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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Mount a Samba share using Kerberos ticket

I have a Samba server (which is the domain controller), and a Ubuntu 14.04 Client with a logged user who is authenticated by Kerberos (the client joined to domain with Likewise). The user want to ...
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Getting error: “Error constructing proxy for org.gnome… Could not connect: Connection refused” when running gnome-terminal

I am getting the error: "Error constructing proxy for org.gnome.Terminal:/org/gnome/Terminal/Factory0: Could not connect: Connection refused" when I try to run gnome-terminal. I am running CentOS 7. I ...
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1answer
9 views

Dbus: How can I monitor process?

I'm new with Dbus and I'm curious if there is any way to monitor process and see if this process receives any Dbus messages. (I'm working on some project and want to know if Xserver receives any Dbus ...
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5 views

rsync error - Unexpected remote arg: root@1.2.3.4:/*

I'm trying to migrate centos server to a new box with rsync and I run this command in the destination server: rsync -auHxv –numeric-ids –exclude=/etc/fstab ...
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10 views

VirtualBox internal network too slow (frequently stalled)

I have two guests run in Windows 7 host, both of them are Debian-based Linux. Linux 1 eth0: NAT eth1: internal network (managed by Gnome by using Link-Local in the settings) Linux 2 eth0: ...
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7 views

lightdm(lightdm-gtk-greeter) black screen when reboot/poweroff

I have a extend monitor connected to my laptop. ArchLinux + systemd + lightdm + lightdm-gtk-greeter. When I execute reboot or poweroff command, Both of the 2 monitor will show an black screen(I can ...
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1answer
22 views

How to kill second gedit?

I executed this command: for run in {1..3} do gedit & done How can i kill second gedit? Because result of this command: ps -eo cmd,pid | grep gedit is: gedit ...
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31 views

What is wrong with my security here?

I followed this method for creating an email address for my desktop (so that I can automate certain emails, etc.) and when I try to test an email I get: mail: cannot send message: Process exited with ...
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7 views

In GUFW, the Ubuntu graphical firewall app, how should I interpret the “report” tab?

Pretty basic question - I've looked at the Ubuntu documentation wiki (which is the documentation linked from the gufw.org website), but it doesn't even mention the "report" information never mind ...
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1answer
14 views

Error when moving partition

I'm trying to move the partition hfs to the right of the unnalocated space in this image: I'm getting the following error: GParted 0.19.0 --enable-libparted-dmraid --enable-online-resize ...
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5 views

kvm-linux with zero(thin) client

i have to run a virtualization in my office.can i use kvm-linux virtualization with zero(thin) client? i know vmware is supporting zero client protocols well but is kvm supporting it too and i can ...
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6 views

RAID 6 Resync after system crash

I am running a home NAS server for data storage using linux (ubuntu) and RAID 6 configuration (using MDADM), however, occasionally the server crashes/hangs or experience a power-outage/interruption of ...
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2answers
28 views

Assign an individual core to a process

What I'm trying to implement is to run a python script on it's own core on Raspberry Pi 2 with Debian. One can use taskset to bind a process to particular core. But I need this core to be free of OS's ...
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1answer
15 views

Attached devices change /dev/sd value

I have a script which auto mounts my Windows partition based on UUID, reason: my attached devices change their /dev/sd value. After booting up, my external hard drive might take on /dev/sda or ...
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13 views

Mass mailing, server providers and more [on hold]

I'm looking for some information about launching mass mailing software. !IMPORTANT! I'm talking not about SPAM, because all mail templates will be confirmed by administrators, so it prevents ...
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1answer
28 views

Unable to format or write to USB drive

By mistake removed USB drive from Mac while copying something to it. After that, not able to either format it, or write to it. On clicking "Erase" on disk utility in mac, am seeing this error: ...
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1answer
357 views

what happens when mount a partition on / ?

