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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Check if a daemon triggers watchdog

I read about sd_notify (http://www.freedesktop.org/software/systemd/man/sd_notify.html) and was wondering if it's possible to somehow find out if a daemon sends some notifications. In particular, I ...
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1answer
14 views

Access TrueCrypt mount over network

I'm running Linux Mint in a Virtual Machine (VMWare) with a Windows 7 as host. I shared one of my Windows partitions to access it in the Linux guest using Samba because of a problem with permissions I ...
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16 views

CentOS 7 on VirtualBox Using 100% CPU

I have CentOS 7 installed as a guest in a VirtualBox 4.3.18 virtual machine, with the latest guest additions installed too. The host operating system is OS X Yosemite running on my 2014 MacBook Pro ...
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4answers
247 views

Is SELinux important if I'm the only one who uses my computers?

I've got two Fedora laptops and a CentoOS home server, but I'm the only person who uses any of them, with the exception of a smb share that a family member uses. Does SELinux have any real benefit if ...
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7 views

How to find the culprit of high sysload on NAS?

I have a QNAP TS-410 NAS, modest little ARM-based box. In the past the sysload of the NAS would be well below 0.5 for all load averages (1, 5 and 15 mins), it would only spike while sabnzbd was ...
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5 views

Can't send email to my own domain

I've set up sendmail on my ubuntu server and I have the following PHP code set up to email my own domain contact@example.com: $subject = "Hello!"; $message = "This is a test."; $header = "From: " . ...
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1answer
11 views

Way to easily identify all default fonts in applications?

Debian Kwheezy (a Debian Wheezy spin with KDE), came bundled with every imaginable font and hundreds of fonts that are there to support various foreign languages in their extended character sets. A ...
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4answers
298 views

On Linux or Windows, how do I find the path for all mp3s that are the only mp3 in that directory?

I have a Music folder and the contents look like this: Music     -ArtistA ...
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11 views

Installing lscpu utility on Redhat 5.11

I am using Redhat 5.11. I require an utility 'lscpu' which comes with "util-linux" package from version 2.15 (read somewhere on Internet). The max version of util-linux package that is supported by ...
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1answer
7 views

Dotted lines in GTK3 Theme

I recently tried the Vertex Theme, you can get it here in case you are interested. It looks very decent in my opinion, except for the dotted lines in windows using GTK3. As they seem to be for visual ...
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1answer
28 views

“Unable to Display Current Owner” & Access Denied when trying to take ownership

I'm facing a problem where I (logged in as the Administrator) am unable to view file attributes. Please see the screenshot below. I'm not interested in taking ownership (even if I wanted to I'd to ...
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16 views

Recommended Partition Layout for a Debian VirtualBox Server

First I posted this on Unix & Linux, but got no response so I deleted my post there before moving it over here - so this is not x-posting. I understand the basics, but I have a few requirements ...
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2answers
19 views

Recommendations for running Linux together with Windows 7 on Toshiba Satellite

I have never installed linux before, but I would like to run it on my Toshiba Satellite C660-1UJ (64x, 4GB RAM, Intel Core i3 CPU - 2.10 GHz) next to the current Windows 7 Home Premium OS. I read some ...
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1answer
26 views

Linux Mint 17 Windows network shares

I have installed Linux Mint 17 Cinnamon on my desktop in an effort to migrate from Windows (and only keeping a VM with Windows) but soon I discovered that I can't see any workgroups after I click on ...
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9 views

ntpd works not as expected when the offset becomes large

I changed the /etc/sysconf/ntpd with the option -x added in ntpd client server.And I found ntpd works fine when the offset between the client and server is less than about 10 minutes.If more than 10 ...
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7 views

rpm signing error rpmMkTemp failed

I'm running into this error when signing an rpm file. I've not got a whole lot to go on as you can see, and google seems to have come up empty. I'm stumped ! Does anyone know what causes it ? I'm ...
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0answers
6 views

Making a connection between puppet and puppet agent.

