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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How to have tmux on startup for both OSX and Ubuntu (including Quake)

I recently updated my Ubuntu 14 system and the update has made it impossible to have tmux started up automatically. In fact the previous setting made it impossible to log into my Ubuntu account(!), ...
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2answers
55 views

why can't we install application compiled for Ubuntu, on Linux mint, or some other distros with same kernel?

When i try to download some applications like VLC, it shows in download options, various Operating systems which includes Linux mint, Ubuntu etc. Though Linux mint's kernel is from Ubuntu, still they ...
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1answer
338 views

Multiple RSA server certificates not allowed

I purchased a multidomain certificate, and I was trying to install it on my server. I put the following information inside the virtual host for one of my sites: <VirtualHost *:443> ... ...
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2answers
109 views

Prevent Language selection at ubuntu installation

I would like to make a completely unattended installation of Ubuntu Server 14.04 from an USB drive where I extracted the ubuntu-14.04.2-server.iso In /syslinux/txt.cfg of the USB drive, I added the ...
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1answer
39 views

Installing Linux with USB on Mac

I am trying to get Ubuntu (version 14 I believe. It's the latest version) installed on my Macbook Pro (Late 2013 edition 13 inch, no disk drive in it) via a USB Flashdrive. I have followed every ...
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1answer
133 views

Hide curl output [duplicate]

I'm making a curl request where it displays an html output in the console like this <b>Warning</b>: Cannot modify header information - headers already sent by (output started at ...
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2answers
91 views

How to extend filesystem partition on Ubuntu VM?

I'm running Ubuntu Desktop 14.04 as a VM on a mac with vmware fusion. I'm getting space warning issues and now want to expand from 20GB to 200GB. I powered off the VM and on the vmware side ...
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1answer
48 views

Unable to access another server over local network on Digital Ocean

I have two servers. Let's call them A and B. Both are running ubuntu server 14.04. B runs percona server. Now I do not have any firewall set-up on either servers still I am unable to connect to server ...
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1answer
76 views

How to force nm-tool to update its DNS servers

Using Ubuntu 14.04LTS and having a problem with changing DNS. I can change servers in the /etc/resoolvconf/resolv.conf.d/base and head files and restart resolvconf using sudo resolvconf -u and it will ...
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0answers
45 views

Ubuntu on dell chomebook 11 crash on install*

I recently got a dell chromebook 11. I promptly installed crouton. then croutons had sound errors so I uninstalled it and decided on chrubuntu. It worked until it a lot crashed as Well. Finally I ...
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3answers
231 views

Starting a process from one terminal from another terminal

I was wondering of there is any method to start a new process or a program from one terminal into other. What I mean is: Let's say I have to run gedit abc.txt, but I don't want it to block my current ...
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1answer
48 views

How do I diagnose why a VPS is freezing?

I have a Ubuntu 14.04 VPS (1cpu, 512MB ram, swap 1024MB) with Apache, mySQL, sendmail and sshd, sometime it freeze, I can't access neither through ssh nor with VNC provided by the vps provider, the ...
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1answer
149 views

Problems with postfix/dovecot unable to receive mail

Can't receive mail on my server but can send just fine. From what I can tell in the logs, it complains about timing out. I check the connection externally using telnet from my PC, I can connect to ...
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14 views

Subversion server on ubuntu with mutiple repositories and checkout problem

I have 3 customers, FirmA, FirmB and FirmC. Under directory /srv I've created three subdirectories, FirmA, FirmB and FirmC that will act as a svn root for every firm. Inside svn root directories I've ...
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1answer
59 views

Debhelper recursive dependency

Unfortunately, debhelper has a recursive dependency. When I try to install with apt-get source --compile debhelper, it says: Reading package lists... Done Building dependency tree Reading ...
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0answers
24 views

Run ssh-agent 24/7 using keychain?

