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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13 views

How to install cognitive radio patch in ns2.31? [on hold]

how to create a patch file for cognitive radio network in Ns2
0
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1answer
19 views

Cant revert back to ubuntu from lubuntu

So this was my first time doing a dual boot in my computer and i successfully did install ubuntu. However, in ubuntu i curiously downloaded lubuntu (since someone said that it was faster since lubuntu ...
0
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1answer
14 views

Does an SFTP login get accounted for with `last`?

The title says it all. At first glance it dodoesn't show, but I also just learned about the existence of last as well.
1
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0answers
6 views

Auto-refresh NAS list in FreeRADIUS?

We're using FreeRADIUS to allow routers to our hotspot network: FreeRADIUS Version 2.1.12, for host x86_64-pc-linux-gnu, built on Feb 24 2014 at 14:57:57 We filter routers by their nasname in a ...
1
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1answer
16 views

Update single package from Ubuntu Utopic Unicorn when running Trusty Tahr

I'm tasked to update a package on a Ubuntu Server Trusty Tahr installation. Specifically rfc5766-turn-server which is really old on Trusty. https://launchpad.net/ubuntu/+source/rfc5766-turn-server ...
1
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1answer
16 views

text based tool for ldap queries

I need a way to do LDAP queries through a text based interface. I use jXplorer on my own machine but that is a graphical client. Btw, I'm running Ubuntu server 14.04. The background: A server in my ...
0
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1answer
19 views

rtl8723be Realtek Wifi-Card driver not working on Ubuntu 14.04

I installed Ubuntu 14.04 on my new Lenovo G50-70. The wifi works perfectly in windows, however it behaves strangely on Ubuntu. It is slow, doesn't load heavier sites at all, and after a while, ...
1
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0answers
11 views

Connect OpenVPN server on Ubuntu Guest VM

Setting up OpenVPN server on Ubuntu Server VM and trying to connect to it from HOST Windows 8 but had no luck. There is no connection. Whats wrong? Everything was did with this tut: ...
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0answers
10 views

Unable to type input to serial command interface

I am trying to communicate with a device with a serial command interface. dmesg shows that: [ 2465.467579] usb 3-1: FTDI USB Serial Device converter now attached to ttyUSB0 ls -pla /dev/ttyUSB* ...
2
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0answers
11 views

odroid/ubuntu - getting wlan to start

Im working with an 'odroid' fanless PC. The latest OS attempt on it is the stock Ubuntu 14.04 that comes with it. Have made some progress getting the networking (eth0) started but am having issues ...
1
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0answers
74 views

Get System Serial Number in Linux Machines [on hold]

How Can I get System Serial Numbers in Linux Machines ? i prefer to get this through a non root account and dont want to use external commands such as dmidecode or lhal Update I am working on a ...
3
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1answer
34 views

losetup /dev/loop0 disappears after some time

at the moment I do some tests with loop devices on Linux/Ubuntu. In a small test script I have the following commands: #!/bin/sh rm testfile.x dd if=/dev/zero of=testfile.x bs=1M count=1200 losetup ...
2
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2answers
46 views

How will apt-get handle my manual installed software?

Suppose the Emacs version in the APT repository is 24.3, I configure && make install my own emacs 24.4. After a long time, the software in the APT repository was updated to 24.5. What would ...
1
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2answers
36 views

Running ubuntu binary on CentOS with all shared libs installed results in ld SIGSEGV

I'm trying to get a binary compiled on Ubuntu to run on CentOS 7 (both 64bit, one host, the other vm). So far I've copied the binary with all the shared libs. I no longer get the missing library ...
1
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1answer
54 views

How do I know if I'm in a jail, container, snapshot, etc. environment? [duplicate]

I received a machine (Ubuntu 12.04 server) from a coworker when he left the company. I created my own user as sudo/admin and used the machine for months. After rebooting for the first time since I was ...
-3
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0answers
25 views

where could i find a quick explanation to network bridging? [on hold]

I would like to use haproxy as a load balancer for 2 backend servers. To keep the source ip addresses i have to use it with tproxy which means i have to make the haproxy load balancer into a ...
0
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0answers
34 views

Ubuntu remote desktop user using a key-based login

I have an Ubuntu 14.04 LTS set up and I have a which authenticates using a private key to connect via PuTTY. Is it possible to use remote desktop from windows 7 (xrdp) with key-based login?
2
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0answers
9 views

Why libpam-systemd run interactively on apt upgrade, even when specified force-confdef/force-confold

I upgrade my packages using aptitude, specifying the apt options --force-confdef and --force-confold. This generally works, but the package libpam-systemd (204-5ubuntu20.8, on Ubuntu 14.04) still ...
1
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1answer
37 views

Ubuntu runuser command?

