Questions specifically about Linux, as opposed to Unix-like systems in general, or to questions about a specific distribution or program.

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0
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0answers
21 views

grub rescue, no device found

I'm using the Live CD as my "main-OS" for 2 days, because I can't start Linux Mint, I've tried many solution on the internet, all of them failed for me... It's probably because I have an old SATA HDD ...
2
votes
1answer
30 views

how does hdparm calculate spin-down times?

I have been trying various options with hdparm, like setting the spin-down time to 5 minutes withhdparm -S 60 and setting the APM to 1, but I end up getting a spin-down in less than 5 seconds... How ...
1
vote
1answer
23 views

unable to open luks encrypted device (wrong password)

I'm using CentOS 7 with a luks encrypted root partition. Usually I have to type my password during boot, but sometimes the system doesn't accept it. It reacts as it was wrong, but it isn't. I did not ...
3
votes
0answers
12 views

Discover what is cached by dm-cache

I am using dm-cache successfully for quite a while now. Now I would like to know which files are being currently in the cache. I understand that dm-cache works with blocks, not files, but since there ...
0
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0answers
6 views

Device nodes for an ATSC tuner not created

I'm trying to use an external tuner to tune to ATSC signals. But when I plug in the USB-Tuner I could see only frontend created. $ ls -ld /dev/dvb/adapter*{,/*} drwxr-xr-x 2 root root 60 Dec 5 ...
0
votes
1answer
43 views

Create A Script That Responds To A Password Prompt

I'm writing a shell script that will respond to a prompt. For example, when I execute a file, the executed file will then prompt the user with this: Please enter the password: Then I want the script ...
1
vote
1answer
51 views

How to enable using commands on remote host using ssh without password?

i set up to use ssh between two hosts without password. ssh log in is working fine but execute commands failed with the below erro: **isn't allowed to be executed with process or redirect ...
1
vote
2answers
47 views

Is system call the only way that a user program can intentionally affect the state of a Linux kernel?

I think there are several ways that a user program can intentionally affect the state of a Linux kernel. By invoking a system call; By invoking mmap() and writing the memory that has been mapped to ...
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0answers
39 views

Does one need access to the console to notice bash history was cleared? [closed]

Yesterday one of my VPS with Godaddy failed to come back on-line after a reboot. The server was working but needed a quick restart to clear some memory after running large scripts. Apparently I ...
0
votes
2answers
57 views

Linux for use in a cyber café? [closed]

My friend owns a cyber café and is facing lot of problem with various Windows operating systems. I thought about using Linux Mint or an Ubuntu flavor for the cyber café. I've seen Linux Mint's user ...
0
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0answers
7 views

ZIMBRA 8.5.1 : error: unsupported dictionary type: LMDB

We upgraded the Zimbra from version 8.0.5 to 8.5.1 as in these below steps. su zimbra echo smtp.DOMAIN.com UN:PW>/opt/zimbra/conf/relay_password postmap lmdb:/opt/zimbra/conf/relay_password ...
0
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0answers
18 views

Linux 3.x: Supported platforms

Where do I find an (up-to-date) list of supported CPU architectures of the current 3.x Linux kernel? As far as I understood the ucLinux merged their code into the official kernel. Is there any ...
2
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0answers
43 views

Can the hard drive timeout be disabled in Linux (attempting task abort)

Unfortunately, when a hard drive (usually a virtual drive) is slow, Linux aborts requests to that drive after a timeout, possibly causing data corruption. Last time this happened to me, I had 2 vms ...
0
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0answers
12 views

Installing Lnix on WinRT tablet [closed]

I was given a WinRT tablet. I tried to use it for a while but the hardware quickly became finicky. I've wiped it to Recycle but before I do wondered if I could install Linux on it. The tablet is ARM ...
1
vote
0answers
31 views

Utility to list and modify kernel modules loaded at system startup

How do I list all kernel modules loaded while system startup? Is there a user space utility to list and modify the modules loaded during system startup? I am working on RHEL6 Desktop and RHEL6 ...
-1
votes
0answers
16 views

How to spawn a Reverse Shell TCP on a computer remotely [closed]

I want to know if it's possible to spawn a reverse shell script onto a computer on a local network. I tried looking under the SEtoolkit but it only generates programs that create the backdoor. I want ...
1
vote
1answer
55 views

F2FS vs ext3/ext4

We are using Beaglebone black Based custom board, we are planning to use eMMC in our board. We are in the process of checking different filesystem options, What are the different file system we can ...
3
votes
1answer
46 views

What is the difference between “inode size” and “Bytes per inode”

Below information is taken from man page,I would like to know the difference between bytes-per-inode and Inode-size? -i bytes-per-inode Specify the bytes/inode ratio. mke2fs creates an inode for ...
2
votes
3answers
85 views

Mount same disk to two linux machines - SAN/NAS

I do not know anything from storage and filesystems that's why i have created this question. I want to mount the same disk to two linux machines and both machine must be able to read/write on the ...
6
votes
1answer
148 views

Some basic questions about Linux kernel's security [closed]

I don't know much about Linux kernel, and I have some questions. What is the main purpose of separating kernel memory from user-space memory? To make sure that a user application cannot do anything ...
2
votes
2answers
41 views

Linux sloppy mount

Could anyone describe to me what sloppy mount is? There's two mount points on my server but I have no idea how to erase the sloppy one. I hope some one could explain to me the potential faults or ...
2
votes
0answers
13 views

Error occuring resgiter the Redhat 6.4?

