Linux refers to the family of Unix-like computer operating systems using the Linux kernel. If your question is about a certain distribution only, use a more specific tag.

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Samba, winbind and AD authentication: username is invalid on this system

I am trying to set up a file server with Active Directory authentication using Samba and Winbind. Domain controller is Windows 2000 SP4 (don't judge). File server is Debian 7.7 (latest stable). This ...
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Nodejs remote debugging ports closed

I have a problem with nodejs remote debugging. I'm using centos on remote server and phpstorm on my PC. When I open putty: I type in command: node --debug-brk=5858 main_server.js, and the output is: ...
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1answer
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Firefox cannot download certain files when set to ask where to save files

This does not happen with all files, just with some downloads that seem to have nothing special, like from launchpad or deviantart. The same files are downloaded if the setting is changed to download ...
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Installing Kali Linux 1.0.9 alongside windows 8.1(Read all the previous threads on superuser still confused how) [on hold]

So i want to install kali linux alongside windows 8.1(installed in legacy mode) but i got confused reading many other threads,so i want someone to link me to some tutorial or guide me through ...
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1answer
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ubuntu use proxy for whole network traffic

How to set ubuntu to use a proxy (socks 5) for whole applications traffic? I tried proxychains, but it only works for one app, not whole system. Something like Proxifier on Windows.
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Online Drive Replacement: BTRFS with RAID 6

on a testing machine I installed four HDDs and they are configured as RAID6. For a test I removed one of the drives (/dev/sdk) while the volume was mounted and data was written to it. This worked ...
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1answer
9 views

Restore old mc exit directory behavior

I would like to have the OLD behavior of mc, when exiting meant that I will be at the directory where I was before I started mc. I'm only a user on the system, I suspect it's a Suse Linux. The which ...
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3answers
40 views

What's the security used in my school network

In my school we have to use the school computers to our homework. I like to work on my machine because I have all well configured (Vim, Firefox and I use Ubuntu instead of Windows ...etc). I use my ...
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How to properly change SSH ports in Microsoft Azure?

I have a virtual machine on Azure—for testing, not a production server—based on Ubuntu 14.04 LTS. The default SSH port 22 is opened by default. I want to change it to 12131. I edited my SSH ...
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6 views

btrfs device total usage differs from the sum of each usage

My system lays on a btrfs with 3 disks. btrfs fi show outputs: Label: none uuid: 75a8f1e7-7d79-4a05-8f88-fe02d119bf9f Total devices 3 FS bytes used 14.84GiB devid 1 size 7.74GiB used ...
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1answer
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Strange bash error: “error importing function definition for `BASH_FUNC_module'”

Sample script: #!/usr/bin/env bash echo "abc" Output from Bash version 4.1.2(1)-release: $ ./a.bash bash: BASH_FUNC_module(): line 0: syntax error near unexpected token `)' bash: ...
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Looking for road traffic system [on hold]

I am looking for a software similar to an IRIS Traffic Management system. My company is collecting road traffic information from 3rd party. But we are not sure on how to process the road traffic ...
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1answer
15 views

How to set Vim inside Tmux as default system editor? (Linux)

At all times I have Tmux running, with Vim inside it. I want text files to be by default opened in that Vim instance, and not a new one. I presume I need to somehow change the default text editor as ...
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18 views

Close terminal if exit code is not 0 for command after login

For security, I'm trying to set up double authentication for a CentOS server. The way it works is you log into a user with SSH keys then once you log in it executes su to change to the root user, ...
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20 views

File names with illegal characters on NTFS drive

I have an external drive which is using NTFS. I think what has happened is the file was saved under Linux so has the illegal (to Windows) character ":" in the filename. This file can't be read by ...
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1answer
17 views

Live Disk with Persistance: Missing Operating System

I will try to narrow down my questions because I realize this topic is super broad. I'm trying to create a Linux bootable USB disk with persistence for the most recent version of Lubuntu (14.10). ...
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7 views

How to change mode of an airmon-ng created interface(mon0) from managed to monitor?

