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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error: no such device … entering rescue mode … grub rescue

EDIT I'm trying out these instructions: http://askubuntu.com/questions/88384/how-can-i-repair-grub-how-to-get-ubuntu-back-after-installing-windows i had broken windows 10 on primary hdd and i ...
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Make traffic go one-way by using iptables

I have a network topology: [C1] - [R1] - [R2] - [C2] C1-R1 network is 192.168.100.0/24 R1-R2 network is 10.9.8.0/30 R2-C2 network is 192.168.200.0/24 What I need to do is to make C2 be able to ...
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1answer
19 views

Why are the file formats different?

When you go to a certain site to download an application. why can't you run the same file formats for different operating systems?
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Laptop shuts down by closing the lid when plugged, not goes to sleep as it should

I have installed Debian 8.0 Jessie with Gnome on my HP ProBook 430 G2. The weird problem is that when I close the lid while laptop is plugged, it shuts down and does not go to sleep as it does when ...
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2answers
30 views

Linux's write command issue

I'm trying to send a message to myself through write command because I want some scripts running in the background an being able to echo things to the terminal where I am. So, I get always the same ...
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1answer
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Forwarding requests to my external IP to a different IP

When I connect to my external IP in linux, it gets forwarded to my gateway (router). But I need to run a server, so I need to be able to forward requests to my external IP to my computers ip address. ...
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Copying an SSH ID to a server from a certain computer yields an error while the same command works fine from other computers

I get the following error message when trying to copy an SSH key to a remote server: ssh-copy-id -p*** ****@****.com Pseudo-terminal will not be allocated because stdin is not a terminal. ssh: ...
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How to run Cornelsen's “Tobi” software (for Windows) on linux, using Wine

There are a lot of resources on how to run Windows software with Wine, but this question is specifically about how to run a software called "Tobi Fibel" from the German Cornelsen Verlag on (Ubuntu) ...
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2answers
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Samba: Need guest/everyone read-only and writeable by users in group

I can't get this to work correctly. I can login as guest fine but when I enter the username and password for a user on the server, it doesn't accept it. Not even root. smb.conf [global] ...
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3answers
49 views

Compiling Linux kernel to boot from a 1.44MB floppy disk [on hold]

I want to compile the linux kernel (for use in a floppy linux minimalistic linux distro, which I am trying to make), but how am I going to do this in order to be fitted on a 1,44 floppy disk? I have ...
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1answer
22 views

Faster recovery from a disk with bad sectors

Recently I tried to dd from an unhealthy HDD to a file. I used dd if=/dev/sdb of=somefile bs=4096 conv=noerror,sync. My problem was that dd wasted a lot of time when it encountered a bad block. In my ...
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2answers
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Which .bashrc file to edit

On my raspberry pi (running raspbian), I'd like to edit the .bashrc file so that various actions can be performed at every login. However, I have found two .bashrc file on the system: one is located ...
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1answer
28 views

What chages and adjustments to Chrome/Chromium are most effective to lower the number of writes and prolong the life of SSDs?

Ive got a corsair Force 80 SSD, an AMD APU and 4 gigs of ram as assets as well as some thumb drives I suppose.Im running Mint Linux 17.1 64 bit in this box and mostly its used to crawl the web. Lots ...
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1answer
18 views

BASH scripting parted for GPT

Using BASH & Python scripts in Ubuntu 12.04, we are delivering a disk image to customers as a file (generated by dd). Once dd’d to the new disk, we resize the partition to fit the disk. Now that ...
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How secure is it to use a image of an prebuilt Operating System?

