Ubuntu is a Linux distribution with an emphasis on ease of use and installation. Note that http://askubuntu.com is specifically dedicated to Ubuntu questions.

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6
votes
3answers
5k views

A Web ssh/telnet client

I'm in kind of a tight spot right now. I wanted to know if someone has seen a HTML, or PHP web ssh client as both my company and school block everything besides port 80. I'm a control freak when it ...
0
votes
1answer
2k views

Setting up enviroment variables in Ubuntu

I am trying to setup up my enviroment variable in my Ubuntu machine. Now i did some research and tryed the method on this question Set environment variable in Ubuntu Similar question but the thing is ...
3
votes
1answer
728 views

Ubuntu networking: can't connect to LAN

I have a server with Zentyal 3.03 (Ubuntu 12.04) LTS. It has 3 network devices: eth0 - dhcp fast internet (I pay for it) eth1 - static slow internet (it's free for the school) eth2 - LAN I can ...
0
votes
1answer
379 views

Unable to change file permissions [duplicate]

Possible Duplicate: No effect of umask and chmod on mounted drives I am not able to change file permissions using chmod from the user who owns the file as well as from root. I am using ...
2
votes
1answer
690 views

Problem with java3d

I want to play this java simulation: http://www.compadre.org/OSP/items/detail.cfm?ID=9640 in java 3d mode on a linux (ubuntu) system. But it doesn't work. If I switch to java 3d-mode it complains ...
2
votes
4answers
2k views

Missing Fedora in grub after installing Ubuntu

I had Fedora 17 in a primary partition. Yesterday I installed Ubuntu in an extended partition, and I can't see Fedora in grub, so I tried update-grub2 but it doesn't recognise Fedora being present, ...
1
vote
1answer
593 views

How to share files Between RHEL and Ubuntu

I have installed RHEL 5.5 on VIrtual Box and Host system is Ubuntu 12.04. I can access the files of Ubuntu by using the sharing services of Virtual Box. But how can I access the files of RHEL which ...
0
votes
0answers
116 views

Install Rails on linux

I am trying to install Ruby on Rails and I have followed the following link for the install ...
1
vote
0answers
430 views

Asrock H61M-ITX sensors

I just installed a small home server with Ubuntu 12.04.01 but I have a problem with the fan that run on full all the time. The server specs are: Linkworld Mini ITX 920-01 Asrock H61M-ITX mITX USB3 ...
3
votes
1answer
2k views

Ubuntu 12.04: Random freezes

I get random freezes with Ubuntu 12.04 (kernel 3.2.0-31). The entire system freezes, mouse pointer doesn't move, keyboard input doesn't work. I'd say this happens about once per week on a system that ...
7
votes
2answers
1k views

What are the ramifications of setting the hostname?

I have several Amazon EC2 servers and I'm using Chef to manage the configuration. I'd like to set the hostname so that the default bash prompt is more helpful. Right now after launching a new server ...
25
votes
1answer
5k views

Meaning of colours in htop

Given the option: [ ] Detailed CPU time (System/IO-Wait/Hard-IRQ/Soft-IRQ/Steal/Guest) In htop (Version 1.0.1) what are the meanings of the colours? In the following image, I'm seeing rather a lot ...
1
vote
1answer
420 views

How to filter group membership from the ldap server?

Context : We have a Ubuntu 12.04 with authentication done on a ldap server. Unfortunately, one (ldap) user belongs to a (ldap) group named "admin". I know there is the option ...
13
votes
3answers
26k views

How to configure external IP addresses for LXC guests?

I'm exploring the LXC features in Ubuntu 12.04 and I really want to set up a network like this: client1: 192.168.56.101/24 lxc-host: 192.168.56.102/24 guest1 192.168.56.201/24 guest2 ...
5
votes
1answer
1k views

Using a APC Smart-UPS to shutdown a Ubuntu Server Cluster

I'm currently in the process of designing a solution to shutdown a two Ubuntu Server cluster that uses heartbeat and DRBD to replicate storage and offer a NFS share to some IP cameras. We want to ...
4
votes
1answer
4k views

How to have pam_exec run the script as the current user?

