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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When I download something and use “Show in folder” option, it doesn't work correctly

When I download anything using Google Chrome or Mozilla Firefox and I use the "Show in folder" option (or "Open Containing Folder" in case of Firefox) it does not work correctly, instead, it open the ...
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1answer
90 views

How do I update Ubuntu when package system is broken?

I have been trying to update Gallium OS (which is based on Ubuntu), however, I keep on getting error messages. Any help would be appreciated. Please see a screenshot of the error message below: I ...
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2answers
41 views

cat doesn't join my files when I run inside script

I'm doing a restore backups script, and when I try to join files which are splitted, cat prints that error: cat: fullbackup_mrbsNuevo_15_6_2016.tar.gz.*: No such file or directory The line that ...
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1answer
31 views

How to Run `reinstall xkb-data` for Broken Installation in Live USB?

I would like to run the following command for the installation that has broken /usr/share/X11/xkb/symbols/us. Editing the file, restarting, just puts the false parameters there back again and again. ...
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0answers
26 views

NFS doesn't seem to work because of files not being found

I'm using the vagrant box files from this tutorial. When changing the projectname in all those files and fixing 1,2 small erros I used vagrant up to init the box. At some point the bootstrap.sh ...
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13 views

How to modify Ubuntu update-manager in IDE

I have downloaded the source code from update-manager via apt-get source command and now I'd like to edit it. Is there any IDE to import this package source to the IDE? Thanks in advance.
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2answers
55 views

Using `sem` to make a script run in parallel

I have the following shell script (one liner), which I wanted to use to identify directories that have the exact same contents. I'm using it, to identify and remove duplicate (child) directories. ...
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0answers
13 views

how to calculate TIME+ and also where i can find SHR?is there any formula for these things

i am implementing my own top command.is there any formula for calculating TIME+? and also how to find shared memory of each process(SHR). i cannot find anything in proc.
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1answer
77 views

Puzzle with compilation of default.aspx.cs under Ubuntu 16.04 failing upon http://127.0.0.1/default.aspx

I would like to know why compilation of default.aspx.cs under Ubuntu Linux 16.04 with a code behind pointing to default.aspx.cs fails when I enter http://127.0.0.1/default.aspx at the web browser. ...
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0answers
61 views

Problem installing nvidia driver 920M on ubuntu 14.04

I am a Linux beginner. I installed ubuntu 14.04 alongside win10, on my new asus laptop. My system is powered by a geforce 920M. The problem is that after I install the nvidia driver (The system ...
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0answers
34 views

VMware Mac OS X 10.11 on Ubuntu Shared Connection Problem

I've just installed Mac OS X El Capitan 10.11 on my Ubuntu host pc and I cannot connect to the Internet, when I go to settings in Mac OS it just displays no ethernet connection is found. How can I ...
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1answer
34 views

On Ubuntu Linux 16.04, what file is the Apache2 AcceptMutex directive currently set in?

On Ubuntu Linux 16.04, what file is the Apache2 AcceptMutex directive currently set in? The reason we need to know this is to create the LockFile necessary to create additional VirtualHosts such as ...
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0answers
43 views

Browse remote machine files in Nautilus

I'm running old Debian machine: Distributor ID: Debian Description: Debian GNU/Linux 5.0.2 (lenny) Release: 5.0.2 Codename: lenny And I'm using Nautilus file browser in it: I'm missing "...
2
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1answer
39 views

Upgraded from Ubuntu 14.04 to 15.1 and I end up at a command line at restart. What do I do now? [closed]

[This problem did not go away on its own and it wasn't a typo correction that solved it either. That being said I understand if you delete it b/c of the poor solution explanation. In a nut shell the ...
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2answers
41 views

How do I make a server automatically move files?