I've bought a Banana Pi (single-board computer) (with ARM-CPU) to learn more about Linux/(L)ubuntu. I read that closed-source or prebuilt Software is problematic in terms of privacy/security. I ...
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ChromeOS hack dont let me mount usb in filemanager app

Hello a Chrome Laptop(Samsung Series 3 ) comes to may hands, this are for internet but I wan´t use as child computer or office, because wifi internet is not very easy here. I in developer mode and ...
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1answer
11 views

How to confirm apt-get confirmation during mysql-server installation

I am trying to write bash script that will install mysql-server-5.6 I want to ask user for password and then I will use it during installation mysql-server and some other configuration. But my script ...
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why cannot I filter traffic using TCPDUMP while sniffing on wireless interface

I've 2 wireless interfaces one has the type of AP and the other has the type monitor. the AP is attached to a bridge br-lan. When I run for example: tcpdump port 5201 -s 0 -ni wlan0 TCPdump is ...
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2answers
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Locale on Debian 7 doesn't change

So I have tried all things that I could Google up but still locale settings aren't changed (kind of, you will see what I mean). To start off desired locale (lv_LV.UTF-8) is available on the system: ...
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0answers
35 views

How do I boot from a different disk?

I have a working Debian installation. It boots from /sda using GRUB2, with the root partition on sda1. Its a standard install, nothing strange. I've added a 16GB mSATA device which appears as sdc. I ...
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0answers
10 views

IPv6 global address lost after delay

I have a (gentoo linux) computer behind a home router (Fritz!Box 7360). When I initially connect it via a wired connection, it is assigned a link-local address (fe80:...), a unique local address ...
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27 views

Ubuntu 15.04: suspend from console without sudo

For years I have been able to suspend my Ubuntu-based machine from regular account using dbus-send --system --print-reply --dest="org.freedesktop.UPower" /org/freedesktop/UPower ...
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18 views

Third party encryption tool for specific folder or files

I usually store some ansible permission key files which are used for local office servers. I need to use ansible online with all nodes. At the same time, I want those files available on dropbox so I ...
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1answer
28 views

How to add Windows to grub?

The following is the list that I got when I executed the command sudo fdisk -l: Disk /dev/sdc: 120.0 Gb, 120034123776 bytes Id disk: 0x975e4baf /dev/sdc1 * 2048 206847 102400 17 ...
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1answer
13 views

Backup to offsite NAS through firewall

I want to setup offsite backup for my Windows PC. I can setup a Linux NAS in my office, connected to an intranet that is only accessible through a Linux server with SSH access (which I don't have ...
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7 views

Linux, file contents from Redis query

I want to make a linux file whose contents are the result of a Redis query. Why? I want to multi-tenant a LAMP app. The LAMP app's configuration is in a file. Rather than fiddling around with ...
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15 views

fglrxinfo shows wrong data for graphics card

I'm trying to set up a linux partition running Ubuntu-Mate 14.04.2. I have an AMD Radeon R9 290 installed. I was able to successfully download and instal the catalyst drivers, but when I run ...
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1answer
20 views

File corruption prevention strategy

I recently read about BTRFS and it's superiority in terms of error handling and noticed that I have no real plan in case data corruption happens, other than backing up regularly. I am not asking for ...
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1answer
18 views

renaming all files with similar structure to same name

I have a lot of files in subsubfolders. They all look like in.*.radiate, where * is just a number. Is there a way to rename all of them with a single command to just in.radiate? Either in linux or ...
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PHPStorm does not start anymore

I have phpstorm installed on ym Linux machine, and it worked fine before. However, now it doesn't even start: ~/.../config/plugins $ phpstorm.sh OpenJDK 64-Bit Server VM warning: ignoring option ...
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smtps service not found/“warning: connect to transport private/smtps: No such file or directory”

I'm trying to access an SMTP smarthost example.com using TLS via port 465 by adding smtps inet n - n - - smtpd -o smtpd_tls_wrappermode=yes -o ...
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1answer
27 views

copy file to all subfolders and all subsubfolders

Copy a file into all subfolders and subsubfolders. I have a file say, a.txt I want to copy it to all subfolders and all the folders within those folders. I have tried creating a script to run this, ...
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Linux - how to force the operating system doesnt go into maintenance mode

Is there any way to prevent or force a Linux System doesnt go into into maintenance mode when there is a system problem?. Example: In this case was for file integrity. Another opcion is if exist any ...
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1answer
26 views

