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

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Adjust linux disk flush intervals to avoid blocking user processes

I'm downloading files on a sd card mounted on a raspberry pi using rtorrent, at around 6MB/s (bandwidth cap). The user process doesn't flush the data itself, and the interval at which the disk cache ...
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43 views

Redirecting display linux

from a sh shell, I am running a script calling a Software that requires opening a Gui. It ends up with a flashing window each time the call is run. I tried to unset the DISPLAY environment variable ...
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74 views

Decrease /boot size on Fedora 23

I have a problem with my /boot partition. It only has 200 MB which is insufficient - it is almost full. I have already unistalled old kernels (via dnf, keeping only the latest one) but there are ...
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58 views

How to protect Linux from Ransomware by detecting mass changes?

I wonder if it would be possible to stop running ransomware on a Linux system by detecting mass changes on files. Can watchdog or entr or inotifywait be used to detect bulk file changes and stop what ...
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122 views

How to configure tftp server on Fedora 23?

I have installed the tftp server using: #dnf install tftp-server How do i set the tftp server directory ? I don't see any tftp related config files in /etc.
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32 views

Ubuntu 14.04, SSH very slow when not running Unity

I'm running Ubuntu 14.04. I have it so that it boots up into the text-based login. I will only be using SSH to gain access to the computer. When I logged in via SSH, all key presses take a long time ...
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40 views

How do I change the label of a raw device?

I would like to change the name of sda to Arch. How do I do that? I used e2label but it only works on filesystems and not on the raw disk. nishant@arch ~ % lsblk -o name,mountpoint,label,size,uuid ...
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128 views

How to start a systemd service after user login and stop it before user logout

I have a Fedora 23 Machine. I have a directory/file synchronizing bash script that synchronizes my local /home directory to a remote directory (in a NAS machine). I run it manually but I would like ...
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92 views

Linux stuck on boot up, windows bootloader overwritten

Ahoi. I recently installed debian on my windows 10 machine, and have essentially bumloved my entire machine, it seems. I installed Debian using the 8.3.0 DVD Image from the official site, and the ...
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74 views

How to load entire process memory from swap quickly (linux)?

I run a bunch of CPU-hungry processes in parallel, they normally use a few GB of memory each. From time to time they allocate large amount of memory too (say 150-250GB). Usually at most one of the ...
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26 views

Linux : Focus on terminal window is lost when calling feh image viewer

Once my desktop (Raspbian) is loaded, I have a script launched in a terminal window that loads a fullscreen image in feh image viewer. Then, my script waits for user entry through keyboard (barcode ...
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73 views

Which X Window system is installed on my server that would work with Xming

I would like to use Xming to connect a server and managed to get it to work. I am now trying to get it to connect to a different server but i am not sure which X Window system is installed. I tried it ...
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43 views

Why would it be faster to hop SSH with pseudo-tty versus forwarding?

I have noticed that on my office's network, multi-hop SSH connections using the "pseudo-tty" method perform better (see last note) than using the "forwarding" method. Why would this be the case? In ...
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25 views

How can I pass content of Chrome internal page to a shell script?

I would like to be able to pass the content of this internal chrome page to a file "about:gpu" but I don't know how. All this with bash commands. I would appreciate your help
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59 views

Which hard drive is in better condition according to the tests performed?

I have two hard drives, both 500GB Samsung, but it catches my attention that when I test the disk performance, the graph of the results show a very different behavior ... What could this mean? Which ...
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96 views

Nginx + openvpn (proxy) and access.log

I currently have a nginx server running on 444 and an openvpn on 443 with the port-sharing feature. The both applications run well but the IP written in /var/log/nginx/access.log is, thereby, ...
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95 views

MMC card reader slow on Linux

I have been searching in and out on google and the forum about the issue I am experiencing with Linux, with no luck so far. This is my system: System: Host: wally Kernel: 3.13.0-37-generic x86_64 ...
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792 views

How do I figure out why systemctl service “systemd-modules-load” fails?