I am connecting to a home router using wifi. The detais of my wireless cards are as follows: #lspci 01:00.0 Network controller: Qualcomm Atheros AR9485 Wireless Network Adapter (rev 01) #lspci -vv ...
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1answer
15 views

Create directory in vifm

I use vifm as my file manager occasionally and was wondering how to create a new directory?! Both vifm -h and man vifm are pretty short and don't really help.. EDIT: Just noticed that in the MINT ...
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4 views

Add a top panel button in gnome shell to turn off monitor

I would like to add in the top panel of gnome-shell a button to execute sudo sh -c 'vbetool dpms off; read ans; vbetool dpms on' in order to turn off the monitor. I have no idea on how to do it.
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17 views

Find Windows 7 driver for Realtek RTL8111/8168/8411 PCI Express

We have a desktop computer here which has Ubuntu installed. We want to install Windows 7 on an identical computer, but now have no network connection. Windows doesn't recognize the network card. On ...
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8 views

How to unpack rar archive with p7zip under Centos 7

I'd like to make my 7z command to be able to extract RAR archives. I have installed p7zip and p7zip-plugins packages from EPEL repository. However, if I try to extract a rar file like this: 7z x ...
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Install win 7 along with a previous linux installation

Trying to install windows 7 on the last partition of my hdd (WD 500 gb lpvx advance format drive). The disk already has 6 previous partitions which have Debian Lenny, Wheezy, and Ubuntu studio 12 ...
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1answer
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Mounting /dev/sda on / and /dev/sdc on /usr

I want to know why you can do that kind of things? Why can you mount /dev/sda on / and /dev/sdc on /usr? Why don’t directory contents collide between /usr of /dev/sda and /usr of /dev/sdc? It ...
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How can I write a simple script for the Ubuntu terminal which turns off the screen for X seconds every Y minute?

I am quite tired of getting a headache when working with the screen for too long periods of time. That's why I want to test the following... How can I write a simple script for the Ubuntu terminal ...
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7 views

Can not view Ubuntu desktop on VNC viewer

I’m having problems on trying to connect to Ubuntu 14.04 via VNC from Windows. I’m able to establish the connection but VNC isn’t showing desktop icons. Futhermore, if I move the mouse on the VNC ...
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15 views

Bash script monitor file modification after its closed

It has already been asked here and I have found the solution for the first part of my question. So for the moment I have a bash script (script1) where I evaluate the sha1sum of a specific file ...
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14 views

midnight commander subshell - sharing a history file with the shell mc was started from

I am looking for a way to make midnight commander share its subshell history with the parent shell. To be more specific, when I start mc, open its subshell using Control+o and subsequently invoke a ...
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5 views

Pulseaudio: how to rescan audio devices?

When adding a USB device to my system (I deliberately run no modern stack for device detection), Pulseaudio can't pickup it without restart (pulseaudio -k; pulseaudio --start). Is there an option ...
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1answer
11 views

Ubuntu Server 14.04 LTS - GRUB fails to install on a VM

I'm trying to install and run Ubuntu Server 14.04.1 LTS on a VirtualBox for testing purposes. However, I can't even pass the installation process without errors, and it will fail to install the GRUB ...
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0answers
17 views

explain the top command in andriod [on hold]

When I use the top command to get CPU information in Android, I get strange data in the following lines: User 0%, System 100%, IOW 0%, IRQ 0% User 0 + Nice 0 + Sys 6 + Idle 0 + IOW 0 + IRQ 0 + SIRQ 0 ...
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Renaming burned CDs

I'm stuck with a problem that would require a skill set a little farther than mine, I currently installed Ubuntu for the first time on a piece of hardware, but I didn't take in account that the ...
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1answer
23 views

Can CygWin 64 bits compile 32 bits sources?

