Ubuntu is a free open source operating system based on the Debian GNU/Linux distribution. Consider using http://askubuntu.com/ to ask questions about it.

learn more… | top users | synonyms

0
votes
0answers
18 views

Proftpd File Permissions Issue

I'm using proftpd on a Ubuntu server and the FTP is working on a directory with 777 permissions. Files are uploaded as ftpuser:ftpgroup which is correct. However, on a directory owned by someone else ...
0
votes
1answer
39 views

Script Shell Find a String in a file

Here is the structure of my file: /**** Some Text here ****/ UN 10.147.243.93 51.46 KB 256 34.2% UN 10.147.243.89 83.05 KB 256 34.6% DN 10.147.243.88 66.43 ...
0
votes
1answer
27 views

Installing luabind on Ubuntu

So I've been looking on the internet for a moment and found nearly no tutorial, or good instructions on how to install luabind. I found that I need to have boost and lua 5.xx installed to install it; ...
1
vote
0answers
20 views

qemu apt-get error failed to fetch

I am running a qemu terminal and trying to scp files into it. In qemu, I am running a linaro release. I have configured /etc/network/interfaces with auto eth0 iface eth0 inet dhcp I have also ...
0
votes
1answer
19 views

ubuntu phone - How to transfer photos from phone to ubuntu computer

I want to transfer my photos from my ubuntu phone to my ubuntu (actually Mint) computer.) I have tried via bluetooth without success. Can you even do that?
0
votes
0answers
14 views

Ubuntu: have different passwords for user and for encryption

On the install routine of most linux distros, if you elect to encrypt your files you are asked for seperate Passwords for a. the user's account and b. the encryption on the files. Ubuntu doesn't seem ...
1
vote
1answer
30 views

“WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!” constantly occurring, even *after* deleting known_hosts

As per title, lately I started getting the error "WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!" after I set up a new server in AWS. I'm on OSX Yosemite (10.10.3) I'm aware of nearly all the ...
0
votes
0answers
11 views

Can squid be used in reverse or any other package be used in reverse

I'm attempting to host a minecraft game server. The primary obstacle is that the network I'm using only has 1 mbps upload. I have a vps available that has 1Gbps both ways. I would like to have the ...
1
vote
0answers
31 views

After installing updates and rebooting server SSH keys modified to use hostname instead of IP

After a recent update on my Ubuntu 14.04 AWS EC2 server my remote machines could no longer ssh in. Checking the syslog on the EC2 I found: Jun 26 02:27:06 ec2: ...
0
votes
0answers
11 views

Tracking changes of a file

Please, i'd like to know if there is a solution (command linux for example) to track changes in a file. UN: up ; DN: down Here is my file before changes: UN 10.147.243.93 51.46 KB 256 34.2% ...
0
votes
1answer
27 views

Bash - enable execution only if script is run from a specific directory

I need to write a shell script that can only be executed if it is run from the home directory of the currently signed-in user, and I have no idea how to check that from the script itself. Any help ...
0
votes
0answers
11 views

Tshark interface to sniff on

I have a MQTT broker and a MQTT client both running on the same machine. The client sends publish packets to the broker. The broker processes it and sends it back to the same client as publish packet. ...
1
vote
1answer
61 views

Resizing a partition in Linux - Bad magic number in super-block error

I was trying to resize my partition with parted and resize2fs. I tried the following: #parted Partition Table: msdos Number Start End Size Type File system Flags 1 2097kB ...
0
votes
1answer
28 views

Result of | grep in a variable

Here is my script: var= $( $line | grep -Po '.*(?=.fr)' ) echo $var I have an error and it displays nothing: command not found Have you idea please ? Thank you so much for help. Best ...
1
vote
2answers
41 views

access external hard drive from a different network [closed]

i have an external hard drive that I have connected to an extra computer on my home network. For school and work, I spend a lot of time at another location. I'd like to access the files on my hard ...
0
votes
3answers
50 views

Script Shell Extract substring

Please, i'd like to extract string just before '.fr'. Here is some lines of my file: g-82.text.text1.fr.worker1 g-xx.yyyyyy.zzzz.fr.worker2 i'd like to extract this text: g-82.text.text1 ...
0
votes
1answer
37 views

Unable to See Files on Drive On Windows 7

Drive is 1T external USB SSD formatted to NTFS (by Ubuntu). (Dual boot Windows 7 and Ubuntu 15.04) Works great on Linux. But in Windows 7 it shows up as empty. No errors. dir /a shows just two files, ...
0
votes
0answers
19 views

Grant full access to the contents of a directory to a user

I have a directory that has directories created in it, and files created in those directories. There are several layers of directories that are generated. The files and directories are created ...
0
votes
0answers
31 views

How to tell system wich USB-soundcard I want to have hw:2, if the two are “snd_usb_audio”?