I need to run a script, when the session is opened, as the user who's opening the session. I have added in /etc/pam.d/common-session : session optional pam_exec.so ...
0
votes
1answer
452 views

Simple jail for user with open-ssh [duplicate]

Possible Duplicate: Restricting an SSH/SCP/SFTP user to a directory Can I confine my users to their /home/%u directory using simply open-ssh configuration? I did the following from what I ...
4
votes
1answer
1k views

Countdown timer in panel

Is there some widget that I can put in the panel of my Xubuntu system that will show me a countdown of time? I've tried pystopwatch, but although it minimizes, it doesn't show me how long I have left. ...
0
votes
1answer
579 views

rexecd daemon for Ubuntu

How to start rexecd daemon/server on ubuntu-11.10 ? If I try to run the command /usr/sbin/in.rexecd then an error appears as rexecd: getpeername: Socket operation on non-socket rexecd is remote ...
7
votes
1answer
784 views

GPU computing without X?

I am attempting to run GPU computation software on Ubuntu Server 12.04 without X since this box is going to be a dedicated computation machine. However the last requirement "Without X" is proving to ...
6
votes
2answers
1k views

Piped input to nano

Why does ls | nano - open the editor in Ubuntu but close the editor and save a file to -.save in CentOS? How can I get nano in CentOS to remain open when reading stdin?
1
vote
3answers
2k views

Ubuntu doesn't boot normally after manual installing of X.org

I tried to compile and install X.org (for a single card/multiseat in this tutorial) by getting source from here and installing it by: ./configure --enable-kdrive --enable-xephyr --enable-xfake ...
6
votes
4answers
1k views

Look for English word in a file via terminal

How to find and print out English words contained in a file via linux command line?
4
votes
1answer
2k views

scp permission denied after 'hardening' with bastille

I recently 'hardened' two Ubuntu servers using Bastille, and now I get permission denied: scp whenever I try to scp files in. SSH login works fine. I've tried adding an /scp-dump folder with 777 ...
2
votes
2answers
133 views

Cannot Restore LAN Connection

I have two servers, 198.162.0.4 and 198.162.0.10, that were connected across a LAN. They are the components of a DMZ where 198.162.0.4 is the wen server and 198.162.0.10 the application server. ...
2
votes
4answers
15k views

How to permanently change the file/directory permission [closed]

How do I change the permission of file/directories such that I am able to create, edit, delete files/directories anywhere in my system? Currently I am using Ubuntu 12.04. I tried sudo chmod 777 -r ...
2
votes
2answers
15k views

What is the command or hotkey for stopping a running program in DrJava?

I installed DrJava about a week ago. Its been working fine so far but I ran into an infinite loop and wanted a way to stop the program from running without having to force DrJava to quit. Is there a ...
1
vote
1answer
320 views

Trouble installing or booting into Ubuntu or Fedora using a live USB or DVD on a new Lenovo E31

I've tried a live USB with Ubuntu 12.04.1 (both i386 and AMD 64-bit) as well as 11.10, as well as Ubuntu 10.04 on a DVD and Fedora 17 on a live USB. In all cases, selecting the option to boot into ...
1
vote
1answer
566 views

FTP Upload Hook [duplicate]

Possible Duplicate: How to run a command when a directory's contents are updated? I need to be notified and perform other tasks when a file is uploaded onto my server. Is there any ...
3
votes
1answer
550 views

resolution of attached widescreen

I wanted to connect my TV (Sony Bravia) to my Laptop. My laptop has a displayport and the TV a HDMI. So with the adapters, I'm able to connect those two, and that part works. What doesn't work, is ...
5
votes
3answers
8k views

No sound on speakers, headphones ok

My Laptop (Dell Vostro 3300) internal speaker (yes, it's mono) is mute already for some time, and I was just patient with this problem, because the sound quality is ridiculous anyway and I always used ...
2
votes
1answer
1k views

Setup PPTP VPN connection with no GUI [closed]

I want to configure a remote linux (Ubuntu Precise) to use a PPTP VPN. I can only access to it using ssh, so I don't have a graphical interface (neither do I want it). Some hours googling: Guides ...
0
votes
0answers
3k views