I have a partition /dev/sdb1 what happens after executing this command? sudo mount /dev/sdb1 / -o rw ^ I know that must change mountpoint "/" address as mentioned above. ...
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13 views

Debian Testing, iwlwifi-7260 issue

I'm trying to install Debian Testing but I'm actually stuck in the wifi configuration. It asks for: iwlwifi-7260-13.ucode iwlwifi-7260-14.ucode iwlwifi-7260-15.ucode iwlwifi-7260-16.ucode ...
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5 views

“require all granted” not working with dbd auth on my apache 2.4.1

I am replacing my old apache 2.2 server with a apache 2.4.1 server. I'm in the process of testing if everything i need is still working with apache 2.4. I have some pages secured with apache auth ...
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12 views

windows partition wiped out with debian install CD and LVM

Going by my prehistoric knowledge on how to set up a dual boot with Windows and Linux, I set out to install debian over my Windows 10 installation. My single hard disk was originally partitioned into ...
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1answer
23 views

How to use the lastb command from Mac terminal?

In bash on mac, when trying to list recent bad logins, the lastb command is unrecognized, while it works fine on my Linux machine. Does it need to be installed or is it a different command for macs?
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13 views

Remove a physical partition on a Mac drive

I wanted to install ubuntu with rEFind on my Mac but I made a mistake during the installation and created a physical drive instead of a logical drive for Linux. My Mac boots fine, but I want to ...
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8 views

Use ADB with Genymotion from concurrent linux VM

I have a linux VM and a genymotion VM on my host. Both have the same network configuration (I set it up myself) which is: Adapter 1: Attached-To: Host-only adapter Name: VirtualBox Host-Only ...
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12 views

apache php7 is 100 times slower then static content

I am having slow TTFB (200-700ms) on my local web site (Vbox VM, debian8, apache 2.4, php7), so I made some bench marking, and narrowed it down to an Apache configuration. I have made 2 identical ...
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2answers
34 views

Joining Windows host to a Samba Active Directory failed

I couldn't join a Windows (2k3) computer to a Samba4 Active Directory, because I got this message on the host: Error occured joining the domain. The specified network name is no longer available. ...
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16 views

How get PCI express configuration for SSD storage?

I am looking for updating my SSD in my laptop to a newer/faster one. The one currently in the laptop is the default one that came with the purchase. It is an m.2 ssd. The problem is that I am ...
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14 views

# du -h --max-depth=1 / -> Permission denied (but I'm root)

Why in the output of # du -h --max-depth=1 / there are complains about permissions, shouldn't root see everything? root@machine:/# du -h --max-depth=1 / 529M /opt 112M /boot 20K /mnt 8,0K ...
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1answer
13 views

Making sure my desktop is locked when it goes into sleep mode

Is there a way to install some kind of a hook that'd make sure xlock or a similar program is called before my laptop goes to sleep, regardless of the origin of the request (calling pm-suspend from a ...
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7 views

Linux Packages installing fix

I'm using Linux Backbox but when I want to install a package in the terminal it says: package not located. Can someone help me please?
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2answers
17 views

Use Ubuntu in Window server 2008 in virtual machine?

Recently our group has purchased Window Server 2008. Though most of us use Windows I require Linux system for my work. I read about virtual machine but I am not sure which one to use to utilize ...
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1answer
6 views

Can't modify directory contents where I am part of owner's group

I am not able to create or delete files inside a directory which has www-data as owner and has relevant permissions as far as I can see: ankblog$ ll total 88 drwxrwxr-x 7 www-data www-data 4096 May ...
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12 views

how to setup ftp server on cloud9

i have turned on ftp mounts in cloud9 preferences . i have to enter Name, hostname username, password and remote path as specified in the link below https://docs.c9.io/docs/ftp-mounts. I tried ...
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14 views

Cloning disk to new SSD drive

So, I've recently bought a 1TB SSD for my notebook. The orginal one was a 1TB spinning disk. I "dd" from the old disk to the new one and everything went fine, I'm using it with no problems at all. I ...
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1answer
26 views

