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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ubuntu lts and cgroup support in iptables

I don't understand why Ubuntu community built iptables without cgroup support and what I don't understand if community didn't make it? Maybe Ubuntu use another some way (iptables without cgroup etc)? ...
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1answer
54 views

Why my terminal screen crashes?

Sometimes my system gets freezed, after that my icons looks crashed and the terminal fonts are also crashed Whenever I restart it looks normal, how to fix this?
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2answers
67 views

Why will a linux usb boot on my personal pc but not on school computers?

I'm enrolled in a linux class right now and one of our assignments was to make a bootable flash drive. My friend is also in this class but he didnt know how to do it so I just made one for him. It was ...
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42 views

can I boot ext4 usb stick with xubuntu on from a Mac laptop?

is there a way to boot my ext4 formatted "xubuntu" USB memory stick from a Mac laptop? The laptop can identify FAT32 usb memory sticks with ubuntu at boot time, but it cannot identify mine, which is ...
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183 views

Starting Wait for Plymouth Boot Screen to Quit

I'm struggling to install Kubuntu 15.04 on my PC. I've got a GTX 970 which i think is throwing off the trial mode from starting up. nomodeset doesn't work, so I tried nouveau.noaccel=1 to beget this ...
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1answer
17 views

How to use Mac Camera on Ubuntu Desktop

I am trying to feed my mac's camera into my ubuntu desktop. Any advice on either how to do this or the proper forum/resource to use to find out?
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45 views

Using Ubuntu as a SOCKS Proxy for Torrents - How to allow UDP for trackers?

This is my build: 14.04 LTS (GNU/Linux 2.6.32-042stab094.7 x86_64). I'm a complete noob at linux but have some experience in bind and ISC DCHP on some old solaris boxes (to define the audience!). I ...
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1answer
42 views

Ubuntu K/FreeBSD

I was wondering if it is possible to alter Debian K/FreeBSD so it becomes Ubuntu? I know there are builds of Debian 7 running on FreeBSD, so would it be possible to get a working Ubuntu system with ...
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2answers
54 views

Find command returning wrong data [duplicate]

I am using this command to list all files that have been modified in the last day (or created) find ./ -mtime 1 -ls However it keeps returning files from 30th April when I am running the command ...
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0answers
32 views

Backing up/restoring a full VPS, can't boot from live media

(My question here is specifically about Ubuntu, but I'm posting it on Unix & Linux because I think the answer will apply to Linux in general. I'm more than happy to reformat the question or move ...
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1answer
123 views

macbuntu - is it a linux distro or a desktop or a theme? [closed]

These might be very basic newbie questions (and if it is too basic, I would be happy to remove this post). After 25+ years of using various versions of Windows, to experiment with non-Windows OS, I ...
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0answers
51 views

Backing up VPS via SSH/SFTP

I'm going to perform some maintenance on my VPS (Ubuntu Server 15.04), and I would like to back up some files before doing so. The problem is that some of these files are under other users' home ...
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35 views

Permission of any file folder set to read only on upload

I have inherited an old CMS system that I have just cleansed from a massive hack attack. I copied all the files and databases, scrapped the old server, cleansed the files via various means, cleansed ...
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0answers
49 views

Debian setup launching GRUB bash

I have a little problem with setting up Debian. When I boot from the installation USB in UEFI mode, I get the GRUB command line. If I type in "boot", I get Please load the kernel first. I had Ubuntu ...
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2answers
242 views

init.d script not being run on boot

My script is not running on boot in a vagrant box under Ubuntu. My script looks like this - #!/bin/bash # /etc/init.d/mailcatcher ### BEGIN INIT INFO # Provides: scriptname # Required-Start: ...
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0answers
104 views

Ubuntu 14.04 using 100% swap space, with more than 40GB free memory, why?

I'm a bit at a loss trying to figure out why this would be the case. Can anyone provide some helpful ideas on troubleshooting this? $ free -m total used free shared ...
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123 views

Ubuntu: freezing on startup

I recently installed Ubuntu 14.04 on a new ThinkPad laptop as a dual boot with Windows 8. It has been running for a few days without issue. However, when I booted my computer today, it got stuck on ...
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3answers
40 views

Cursor freezes - keystrokes to release?

