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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JAR file terminates unexpectedly without error

I have a JAR file that I'm running in a screen session using java -jar <myjarfile> and for some reason it stops running at unexpected times. I'm redirecting both the StdErr and StdOut to ...
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2answers
67 views

7-Zip slows down over time on Ubuntu but not Windows

I have a directory called Pages of 2.2 million HTML files (about 80 GB) on an Ubuntu server. I compressed it with 7-Zip using this command: 7z a -mx=9 Pages.7z Pages It took around 5-6 hours to ...
1
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1answer
74 views

How do I resize the active partition (in Ubuntu 15.04)?

When I first created this virtual server with VMWare it was 16G, but that has proven to be insufficient space. So I recently resized it with GParted to 32G using the Live CD. Judging by the results ...
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1answer
44 views

What commands can I use to debug or profile a slow DNS / internet connection?

I'm at an enterprise where there's generally a very fast internet connection, but every time I visit a web page, it takes a really long time. I tried profiling this in the browser, and the only thing ...
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1answer
46 views

difference between ubuntu and linux mint is only desktop?

I want to choose a distro to start. It'll probably be debian family. So I'm checking ubuntu and linux mint. People say the difference between ubuntu and linux mint is basically the default setup and ...
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0answers
7 views

upstart + telinit: is it really works?

I think about how to backup my ubuntu server, and I want try one possible solution using init levels. So I downloaded Ubuntu 14.04.2 LTS, install it on VirtualBox, and try: telinit 1 It warn about ...
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0answers
19 views

Bash script to connect to Teletalk internet

I'm running Elementary OS(based on Ubuntu 12.04), and I have to connect to the internet in a peculiar style. I use a Teletalk modem to connect to the internet. Unfortunately, the modem gets recognized ...
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1answer
33 views

How fork() is executed in logical operator? How many times “Hi” is printed ? How? [closed]

#include <stdio.h> #include <unistd.h> int main() { (fork() && fork()) || (fork() && fork()); printf("Hi...\n"); return 0; }
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0answers
13 views

HDMI non responsive after boot

I have a QNAP NAS-269G with Ubuntu 12.11 Server installed on it. When I plug a monitor to it via HDMI it shows the entire boot process. Then when the log in prompt should normally show the screen goes ...
3
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1answer
58 views

Can't format HDDs and install linux to Dell hybrid ultrabook

I've tried installing OpenSUSE 13.2, Debian 8/8.1 and Ubuntu 15.04 (all them amd64). Debian/Ubuntu won't show disks and OpenSUSE can't format the partitions created on them. During the install, ...
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2answers
36 views

I can't connect to new router with same ssid that the older router

I have a problem with my wifi in Ubuntu (15.04). Recently, i have changed my wifi routers. Due to differents devices that was already configured, I have configured the new router with the same SSID ...
0
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1answer
39 views

Forward all traffic from Android to Ubuntu server running privoxy (iptables)

My university has installed a non-transparent restrictive proxy which allows only traffic through 80 and 443 ports. Currently, I have my android phone (Nexus running CM12.1) pointing to my Ubuntu ...
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2answers
36 views

Installing perl modules

I was trying to install a perl module Future::Utils on my Ubuntu machine but didn't find the exact command. I tried this command but it didn't work: sudo apt-get install libfuture-utils-perl I have ...
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1answer
27 views

Has anyone gotten deboostrap for jessie working from an Ubuntu host?

I am running Ubuntu 12.04, and trying to build an armhf Debian image for Jessie. I've done this before for Wheezy. The debootstap script doesn't seem to work if the target is Jessie however. Any ...
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0answers
60 views

Unmet dependencies when installing mtrack

I'm trying to install mtrack on Ubuntu 14.04 on my macbook pro: sudo apt-get install xserver-xorg-input-mtrack But I get unmet dependencies: The following packages have unmet dependencies. ...
0
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1answer
36 views

How to resolve 'No protocol specified' for su user

I am trying to user an alternate user (non-admin) to execute graphical software on my system. This alternate user has been named and given a UID and GID to match a remote system user of the same name. ...
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0answers
27 views

