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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Kde custom resolution

Everything is just a tad too small on Kde plasma 5 on my 1080p laptop. Everything looks peefect when I force 1600x900 using xrandr but a logout removes this setting and kscreen does not give it as an ...
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apt-get install libphp-phpmailer not including class.phpmailer.php

I am installing PHPMailer on a Ubuntu 14.04 LTS server. I ran the command apt-get install libphp-phpmailer. It installed the files under usr/share/doc/libphp-phpmailer as expected. However, it is ...
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How can I enable arbitrary users to edit files in '/opt' sub-tree?

I am user 'somebody'. I have a typical "Web blob" website ecosystem ( essentially an FS sub-tree starting at Apache's typical "htdocs" directory ). Its files are owned by 'root', and grouped to ...
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mysql wont start after moving it [on hold]

i moved my sql from /var/lib/mysql to /home/mysql and changed datadir in /etc/mysql/my.cnf and then tried to start the server and it gave me this error Note: im running Debian GNU/Linux 8 (jessie) ...
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CentOS 7 Terminal Timeout

This seems like this question should have already been answered, but I don't see any info on google or stackoverflow. I have a VNC server running on a CentOS 7 box where I do my development. Every ...
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An unexpected TLS packet was received setting up VSFTPD - Filezilla

I'm setting up an FTPS server under linux Ubuntu 14.04.01 i installed VSFTPD using apt-get install vsftpd then generated an openssl Key using: openssl req -x509 -nodes -days 730 -newkey rsa:2048 ...
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5 views

Linux SSD encryption with TPM

I have a ThinkPad Yoga with a TPM and I have installed a Crucial MX200 that supports Opal 2.0 encryption. I would like to know my best option for encryption in Linux. I would like to have a little ...
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5 views

External drive is extremely slow and freezing when saving files on it

I'm cloning repositories on my 5T external drive. It is extremely slow. It is not an SSD, but I feel that something is wrong somewhere. I created two partitions on it: 10k MB (~10 GB): ext4 the ...
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Linux: How does file modification time affect directory modification time and directory access time?

I would like to learn more about how file access time and file modification time related to directory access and modification times. I did read the "questions allowed here" but if there is a better ...
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9 views

Bumblebee In Linux not working (Nvidia 970M)

I'm new to Linux system here, I run Ubuntu 15.10, and have Bumblebeed and bumblebee installed. However, every time I try to run Optirum (e.g optirun firefox), this error comes up. [ 2137.822002] ...
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nohup node process is killed on closing putty (but not on exit)

I am running my node server on a cluster by remotely connecting to the server using Putty windows interface. I am running my node process as nohup .. & , so that it runs in background and does ...
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How to connect two different OS machines using Ethernet cable for file transfer?

I have Linux Mint (Similar to Ubuntu). When we try to connect two Windows PCs through an Ethernet cable, we can directly transfer the files. But when we replace one machine with a Linux-based PC, it ...
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1answer
18 views

How to pipe output of active stream to other commands

I'm trying to pipe an active stream to another command (maybe a bash script), but it always wants to wait for the entire stream to finish before it processes the command. s.g. I can do this: tail ...
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44 views

Why does Windows not need a low latency or real time kernel

All Linux distros have problems with latency when audio recording , gaming ,etc. But the Windows kernel can be used for audio recording , gaming or anything without a delay. Why does Windows not need ...
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BIOS forcing windows 8.1, can't boot from USB to install Linux

I purchased this mini-pc, Kaser YF751A-W. The hardware is closed, and I see no screws, so I can't go unplugging drives, or changing any switches/jumpers. The manufacturer's website kasercorp.com ...
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1answer
20 views

Nautilus not working on sudo

I've got Trisquel 7 GNU/Linux distro, with GNOME 3.8.4. I'm finding impossible to create a folder in Nautilus, or drag and drop files into the Desktop, out of other options. I find this quite ...
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Shape recognition, cropping and rotation