I know this question has been asked before in many different variant. I read all the post related to the problem but I cannot get agent and master talking to each other. I boot up 2 vm via vmwork ...
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1answer
12 views

Linux console periodically hangs for sporadic, short periods of time

I am working with embedded Linux, and I have some strange behavior on custom board, in which the serial console—connection via UART—hangs for a 1-2 seconds every 15-20 seconds: The entered chars in ...
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6 views

What is the command to check supported ciphers on a SMTP(TLS) server

What is the command to check supported ciphers on a SMTP(TLS) server I need to check the supported ciphers for SMTP
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0answers
9 views

How to access mail in an organized manner

I just finished setting up postfix on my ubuntu 14.04 server, however, to access my mail I have to use command line. How can I make it so that I can access the mail in an organized manner, like ...
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1answer
9 views

how to monitor network/cpu/memory/disk usage by each Rails app

I run many Rails app on linode VPS I want to charge my customers by their usage, Is there anyway to monitor each Rails app's usage ? I need these information network/cpu/memory/disk usage Any ...
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14 views

How do I share my wlan0 internet connection to eth0 using command line and config files?

I understand how it is done using the GUI (1, 2, 3), but I need to do this manually using Linux tools/commands (iptables, eatables ...). What are the configuration steps and commands to use, ...
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2 views

Configure CUPS to run all printouts through Ghostscript to embed fonts

My office printer (some HP product or other) substitutes Courier or a look-alike for any font that is not embedded. Naturally this looks horrible. I would like to configure CUPS so that it runs all ...
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6 views

Why am I getting “FATAL: Ident authentication failed for user ”root“” after changing rails server to port 81

I was running my rails app on the default port of 3000. I opened port 300 with: sudo iptables -A OUTPUT -o eth0 -p tcp --sport 3000 -m state --state ESTABLISHED -j ACCEPT and sudo iptables -A ...
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2answers
22 views

How to migrate a root filesystem to another partition from within running system?

I try to migrate a root filesystem from ext4 to another partition type (zfs) and started with a simple rsync -a --exclude=/boot --exclude=/mnt --exclude=/media --exclude=/tmp --exclude=[all zfs ...
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2answers
28 views

Windows 8.1 Advanced startup options disappeared

OK so a bit of background: I need to disable driver signing because I need to install a modified driver so that I can hook up my PS3 controller. I have a dual boot setup with Mint 17 and windows 8.1 ...
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1answer
20 views

How do I set a static permanent IP on a raspberry pi [duplicate]

I have an NOOBs-Raspbian Raspberry Pi. How can I set an permanent static web IP to it?
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1answer
10 views

Error compiling the linux kernel 3.8.0

I am trying to compile the Linux kernel on my virtual machine which is installed Lubuntu, and I am getting the following error: In file included from ubuntu/aufs/aufs.h:45:0, from ...
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1answer
21 views

How to build an sd card image, without an sd card?

We have a scripted process that builds up an embedded install of Debian Jesse on an sd card. The relevant parts of the script look like this: export DISK=/dev/sdb umount ${DISK}1 # make sure no ...
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20 views

How to keep ppp up and running

I'm using a USB Cell Modem on a Arm SBC running Debian Jesse. I have a wvdial.conf file and a ppp0 file in my /etc/network/interfaces.d directory: auto ppp0 iface ppp0 inet wvdial It mostly Just ...
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2answers
15 views

Virtual folder combining a read-only and read-write directory (file deduplication)

Is it possible in linux to have a directory that contains all the contents of another directory (in a read-only fashion) but you are able to write to the directory without it affecting the 'parent' ...
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3answers
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Debian Linux: /usr/bin/nologin missing

I have set up a Debian Linux server, now I want to disable the shell so the user can't login and just connect via SFTP. But my /usr/bin/nologin is missing for some reason. In which package is it ...
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1answer
23 views

Passing different set of arguments to the different commands in a linux bash script

I am writing a bash script foo.sh that runs too commands bar with first input argument, and baz with the second argument: #! /bin/bash bar "$1" baz "$2" Now I want to make foo.sh more flexible, ...
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2answers
25 views

How to execute a system command one minute after reboot (Linux)?

