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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E: Some index files failed to download. They have been ignored…” when tunning “sudo aptitude update”?

This is what the end of output after I run sudo apt-get update on Ubuntu 12.04: Ign http://apt.typesafe.com unicorn/main Translation-en 35% [Working]W: Failed to fetch ...
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1answer
792 views

Broadcast port to other computers after SSH reverse tunnelling

I have been reading on how to reverse tunnel and I am using this command: ssh -f -N -T -R25565:localhost:25565 dns.mindfulhacker.tk To forward my Minecraft server. My other server can connect to my ...
2
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1answer
429 views

vsFTPd Browser no Listing

I'm trying to access my ftp server through the browser but I am facing an issue. If I access it using Filezilla, I can see the directories fine. However using a browser I get no directory listing as ...
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5answers
6k views

Curl with ipv6 not working by default

I am trying to curl ipv6 addresses, but without success. If I try lets say: curl https://google.com I wait for a timeout and get network unreachable If I force ipv4, everything is fine. ...
2
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1answer
950 views

Since Ubuntu persistent USB crashed, it fails to boot with black screen pre-login, what to do?

I'm using a persistent live USB version of Ubuntu 13.04. Recently it crashed while I was using it. When I restarted I couldn't get past the Ubuntu logo with the sequentially flashing dots anymore. ...
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1answer
213 views

Ubuntu 13..04 reinstall Unity and gnome3

I remove unity and gnome 3 in my Ubuntu. I am using now just mate desktop. But I would like to restore Unity and Gnome3. So I tried this re-install solution, but now i get: The following information ...
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1answer
863 views

How to install SUMO on Ubuntu 10.10

I want to install SUMO on Ubuntu 10.10: I followed sumo installation guidelines step by step: I installed packages necessary to build SUMO, I created a symbolic link libgdal.so . I decompressed the ...
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2answers
5k views

kernel panic Hardware Error - what hardware is responsible?

I'm having kernel panics every other day. below is a transcript of a photo of the console. How do I determine what hardware is responsible for the problem? (or is it software) Ubuntu 12.04 LTS ...
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2answers
1k views

Removing Linux from a dual-boot setup. How to recover Windows bootloader or keep GRUB?

I recently discovered that running a Linux virtual machine is both cheap (RAM/CPU-wise) and easy; it seems like there's absolutely no need to have a dual-boot Windows/Linux machine (if this is not ...
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0answers
273 views

Tmux hidden input at command line

I've just started using tmux recently, and have run into this problem a few times. Whatever I type on the command line, is hidden from view until I press enter and it is executed. I don't know how I ...
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0answers
463 views

Remmina doesn't work with keyboard when connected remotely

In order to bypass firewall/GPO constraint, I want to use Ubuntu as springboard to rdp to a Windows box on the same LAN remotely. I can xrdp to ubuntu via sesman-Xvnc module. I can run remmina from ...
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2answers
96 views

How to schedule initial configuration of a system after cloning?

I want to setup a big amount of servers using cloning. After the initial image was applied, I want to run a configuration script. The cloning will be done through hard disk replication by the hardware ...
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2answers
116 views

Why does this command work for logging script output?

This command does not store the output of my script in the log file: . myscript.sh | tee -a log_file.log However this next command does store the output in the log file. . myscript.sh 2>&1 ...
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1answer
314 views

OpenVZ bridged networked adapters won't work from sample configs

I've made a copy of the basic config and added the line: NETIF="ifname=eth0,bridge=br0" When I create a new machine and enter it I can't make the network adapter work yet creating an instance from ...
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2answers
445 views

how os running in virtualbox effect original os speed in laptop [closed]

Suppose I want to run ubuntu on virtual box.. how it effect original windows in terms of speed ?? like we used ram for ubuntu can not be used for windows like that??
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0answers
717 views

ubuntu winboot wubildr.mbr missing

I have installed Ubuntu 12.04 (64 bit) operating system, It supports uefi so I installed it like a normal dual booting Now(not like wubi), when I try to load Windows8 it works fine. But when I try to ...
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2answers
2k views

Kernel freezes on loading ramdisk. How to find out what's wrong?