I have a USB-soundcard (Encore ENMAB-8CM) and a Webcam with mic (Logitec c170). I want to use Jack with the USB-soundcard and, using alsa_in and jack_connect via scripts, to connect Webcam mic to ...
1
vote
0answers
128 views

Ubuntu 15.04 + AMD,purple screen when booting after install,stuck at initramdisk

I installed Ubuntu 15.04 on a Seagate expansion drive. I tried booting it up from my machine, but it hangs (and I waited over 30 mins, just to be sure). I tried using the drive from an Intel based ...
3
votes
3answers
43 views

LibreOffice Writer … the ohm sign (Omega)

I am using LibreOffice Writer on Ubuntu 14.04 to do a class assignment and I need to use the Ω (Ohm sign, big letter omega) to show resistance. Unfortunately I can't seem to find the sign anywhere. ...
0
votes
1answer
66 views

devices inside /dev - are their naming persistent by default?

Can i check if devices like sda , sdb naming in /dev/ are persistent by default or there are some udev rules in place to create persistent naming for them ? Does udev itself create device naming ...
2
votes
1answer
64 views

udev symbolic links - where is /dev/sda pointing to

It is said that udev create symbolic links identifying the actual device and /dev/disk/by-uuid is an example. [root@centos1 by-uuid]# pwd /dev/disk/by-uuid [root@centos1 by-uuid]# ls ...
0
votes
0answers
8 views

Performance issues after migrating to a new server with better hardware config

I need help optimizing a server. We are currently using a pc with below configuration as a server (current) for Sugarcrm. Processor: RAM: 16GB Hard disk: SATA 500GB 7200 rpm OS: Ubuntu 12.04 LTS ...
0
votes
1answer
20 views

Cannot insert caret and backtick in XTerm

I cannot insert carets and backticks (and possibly other characters) in XTerm under certain conditions. When I move focus from XTerm to Firefox and use Alt+Tab to switch back, I can no longer instert ...
0
votes
0answers
17 views

Ubuntu vivid like win8

I have installed ubuntu vivid to my friend's laptop as secondary OS but my friend didn't like the unity Desktop's ui so I want to install windows 8 theme also want to move laucher to bottom side of ...
0
votes
2answers
19 views

Linux - How to run programs on external media?

I have an Ubuntu 14.04 LiveCD and the full Ubuntu 14.04 install on a bootable USB hard drive. I have g++ installed on the hard drive, but I need to use the hard drive for sneakernet. Is there a way to ...
5
votes
1answer
4k views

Failed to fetch Spotify repository while updating ubuntu

Given I have spotify installed on my ubuntu system When i upgrade using: sudo apt-get update Then I get this error: W: An error occurred during the signature verification. The repository is not ...
0
votes
2answers
29 views

udev - am i using it, where do i see it?

It is mentioned that udev present devices in /dev for devices that are presented to the kernel and it is use to create persistent naming. I have having 2 harddisk /dev/sda /dev/sdb. How does ...
1
vote
2answers
31 views

cannot set uid with mount

mount -o uid=1000 /dev/sdb1 /mnt mount: wrong fs type, bad option, bad superblock on /dev/sdb1, missing codepage or helper program, or other error In some cases useful info is found in syslog - ...
0
votes
0answers
18 views

Tascam US-800 Audio Interface no longer showing up on Ubuntu Studio

I bought a Tascam US-800 USB audio interface about three years ago. At the time I had a MacBook Pro (I think it was a 1,1 from 2006, and I know it was 32-bit) and Ubuntu Studio 13.04 (though possibly ...
0
votes
0answers
34 views

Postfix Outgoing mail not working from external locations

I'm currently trying to get Postfix and Dovecot to work on my Ubuntu server, and it partly works. I got it working on Roundcube. I was able to send mails to and receive from external servers like ...
0
votes
2answers
31 views

How do I set the time on my Ubuntu

I run my ubuntu on a virtual machine and the time does not update. How can I set up my machine so that everytime I turn it on the time will be correct? Ubuntu 12.04 running on a VMware VM with a W7 ...
1
vote
1answer
22 views