I have a Node.js script that requires ssh-agent to be running 24/7 on my Ubuntu server. I installed keychain and put eval 'keychain --eval id_rsa into my ~/.bash_profile, but that only runs when I ssh ...
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1answer
36 views

Understanding home folder permission

thisisme@ubuntu:/home$ ls -al total 28 drwxr-xr-x 4 root root 4096 4月 19 2012 . drwxr-xr-x 24 root root 4096 4月 9 12:34 .. drwxr-xr-x 66 thisisme thisisme 4096 4月 12 ...
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1answer
27 views

Ubuntu 14.04 - Force using home and end as keyboard shortcuts

I'd like to be able to use the Home and End keys as shortcuts, but Ubuntu's settings absolutely refuse to let you do so by normal means because it'll become "impossible to type using this key." - ...
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1answer
220 views

Missing panel icons in elementary OS Luna

Dropbox, Network (Wi-fi) and Mega icons are gone. I don't know how it happened, perhaps an apt-get update or something. Those icons should be placed besides that volume icon. What I have to do to ...
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2answers
123 views

kernel compilation in ubuntu, reboot msg “gave up waiting for root device”

I was trying to compile Linux kernel from source file i.e. 3.19.3 kernel version I ran the following commands for compilation first I extracted tar -xvf linux-3.19.3.tar.xz changed to its ...
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2answers
73 views

Shell script to find number of vowels in script

This is the script: clear echo read str len=`expr length $str` count=0 while [ $len -gt 0 ] do ch=`echo $str | cut -c $len` case $ch in [(aeiouAEIOU)] count=`expr $count + ...
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1answer
40 views

Cron job * is replaced by file name in current directory [duplicate]

This is my first shell script program, so i think this is more likely a silly question for you all. Overview of problem My need is to write a shell command for installing our Node.js server. ...
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1answer
2k views

Disable login screen on Ubuntu 15.04 (Vivid Vervet)

In 15.04 Vivid Vervet, how do I disable the login screen so that it drops me into a console right off the bat? Back on 14.04, I did this by uninstalling lightdm, but when I tried that on 15.04, the ...
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0answers
119 views

Force OpenSSH / pam / pam_ldapd to do pam_ldapd(sshd:auth) with public-key authentication

I have working pam_ldap authentication using libpam_ldapd. I'm using slapo-nssov and want to use loginStatus attribute which is added to users ldap entry after opening pam session and deleted when its ...
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23 views

date advancing quickly ubuntu 14

after an upgrade of my server from ubuntu 12.04 LTS to ubuntu 14.04 LTS my system date is advancing quickly (taking 1h every 10 minutes). I tryied to install an ntp server to correct date but no way ...
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81 views

Incorrect installation of python-2.7.2 - cannot use zlib

I am installing python 2.7.2 from Python-2.7.2.tar on Linux Ubuntu-14.04. I untar it, then ./configure --prefix=/apps/python/install/2.7.2. I then make and get : Python build finished, but the ...
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1answer
97 views

Configure Ubuntu to always start with terminal & Xload open?

Does anyone know how to configure Ubuntu 14.04 so that when it starts up I have a terminal window open (at my specified x,y coordinates and specified width and height), and the Xload application also ...
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53 views

find the cause of file corruption when copying files to a network share on an Ubuntu machine

I am copying files from my SD card to my Ubuntu server via Windows 7 using a network drive. The problem is that sometimes, 2 files out of 150, are corrupted during transfer. See here 2 example files ...
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81 views

Packets drops seen in physical interface while using kvm bridge

In ubuntu kvm hypervisor we are seeing packet drops in the physical interfaces once we create the bridge. Below is the output of ifconfig, br1 Link encap:Ethernet HWaddr xx:xx:xx:xx:xx:xx ...
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61 views

Error installing Ubuntu on VirtualBox

I'm trying to install many different versions of Ubuntu (12.04/14.04, amd64/x86, server/desktop, etc.) on VirtualBox 14.3.26 on OSX 10.10 and I'm getting the following error: [ 0.000000] Fast TSC ...
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1answer
33 views

Tool to list every e-mail detail sent from a server

Introduction: I have a specific problem with an Ubuntu server where some security leak allowed spammers to use the server to send e-mail. I fixed most of the problems (caused by some unsecured ...
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20 views

Clone Linux from One laptop to another [duplicate]

I have Ubuntu 10.10 in my laptop [i5 3rd generation]. It has some EDA's. Now can I clone it to another laptop [i5 2nd generation]. If yes, Can someone please take some time and explain the procedure. ...
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35 views

Missing Close/Max/Min icons in Nautilus in ubuntu Gnome

I've installed Ubuntu 13.04 GNOME and i can't see no Close/Max/Min icons in full size of nautilus.. how can i fix it?
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1answer
33 views

GRUB is not working

I've installed ubuntu alongside windows7 in laptop. When I restart after installation, it is directly entering Ubuntu OS. It is not showing the option which OS to choose. Windows is not deleted ...
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1answer
41 views

Why do the two scripts work for waking from suspension?