Is it possible to run a system command such as mount a certain amount of time after system reboot? My problem is that I had an entry in /etc/fstab to mount a host disk in a Linux (Ubuntu) virtual ...
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22 views

install ipkg on DS413j DSM 5.0

I would like to install sudo with ipkg. First ipkg need to be installed. You can find the bootstrap tutorial of Synology here. The DS413j has a Marvel Kirkwood mv6282 ARM processor. So I used this ...
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4answers
33 views

Connnect to Linux from Windows using PuTTY over the Internet

I want to connect to Linux from Windows using PuTTY, over the Internet. This will give my friends access to execute shell script files on my Linux (Ubuntu). I have tried this on Windows 7 and Linux ...
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5answers
48 views

How to copy hidden (starting with a dot) files and subdirectories in linux?

How to copy hidden files and hidden subdirectories (the ones starting with a dot) in folder A to folder B? For example if I have this structure: A/a A/b A/.a A/.b/ A/.b/somefile A/.b/.c I would ...
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6 views

How to add files to dotfile-castle with homesick?

So I've setup my dotfiles repo on github and installed homesick to manage my dotfiles. So now I happend to have a clone of the repo on my local machine but also a cloned CASTLE ...
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13 views

Script output from Curses program like mtop

I'm trying to write some automated scripts to store things like cpu usage etc. In 'top' there is a batch mode, so I can output this fine. In a program like mtop, where it uses 'Curses' and no batch ...
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1answer
24 views

How can I fix a Debian VM booting to a black screen?

I have a VDI file with Debian installed on it. When I start the VM, GRUB is run and after choosing the system's version (restore or normal boot) a black screen appears. How can I diagnose what the ...
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11 views

Email backup from terminal without rc file

I am looking for an application that I can use to backup all my different IMAP accounts. It needs to be done from the Linux terminal so that I can script and schedule it using cron. So far I have ...
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0answers
13 views

Firefox image view using css from chrome:// schemed URL

I am running Firefox on Debian Linux. When I view an image directly (e.g: http://localhost/image.png) and I open the element inspector I see the following code: <html> <head> ...
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2answers
31 views

sudo cp with wildcard syntax doesn't do anything in Linux

I have a directory containing files that are owned by root, from this directory I wish to copy all the files ending with errorAll to another directory. My wildcard syntax is correct because performing ...
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0answers
11 views

How to mount only a part (byte- or block-based) of a device file? [on hold]

How can I create a block device file of an existing block device file of size z (including a file associated with a loopback) so that a certain byte x (with x > 0) appears as first byte, x+1 as ...
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1answer
15 views

Keep screen running after starting it with an alias and running some commands

I have a bash alias to move into a project folder, start screen, and pull new changes from git. it looks like this: alias start_manager2='cd ~/programming/manager2/ && screen -t "main" ...
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9 views

Start user systemd service once logged in and network up

I have a Gentoo system running KDE as a desktop. This is installed on SSD and using systemd and so it generally happens that the system boots and I login quicker than DHCP can do its thing and get an ...
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5 views

Disabling Mod SuExec

hello i have installed kloxo latest on centos 5.10 in one of my sites i want to use cgi scripts i give permission (0755) to cgi scripts ... and edited httpd.conf commented this line : ...
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18 views

Why has my Debian testing VM suddenly stopped loading X Windows System?

I recently installed Debian testing (jessie as of writing) into a VirtualBox VM. After installing, I loaded make, gcc, and dkms so I could install the Guest Additions. After installing Guest Additions ...
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5 views

OpenWrt Script (Inifinite Loop) Stops sending data over Serial Port

I have a TP Link Router TL-MR3020 flashed with the latest Attitude Adjustment. It is connected to an Arduino Uno via the usb port (usb cable into the arduino's type b connector). I have the following ...
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1answer
18 views

How to view mail through a client?

I just finished installing the postfix mail server and I was wondering how I can view my mail through a client rather than through command line? What clients exist for this and which are considered ...