ADDRCONF(NETDEV_UP): eth0: link is not ready

my OS (Ubuntu 12.04) started to load slowly. After I choose OS from GRUB, it takes like 50 seconds of loading to get to login screen. I google'd, that command dmesg can provide some useful output. ...
0
votes
1answer
319 views

ask about diskpart in windows 7 to access file in ubuntu 12.04

I am using Ubuntu 12.04 in VMware 7 as ISO file through Windows 7. I am having diskpart in Windows 7 with a partition of 21GB of IDE disk. Whatever, I want to ask about disk partition code to access ...
2
votes
2answers
2k views

Install Linux on two hard drives

I am new to Linux. I have a machine with two hard drives, the first one has 80GB and the second has 120GB. I am about to format this machine and install Linux. I want to install all the main ...
1
vote
2answers
120 views

adding a site to Apache2 Ubuntu Linux

I am a newbie to Linux. I am trying to add a webiste on Ubunutu Linux server and following this tutorial http://www.hostly.com/hosting-info/build-website-using-apache-1658.html Created a ...
3
votes
2answers
180 views

X11 on server without forwarding

I'm running a java application on my ubuntu server which refuses to open if it cannot open a window (the content of the windows is of no interest for me). Since the server is not connected to any ...
6
votes
2answers
9k views

How to adjust charging thresholds of laptop battery?

My laptop is Lenovo T400, and OS is Ubuntu 12.04. I have not been able to adjust the thresholds for battery starting charging and stopping charging. I observed that its current starting charging ...
6
votes
1answer
575 views

HDD allocation fstab

In my PC running Ubuntu 12.04 LTS I have installed three SATA hard drives. Two of them are installed near a cooler. I want to physically switch two drives (one that is not near the fan should be moved ...
3
votes
4answers
12k views

dpkg: new pre-installation script returned error exit status 1

I ended up dealing with a software meant to be deployed using dpkg. The .deb package works fine on the test env but fail on staging. Both are running the same version of Ubuntu but I am not 100% sure ...
3
votes
1answer
9k views

Dual graphics cards in Mint & Ubuntu

I have a triple boot machine with Windows 7, Mint 13 (with XFCE) and Ubuntu 12. Only under Windows 7 does my second screen attached to a second graphics card come on. Under both Mint and Ubuntu, the ...
2
votes
3answers
15k views

Apache 403 Forbidden on sub folders?

I can view all files in the root directory (/var/www) but as soon as i enter a sub directory (eg /var/www/test) i get a 403 Forbidden error. I'm running Ubuntu 12.04.01. Have tried searching for ...
5
votes
4answers
9k views

Creating mounting point

I am mounting an image, and just realized that I have to create the directory for mounting point first. The command mount won't mount to a non-existing directory. But I seem to remember in some ...
5
votes
3answers
5k views

On Ubuntu Linux, is it normal for mandb to run continuously (apparently in the background)?

I have access to a Ubuntu Linux node at my institution. The nodes are shared among the group, but typically I am the only person who uses this particular node. I am running a calculation in parallel ...
3
votes
2answers
847 views

Package installation and dependancies - how to prevent installation of existing libraries?

I'm a relatively new Ubuntu server user, so I'm learning as I go. I have an issue with a software package I'm installing (QGIS) which has several dependancies one of them being gdal library. ...
0
votes
1answer
1k views

openssl s_client hangs

I am trying to look at some ssl certs with openssl's s_client. For some reason it hangs with the connection open after spitting out the cert info. Here is the command I am using and the output: ...
0
votes
2answers
3k views

Related to apt-get update command

I am using Ubuntu12.04 and I installed lots of pkg. I want to update only one specific pkg. I tried using $apt-get update pkgname E: The update command takes no arguments so then I tried ...
1
vote
0answers
523 views

Partition wiped out possibly due to the partition table changed by Windows, malicious software, or …?

When the data loss problem occurred: My Lenovo laptop has both Windows 7 and Ubuntu 12.04. There are two ntfs partitions shared between the two OSes: one for Windows 7 installation ,and the other for ...
1
vote
1answer
83 views

Rebooting makes me lose my password-less keys on other machines

When I reboot my machine (as I did today) I seem to lose some functionality, specifically my previous ssh keys that I had copied over to other machines that had allowed me to login without a password ...
1
vote
1answer
933 views

Make bluetooth device invisible / disable incoming pairing

I am using the bluez package for my bluetooth usb dongle on ubuntu server. I want to be able to initiate bluetooth connection from the dongle to a device, however a device itself shall not be able to ...