I am creating a bash script that requires to run commands as a specific user. As a result I am using the command: runuser I have tested this script and it works perfectly in Ubuntu Server 14.10. ...
1
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1answer
29 views

Creating users with groups in Ubuntu Server? [closed]

Typically when I create a new user in CentOS / Redhat with the command: useradd user The permissions that it is assigned to the user typically works fine. I believe everything is restricted to its ...
3
votes
1answer
62 views

Ubuntu user disappeared from machine

Unsolved mystery - I was given a coworker's Ubuntu 12.04.1 LTS machine and set up my own (sudo/admin) user on there from the command line. I switched to my user (from his sudo/admin user) and ...
2
votes
1answer
25 views

number of open files configuration not operational

Addressing an error of Too many open files I was attempting to follow the suggestions here Although /etc/sysctl.conf fs.file-max = 70000 vm.swappiness = 10 and /etc/security/limits.conf nginx ...
1
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1answer
27 views

Accidentally deleted /bin/su

I was working in /bin on my Ubuntu system and ended up deleting su via a typing error while trying to do other editing. So now I have no way of swapping back and forth between users and root. I have ...
1
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0answers
36 views
+100

Cannot connect PC and Android through bluetooth

I want to create a simple client/server app using bluetooth. I want to use an android as client and a Linux Mint 17 Cinnamon 64 bit as server. I found and adapted this script : import os import ...
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0answers
27 views

How do I get the wallpaper to fit the width of my dual monitor setup in ubuntu?

The wallpaper I'm using doesn't fit the exact dimensions of my monitors combined, so when I set the wallpaper option to span I get black bars on the far right and left with the image centered in the ...
0
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0answers
19 views

Triple-boot on Windows 7 machine with manual partition table, how to proceed?

I have a Dell Latitude E5440 laptop with Windows 7 64-bit Professional pre-installed on it. My aim is to have Fedora 20 64-bit with a stable kernel and Ubuntu 14.04.1 LTS 64-bit alongside Windows 7. I ...
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0answers
27 views

What is wrong with this upstart script?

I use the following upstart script: description "myjob" # Start up when the system hits any normal runlevel, and # shuts down when the system goes to shutdown or reboot. start on filesystem or ...
1
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2answers
29 views

What to do if you accidentally delete /var/spool/mqueue

Due to a bug in another script, there were 1000's of mails in var/spool/mqueue. I read somewhere that one should delete /var/spool/mqueue to prevent the messages from being sent. Unfortunately, ...
0
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0answers
25 views

How to read the console output?

In "upstart" you can add the following line to your conf file: console output It seems my script is stopped / waiting. How can I see what has been written to the console. I have access only to the ...
0
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1answer
31 views

Understanding linux Bridging

I have started learning networking and recently been through bridging in Linux. Bridge in Linux could be set in two ways as far as I have got by reading on internet i.e. either by bridge-utils ...
1
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1answer
52 views

SMBFS Mount suddenly stopped working. CIFS error

When I came in to work today, a mounted drive on our server suddenly had stopped working. In my /etc/fstab I have the following line: //172.22.64.50/Web/ /mnt/netapp smbfs ...
1
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1answer
53 views

Fix Skype audio input in Mint 17 Cinnamon

Linux Mint 17 Cinnamon (Ubuntu 14.04) HDA Intel PCH The microphone works well (tested with VLC's capture mode), but Skype won't catch any sound. Only PulseAudio is listed in Skype's configuration as ...
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0answers
20 views

Set default editor for 'info coreutils' [duplicate]