Installing KDE 5 in Linux mint 17.3

I have been trying to install KDE 5 on linux mint 17.3 Rosa I know I need to add a PPA to do this first, I have been trying both sudo add-apt-repository ppa:neon/kf5 and sudo add-apt-repository ...
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8 views

How to mount 3 ISO images as repos in SLES using zypper

I'm wanting to mount the three ISO disks of the SLES11SP3 OS onto my system, as we have a minimal installation and we need to zypper install some additional packages. zypper addrepo ...
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1answer
42 views

CPU capacity not fully used - Stuck at 16%

I just bought a new Laptop. The problem is that it only uses 16% of its CPU capacity, and never goes over that. I have tried stressing the CPU, but even then it still doesn't go over 16% Booting in ...
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2 views

OpenVPN on KVM VPS - No ping or network access

I want to use OpenVPN on a KVM VPS and it seems that everything is configured just fine. The connection is getting established with server but I can not even ping 10.8.0.1. IPTables is completely ...
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1answer
16 views

Shrink total disk image: UEFI GPT Flashdrive - freespace at end

I have a disk image from a bootable flashdrive. It is GPT for EFI booting, so there is a small Vfat32 partition and three other Linux partitions, followed by about 3G of free space. I need to disk ...
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1answer
36 views

Fedora 23 has stopped installing new programs and updates

I have been using Fedora 23 for the last 2 months and since yesterday DNF has stopped installing or upgrading programs. This is the error message I got in the Yum Extender - Powered by DNF: ...
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15 views

Dual Boot Fedora 23 and windows 10..windows 10 not booting

I am a newbie and recently installed fedora 23 on my windows 10 through partition. After installing fedora 23, I get 3 options in the menu to select the Os i want to boot. 2 options for Fedora 23 and ...
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1answer
18 views

Limit CPU frequency on Ubuntu Linux

I'm looking for a way to limit CPU frequency when system is running on battery. Solution doesn't have to work exclusively when using battery, it may be in form of bash commands from which I could make ...
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2answers
30 views

sed command to replace multi-line text with empty

I have an XML file which contain portion as given below. <Target name=something> < other content here> </Target> Now how can I remove this content from my file using sed ...
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14 views

SSH Write failed: Broken pipe on Ubuntu 15.04

I'm using Ubuntu 15.04 (let's call this CLIENT) to SSH into another linux machine (let's call this SERVER). And, sooner or latter, I get Write failed: Broken pipe I tried SSH to the SERVER from ...
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1answer
14 views

How to set GRUB to auto boot into windows if there is no user input

I would like to know if there is a way to configure GRUB so that it will auto boot into Windows if there is no user input after a while. This is to smooth out the process of Windows update. As many ...
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22 views

How to install Linux/Windows with bad RAM

I have a sub-notebook (Sony VAIO SVP) where Windows boots to a BSOD. By now, I have found out that the RAM has some errors. Since RAM, CPU and FlashDrive are solderd to the board and the warranty has ...
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2answers
15 views

Delete files with same size but keep always one file?

I have a directory full of zipfiles, that contain many files. They are created by software and this is currently not fixable. I tried to work with fdupes, but this process took too long, because there ...
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5 views

notify-send with sudo not showing any notifications

In short: I have a scripting finding, fixing and mounting a partition, thus this needs sudo / su permissions. System: Gnome 16.04 - amd64 notify-send "a message" that shows a notification as ...
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1answer
23 views

su user executes command as root

Short Background: when running a script that uses notify-send "title" "message", it is expected to show a notification, but sudo ./script does not show notification After reading up and visiting ...
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1answer
22 views

Can not change permissions while root

I use Kali Linux and discovered the following "problem": root@kali:/proc/self# ls -l cmdline -r--r--r-- l root root 0 May 27 13:43 cmdline root@kali:/proc/self# chmod 744 cmdline chmod: changing ...
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1answer
22 views

Hard Drive Error

Hello please look at error log below and suggest me solutions. I am using Fedora 23, I am getting this error while installing or updating and package. so my log from "/var/log/messages" is... May 27 ...