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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Samba is denying write access with inherit permissions set

I'm setting up a new Debian Server with Samba, in NT Domain Mode (I know, I know... But it's a stand alone for hosting small files!). I want to use inherit permissions on the share, so that I can just ...
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17 views

Linux cpu usages high but clock speed is low

I am running a game server (ark survival if it matters) on Ubuntu Linux 14.04 and when the number of users connected increases the CPU usages also increases, which is as expected. But the clock speed ...
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18 views

Slurm: apply --ntasks-per-node to job arrays

How do I get --ntasks-per-node to work with job arrays? I have a test where I submitted a job array of 1-5000 using --ntasks-per-node=2 onto a grid with 36 nodes appearing in sinfo... and it's ...
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38 views

Install ruby without root access on CentOS

I'm on a clean CentOS install without sudo-rights. I had installed ruby-build locally and then tried to install Ruby 2.3.1 with ruby-build 2.3.1 ~/.local/opt/ruby-2.3.1. I got this error The Ruby ...
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12 views

Snort packet drop rate measuring

I am running 12 instances of Snort (1 instance per core) with PF_RING enabled in inline mode on Ubuntu 12.04 x64. How can I measure total packet drop rate? ifconfig shows 0 dropped packets which is ...
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2answers
19 views

Cannot install afpfs-ng

On Xubuntu 16.04LTS amd64, I cannot install afpfs-ng. This is a HUGE problem for me since my school uses macs and an afp file server, and I only have a PC running Linux and I need a file for the ...
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1answer
32 views

Copying entire file system (linux)

I have a need to copy an entire file system (several TB) from one disk (Raid array) to another. It would be nice to keep the file system online during the transfer as the file system is used (lightly) ...
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16 views

How to prevent users to exchange files with other windows machine?

I am trying to remove supporting Windows filesystems such that if a user inserts a USB formatted with NTFS or FAT, the linux system doesn't recognize it.
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37 views

kali linux stuck in log in after veil-evasion install

I am running kali(4.3.0-amd64) guest in vmware.I need veil-evasion whose prerequities is wine32(if u don't know then just say it is an emulator to run window app). The prorblem i'm facing is after ...
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1answer
30 views

Nightmare Mode:No booting from USB,LIVECD or OS using a laptop

I am feeling very stupid. I cannot boot from CD, I cannot boot from USB and I have no OS installed on the laptop. Backstory: This computer is old. I couldn't boot from usb or cd, but wanted to ...
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1answer
21 views

Lampp (xampp) stop after reboot, not work autostart on Ubuntu

I am working with Ubuntu Server 15.04, I have a problem at some point in the night the computer restarts or shuts off the power goes out or simply stops working the lampp (Xampp) apachefriends, I ...
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23 views

How do I set up an NFS mount in OSx?

I recently purchased a NAS that supports NFS. I am trying to mount the NAS NFS filesystem on a macosx, so that multiple users can use it. What is unclear to me is how user names and permissions are ...
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0answers
45 views

Using Samba to share a folder from a Linux guest with a Linux host in VirtualBox

I have a VirtualBox vm (Slackware 13.1) which runs a samba share. I just moved that vm from a Windows 7 host to a Linux host (Slackware 14.1). But now I cannot reach the share anymore. Why? That's ...
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1answer
27 views

APC UPS reports battery charge 000.0%

I have a Back-UPS CS 500 attached to a Linux PC (openSUSE 13.1 x86_64) that since this morning reports BCHARGE : 000.0 Percent TIMELEFT : 0.0 Minutes The other values seem normal to me: $ ...
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0answers
23 views

Boot Repair Disc : GPT detected

Today, I decided to format my whole system and installed win7 first for which i created two partitions one for c drive and other for keeping my data and remaining space unallocated. After this ...
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0answers
19 views

Virtualbox - auto resolution used to work but don't anymore, clipboard still works

I run Virtualbox on my mac to have access to a Linux (LUbuntu 14.04). I installed it three days ago, and after a few googling I managed to set it up properly, with the resolution working fine. But ...
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1answer
12 views

How to transfer WinRAR key to Linux

Situation: I have bought WinRAR license some time ago and have rarreg.key file. I would like to continue using RAR program on Linux licensed with my key. Question: Is it possible to transfer ...
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1answer
30 views

How can I find invalid images?