Port is reachable on telnet locally, but browser shows connection reset

I am running a web application server locally in an Ubuntu guest VM on a Windows host. I could not connect to the service in any web browser. Chrome reported ERR_CONNECTION_CLOSED. The result is the ...
0
votes
2answers
24 views

Unable to install PosgreSQL on Ubuntu 14.04

I have been trying to install PostgreSQL on my Ubuntu machine. I end up getting this error. postgresql : Depends: postgresql-9.3 but it is not going to be installed postgresql-contrib : Depends: ...
0
votes
0answers
10 views

Making multiple DHCP IP permanent in Ubuntu 12.04.5

I followed the instructions here Getting 2 IP addresses on one network card, using DHCP and this worked for me but how do I make it permanent in Ubuntu 12.04? Should I put it in some sort of cron job ...
0
votes
0answers
32 views

'Unusable' state of the computer, and no OS

My Lenovo Ideapad came with a Windows 8, later upgraded to Windows 8.1. Recently, I tried to load Kali Linux on it, and halfway through the process, discovered that I may have installed it in the ...
0
votes
1answer
15 views

How to start application from a different location in ubuntu

ok, so I have multiple versions of a game running(minecraft). I use one version of minecraft for my younger brother, and one for myself. In windows, there's my minecraft.bat file: set ...
0
votes
0answers
9 views

Ubuntu RAID1 with HP server

I have a server HP ProLiant ML310e Gen8V2 with 2 disks, and I want to install ubuntu 12.04 with RAID1. However, I have read some posts that say "This model of HP didn't support RAID1 with Ubuntu or ...
1
vote
0answers
19 views

How to create owncloud on https on same ip address on http

I have a problem to manage two virtual host on apache2 Ubuntu. The following is the structur on my /var/www Owncloud Portal My stroyboard is like this : I want to create a web portal that have a ...
0
votes
0answers
24 views

How to integrate NPlot in MonoDevelop

NPlot is a charting library which could be used in GTK#. I've downloaded its tarball here. The README file contains this: The first version of NPlot-Gtk was made by Miguel de Icaza, and was a ...
0
votes
2answers
34 views

2 Separate Machines, 2 Static IP Address. No connection Outside ISP Network

I have two separate physical machines. The first one is running CentOS 6.6 x86_64, and the second is running Ubuntu 14.04 LTS. (also 64-bit) Here's the issue. Both servers have a direct connection to ...
0
votes
0answers
11 views

Nautilus corrupts if directory has .jp2 extension

I am using Ubuntu 15.04 and my portable hdd has errors so I tried to recover data via Photorec which is testdisk's tool. I have a LOTS of recup.dir* so I have to look for my important data but ...
0
votes
0answers
73 views

Use Wayland on Ubuntu 15.04

Trying to use Wayland on Ubuntu 15.04, I followed the instructions I can find on google. I can see the gdm login screen and choose GNOME on Wayland shown as below. But after I type in my password it ...
0
votes
1answer
51 views

Windows cannot be installed on the disk. The selected disk is of the GPT partition style.

I have Xubuntu 14.04 installed on my computer and I have 3 partitions in it. /boot, /sda1 (main, 900gb), and /swap (for swap space). I've been trying to install Windows 7 Ultimate 64-bit by following ...
0
votes
1answer
32 views

Cannot boot ISO on only one machine

I have a version of Ubuntu 14 on DVD and USB to boot from. This ISO boots from other machines via both DVD and USB, but it will not boot on the particular Dell I need it to. Initialization crashes ...
0
votes
1answer
6 views

Using a apt repository to install packages but not auto-update them

I had some problems with Linux, probably caused by a bug in the kernel or some drivers. Old distriutions such as Ubuntu 12.10 work, and that's what I use. However this release is old and isn't ...
0
votes
0answers
36 views

Unable to setup OpenSSH server on Ubuntu

I have been spending the last 4 hours trying to get my VNC connection to work. Eventually, I realized it was because my Ubuntu remote host was unable to host SSH connections- even though I had already ...
1
vote
2answers
64 views

Virtualbox shared folder mounting not working

I have been trying to mount a virtualbox folder for some time now and keep getting mount: unknown filesystem type 'vboxsf' I have installed and reinstalled guest additions a number of times both ...
0
votes
0answers
9 views

Service overloaded while loading forum page

I have problem with one site on my machine where I have installed ispconfig. Sites with low PHP count works fine, but site like forum(MyBB V3) mainpage.com/forum/ <- this link return error below. ...