I have a folder and I would like all the files that are put into that folder to instantly be moved to another folder. Is this possible.
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0answers
26 views

Magento can't send mails using postfix on ubuntu

For some reason mail() function fails when we try to send emails, I debugged the Magento base code and I found that it generates a call to mail function like this: $result = mail('test@test.net', 'My ...
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1answer
58 views

Installing s3fuse on Ubuntu ( bitnami ec2) [closed]

I am installing s3fs-fuse on Ubuntu 14.04 ( Bitnami - EC2). Actually I want to mount S3 bucket. I installed the required dependencies successfully by running following command apt-get install build-...
3
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1answer
72 views

PAM failing to authenticate sudo, after successfully contacting ssh-agent

Setting up PAM sudo authentication, using ssh-agent, on 14.04.1-Ubuntu server LTS. I'm still unable to successfully authenticate sudo, via the ssh-agent, using PAM. Here are my relevant /var/log/...
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0answers
50 views

Apache 2.0 Automatic hosting and virtual hosts on Ubuntu 16.04 Alpha distribution

I just finished reading the following articles: [http://www.mono-project.com/docs/web/mod_mono-autoconfiguration/] [apache virtualhost using mono-apache-server2 not mono-apache-server4 The www.mono-...
2
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1answer
42 views

New Linux User, Where do I begin and how do I master the OS [closed]

I am fairly new to the Linux OS. I'm being asked to learn the OS (Ubuntu & Fedora) for computational science purposes. The problem isn't getting involved or into the OS, but I don't exactly know ...
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0answers
14 views

Setup RHEL 7 to PXE boot Ubuntu netboot

I'm looking to learn how to setup a RHEL 7 VM instance to PXE boot Ubuntu (and possibly other distros). The VM will be created by the network team at work. They don't have time or knowledge to setup a ...
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2answers
33 views

Client route for OpenVPN Access Server

I am running OpenVPN Access Server and I'd like to push a route to every client on connection that is the equivalent of: sudo ip route add 172.17.0.0/24 via 172.27.232.1 Where should I go to set ...
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1answer
36 views

Finding edited system files

I am installing a new OS (old = Ubuntu 12.04; new = Ubuntu 16.06). I want to be able to back-up any system files I have edited on the old system but don't know all the ones I have updated. How would I ...
1
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1answer
49 views

Use SWAP as disk cache in Linux

I am using different kind of disks on my server. Is it possible to use faster disk as SWAP and ask Linux to use it as Disk cache As I understand Linux use SWAP only for application data not disk ...
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0answers
31 views

Calculating the total traffic generated by an application in a network

I have network (shown above) with the same application (Appx) running on the nodes (Linux nodes). This Appx has data to send the same copy of the Appx running in each node (i.e. each Appx generates ...
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0answers
23 views

Execute custom script when wireless NIC connects to SSID

I have pieced together two scripts that will serve to execute a custom script when my wireless NIC connects to an SSID. Firstly, I will add the following (notice the post-up section): auto eth0 ...
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0answers
44 views

How to change dropdown color in Firefox on Ubuntu?

I've updated Firefox recently, and the background color of the suggestions dropdown menu has changed from white to dark-gray (desktop theme default). How do I change it back to white? I've created a ...
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2answers
133 views

Strange things happen when I close my laptop lid

I recently bought a new HP Spectre x360 laptop and installed Linux (Ubuntu 16.04 LTS 64 bit) for the first time. I have noticed a few small bugs but something very strange happens when I shut the ...
7
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3answers
314 views

How to harden su with dpkg-statoverride?

I am reading an Ubuntu 14 hardening guide and this is one of the suggestions: It generally seems like a sensible idea to make sure that only users in the sudo group are able to run the su ...
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0answers
18 views

Cannot find install-kernel-pkg

I am running Ubuntu 16.04 and am experimenting with building the kernel from source. I am at the step where I want to install the kernel using: new-kernel-pkg --mkinitrd --install --make-default --...
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2answers
51 views

How to restart network in ubuntu server 14.04.04?

I tried using service network restart and /etc/init.d/networking restart, what command could I use now?
3
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1answer
111 views

unable to install anything using apt-get because of insserv

Whenever I try to install something using apt-get I get the error messages involving insserv. I have tried install many different packages but everything give same error. And apparently, CUPS package ...
2
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0answers
25 views

VPN with iptables and routing: access port from local network

I use a commercial VPN provider with OpenVPN as client on Ubuntu Server 14.04 LTS (but doing some testing on 16.04 LTS too). I have configured iptables and routing tables to mark packets based on user ...
3
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2answers
133 views

Installing Skype in Ubuntu

I'm new to Linux. I have Ubuntu 16.04 LTS installed. I'm trying to install Skype. I downloaded the package: skype-ubuntu-precise_4.3.0.37-1_i386 When I open the package, I'm taken to a window that ...
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0answers
52 views

Serve ASP.NET Webforms content on Ubuntu 16.04 from 2 different root directories using one XSP4 child process?