I am trying to compile on CygWin 64 bits the (presumed) 32 bits wake on lan tool here created by Thomas Krennwallner, supposed to compile on Unix and Windows under CygWin. After download I did: ...
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1answer
22 views

Send emails over port 80 using Linux command line

I have a server that is not allowed to send outgoing emails or have access to any name servers. What it has is an http proxy that allows it to access the other servers and I am able to do wget ...
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13 views

XEN HVM: GUI rendering artifacts on VNC

I'm facing a strange issue running Xubuntu (tried Ubuntu also, same problem with Unity, but no problem with Metacity) on Xen HVM while connecting to it via XEN's builtin VNC. Some parts of the user ...
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Pacmd dynamic range compression Ubuntu 14.04

I used the answer at the link below to successfully set Dynamic Range Compression on my Ubuntu media box running Ubuntu 14.04 (SteamOS session, so no Ubuntu desktop session available). Realtime sound ...
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1answer
24 views

Complex alias command

I am trying to create a complex alias. I have a lot of servers I have to ssh to and writing the entire command is quite annoying some times. I created aliases for every machine: alias ...
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8 views

What are my options to clear vertical screen space on centOS?

I'm migrating from ubuntu to centOS and one thing I have noticed is how the default GUI of ubuntu clears vertical space. It does not have a bar of open programs on the bottom and windows have a ...
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Fedora 8 on intel atom device using live image burn with unetboot

I'm new in LINUX, and I've been installing fedora 8 live image on intel atom based cpu ( installed on the harddrive, not usbstick) I have a running internet connection (router, Windows based PC, and ...
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1answer
13 views

Echo/Pipe command output to Serial line

I have a serial device running on 115200 baud at /dev/ttyUSB0. I need to Pipe the output of a command to it. I Need somthing like: command-that-gives-stdout | command-that-puts-stdin-to-serial --baud ...
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1answer
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Ubuntu 14 mouse single click registering/behaving as double click

Since I upgraded my Ubuntu box to 14, I was facing the issue that almost every time a folder, item, etc was single clicked, it fire a double click action. As you can imagine this was very annoying, ...
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How to auto mount vbox shared dir

In guest, i can use following to mount shared folders sudo mount -t vboxsf Download ~/Downloads my question is: how to mount it on guest startup
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1answer
11 views

Old ALSA application and PulseAudio

I have an very old application, from repository - it's soundmodem (for amateur AX.25 radio packets). I'm using Linux Mint 17 with default sound driver, it's PulseAudio. Options in application ...
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0answers
30 views

Growing an encrypted RAID5 array without causing alignment issues

Question Is there anyway to tell mdadm to make sure a certain logical sector on the RAID-device stays aligned to the beginning of a stripe when growing a RAID5 array? Problem My RAID5 is encrypted ...
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1answer
18 views

If else case for established connection

How do I modify this test such that if the number of connections to port 1234 is greater than 10 then to execute a command (like an echo something)? [[ $(netstat -tan | awk '/:1234/ && ...
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0answers
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Copy text file from a isolated server

I have a linux remote machine which is isolated from the rest of the world. To access to it I have first to connect via ssh to a gateway. When connecting to the gateway I have no prompt, but I must ...
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how to bring network up at boot time in ubuntu 14.0.4

I am write one shell script which execute on every boot, Script is as below. service lsyncd stop /etc/init.d/networking force-reload ifconfig eth0 > /home/sachin/status.txt old="0.0.0.0"; ...
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1answer
38 views

Last Windows 8 update removed Grub

I have a dual boot with Windows 8 and Fedora 20. Since 2 days ago, it worked well, but actually I rarely use W8. I booted briefly on it and it decided to install some updates, which made Windows ...
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0answers
25 views

Where to find config file for how many connection are permitted to the server

I'm not very familiar with UNIX systems yet and I need to connect to one server by telnet. When I try to connect I get following massage Connected to some.ip. Escape character is '^]'. too many ...
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What is a suitable programming language for developing a linux desktop app? [on hold]

At school we did some C/C++ programming basic stuff most problems that we solve were mathematical, as a project I want to do a basic G.U.I some buttons, check boxes. I don’t want to use C/C++ even ...
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0answers
25 views

Modify incoming packets before forwarding in Linux

I’m using a Linux (Debian based) system on which IP forwarding is enabled (/proc/sys/net/ipv4/ip_forward is set to 1). I can read the incoming packets using a raw sockets program, but I want to modify ...