My Ubuntu 14.04 on Thinkpad T400 sometimes (but not always) can't wake up from suspension. While I am still suspecting my graphic controller's driver, I found two scripts (here and here). I don't ...
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1answer
109 views

cp: cannot stat error - when filename has Asian characters

I am simply trying to copy files using cp -r /home/user/source/ /home/user/destination/ but it throws me the cp: cannot stat /source/filename.xxx error for some of the files. When I searched for this ...
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2answers
78 views

How can I alert on completion of a long task over ssh?

My desktop is Ubuntu, which has the handy program notify-send, which pops up an alert on the desktop. It also has the following handy alias built in: $ type alert alert is aliased to `notify-send ...
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1answer
148 views

Ubuntu Postfix Open LDAP integration - no SASL authentication mechanisms

Ive followed all the steps in https://help.ubuntu.com/community/Postfix/DovecotLDAP but I am getting a localhost postfix/smtpd[12520]: fatal: no SASL authentication mechanisms in my ...
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1answer
130 views

Linux kernel version suffix + CONFIG_LOCALVERSION

On system start up I currently see Linux 4.0.0-rc6yy and 4.0.0-rc6yy.old from the bootloader menu. I'm not certain where they came from. I suspect "yy" is arbitrary but can someone explain the ".old" ...
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1answer
211 views

Troubleshooting SSH on Ubuntu Server

I am trying to setup SSH-key authentication on Digital Ocean Cloud server. I first added my rsa_id.pub to my account and autoloaded it to the ubuntu droplet when I created it. There seems to be an ...
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1answer
99 views

Is my server being used as a proxy or malicious requests?

I have an Ubuntu, Apache, Passenger, and Rails 4 project on AWS EC2. I am a beginner full stack developer and am unfamiliar with the security and server side of my project. This is my first time ...
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5 views

I need help booting in to GRUB. 13.04 [duplicate]

I need help booting in to grub in 13.10. I cant get to grub. I didn't exactly install Ubuntu. It was preinstalled for my specific pc (its a smart book from Taiwan) and I copied it to my SD card ...
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1answer
80 views

Mysql exited with status 1 and restarted every 24 hours? How to debug?

After upgrade, MySQL on Ubuntu 14.04 keeps crashing and is restarted every 24 hours according to the dmesg. I would expect to some reason for the failure in MySQL logs, but all are empty. Any ideas ...
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2answers
143 views

Installing an unauthorized wifi card in a Lenovo thinkpad edge 14

I took out a my Intel dual band Wireless AC 7260 card model number 7260HMW from another laptop. I wanted to install it in my thinkpad. Upon doing so and rebooting, the computer said unauthorized wifi ...
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2answers
33 views

Can't find emails retrieved by fetchmail

So I set up fetchmail to retrieve emails with IMAP from a remote mail server, I was able to run it. How can I know that it found any emails or not since I did send test emails to the account being ...
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55 views

postfix some users can send mail to the (distribution lists) and other users not

How can I do the following things: Some users can send mail to the mailing list (distribution lists) and other users not. For example: the everyone@mycomp.com will be able to send e-mails only for ...
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2answers
46 views

Package deb dependencies unmet error

I am trying to install deb package in a new AWS 14.04 ami instance, but it fail with the following error - The following packages have unmet dependencies: youtube-snapshot-taker : Depends: firefox ...
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1answer
48 views

Is it possible to access opened gnome terminal session in text console?

I am running Ubuntu 14.04. My desktop environment (compiz and unity) sometimes becomes frozen, which makes it difficult to save my work including text editing in emacs running in gnome terminal. ...
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1answer
130 views

Shell script to compare two tables and perform operations on their columns

I have two tables like the following: Table 1 TABLE_NAME COUNT ------------------------------ ------------ AIN_EDP_SCRIPT 33 AMA_CALLTYPE_LOOKUP ...
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1answer
88 views

How to move mysql database and mysql server to another machine

I am having Ubuntu 14.04 desktop in which i develop software. Due to some reasons my hard disk has developed many bad sectors. I want to move my mysql server software and all the databases to a new ...