Wifi keep on disconnecting on Ubuntu

I am using ubuntu. wifi works great on my laptop. I am facing problem with one particular wifi router (I think Airtel Binatone) installed in my company premises, Here are some logs 1) sudo iwlist ...
1
vote
1answer
19 views

zpool import can't import an online pool

I rebooted my Ubuntu 15.04 server and found that my ZFS pool did not import. I'm puzzled as to why this is happening. Here is the output. root@ubuntuserver:/# zpool import pool: store1 id: ...
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0answers
29 views

Error “Can't assign requested address” when ssh-ing to remote server

On ubuntu 14.04 I have installed openssh, changed the ssh port. I can login within LAN with no problems, but I cannot access it from outside. I also have: allowed it though firewall and set up port ...
0
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1answer
80 views

nginx logrotate error on cron job

I'm running Ubuntu 14.04 LTS and nginx on a Digital Ocean VPS and occasionally receive these emails about a failed cron job: Subject Cron test -x /usr/sbin/anacron || ( cd / && run-parts ...
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0answers
16 views

Microphone not working

My microphone is not working. I'm using front panel for it. Headphones are working fine. I tried several things and none worked. I'm using Ubuntu 14.04 LTS.
1
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1answer
25 views

install date time picker on ubuntu server [closed]

I've recently created a kiosk which uses openbox and xorg in order to be able to show the browser. Is there also a way that I can run some command in the server and it will open a graphical date and ...
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0answers
17 views

Can I create universal recovery usb by separating partition?

I installed super grub2 disk and partitioned my usb as Model: SanDisk Cruzer Blade (scsi) Disk /dev/sdc: 16.0GB Sector size (logical/physical): 512B/512B Partition Table: gpt Number Start End ...
1
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1answer
31 views

Open source OS/File Backup solution [closed]

There are quite professional "OS/File" Backup solution from many vendors like Symantec BackupExec/Veeam. But those solutions aren't free & requires license. I am planning to build a open source ...
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0answers
18 views

Ubuntu 14 loading problem

I am using Ubuntu alongside windows 7. Ubuntu was running normally but don't know when I power on my laptop it has shown grub system to choose one of the OS from 2, I chose ubuntu, then the screen ...
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0answers
6 views

adding keyboard to ubuntu server kiosk

I've set Ubuntu server to be a Kiosk. Now I need to add Hebrew keyboard as-well for the browser. I've run the command: sudo dpkg-reconfigure keyboard-configuration And chose Hebrew and set ...
1
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1answer
28 views

running command before shtudown doesn't seem to work

I've created an ubuntu server kiosk based on some guide that I've found and I'm trying to stop the kiosk before the shutdown. The kiosk is being started automatically or manually with the command sudo ...
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0answers
12 views

unmet dependencies for gir1.2-accountsservice-1.0 on Ubuntu 14.04.2

I'm trying to install a software package which depends on gir1.2-accountsservice-1.0. However, when I attempt to install gir1.2-accountsservice-1.0 I get the following message: sudo apt-get install ...
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0answers
13 views

Will changes to libc.conf affect the rest of my environment?

I had to comment /usr/local/lib under /etc/ld.so.conf.d to get a software called qgis up and running. If I uncomment it qgis fails. Will commenting out /usr/local/lib have an effect on my other ...
4
votes
3answers
76 views

How to restrict a user to one folder and not allow them to move out his folder

I have ubuntu server on digitalocean and I want to give someone a folder for their domain on my server, my problem is, I don't want that user to see my folders or files or to be able to move out their ...
0
votes
1answer
40 views

Relaunch an app if it freezes

Yesterday I successfully managed to make a kiosk from Ubuntu Server. I'm going to use it to rub some web application that will run non-stop. However, in some cases, duo to lot of js animation I'm ...
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0answers
17 views

TelosB mote and TinyOS

I am trying to Blink LED on TelosB mote. I have installed TinyOS but I am having an issue with the make command. Could anybody be able to help?
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0answers
27 views

Create mail boxes with Rainloop and Ubuntu 14.04 Dovecot

I have installed rainloop and it seems to be working fine and also configured dovecot on Ubuntu 14.04 as per the Ubuntu online tutorial but I'm stumped now, how do I create email address for my ...
0
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1answer
24 views