For some time I've seen some red text flashing by during boot. Today I decided to look into it. The systemctl service systemd-modules-load.service is failing with this text: tomas@bonus-debian:~$ ...
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122 views

Why do different users get different IP via the same interface

On the same server, on root, I am getting the correct internet ip of the interface root@server:~# curl -s --interface ppp0 ipcheck.com 111.111.111.111root@server:~# However... If it's not super ...
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105 views

Properly Restore Data Backup from Windows 7 in Linux (Mint)

I recently installed Linux Mint on my computer, dual booting with Windows 7. However, in the process I managed to corrupt my hard drive (trying to convert a "dynamic" Windows disk back to a "basic" ...
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197 views

Ridiculously slow read/write between two SSDs (Linux)

So I have a Kingston SSD (120Gb HyperX 3K; SH103S3/120G) that is about two years old and just picked up a new Kingston SSD (240GB SSDNow V300; SV300S37A/240G) to go along with it. I’m trying to ...
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37 views

Debian 7 java Executable Flag Disappeared

I have an up to date Debian 7 server, also running Plesk 11. Yesterday exactly at the same time (2015-09-21 11:38:13 EET) the exec flag has been disappeared from all the java executables on the ...
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123 views

CentOS 7 Can ping but cannot browse

I have install CentOS 7, I unable to update unless I add the mirror list into my /etc/hosts. I can ping to what ever domain but cannot browse unless I put the address in my hosts file. The ping ...
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220 views

Reading Encrypted Files from Android microSD Card

My wife had a Samsung Galaxy S3 which she just traded in for a new phone. I would like to get some of the files off of the micro SD card if possible but it was encrypted. I have tried using ...
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169 views

Unable to bond two Wi-Fi adapters

I have two mobile Wi-Fi routers (with IP 192.168.0.1 and 192.168.1.1) and two usb Wi-Fi adapters and trying to bond them into failover connection. Using OpenSUSE 12.3 in YaST I've chosen Traditional ...
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103 views

Different used disk space with du and quota

If I run quota I get: Disk quotas for user XXXXXX (uid xxxx): Filesystem blocks quota limit grace files quota limit grace /dev/md2 1119132* 1048576 2097152 none 6 0 ...
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315 views

Elementary os freya installer does not recognize existing OS and partitions

I have tried to install Elementary os freya on my laptop but in the partioning step it shows me a blank disk drive: 750 gb on unallocated space. when I start gparted (still in elementary os live usb) ...
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677 views

logind.conf not working, closing lid will not suspend laptop

I am running Fedora 22 on a Dell Latitude E6230.  At some point I got a software patch that broke the laptop suspending when I close the lid.  It was working, and now it is not.  I am not sure what ...
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285 views

lvmcache — one cache pool for multiple origin LVs

I have a shiny new computer with a not-that-large SSD (120GB) and two gigantic spinning-rust HDs (3TB each). I want to partition it as follows: swap (~128GB), operating system (~128GB), and data ...
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34 views

How can I read out the value of internal counter inside IPSet

I know there is an option named “counters” when creating an IP set with IPSet. However, I want to know how to read the value of the counters out, so as to know how many packets or how much data has ...
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382 views

Beaglebone DHCP Server Assigns its Own IP Address

I'm trying to run a DHCP server on my Beaglebone Black (running Debian), and I want to give it a static IP address - 192.168.17.1 - but it keeps assigning itself its own different IP address - ...
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136 views

GNU ddrescue imaging of failing hard drive is extremely slow

My friend has a (nearly full) failing 1 TB Western Digital My Passport. It will only occasionally mount on my MacBook, and refuses outright to mount on my Ubuntu box. I'm trying to use GNU ddrescue ...
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586 views

No HDMI output on Debian 8 laptop

WHAT DOESN'T WORK: I'm running Debian 8 on a Dell M4800 laptop and I'm unable to get it to talk to a new external monitor via either HDMI or DisplayPort. The Debian 8 (Mate) Live USB also does not ...
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52 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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51 views

Configure firewalld to distinguish home and public ethernet connection

I connect my notebook via ethernet at home and outside. I want to open some ports for services like samba only at home and not somewhere else. How can i let firewalld automatically detect where i am, ...
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79 views

“Open File” dialog box takes a long time to appear on all applications

On Ubuntu 14.04. While using KeepassX, I tried to open a database with the Ctrl+O shortcut, but it appeared to crash with a non-responsive window. I then noticed the same behavior with Firefox, ...
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107 views

How to switch off “you can use new shorter array creation syntax” hint in NetBeans IDE 8.0.2?