Making sure linux uses all my hardware correctly

I have a new decent computer coming my way in a week or so, and I have a few worries. I never had to care about installing Linux before as all my hardware was pretty low standard, but now I'll be ...
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1answer
25 views

Store in server only changed files and delete them after synchronisation

I have two laptops (maybe one more on its way) running Ubuntu and I wish to keep certain directories synchronized. I've considered DropBox and I'm not happy about a couple of points: All my sensible ...
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2answers
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Apache2 Virtualhost takes me to root directory

I have a virtual host created under /etc/apache2/sites-available called attrave.com.conf Here is the code for that virtual host file (only relevant code attached): ServerName attrave.com ...
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Ubuntu 14.04.1 Trusty crashing / being unresponsive

Disclaimer: I am not an experienced linux user, and I am trying to diagnose a case where my Ubuntu goes away, and doesn't come back. The PC is a headless PC without keyboard and mouse plugged in, that ...
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How do I find which disk (volume) is failing?

I am using stock Apache Hadoop 1.1.1 and I can't get a datanode to start due to: 2015-04-23 09:12:48,138 INFO org.apache.hadoop.metrics2.impl.MetricsConfig: loaded properties from ...
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How do I add customer data to the end of a NSIS installer

NSIS allows you to insert data on to the back of their exe files and then allows you to be able to read that data back during installation: http://nsis.sourceforge.net/ReadCustomerData How do I ...
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2answers
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Rsync copying current directory with name

I want to copy current directory to my backup directory: I tried this command rsync -a . ~/backup/ but it just copies the current directory contents instead of creating new directory at the ...
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0answers
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Monitor who's connecting to your wifi connection on Kali Linux [on hold]

I'm wondering if there's a software/tool which can manage the accesses to my wi-fi connection. I'm using the modem dashboard now, but it's slow and complex, as it's not direct as a software and I ...
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29 views

MBR and GPT confusion: installing Debian on macbook air

I'm following this question and trying to install Debian on my MacBook. I've lost that account so I couldn't accept that guy's answer (I'm sorry, I'll not loose this one). So, I followed with his ...
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25 views

rootfs 100% full debian

I have a problem with full rootfs on Debian (on RPi). I noticed I can't start mysql server with error full partition. I tried looking for space hoggers with ncdu. It all appeared suddenly and I have ...
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1answer
30 views

How to fix my locale to display Unicode correctly?

I've just arrived in my new lab and japan and the server I can use has only Japanese locales. A call to locale -a returns C POSIX ja_JP ja_JP.eucjp ja_JP.ujis ja_JP.utf8 japanese japanese.euc So I ...
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Is it a bad idea to make a swap partition on a SSD?

Since it has limited amount of read/write cycles, it seems to be a bad choice but I have no solid reasoning on why or why not to use it other than that.
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Which PCL 6/PCL XL driver?

I'm trying to setup a print server via CUPS. I've been told that a generic PCL6/PCL XL driver will work fine, but in CUPS there are a million versions listed: Generic PCL 6/PCL XL LF Printer - ...
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I am having trouble getting yum update to run cleanly in Centos 7. It seems I have a conflict with the Network Manager that I cannot resolve

I am having trouble getting yum update to run cleanly in Centos 7. It seems I have a conflict with the Network Manager that I cannot resolve. CL output shows: Error: Package: ...
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0answers
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Why does Linux(and perhaps Unix) set the default chmod to 644? [on hold]

The 6 for the owner makes sense, and 4 for groups makes sense. But why can everyone read? It personally seems like an opening for potential misconfiguration.
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Change Windows to different EFI partition

So I recently had to reinstall Windows on my dual-boot system after an unsuccessful change to different SSD for my Windows install. I have OpenSUSE on sda and Windows on sdd. My sda drive has a 156 MB ...
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1answer
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Can't add default route - RTNETLINK answers: Network is unreachable

On an Ubuntu 14.04 server (3.16.0-30) I'm trying to add a default route and getting error as follows: ip route add default via 172.16.111.99 dev bond0.11 RTNETLINK answers: Network is unreachable ...