Occasionally the mouse cursor will freeze - I have to reboot. In Ubuntu is there a keystroke combination such as Ctrl+Alt+Del which would enable me to continue working without having to reboot?
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17 views

Apcupsd loosing connection with ups and couldn't be stopped

We've discovered that sometimes apcupsd loosing connection with ups. We can not find why, but we've discovered that when we trying to shutdown apcupsd with /sbin/apcupsd stop It gives following ...
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1answer
123 views

LXC external IP configuration for containers

I rent a dedicated server and want to use LXC instead of KVM. I want to buy IPs for every single container. For now i have two external IPs: 193.X.X.30/32 213.X.X.31/32 I prefer a routing solution ...
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1answer
108 views

Desktop files disappeared mysteriously. Entire directory missing

My desktop files on Ubuntu disappeared mysteriously when I tried to drag and drop files to my pen drive. I tried all options available on stack exchange and elsewhere on the internet, like ...
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3answers
119 views

How to use SSH to move a file from Ubuntu to Windows?

I am logged onto a windows machine. I am using Putty to login to an Ubuntu machine on the same network. Now I'm trying to move a .c file from the Ubuntu machine, to the Windows machine, edit it there, ...
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39 views

Isolating some CPU cores reduce average CPU usage of game servers

Hardware: FX8320 (8 cores) @ 4.4GHz, 16GB I run 10 TF2 game servers. Few days ago I isolated some CPU cores with line in linux grub config: isolcpus=5-7 The strange thing - individual CPU cores ...
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2answers
493 views

Problem running Ubuntu on crouton after updating chromeos

I've been running Ubuntu 14.04 using Crouton on a Toshiba Chromebook 2 for several months. Today I exited Crouton and restarted my chromebook. After restarting and issuing sudo startxfce4 in the shell ...
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1answer
39 views

pptp is refusing traffic

I have setup a pptp (VPN) server on CentOS 6.5. I can connect, but unfortunately, when I try to load a page, it hangs on 'Connecting...' I have no idea what could cause this... tail /var/log/messages ...
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4answers
712 views

Is it possible to tell if my Linux kernel is custom (i.e. compiled) as opposed to distro?

Taking example of Ubuntu, can we tell if the kernel was custom compiled rather than what comes with distro?
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65 views

Change default OS loading

Installed Ubuntu 12.04 Feb 2014 - upgraded to 14.04LTS. I believe there is still remnants of older OS's still there somewhere, (they appear on the Grub multi-boot menu at start up). An earlier ...
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25 views

Squid: no authentication when visiting HTTPS websites

I have setup Squid and everything is working. I am now trying to setup a password and all tutorials refer to a file called 'ncsa_auth'. Unfortunately, I do not seem to have this file. I checked in: ...
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0answers
156 views

Problem selecting update sources by GUI (*Software&Updates - Updates*) in Elementary OS Freya (*ubuntu 14.04)

[Although I trust this is ubuntu-specific, it is cross-posted here for the moment, as the initial askubuntu post was closed (for being eOS-specific)] I am in eOS Freya stable, clean install. I had ...
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1answer
57 views

Why is setting up WLAN in Debian so hard? (compared to Ubuntu) [closed]

switching from Ubuntu 14.04 to Debian jessie (LXDE) on a ThinkPad T500 Lan (eth0) is configured in /etc/network/interfaces and works fine. After setting up LXDE i wanted to switch to WLAN and it ...
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1answer
248 views

Installing Ubuntu 15.04 through Mint 17.1

I am currently using Mint 17.1 on a machine having both legacy BIOS and UEFI. Secure Boot is off. Mint is running on a fully encrypted physical partition and with swap partition is encrypted too. ...
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128 views

installing mongodb with linuxbrew

I want to install mongodb with brew in ubuntu 15.04 but despite several attempts to install i can't do that, even if I completely remove homebrew and reinstall it. when i type in terminal : brew ...
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2answers
85 views

