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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Vim R plugin installation problem on Ubuntu in Android phone

There was another thread on vim-R-plugin but since it was bit old, I started this new thread. Also my situation is kind of different, since I am trying this on a mobile device, Samsung vibrate. I ...
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1answer
103 views

changing the partition of a linux

I have a ubuntu system as a virtual system on Virtual Box. It uses VHD as its hard disk. I manged to change the size of VHD using VHD resizer, now I want to expand the partition on vhd so it uses the ...
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0answers
194 views

Upstart: How to respond to startup of a service, thats not part of Upstart?

I'm running Ubuntu server and playing around with Upstart. I have installed PostgreSQL database server which doesn't use Upstart system, however im also writting an Upstart script that starts another ...
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1answer
922 views

Xen / Grub2 - Domain 0 allocation causes boot panic

Current setup / versions : Ubuntu Desktop 12.04 Linux 3.2.0-32 Xen 4.1-amd64 Grub2 After following the documentation to set up xen-hypervisor-amd64 and configuring grub2, when I reboot I get the ...
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3answers
2k views

How to limit ssh access for localhost only?

I need to forbid ssh access (except localhost) for specified user. So. ssh localhost should work. ssh hostname from outside should not work for that user. All other users should work as usual.
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3answers
3k views

RAID5 recovery trying with “mdadm --create … missing”

First how I got in this situation: I had an RAID5 array with disks each 2TB (external USB-disks), I then wanted to create a larger encrypted array. Therefore I got 2 additional disks (also 2 TB each) ...
3
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1answer
90 views

Do I need a new zone for each domain I have on my server?

I currently have a working BIND nameserver Running on my dedicated ubuntu server box. I have one zone set up.. example.com with its own nameservers. If I want to add a new domain to point to the ...
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3answers
112 views

stopping ubuntu to offer update

I installed an ubuntu 10.4 and I don't want to update to version 12.xx, but the system offering me to update everysome times. Is there any way that I can stop Ubuntu to offer me the update?
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1answer
486 views

Execution time of pi calculation in shell scripts

I have to run a couple of command lines on a shell script on Ubuntu, one of those is a pi calculation. It works fine when i run it on terminal via the following cmd line: time echo ...
1
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1answer
323 views

Trying to run Virtualbox under NX session: getting permission denied

I am running Nomachine NX server on my Ubuntu 12.04, and I'm connecting from a Windows 7 machine using NX client. When I try to start VirtualBox, I get a permission denied error. The same user that ...
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2answers
2k views

How do I find the process generating a lot of network traffic?

My machine is generating a lot of network traffic, all from the same source port, with many different destinations (found this out by running iftop -P, and from my router's logs). How do I find the ...
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2answers
3k views

/dev/md127 refuses to stop. No open files

So I'm trying to stop /dev/md127 on my Ubuntu 12.10 box. It was set up as RAID1, but I'm trying to move everything (well, rename) to md0. I read that renaming isn't possible, so I'm trying to remove ...
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3answers
1k views

Ask root for password when using su command

I'm trying to edit /etc/sudoers via visudo, but I don't know how to change the root rights. I want root to be prompted for the user1's password, when he tries to use su user1.
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4answers
9k views

invalid SSL_version specified at /usr/share/perl5/IO/Socket/SSL.pm line 332

Since I upgraded my PC from (k)ubuntu 12.04 to 12.10 I receive this error message when trying to send an email using sendemail. Installing an older version of IO::Socket::SSL is not an option. I ...
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0answers
373 views

Ubuntu Server goes to standby mode

I am using Ubuntu Server 12.04 in a virtual machine (VMware Workstation) and it seems like the system goes to standby, at least the first request on a webserver installed on it takes quite long and ...
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2answers
8k views

How to boot EFI kernel using QEMU (kvm)?

Hey guys I'm trying to emulate a EFI enviroment using QEMU (kmv), virtualbox takes 15 minutes to boot in EFI mode using archboot. Using legacy BIOS mode I can boot using this command: ...
3
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1answer
2k views

nsswitch.conf versus host.conf

Suppose that /etc/nsswitch.conf file contains hosts: files dns and /etc/host.conf file has order bind,hosts then in which order the system would use /etc/hosts and DNS look-up to resolve a host ...
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3answers
3k views

How do I “merge” two text files?

I recently upgraded from Ubuntu 12.04 to 12.10 and at one point, it encountered an Apache config file conflict in apache2.conf. I didn't give me a merge option at that point, so I just rejected the ...
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1answer
1k views

Ubuntu 12.04 c++ development system install

I am trying to install the Intel Parallel Studio 2013 on Ubuntu 12.04. During installation I received a failure notice that the command g++ was missing. I asked Intel and they indicated that the C++ ...
4
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3answers
2k views

Performing accurate snapshot and incremental backups to a remote server

I have a few Ubuntu (and potentially RHEL) servers I'd like to back up to a central backup server (via rsh/SSH). I'd like to do both snapshot and incremental backups. The goal is that if one of the ...
1
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1answer
265 views