I have a book where each page is a photographed picture (double sided). The next step is to clean up the images. Issue number one is that on quite a few pages the page is rotated a little bit right or ...
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6 views

Use Different Dropbox Account On Linux (Ubuntu)

I installed the Dropbox application / service on my Ubuntu (2015/v15.04) installation. I logged in at the time to one Dropbox account. I have another that I share, now. Ideally I could use both at ...
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1answer
6 views

Russian keyboard layout on French keyboard (debian 8.3)

I have laptop Lenovo Z51-70 with french keyboard (keys and their position, because french keyboard have little differ keys combination). To use correctly "classic" qwerty-english layout i use "mac ...
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1answer
13 views

How does dpkg know that a config file has been deleted?

I recently had an odd problem where I would install zsh (apt-get install zsh) but it would not install the config files - specifically /etc/zsh/zshenv and friends. Following some considerable time ...
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9 views

Can I setup my Linux PC to broadcast two different Wi-Fi networks using only one adapter?

I found that my OpenWrt enabled router can broadcast two Wi-Fi networks, one bridged to the WAN port and the other bridged to the LAN ports, both working. As is shown below: Screen snapshot of my ...
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1answer
5 views

How do i prevent lilo from doing a disk scan?

I have gentoo installed using root on LVM on RAID5. I made a mistake when I set up lilo but the initrd created by genkernel caught it and allowed me to type in the correct root partition. I have ...
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17 views

Boot from live usb in safe mode

I wanna install Arch Linux on some old laptop (with 500Mb RAM) and I faced a problem: after pressing Start Arch Linux system goes nowhere and nothing happens. As I guess it can't find any VGA ...
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GNU screen - open new window in working directory of current window in a named (sessionname) session?

In order to open a new screen window in the same directory as the current working directory of the screen window you are launching it from (rather than the directory you initially launched the screen ...
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4 views

Unable to detect lun in RHEL4

Unable to detect newly added lun in RHEL4 running with 2.6.9-103.ELsmp..Tried LIP protocol but that didn't helped echo "1" > /sys/class/fc_host/hostx/issue_lip Any help is appreaciated
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22 views

Remotely running an ssh session

For some work I need to do, I need to have a PuTTY session open on my laptop for a few hours at a time to let some scripts run. However, I'm often on the go and am unable to leave my laptop sitting ...
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11 views

Incremental Snapshot Style backups with rsync on NTFS

I've taken over development of an embedded Linux product which needs a reliable backup solution. Backups are to be performed without compression to an attached USB storage device formatted to NTFS. ...
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16 views

Recover text file that I deleted with “cat” command

I used cat > filename while not thinking about it, then hit ctrl + c and naturally enough the file is now empty... Is there a way to recover that file's contents?
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9 views

Install openjdk 8 on Mint 17.3

I am trying to install openjdk 8 on my Mint 17.3 It is based on Ubuntu 14.04 which does not have openjdk 8 in its repositories. Although, I was able to find a link where someone just says that it is ...
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17 views

Debian : Encrypted Raid 1 setup.

We have a Debian X64 server which has the following config. One single 512GB SSD, which has our OS and two 2.0TB HDD's which have data like attachments, etc. The two 2.0 TB drives are in RAID-1 ...
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print lines containing limited words in the second field

I have a symbol table of the form M07UP49A0870I422.wav <s> haraa keelaa <bn> </s> M07UP49A0870I423.wav <s> <horn> jau <babble> </s> ...
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Allocate more RAM to VirtualBox VM on hard disk [on hold]

I downloaded VirtualBox on MacPro running El Capitan. My VM is a 64-bit Linux Ubuntu, which I recently copied to a hard disk with 32 GB memory. I want to give the VM all 32 GB of RAM, but VirtualBox ...
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how do I change which partition the file downloads to?