We would like to serve ASP.NET Webforms content on Ubuntu 16.04 from 2 different root directories using one XSP4 child process. In /etc/mono-server4, I created debian.webapp specifying root ...
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1answer
41 views

rtcwake not working on Ubuntu 14.04 installed on MacBook Air (mid 2012)

I have installed Ubuntu 14.04 GNU/Linux on a MacBook Air (mid 2012). I'm trying to use rtcwake to implement a "delayed hibernation from suspend", as in https://askubuntu.com/a/33192 (the particular ...
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0answers
34 views

Run a script after login that prints to the terminal a welcome message?

I want a script that writes to the terminal a welcome message (something like echo "welcome, usr. Linux version..." etc). I have the script written, it works (i.e. it has execute privileges) so I know ...
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0answers
71 views

How do I set up network connection via 3G USB modem for Linux?

I've spent a lot of time searching for a solution, but now I'm here. I need to set up LG 3G USB modem for my Ubuntu 16.04. The system is able to see the device: $ lsusb Bus 001 Device 004: ID 1004:...
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0answers
78 views

How do I define an Ubuntu Linux16.04 systemd service for fastcgi-mono-server4 or xsp4?

How do I define an Ubuntu Linux16.04 systemd service for fastcgi-mono-server4 or xsp4? I have already defined an Ubuntu Linux16.04 systemd service for apache2 by copying obex.service to apache2....
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0answers
34 views

How to install mailman when it needs an older version of Python?

I am working on an install of mailman 3.0.3 on Ubuntu Server 16.04 which ships with Python 3.5.1 and 2.7.11. Per Barry Warsaw that version of mailman requires Python 3.4.n. https://gitlab.com/mailman/...
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0answers
44 views

fortran program crashes instantly with segmentation fault

I have a fortran program which I compiled myself and I ran the executable hundreds of times (without recompiling or anything), but now when I run it, it crashes instantly with segmentation fault. ...
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1answer
39 views

Custom greeting when I log in via ssh

I need to create a custom greeting message on my server when I log in via ssh. Or at least I want to add some information to it. I have none of these files: /etc/ssh/sshd_config, /etc/motd. So how can ...
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0answers
23 views

Relationship is between Apache2 and xsp2 (or mono-xsp2) for an Ubuntu Linux 16.04 system which serves mono ASP-NET content to an web browser user

I am interested in knowing what is the relationship is between Apache2 and xsp2 (or mono-xsp2) for an Ubuntu Linux 16.04 system which serves mono ASP-NET content to an web browser user requesting an ...
0
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1answer
53 views

How to lump together Apache2 Server and xsp2 server in the configuration for auto start when the PC reboots?

We need to lump together Apache2 Server and xsp2 server(or mod-mono-server server) in the configuration for the auto start sample shown below when the PC reboots. Quoting from the article, http://...
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2answers
47 views

Grub menu on reboot after removing another distro partition

I just acquired a macbook air. I dual-booted mac os with Ubuntu. It is my first time multiple-booting on a mac. I triple-booted with another Ubuntu. Ater removing the third distro, I experience some ...
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1answer
34 views

Couldn't connect to Larvel homestead database with MYSQL workbench

I am unable to connect to laravel homestead via mysql workbench here is how i connected but i am facing the below issue Plz Plz help me !!! Edit: Here are the details as requested by Gerath ...
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1answer
48 views

Is the openjdk-r ppa trustworthy enough to install on server?

We are running ubuntu 14.04, which still does not have openjdk8 yet. And I doubt they are going to fix this very soon. We need jdk8 very badly. Is this openjdk-r ppa safe enough?
2
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1answer
137 views

Bridged networking problem with Xen 4.6 and Ubuntu 16.04

I'm trying to setup a Xen virtualization on Ubuntu 16.04, and Xen 4.6. My plan is to have 1 private network, as well as virtual servers with public IP addresses which should be accessible externally (...
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1answer
84 views

Why I cannot purge mono-devel on Ubuntu Linux 16.04?

After I sudo apt-get install mono-devel , when I try to purge mono-devel on Ubuntu Linux 16.04, I get the following error message: Reading package lists... Done Building dependency tree ...
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15 views

Ubuntu Gnome stuck in startup(gnome logo) sometimes

I pick a(successful startup) and b(fail to start) dmesg file, hope someone can help me differ the file and find out why sometimes my ubuntu system fail to start(it frozen before login interface ...