Ubuntu Could not purge package

I've tried to install oracle-java7-installer package from custom repository onto Ubuntu 12. It was failed during executing some post-installation script. So. I want just to rollback it and proceed ...
1
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1answer
169 views

/ is out of blocks, can't find out why [duplicate]

Possible Duplicate: How can I diagnose and repair missing drive space? root@database:/# treesize -x 2>/dev/null 1.1 GB . 757.1 MB ./usr 232.0 MB ./lib 97.2 MB ./var 29.0 MB ./boot 6.3 MB ...
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2answers
582 views

Portforwarding on LAN

I have a server with Zentyal 3.0 (Ubuntu 12.04 LTS). I have 2 lancard (eth0 - internet, eth1 - LAN), a DNS (sz**.myftp.org). The portforward works, but when I aks a request for DNS address or outer ...
4
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1answer
1k views

Using Atlas from scipy

I installed Ubuntu 12.04 64 bit. I need to work with python and scipy, I installed them and when I run the test: python -c "import scipy; scipy.test()" I get the message: ImportError: ...
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4answers
27k views

File permission issues with shared folders under Virtual Box (Ubuntu Guest, Windows Host)

I am using Ubuntu on Virtual Box and I have a folder which is shared between the host (Windows) and the VM (Ubuntu). When I open any file in the share folder in Ubuntu, I can not change it as its ...
3
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2answers
207 views

What is the proper solution to a web server trying to write to a directory?

So, I have a box with a "deploy" user. This deploy user owns a code repository and wordpress is running on this box... When wordpress attempts to do something like upload a plugin, it is using the ...
2
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1answer
475 views

Connecting to a WPA2 LAN on Ubuntu with Fluxbox

I'm trying to connect to a new network with Ubuntu 12.04 and fluxbox, and I'm not sure how to get it working. In the fluxbox menu there aren't any wlan-tools or network-manager, and since I'm not on ...
6
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4answers
3k views

When does chmod fail?

Under what circumstances will chmod fail? I looked at the man page but it only specifies usage and doesn't go into details about what circumstances it won't work in. I'd assume chmod will work if: ...
2
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2answers
313 views

Finding root password

I installed a Ubuntu and it only has a user. I can login to the system without login. It doesn't ask me for un/pwd. but when I am in, and I want to run some commands as root (sudo), it ask for ...
6
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2answers
188 views

du command show a slash after directories?

How to use du command show a slash after directories? For example: du -ab /root/test/php-5.4.8/ Result: 1781 /root/test/php-5.4.8/main/internal_functions.c.in 973596 ...
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0answers
89 views

Ubuntu 10.04 LTS hangs at 43% of preparing to partition raid 1drives

I have set up hardware raid 1 with two SAS drives using the Adptec 6405E controller. I am having a problem when installing Ubuntu 10.04 LTS as it hangs at 43 % when partitioning disk drives. So far ...
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1answer
317 views

Installing USR 5422 on Ubuntu 12.04

I am a newbie to Linux. I was trying to set up the USR5422 USB adapter. It worked fine for the first time, but since then it freezes the computer most of the time. What commands can I fire to see ...
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1answer
8k views

Lightdm user session settings on Ubuntu

Lightdm is displayed properly but after entering a password and clicking login, I see the screen blink and lightdm window re-appears and asks to log in as if nothing happened. Configs user@laptop:~$ ...
7
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2answers
1k views

autofs with sshfs not working anymore [closed]

I just upgraded from Ubuntu 12.04 to 12.10. Before that I backed up my autofs config which worked fine. I appended the line from my old /etc/auto.master to the new one: +dir:/etc/auto.master.d ...
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0answers
327 views

Connect to a VPN from a Linux Virtual Machine

I am running an Ubuntu distro inside a VMWare virtual machine with a bridged connection on a Windows 7 host. What I am trying to do is to have the virtual machine connect to a VPN, but I'm not having ...
3
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2answers
335 views

Crunchbang does not see existing Ubuntu installation

I recently installed Crunchbang 11 in the free space of a hard disk of an Asus netbook that already had Ubuntu installed on it. I partitioned the 2 distros separately, with only a common swap space. ...
3
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1answer
396 views

Mounting USB camera on Ubuntu

I am quite new at Linux and I have to install this SwissRanger camera on Ubuntu. I am trying to follow their USB mounting instructions and I got stuck. From the instructions: Modify the usbdevfs ...
2
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1answer
414 views

Specific directory permission for one user using sftp

My web server structure looks like this: /Home/User/Public_Html/Website_one /Website_two /Website_three/Directory_one ...
6
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3answers
3k 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
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1answer
938 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
461 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
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1answer
235 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
344 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 ...
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4answers
1k 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, ...
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1answer
386 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 ...
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0answers
105 views

Install Rails on linux

I am trying to install Ruby on Rails and I have followed the following link for the install ...
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0answers
317 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
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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 ...
2
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1answer
434 views

Xubuntu 12.04: slow login

I'm running Xubuntu 12.04, and after I ran the update, my login started slowing down big time. I've dabbled a little bit with the programs in Settings -> Settings Manager -> Session and Startup, and ...
7
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2answers
911 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 ...