I'm using an Ubuntu Server (13.04) Minimal installation (with the Xubuntu Metapackage as a desktop environment, if that matters) on x86_64 on my Samsung notebook. I'm currently forced to use the ...
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0answers
320 views

Webmin alternative that installs & runs on the client machine & communicate via SSH

Are there any Webmin alternatives that don't consume server resources but instead install on client machine & communicate via SSH client. So effectively all the actions made on that GUI are ...
4
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1answer
643 views

NetworkManager connection sharing doesn't seem to NAT packets

After setting up network sharing the easy way on the Ubuntu machine, and getting an IP address via DHCP on the Arch Linux machine downstream, the Arch machine is able to ssh to the Ubuntu machine and ...
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1answer
1k views

Security of an encrypted (dm-crypt & LUKS) Ubuntu 12.04 installed by somebody else?

Suppose I want an Ubuntu setup (let it be 12.04) with full disk encryption. Ubuntu offers this as an option during installation. Suppose also that I have somebody (e.g. my vendor) else set this up ...
2
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1answer
602 views

Why doesn't my udev rule work?

I created a file /etc/udev/rules.d/60.alsa.rules with the following content: KERNEL=="0000:00:1b.0", SUBSYSTEM=="pci", ATTR{label}=="Realtek High Definition Audio Device", ATTR{vendor}=="0x8086", ...
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1answer
6k views

Can't mount external USB driver - on Ubuntu 12.04

When I plug in external usb driver I saw next prompt: Error mounting: mount exited with exit code 1: helper failed with: Unprivileged user can not mount NTFS block devices using the external FUSE ...
2
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1answer
878 views

Ubuntu 12.10 - setup a user, when ssh login gives me /etc/bash.bashrc: Permission denied

I setup a user on my Ubuntu 12.10 server named "deploy" and I believe i added the user to the sudoers properly. However, whenever I SSH into the server with this user, I get: -bash: ...
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3answers
3k views

Ways to update Ubuntu (debian-based distros) offline

What is the easiest way to update/upgrade an offline Ubuntu machine with the help of a Windows machine that has internet access? This question also applies to installing new packages offline and not ...
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2answers
33k views

sendmail error dsn=5.0.0, stat=Service unavailable

i have configured an sendmail configuration in ubuntu 12.04 64 bit machine when i'm send th email through a perl script it gives the below error dsn=5.0.0, stat=Service unavailable and mail is not ...
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2answers
1k views

Ubuntu is running slow

I'm not sure since when it became slow, but I think after I did apt-get update. Here's my machine details: I can see from the system monitor that the CPU is working hard specially when I run Chrome ...
3
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1answer
946 views

Compile the Ubuntu “Raring” Kernel with the Intel Compiler

Of course, the first question is: why I'm doing this. Just for fun! I'm learning more about Linux kernels and I have a virtual machine that I can replace in 15 minutes. Getting to business, I don't ...
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1answer
162 views

eee pc 1025c shows black screen after booting on Ubuntu 10.04 [closed]

eee pc 1025c shows black screen after booting on Ubuntu 10.04 It does work in recovery mode, but not in default mode
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0answers
184 views

Possible to limit number of cups printers?

The way I have configured CUPS on my workstation is by echo 'CUPS_SERVER=cups.example.com' >> ~/.profile echo 'export CUPS_SERVER' >> ~/.profile When I open the print menu in any ...
2
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1answer
655 views

How can I access a shared folder from R on Ubuntu to a 2nd Ubuntu machine using Samba?

I have two machines running Ubuntu 12.04 LTS with Samba installed. I have access to myshared folder as expected. However, when setting in R the path smb://mymachine1/mysharedfolder to read a file it ...
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2answers
236 views

Change chkconfig used by Centos 6.3 to print “on” in bright green (like Ubuntu's chkconfig)?

chkconfig on Ubuntu will highlight services that are on in green when using list mode. http://i.stack.imgur.com/Jx1jW.png This does not occur on CentOS 6.3. I'd like that highlighting on the CentOS ...
2
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1answer
123 views

Why does apt-get remove only a few kB?

I installed nginx (sudo apt-get install nginx) and then removed it with sudo apt-get remove nginx. I to need ensure that the application is uninstalled and cannot run. (I'm still able to run service ...
4
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3answers
3k views

How do I share an internet connection through USB?

