• Hadoop error when accessing application through HTML

    We have installed Hadoop on our cluster and now we're installing HTTPFS to access the HDFS content using HTTP protocol. We're able to access the normal page but when we tried to access HDFS, we're getting an error: {"RemoteException":{"message":"User: ubantu is not allowed to impersonate ubantu",...

    ITKE357,100 pointsBadges:
  • JAVA_HOME is not set correctly when installing Hadoop on Ubuntu

    I've been trying to install Hadoop on Ubuntu 11.10. I just set the JAVA_HOME variable in the file conf/hadoop-env.sh to: # export JAVA_HOME=/usr/lib/jvm/java-1.6.0-openjdk Then I tried to execute these commands: $ mkdir input $ cp conf/*.xml input $ bin/hadoop jar hadoop-examples-*.jar grep input...

    ITKE357,100 pointsBadges:
  • HDFS error when testing a simple file from a Amazon EC2 machine

    I recently created an Ubuntu single node Hadoop cluster in Amazon EC2. I've tried to test a simple file upload to HDFS. It works from the EC2 machine but doesn't work outside of it. Here's the error I got: java.io.IOException: File /user/ubuntu/pies could only be replicated to 0 nodes, instead of 1...

    ITKE357,100 pointsBadges:
  • Samba AD and PDC doesn’t work after Ubuntu server update

    I am running Ubuntu Server 14.04.1. The server uses Samba 4.4.6 to implement an Active Directory and is the primary domain controller. Each time I update the server I can no longer log into the domain. To fix the issue I reinstall samba and set up the AD and PDC again. Each of the domain clients...

    IronmanMask5 pointsBadges:
  • Ubuntu 14.04 – How to Change Home Directory

    Hi, I've a dual boot system, Windows 7 with Ubuntu 14.04,. There is only one user in Ubuntu and only one in Windows too. How can I point my Ubuntu user's Documents, Downloads, Pictures etc. Folders to the one on Windows 7 User's? So that whatever OS I'm in, I've the same documents / downloads /...

    practitioner5 pointsBadges:
  • Why is my POP3 password always refused by Evolution?

    I have not yet been able to access my mail through evolution. It refuses my POP pass word continuously. I am getting very upset as I have to go elsewhere etc.

    B19645 pointsBadges:
  • Protecting an Ubuntu 8.04 implementation

    I just started with Ubuntu Alternet 8.04.1 LTS with 1386 ISO. As a new user I want to protect my system before I get on the internet. I felt unprotected using Windows, and got adaware and viruses. I downloaded and burned these .deb files for protection along with Avast! for Linux : bastille -...

    Linux - Ask the Expert270 pointsBadges:
  • Configuring multiple network cards in Ubuntu

    I need to make a router with Ubuntu. I need to install more than one network card (with separate IP addresses and config for each card). How can I do this?

    Zxcvb25 pointsBadges:
  • Ubuntu: OpenOffice 3.0.1

    Should I install the latest Open Office 3.0.1 or wait for an official Ubuntu update? I guess it shouldn't harm if I do?

    Mr786976320 pointsBadges:
  • How to list all IPs in the connected network through Ubuntu

    I've been using Ubuntu lately and I was wondering if there's a command line (command) that can list all of my IPs from my devices that are connected to the network. I'm assuming this needs to e a command line since I'll be running it through C++. Can someone help me out here?

    ITKE357,100 pointsBadges:
  • Giving write access of a folder to all users in Ubuntu

    We recently installed Apache on Ubuntu this past week and we've noticed that the /var/www folder is protected. We already know that we can 'sudo' everything but we're looking to just give it write access. How can we do this?

    ITKE357,100 pointsBadges:
  • Check which Apache modules are enabled or installed on Ubuntu

    My apologizes for the short question but is there a way to check which Apache modules are enabled / installed? Thank you.

    ITKE357,100 pointsBadges:
  • How to increase the number of TCP/IP connections in Linux

    I'm currently programming a server and I've noticed that my number of connections is being limited since my bandwidth isn't being saturated. The thing is that I've already set the number of connections to unlimited. Would there be a way to increase the maximum number of connections that my Ubuntu...

    ITKE357,100 pointsBadges:
  • Error message when writing C program in Linux

    I'm pretty interested in learning to write C programs that use threads. Here's a program that my friend showed me: #include #include #define NUM_THREADS 5 void *PrintHello(void *threadid) { long tid; tid = (long)threadid; printf("Hello World! It's me, thread #%ld!\n", tid); pthread_exit(NULL); }...

    ITKE357,100 pointsBadges:
  • PHP.INFO is showing wrong size in Ubuntu

    We're looking to change the limit of our PHP upload file sizes. Here's some info we have on these: Configuration File (php.ini) Path /etc/php5/apache2 Loaded Configuration File /etc/php5/apache2/php.ini And here's the content of our PHP.INI file: upload_max_filesize = 50M post_max_size = 50M...

    ITKE357,100 pointsBadges:
  • Linux: Setting chmod for a folder and its subfolders and files

    Does anybody know if there's a way to set "chmod 755" for /opt/lampp/htdocs and it's content including subfolders and files? And if I create a new folder, can the chmod be automatically set to 755? Sometimes, this works but only for this folder. chmod 75 /opt/lampp/htdocs

    ITKE357,100 pointsBadges:
  • Discover Wi-Fi connections in Ubuntu

    How can I search for available wireless networks using Ubuntu? It just asks me about the name of the network.

    Sevi15 pointsBadges:
  • Notepad++ alternative in Linux

    Ever since I started using Notepad++ on Microsoft Windows, I've pretty much become addicted to it. But I've recently had to move to Ubuntu and now I'm missing it. Is there an alternative to it? Thank you.

    ITKE357,100 pointsBadges:
  • Unable to login in to LAMP on Ubuntu

    I recently installed LAMP on Ubuntu and then set my root password on phpMyAdmin. I already forgot the password and I can't login. I tried to change the password through the terminal, I've been getting this: "ERROR 2002 (HY000): Can't connect to local MySQL server through socket...

    ITKE357,100 pointsBadges:
  • Autoatically run program on startup using Ubuntu Linux

    One of my programs needs to be run every time I start up my Ubuntu Linux, so I'm trying to to add it to my startup programs list. I do have an issue: This needs to be done through Terminal. Is this possible? Thank you very much.

    ITKE357,100 pointsBadges:

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