DHCP server does not appear on nmap, no errors

I have tried to get into Ubuntu thing recently (newest edition), but I've got a problem with DHCP server. I configured the files /etc/network/interfaces and /etc/dhcp/dhcpd.conf according to my ...
1
vote
1answer
26 views

Cabal using older version when newer is installed

I've just installed and updated cabal, but it is still using the original version (1.16.0.2) instead of the updated 1.22.4.0. The commands I have run, after installation through apt-get: $ cabal ...
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0answers
71 views

Ubuntu 15.04 wired connection keeps dropping and restarting

I've finally switched to Linux (Ubuntu 15.04) 2 weeks ago and everything went well. But unfortunately after turning on my PC today and doing the usual (sudo apt-get update, sudo apt-get dist-upgrade) ...
2
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1answer
29 views

data recovery after partial shred

well i issued the following command: shred -v /dev/sdb. However I wanted to shred /dev/sda. I realized my mistake after about 2gb had been shredded (out of 2.7tb raid volume). what is the ...
1
vote
1answer
63 views

Permission denied writing to mysql log

I am just testing out a new Ubuntu (Vivid 15.04) install on Vagrant, and getting problems with mysql and logging to a custom location. In /var/log/syslog I get /usr/bin/mysqld_safe: cannot create ...
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0answers
45 views

CPU Scheduling incredibly slow with large difference between total execution time and actual CPU time - Ubuntu Full-Disk Encryption enabled

Admittedly, I am running on a build that is no younger than five years old at this point and the system is not going to be incredibly fast. However, at the same time, the run-times I am observing are ...
1
vote
1answer
82 views

Least resource-consuming Linux OS to run just Chrome

I've developed some application which uses a browser in order to run. The usage of the browser is simply for the GUI which is built with html/css/js (there are lot of js animations). Currently, the ...
2
votes
1answer
70 views

Connect to server to remotely access a Linux computer via GUI

I'm working from home on my laptop which runs on Ubuntu and I would like to access my work computer which runs on Mageia. Usually I just gain access through terminal like this: ssh -p <port> -X ...
2
votes
2answers
60 views

How do I transfer installed packages and settings from one distro to another?

I've been exploring learning and about the Linux system via VirtualBox for a few month's and decided that I want to make it my main OS and install it on my hard-drive. I have a number of files, ...
0
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1answer
37 views

How to configure partitions for installing Ubuntu in parallel to Windows?

My hard drive has 3 partitions (+1 with the windows bootloader). Windows is installed on C, some personal data is on D and my E partition is completely empty and (ntfs) formatted. I want to install ...
1
vote
1answer
22 views

Samba does not show symlinks

I am using samba under ubuntu 14.04 and I try to share a folder which includes a symlink to a directory that lies on an external drive. If I access the samba share from other devices (like android ...
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0answers
20 views

How to configure Ubuntu 12.04 VM to use physical serial port on host

I am trying to configure a Ubuntu 12.04 VM to use a physical serial port on the host. When configuring the serial port in vSphere, I am presented with two options – uart0 and uart1. From what I can ...
2
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1answer
57 views

status, killproc commands in Ubuntu

I am trying to migrate an init.d script from centos 6.6 server to ubuntu 14.04. Centos machine start, status, stop commands are, daemon --pidfile=/path/to/pidfile /path/to/daemon/script status -p ...
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0answers
20 views

Metasploit target reverse connection

well, I found many tutorials on how to open a meterpreter session on devices. But this devices must be on the same network of the computer from I launch the attack (because the lhost often looks like ...
2
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1answer
50 views

Detect remote sshfs mounts on local machine

I would like to get back the question of this post. When a user in a remote client mounts a directory from a local server on his filesystem through sshfs, he is not visible in the server through who ...
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0answers
12 views

Issue in updating ubuntu Client with spacewalk server v2.3

I am facing issue while updating ubuntu client from spacewalk UI. Update Status code completed with '0' but still packages not installed on the OS. when checking the log there is also no error. Env ...
2
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1answer
53 views

What happens step by step when using “rm -rf directory”? [duplicate]

Let's assume that I have 150 GB of data in a directory and I have accidentally run this command for a directory. Suddenly I realised, I should not put "/" in the beginning of directory and I ...