I have a directory with sub-directories. In the directories, there are a lot of images, crawled from the web. How do I loop through every file and show those files which are not valid image files? ...
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1answer
20 views

dd aplied to dev USB before connect corrupt /dev/sdX and dont work

I have a USB where I'm coping an ISO of 5 Mb aprox with a small OS with its own grub. If I connect the device and check it sudo fdisk -l I get: ... Device Boot Start End Sectors Size Id Type /...
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1answer
52 views

How to extract specific data from the table?

Here is the table... Group Name Designation 2 (John) Front End Developer 12 (Jim) Back End Developer 8 (Jill) Full Stack Developer 21 (...
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1answer
42 views

Using WSL as a server

I recently got WSL installed, and after playing a bit was wondering about a couple things... first, is it possible to treat it as a server? For example, if I wanted to host a small mysql db- it looks ...
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1answer
26 views

Is there a tool like diff -r that compares a directory tree against a manifest file using hashes?

Here's my situation. I have two cold-storage archive volumes that (should) contain identical sets of data. These volumes contain infrequently accessed backups. I am concerned that, eventually, bitrot ...
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1answer
62 views

How to install Windows on Linux

I need to install windows (7-10) under linux. I found a way to deploy wim-image, i have a problem with bootloader. I didn't find a way to boot from grub directly. I wanna try to copy bootmgr via dd. ...
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0answers
23 views

Ethernet adapter/router stopped generating/assigning global IPv6

My ISP provides dynamic IPv6 addresses which i use in conjunction with a DNS update script and a domain to access my computers from anywhere, but for some reason my ethernet network adapter or router ...
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1answer
77 views

How can I logically separate interfaces on a host?

Problem Introduction I have a network topology which looks like the below diagram. All hosts are running different Linux distributions, and all my configuration should (hopefully) be done on Host A, ...
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1answer
49 views

Why does sudo depend on vi?

the package sudo-1.8.15-2.fc23.x86_64 in fedora 23 depends on vi, as attested by: $ rpm -qR sudo | grep vi /usr/bin/vi Why? Is it a mistake on the side of the package maintainer? This dependency ...
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11 views

USB drive gets write protected after first operation in ubuntu

Inserting my drive on my Ubuntu Linux makes it write protected after the first operation (either copying or writing). The drive is normal on windows even after. I have not checked it on other Linux ...
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0answers
12 views

Date settings only last 30 minutes

I need to update the date for a Accesspro 4 access control. It uses busybox 13.4. I´ve configured the date via different ways #date -s "2016-06-13 14:00:00" or #date +%Y%d%m -s "2016-06-13 14:00:00" ...
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2answers
40 views

How to add a second local loop_back address?

I already have a loopback address at 127.0.0.1, which corresponds to a host in the local loopback network 127.0.0.0. How could I create a second local loopback host with an address of 127.0.0.2 ?? ...
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0answers
11 views

Expanding storage on a soft RAID10

From what I understand this is possible, but I can't find a straight answer anywhere about how exactly to go about it, and I don't want to risk losing data experimenting with it myself so I'm asking ...
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1answer
25 views

linux ls show seconds for recent files only

linux coreutils ls command shows when using with "-l" option timestamps including hours and minutes for recent files and shows year instead for files older than six months and newer than now. I would ...
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30 views

Concerns about the order of the bytes in the stack

I'm experimenting with format strings vulnerabilities. In particular, I have a vulnerable C program like the following one: void test(char *arg) { char buf[256]; snprintf(buf, 250, arg); ...
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22 views

