while it boots, it infinitely keeps asking for the network password but never connects. If I plug it in after boot, it will connect but then I can't access ANYTHING on the LAN or Internet because "the DNS servers are unreachable". Now, if I leave the computer on a while, I get lucky sometimes and it MAGICALLY decides to connect for a little bit, lock the machine though and the Internet's gone again. The weirdest thing, is when I am connected but can't get to the internet, I do a netstat or ifconfig wlan0, I do have an IP address and everything. It says I'm connected but its not. I have a Realtek RTL8188CU USB adapter.

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• Is this fix for Avast Antivirus crashing safe to use?

  - by TmRn

  Well I have installed avast anti virus on Ubuntu 12.04. But after updating, it crashes! So I have made some tweaks like below: Press Ctrl+Alt+T to open the Terminal. When it opens, run the command below. sudo gedit /etc/init.d/rcS Type your password and hit Enter. When the text file opens, add the line: sysctl -w kernel.shmmax=128000000 Make sure the line you added is before: exec /etc/init.d/rc S This is what it should look like: #! /bin/sh # rcS # # Call all S??* scripts in /etc/rcS.d/ in numerical/alphabetical order # sysctl -w kernel.shmmax=128000000 exec /etc/init.d/rc S Save the file. Reboot. My question is: Did I do anything wrong? I mean as I have made some tweaks, will it lower the security of Avast down like viruses do? Please if you are a programmer check this if it contains bug or harmful intentions... Thanks.

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• iTunes 7 can't find iPod in PlayOnLinux using Ubuntu 12.04 Precise?

  - by Endia

  I'm using 12.04 and the latest version of PlayOnLinux to run iTunes 7. I have my iPod 4th gen plugged in and the computer recognizes that it's mounted but it's not showing up in iTunes for me to do anything with it. I know there have been a lot of issues with being able to access your iDevices in iTunes from Linux when you're using a compatibility layer like PlayOnLinux or Wine (both of which I have), so it's recommended that I use Rhythmbox to back up my music etc. Which is fine, because that's part of what I need to do, but my primary need in trying to access my iPod in iTunes is that I need to remove my backup password so that I can jailbreak my iPod with the new Absinthe jailbreak. If there is some other way I can do this without iTunes you know of, I'd love to hear it. If not, what can I do?

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• How to get KeePass to properly work with Chromium?

  - by Tom

  The two-channel auto-type obfuscation feature of KeePass doesn't work for me with Chromium (on Ubuntu 12.04 64 bits). However, it works just fine with Firefox. Dows anyone know how to fix this? Textboxes in web forms in Chromium seems to have something special that causes this feature to fail. Only some of the username/password characters are being auto-typed. This might be related to this: if I select an entry in KeePass and click "Copy User Name", I can paste it fine with Ctrl+V in any textbox in Firefox, but I can't on Chromium. However, text copied using Ctrl+C from a regular text file (say, from gedit), can be pasted fine on both browsers. What may be wrong? I wouldn't like to deactive this feature for all the entries in my keepass files as I use them on Windows too and they work just fine there (even on Google Chrome for Windows). This feature gives an appreciated extra security measure against spyware/keyloggers.

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• I Can't update 12.04 to 12.10 ERROR:"gpg: WARNING: This key is not certified with a trusted signature!"

  - by jason328

  I'm trying to update to 12.10 from a 12.04 machine. When I ran the code sudo do-release-upgrade -d in my terminal and verified my password it checked for a new upgrade. I was then returned with this: gpg: Good signature from "Ubuntu Archive Automatic Signing Key <[email protected]>" gpg: WARNING: This key is not certified with a trusted signature! gpg: There is no indication that the signature belongs to the owner.` There of course is more but it looks like it may or may not be showing private information with it. What's causing this and how do I fix this.

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• SMTP POP3 & PST. Acronyms from Hades.

  - by mikef

  A busy SysAdmin will occasionally have reason to curse SMTP. It is, certainly, one of the strangest events in the history of IT that such a deeply flawed system, designed originally purely for campus use, should have reached its current dominant position. The explanation was that it was the first open-standard email system, so SMTP/POP3 became the internet standard. We are, in consequence, dogged with a system with security weaknesses so extreme that messages are sent in plain text and you have no real assurance as to who the message came from anyway (SMTP-AUTH hasn't really caught on). Even without the security issues, the use of SMTP in an office environment provides a management nightmare to all commercial users responsible for complying with all regulations that control the conduct of business: such as tracking, retaining, and recording company documents. SMTP mail developed from various Unix-based systems designed for campus use that took the mail analogy so literally that mail messages were actually delivered to the users, using a 'store and forward' mechanism. This meant that, from the start, the end user had to store, manage and delete messages. This is a problem that has passed through all the releases of MS Outlook: It has to be able to manage mail locally in the dreaded PST file. As a stand-alone system, Outlook is flawed by its neglect of any means of automatic backup. Previous Outlook PST files actually blew up without warning when they reached the 2 Gig limit and became corrupted and inaccessible, leading to a thriving industry of 3rd party tools to clear up the mess. Microsoft Exchange is, of course, a server-based system. Emails are less likely to be lost in such a system if it is properly run. However, there is nothing to stop users from using local PSTs as well. There is the additional temptation to load emails into mobile devices, or USB keys for off-line working. The result is that the System Administrator is faced by a complex hybrid system where backups have to be taken from Servers, and PCs scattered around the network, where duplication of emails causes storage issues, and document retention policies become impossible to manage. If one adds to that the complexity of mobile phone email readers and mail synchronization, the problem is daunting. It is hardly surprising that the mood darkens when SysAdmins meet and discuss PST Hell. If you were promoted to the task of tormenting the souls of the damned in Hades, what aspects of the management of Outlook would you find most useful for your task? I'd love to hear from you. Cheers, Michael

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