I'm using Ubuntu 14.04 and have this in my .bash_profile: export EDITOR=/usr/bin/vim export VISUAL=/usr/bin/vim man respects this setting but info always opens in something else, nano or it's own ...
0
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0answers
20 views

API for Ubuntu Linux utility panel

I want to build an application that integrates with the top menu bar on Ubuntu. Where if you click the icon you get a dynamically created drop down menu. Everpad does this and here's an example of ...
0
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0answers
30 views

How to properly install Apache, MySQL, and PHP on Ubuntu 10.4

I have followed a guide on how to install Apache, MySQL, and PHP on my laptop running Linux (Ubuntu 10.4) It appears I have it installed correctly but when I am not sure. I followed this guide here: ...
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0answers
28 views

Intermittent, temporary freezing

I just got na SSD for my desktop, and decided I'd install Linux on it, for a change from Windows. The problem is, I've tried Ubuntu 14.04 and Fedora 20, and on both, in the install environment and ...
0
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0answers
58 views

Strange bash sytax error depending on sudo usage

I made this bash function to detect if the user running is actually logged in as root user and not using sudo by checking the uid + home directory of the user executing the command: #!/bin/bash set ...
0
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0answers
17 views

Greek dictionary in LibreOffice

I've installed LibreOffice Version: 4.3.3.2. On Calc, I try to write in Greek but the Spell Checking put a red line bellow every word. I went on Tools -> Spelling -> Options and add there the Greek ...
3
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0answers
24 views

high precision subsecond cronjob replacement

I am looking for a cron replacement which could run subsecond schedule, is there have any "still alive" project which serve this purpose? Currently running Ubuntu 14
2
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1answer
64 views

Mounting alternate devices (with different mount options) at the same mount point

I have a server (running Ubuntu 14.04) that has a hot-swap drive bay. I typically use the hot-swap bay to mount one of a bunch of loose hard disks that I shuttle large scientific datasets around on. ...
0
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0answers
28 views

Install Ubuntu live USB to USB or computer

I have a live USB with Ubuntu 14.04 with things I have installed and deleted, and preferences that I've changed on it, and am wondering if it's possible to install Ubuntu onto either another USB, or ...
0
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2answers
26 views

Restarting youtube-dl

I feel like this should be a really simple thing to do, but I don't know how to do it. I recently updated the config file for youtube-dl and I also upgraded to the latest version. The update message ...
1
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1answer
92 views

Nmap script execution to detect heartbleed is failing

Wanting to setup Nmap on my Ubuntu 14.04 LTS system to detect HeartBleed vulnerability. I followed the instructions here: ...
1
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0answers
42 views

Accessing Macintosh HD from Ubuntu

So after I upgraded my MBP to Yosemite, I have lost dualboot. After a long struggle, I finally reinstalled refind to work properly. Unfortuantelly, when I use Ubuntu, I cannot access Macintosh HD ...
0
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2answers
45 views

Ubuntu cannot find or detect new wired network adapter

I want to use two ethernet cards on my machine. So I've physically inserted the new ethernet card in to my machine. However when enter the ifconfig -a command Ubuntu cannot find or detect the new ...
1
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1answer
51 views

Adding multiple user with shell script on Ubuntu

Can someone help me in providing me the shell script for creating multiple users on Ubuntu. Password needs to be different for each user. Thanks in advance
0
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1answer
36 views

Broadcom: not able to see my wifi

I recently installed Ubuntu 14.04 on a computer with a Broadcom BCM4312 802.11b/g LP-PHY wireless card. After installing the proprietary drivers available from the Ubuntu repositories, I was able to ...
1
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1answer
95 views

Network interface not registring ARP response

I have a server with two NIC and it's running Ubuntu Server 14.04. The first one is the interface "p3p1" and it's connected to the subnet 192.168.1.0/24 with the IP 192.168.1.100. The second one is ...
0
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0answers
26 views

how to fix a port no statically for client request on client side?

I have an assignment to implement: unicast multicast broadcast in Java socket programming. While implementing the multicast part I decided to do it on my own system itself, so for the purpose of ...
1
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1answer
34 views

How to change the shortcut directories in Files?

I'd like to redirect the documents, downloads, music, and videos that are on the sidebar of the files application to another location that is in another partition. So far my Internet research have ...