I use NetBeans IDE 8.0.2 on Linux Mint. I searched through the options few times, but I can never find the option to switch this hint off in there. I know well about the new syntax in PHP, but I ...
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2k views

OVH linux vps stuck in rescue mode

I have tried the fdisk -l command and it shows no drives at all, i tried ls and get nothing, I am pretty new at this so what should i do? the control panel on the site will not allow me to reboot in ...
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1k views

gvfsd-trash's way of clearing the trash

One of the way that make the laptop reach for its limits is when its clearing up the trash in a gnome based DE with nautilus based FM. With the trash has about a plethora of files (for example, a copy ...
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102 views

How to remove tty[7-63]?

I have an embedded system, a beaglebone black to be specific. This SBC runs Debian wheezy 7.4, and a custom 3.8.x kernel. Patched for this hardware. Anyway, the title pretty much says it all. I can ...
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124 views

Treat USB Keyboard as Gamepad

I have a second USB keyboard I'd like my computer to recognize as a gamepad rather than just an extra keyboard. Is this possible on Ubuntu 14.04? I've seen information on doing the opposite, treating ...
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206 views

Linux access to Windows 7 dynamic volumes (striped or mirrored)

I'm considering setting up a dual-boot system for the first time for many years. My plan for the system is to set it up as follows: SSD for both system partitions 2 identical hard disks, split ...
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489 views

Rendering of unicode symbols in urxvt (height / width) vs. gnome-terminal

gnome-terminal renders the unicode symbols (arrows) in my prompt different from urxvt: They are displayed across the whole line's height, have less spacing in-between, but more appropriate ...
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116 views

What does a “Copy/Cut & Paste” operation exactly consist of?

I understand the purpose of these operations. What I'd like to know is 1.What happens at the File System Level ? Does a new MFT entry for the copy get created in the destination volume's MFT and ...
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73 views

Configure three screens backed by two graphic chips in a laptop under Linux

I'd like to connect two external monitors (one via HDMI, one via VGA) to my HP ProBook 4330s LW813EA laptop, while keeping the laptop screen on as well. The Intel HD 3000 graphics embedded in Core ...
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66 views

Why does top and Google Compute Engine give me two totally seperate cpu % values?

So to preface this, I haven't done much in Linux since a decade ago when I was in college, so I may just be doing something stupid. However, for this project I am working on I'm performing a load ...
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3k views

Pairing Bluetooth device with PIN fails

I'm trying to pair my old BlackBerry 8310 to my Linux desktop (up-to-date Debian Sid, 3.15-10.dmz.1-liquorix-amd64) by using blueman and its associated tools. Scanning for the device works equally ...
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486 views

OpenVPN, L2TP, or PPTP client that is a SOCKS5 server | linux

I need an OpenVPN, L2TP, or PPTP client for Linux - don't care which - that acts as a SOCKS5 server on the local machine. It should not set up tunnel interfaces or anything like that, it should just ...
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203 views

Is there a tool like dm-crypt/luks using RSA encryption?

Is there a library/tool available for linux, similar to dm-crypt/LUKS using RSA encryption instead of symmetric ciphers? I want the "public side" to only be able to create these volumes, and the ...
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533 views

How to use DVD+RW (UDF) both in windows and linux?

I have dvd+rw disk. I would like to create UDF file system on it to use with windows 7 (and newer) and gentoo both. How must I prepare media and what commands should use to mount it in linux? What I ...