So, I've been trying to install gentoo for months. I have tried over and over again. However, when I try this step: ...
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Found duplicate pv in disk scan

I have vps, i attached another hard disk, it contains the same partitions i have on my current linux, it has / and /boot and swap. i need all data on / partition. here is the output of lsblk: NAME ...
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27 views

Perl IRC Bot running on the machine

I had someone hacked into my linux machine and was running a perl code which seems to be some kind of a bot. The next day I got a call from ISP saying that there are large number of spam mails ...
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How to read raw serial data on linux?

I'm working a project for school that requires us to send data from our embedded system on a FPGA back to our host computer over serial. I have a UART instantiated in my FPGA and I have done all of ...
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rsnapshot exclude_file not working for local backup?

I've setup rsnapshot for 2 Ubuntu 14.04 servers. One is over SSH, the other is local. The configs are almost exactly the same, however the local backup seems to not honor the exclude_file. Global ...
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11 views

Cannot figure out what eats disk space, CentOS6

Here is disk free info: root@nqpc002/]# df -ha Filesystem Size Used Avail Use% Mounted on /dev/sda2 103G 85G 13G 87% / proc 0 0 0 - /proc sysfs ...
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Ubunut 14.04.3 LTS network stopped working on VMWare

After restart, networking suddenly stopped working and I'm unable to connect to internet. ifconfig -a eth0 Link encap:Ethernet HWaddr 00:0c:29:c9:1a:f3 inet6 addr: ...
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24 views

DNS server (bind9 on Debian) problems with Windows 7

I have made a home server in my house (for downloads, get arduino readings and stuff like that) I want to access this server with a domain (Ej, mylocaldomain.com) to do that I have configured a bind9 ...
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2answers
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How to login ssh without a password using the ssh host key?

I want to login to this machine, but I just have an ssh host key, not a password. Example from nmap: | 1024 b6:00:e3:71:8c:a3:4e:e4:8b:9a:b5:c2:68:86:de:82 (DSA) |_ 2048 ...
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1answer
17 views

useradd user with group with same uid and gid

I want to add a user named "nexus" with uid as 1234567 (example number) and gid 1234567. I'm running the following command: sudo useradd -r -U -u 1234567 -g 1234567 -m -c "nexus role account" -d ...
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Wing IDE on Kali Linux

I am trying to install Wingide 101 on a 64 bit Kali Linux vm, I have downloaded the Wingide package (wingide-101-5_5.1.9-1_amd64.deb) from the wingware site and followed the directions outlined on the ...
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1answer
16 views

What is the noauto mount flag for?

Entries in fstab exist ONLY to specify things to mount at system boot or manually with mount -a, right? But I was reading up on the noauto mount flag, which apparently makes corresponding fstab ...
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Creating a development VM from Arch Linux

I'm trying to set up a particular development VM. I'm doing web development, so it will host some version of LAMP. What I want to accomplish: I'd like it to be Arch. I want to be able to ...
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List the monitors physically connected to remote computer (make/model details)

If I were sitting in front of the computer I could run xrandr --query in terminal but this doesnt tell me the make/model (at least i know something is connected) but while remote (using ssh) I receive ...
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1answer
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iptables routing of wlan0 to usb0 and usb1

Server: wlan0 (WAN) - 192.168.0.17 usb0 (LAN) - 192.168.2.15 Client: usb1 (LAN) - 192.168.2.2 wlan0 <-> usb0 <-> usb1 How do I configure a NAT to share my wlan0 internet access to my ...
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Connecting a port in linux from other machine

I'm going fast to asking this question so i'm apologize. I'm on Linux Fedora 23. I'm running an application Telegram-CLI with listening a port using this argument. -P 1337 That is fine and works ...
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Why can't Ubuntu read external volume files after I recursively { chmod +r and remove ACL }?

The commands I used are: sudo chmod -RN /volume and sudo chmod -R +r /volume The external volume is a backup of OSX home folders. The above made it only possible to read what contents is in the ...
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EVIL AP - Internet connection bridging issue

I've been trying to create an EVIL AP scenario in my test lab for a couple of days, but I always face the same issue. I can connect to the WIFI adapter and I receive an IP address etc, via dhcp. ...