How to open windows on RDP thin client

We use RDP thin clients in our company. Each have an IP address with a stand alone linux OS on it I want to open windows(gvim, xterm, ...) after ssh'ing to another remote server. Though I set DISPLAY ...
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29 views

reroute my traffic to another adapter

My Internet access comes from my ethernet and I want to redirect it to a virtual adapter which is connected to a vpn server. I looked for answers and I'm now aware it has to do with the route rule but ...
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1answer
32 views

Issues with linux mint installation on vmware player

I downloaded the iso image of Linux mint 17.1 cinnamon and then burned it to a dvd.I get this strange message from VMware player. Even when I instead use the iso image itself instead of the dvd,I get ...
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39 views

Finding Where Download is Coming From

How would I determine where a download (or update) from software is coming from where it doesn't give the user a URL? Take for example Google Chrome Web-Based Installer, Origin Updates / Game ...
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0answers
17 views

Plasma 5 login user list

My computer runs on a network configured with LDAP. I recently updated to Kubuntu 16.04 from 14.04, and now I cannot login graphically. On 14.04, the login screen used to show my username and two ...
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1answer
53 views

Redirect keyboard input to unfocused program

While one program is focused (a full screen web browser) I want to pass keyboard input to another unfocused program (an ssh terminal) in Raspbian/Pi3.
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1answer
39 views

Could curl print latency in terms of milliseconds?

Wondering if there is an option for curl to print latency in milliseconds? An option that works on either Linux or Mac OSX would be good.
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1answer
30 views

Import WPA-EAP Wifi config from Mac OS X on Linux

We have a serviced office and the company that provides the Wifi service only gives out a unique username and password and an .EXE file for Windows users to configure the Wifi connection, which is of ...
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0answers
11 views

xrandr outputs only screen, no modes, nothing

AWS GPU Instance with NVIDIA Corporation GK104GL [GRID K520] Following is the xrandr output $ xrandr --display :0 Screen 0: minimum 8 x 8, current 1280 x 1024, maximum 16384 x 16384 No Modes, ...
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1answer
24 views

Problems connecting to my Mac via SSH

I have Mac with remote access enabled. I can easily connect to it via SSH within local network. I have configured 22 port forwarding on my router. But I can't connect to my Mac via SSH by using router'...
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1answer
85 views

Is there a way to limit buffer cache size in linux?

I've got program consuming a lot of memory during I/O operations, which is a side effect of performing loads of them. When I run program using direct_io the memory issue is gone but time it takes for ...
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1answer
19 views

How to 'set -x' for scripts other than my own

I am still dealing with a bug from another question which has gone unanswered because I can't get debugging information. I have scripts running other scripts and I need to see how the tty is getting ...
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0answers
37 views

how the macchanger script actually works

How does the macchanger script in KALI Linux work? I believe that it changes the MAC of the interface in RAM so that the spoofed MAC is attached to the packet until the system is reset. How does the ...
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1answer
43 views

Share mounted samba share in another share

I have a directory that is shared via samba. Now I mount a share on another computer to a directory that is inside this share. The problem is that this mounted share appears as empty directory when ...
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1answer
85 views

Upgrade gcc to gcc-4.9 in RHEL 7

redhat 7 has gcc 4.8.5. I want it to upgrade it to 4.9. For that I've used the below command sudo yum install devtoolset-3-gcc.x86_64 And I got the below response Loaded plugins: amazon-id, rhui-...
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16 views

Typora Mardown Editor on Linux using Wine

I have been trying out markdown editors recently, and I have found that Typora (typora.io) is absolutely amazing. I really want to use this on my Linux laptop (Arch Linux x86_64), however the Linux ...
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24 views

Postfix relay should depend on sender

I have a Linux server with Postfix, and I need to send mail with several different sender addresses. Something like this: If the outgoing mail contains From: xxx@alpha.com, Postfix should use one set ...
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0answers
23 views

Linux Mint 17.3 screen is not automatically locked when I manually lock the screen

My problem is basically as the topic says. I am using GLMatrix screensaver from xscreensaver. I set the delay before locking screen to immediately, lock the computer when inactive to after 1 minute. ...