I have two Linux boxes. One is running KNOPPIX and the other Ubuntu. I have only one wifi dongle between them, and only one of them has an Ethernet port. They both have free USB ports however. I ...
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2answers
472 views

VNC connection taking a long time to connect (essentially…never)

I have my Ubuntu 13.10 desktop with vnc setup and installed. I'm using both a Macbook's integrated vnc remote desktop program and Windows 7's built-in Remote Desktop program to vnc. Both give the same ...
5
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1answer
3k views

Can't do chown/chgrp/chmod on shared dir in VirtualBox Ubuntu 10.04

I installed Guest Additions on my Ubuntu 10.04 VM running out of VirtualBox in order to enable directory sharing, following these instructions. Set the shared folder in the VirtualBox GUI and it ...
0
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1answer
98 views

init 0 process is not starting

Yesterday I have encountered one problem, when I turn on my PC it took a long time to boot. After booting it reached to command line with <initramfs> (It is unknown to me what it is) I thought ...
2
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0answers
25 views

Route a particular process over another gateway [duplicate]

I have 2 internet connections on differnet interfaces. I have eth0 which is internal ip of 192.168.1.70 and then I have another network connection to a different network which is on wlan0 ...
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5answers
20k views

Ubuntu 13.04 does not recognize USB drive

Using Ubuntu 13.04 (with Gnome 3), my new USB stick (details see dmesg/lsusb) doesn't show up automatically. Situation: The drive does not show up at fdisk -l The drive does appear when running ...
2
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2answers
428 views

How to associate a script at boot time to a specific run level?

I am trying to understand how run levels work. I understand the meaning of the 7 run levels and I understand that they were usually configured by /etc/inittab, which used to call /etc/init.d/rc, which ...
2
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2answers
2k views

Adding priority to the task permanently on Linux machine

How do I increase the priority for a task in Debian Linux system? After a little research I found that I can increase the priority to a task using nice command and if I want to increase the priority ...
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5answers
12k views

how to enable root user in linux(Ubuntu)?

In Linux (Ubuntu),I am going through with a lot of problems. In ubuntu, I haven't got any root user. So, I have to apply sudo bash at every Instance. I just want to create a root user, from which I ...
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2answers
1k views

nodm not working on bootup

I've setup and used nodm in the past (it is extremly simple and easy), but now cannot get it working. My base system is Ubuntu 13.04 server, but I have tried Debian and older Ubuntu servers as well. ...
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4answers
333 views

Adding KDE to Ubuntu

I seem to have installed KDE on Ubuntu 13.04 desktop, by issuing sudo apt-get install kompare. The reason was rather esoteric – I wanted to use the Kompare utility, that's all. My Ubuntu is ...
1
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1answer
133 views

Terminal application erased from Ubuntu 13

I had a bit of rough time with Ubuntu yesterday when the home screen went blank and no program icons or sidebars were visible. Today after recovering from it and saving the essential data, I have ...
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1answer
5k views

How do I generate an SNMP community string for MRTG?

I have trying to set up MRTG on my server, following this guide: https://help.ubuntu.com/community/MRTG I followed it as far as, cfgmaker ...
2
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1answer
126 views

How to specify a daemon shutdown command with upstart?

In an upstart configuration how do I define what command should be used to shutdown a server. Lets say I have daemon that has two seperate processes. startup.sh - to start the server shutdown.sh ...
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1answer
2k views

Installing php5-mcrypt for phpmyadmin

I am trying to install phpmyadmin on a server. Unfortunately, I get the following error: Reading package lists... Done Building dependency tree Reading state information... Done Some packages ...
0
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1answer
769 views

Different behavior of mktemp Ubuntu 12.02 / Mint 9 Isadora

In a bash script I use ImageMagick's convert command for doing some image processing. I generate a temporal gif file for convert to write to. I really need the file to have the .gif extension so ...
4
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1answer
5k views

dpkg: warning: 'ldconfig' not found in PATH or not executable - Ubuntu 12 - Vagrant

I am working on setting up a Vagrant / Puppet install so that new developers can have a clean development environment for our Rails project. The basic Vagrant configure commands are: config.vm.box ...
4
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2answers
2k views

setting a cronjob in IST time

I am trying to set a cronjob run in a different timezone. I've googled a lot and found editing /etc/default/cron is the way to go. But this file is deprecated and I see the following message, so I ...