Add ArchLinux to Ubuntu dual-boot

I would like to dual boot ArchLinux with my Ubuntu. I would like some hints at how to do it without messing my partitions too much. Presently, my Computer partition scheme goes like this: (Ubuntu ...
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0answers
80 views

connecting to virtualbox ubuntu from osx extremly slow

I am running ubuntu 10.04.x as guest on virtualbox from osx x 10.10.x host It works (kind of), but after working a while with it and also after power sleep it can get almost unusable slow. It looks ...
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2answers
134 views

Ubuntu won't connect to university internet [closed]

My WiFi adapter shows networks in the area, but will not allow me to connect to my university Internet. Normally, on Windows, I connect to the Wifi by clicking connect. It shows it as connected, but ...
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0answers
43 views

Passthrough PS/2 keyboard to guest OS

OS Windows run on VM (ubuntu, libvirt, qemu-kvm). And I have PS/2 keyboard on host hardware. Is there any way to pass it to guest OS without lost of performance (maybe emulate USB keyboard with keys ...
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46 views

Why can't I connect to 5ghz?

In "Edit Connections" I chose mode "Infrastructure". In router page (BT Home Hub), it shows that my android phone is connected to 5ghz, and my laptop still uses 2.4ghz. What can I do?
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0answers
59 views

Running Elementary OS on MacBookPro10,1, get random resolution changes

I recently installed Elementary OS (Ubuntu-based) and every now and then my resolution drops down to a super small size that messes with my mouse-tracking and pretty much makes any application ...
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1answer
80 views

airmon-ng disabling my internet connection

I am not really familiar with aircrack but I am having this small problem , when i user airmon-ng start wlan0 it puts my adapter into monitor mode but i loose internet connection and the adapter looks ...
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0answers
24 views

after reboot server, service start without special chars

I write simple Java server. This service (java server) connect with mySQL database. I am connecting with this service by socket connection. Everything work well when i start my service by line ...
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1answer
166 views

Can't use apt because python encoding issue

I'm getting a python unicode error every time I try to install or update anything with apt or aptitude, preventing me to update my system. The error I'm getting is the following: File ...
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1answer
129 views

Why does GDM start in TTY2 and TTY7

I have Ubuntu 15.04 and GNOME 3.16 installed. This PPAs are enabled: deb http://ppa.launchpad.net/gnome3-team/gnome3-staging/ubuntu vivid main deb http://ppa.launchpad.net/gnome3-team/gnome3/ubuntu ...
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0answers
27 views

Record video from camera and get frame number on demand

I'm using avconv at the moment to store the input of my camera as an video. This works fine. Now i'm asking myself if it is possible to get the current frame number at a particular time of the video ...
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1answer
26 views

Why does checkinstall need sudo?

On Ubuntu, IIRC, checkinstall only create a deb package from compiled binary files, and doesn't install them to some destination directories (say, some system directories). But I always have to run ...
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0answers
38 views

Postfix problem with sending and receiving emails

I have had problems for one week with the email server Postfix. This came after running the antivirus ClamAV with the remove option on. When reading the mail log I keep getting the error message ...
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0answers
43 views

gnome power manager

Last night I was trying to sort out a problem with evolution to enable me to delete emails as the disk is getting rather full. I had deleted some files in the evolution folder ( .cmet and .index). I ...
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1answer
68 views

how to force a tun/tap interface into RUNNING state

I create a tun interface, bring it up and assign an ip addr to it using sudo openvpn --mktun --dev tun2 sudo ip link set dev tun2 up sudo ip addr add 10.0.0.1/24 dev tun2 The interface is created ...
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2answers
79 views

Toolbar icons unable to load when running Emacs through xhost from FreeBSD to Ubuntu

I'm connected to a FreeBSD Computer using ssh [ip] -X, and emacs launches just fine, but this happens and all the icons are little pieces of paper with red X's: > emacs (emacs:22812): ...
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44 views

Error installing grub on bootable USB drive

I want to deliver a Linux tool as a bootable USB stick and so I am trying to create a USB stick with the Ubuntu core. I am following the steps at What commands are needed to install Ubuntu Core? But ...
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2answers
131 views

Are driver modules loaded and unloaded automatically?

On Ubuntu 14.04, I found that when I don't plug in my external wireless adapter, its module rt2800usb is still shown in lsmod. when does automatically loading a driver module happen? Is it when ...