I'm trying to register the Redhat from RHN Registration. This report the bug There was an error while populating the profile This error shouldn't have happened. If you'd like to help us improve this ...
3
votes
2answers
32 views

Video capture device: any chance of getting raw data?

I have a HDMI capture device called Live Gamer Portable (AverMedia C875 USB - 07ca:0875), and it has drivers for Windows and Mac, but not for Linux. As it has Mac support, is it possible to access raw ...
0
votes
0answers
20 views

Xorg mouse input driver

My Xorg.0.log shows the following output: [ 14.509] (II) config/udev: Adding input device Microsoft Microsoft Basic Optical Mouse v2.0 (/dev/input/mouse0) [ 14.509] (II) No input driver ...
1
vote
1answer
15 views

Alpine: work with some e-mails

How can I setup alpine to use more than one mail address? That SMTP Server parameter in config looks like an global. Can someone help me? NOTE: At least for both e-mails on the same server. Thanks.
0
votes
0answers
44 views

How can I resolve the initramfs issue during installation of Ubuntu 14.10 with an ISO file?

My system specs are: HP Probook 4445s, Windows 7 SP1, 64-bit, 4GB RAM, AMD A8-4500 APU I want to have both Windows 7 and Ubuntu on my laptop. I am installing Ubuntu 14.10 from an ISO file. I would ...
1
vote
0answers
18 views

run a certain file (e.g. a .py) when a certain image, .wav or excel file get opened [duplicate]

Recently, me and my friend have purchased a Palm Vein Scanner. the goal was using it in a mini-project as a new door lock system. we are connecting it to a Raspberry Pi to run the software on it. ...
1
vote
1answer
32 views

Transfer speed while copying from Windows to Pi

I am using a raspberry pi with samba as remotely accessible storage in my local network. While copying files from windows to pi I am getting strange transfer speed. It jumps from 200 kB/s and less to ...
0
votes
1answer
9 views

firstboot starts Xorg with wrong command line

After installinx nx server, gnome and setting run level 5 in inittab, nx can't connect to X server, but after killing Xorg it can. Looks like I have to accept the license to get rid of firstboot, but ...
0
votes
1answer
49 views

When I boot Linux, it asks for password, pretends to proceed, but then returns to asking it again

I turned off my computer by pressing a turn off button for a long time. Then I turned it on. Usually it doesn't ask for password, but this time it did. So I tried to enter my password and it seemingly ...
0
votes
0answers
18 views

ST-Ericsson cg2900 driver for gps

I'm using ST-Ericsson's chip cg2900, it contains bluetooth,fm, and gps. it's driver, which is a MFD, is explained on this discussion https://groups.google.com/forum/#!topic/linux.kernel/aD_FGvp8D3U ...
1
vote
1answer
32 views

How to delete a file in QNX4 format when a CF card is mounted as read-only in Linux?

Recently, the DMA device of our lab is broken and the suspected problem is in the CF card which is in QNX4 format. I want to delete a file named 'calforce.dat' and recreate it by calibrating the ...
-1
votes
1answer
30 views

Please help. Login and password [closed]

I don't know anything about Linux. I need your help. My Mom's bf died and some loser addict stole his laptop. I got it back but he installed Linux. There is his user name, then I hit this little icon ...
-2
votes
0answers
14 views

problem in uploading the file on the Linux server in a web application [closed]

I had an web application running on the Linux server. All modules are working properly but one module in which csv file uploading fails every time. But the same code of application is running on the ...
1
vote
1answer
35 views

Number of packets sent and received on an interface

I'm interested in creating a script which prints total number of received packets and sent packets on an interface. The output should be like: interface TX: number RX: number Can anyone help me ...
-3
votes
1answer
32 views

Have a script (on server) download a file on your computer (local machine) [closed]

I am setting up a special kind of script for a project that I am working on. I'd like my script, when executed, to take a file that is on the server and put it on the computer. I have no idea how I ...
0
votes
0answers
21 views

Multicast is not received using Java on Linux

Setup is as follows: host windows machine, 2 VMs with a Host-Only Network adapter and a NAT adapter. Java program on one VM that sends a UDP packet to the following address ...
0
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0answers
42 views

Wireless connection keeps dropping

A little while ago I installed Ubuntu on my tower because I was getting tired of Windows; but it seems that either my internet router hates Linux, or the driver keeps choking on itself, because at ...
0
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0answers
20 views

C code to send simulated Alt-C to another App window using X11 calls and ioctl [migrated]

I am writing a C program to allow me to send simulated keyboard input to another Application's window open on my desktop. I need to be able to find the App window by name and get an id for it, and ...
2
votes
1answer
20 views

Unable to change ulimit setting

I edited /etc/security/limits.conf to have root hard nofile 20000 root soft nofile 10000 And added session required pam_limits.so to /etc/pam.d/common-session and ...
0
votes
1answer
45 views

How can I modify client SSH settings?

I am logged in a system as student. How can I modify client SSH settings so that when I write the following command ssh 123.4.5.67 , SSH client authentificates me as another user?
0
votes
0answers
54 views

SSH randomly stops working, and any other request from network related services

I'm pulling my hair out right now, since I don't know where else to look, what else to do, to find out why the SSH stops working suddenly. The ssh-server is on the same network as the client, but it's ...
0
votes
0answers
41 views

Need to find reason for USB I/O errors [closed]

I have a program written in Python 2.7 and wxPython 2.8 under Mint 13. One of the modules pulls data off a number of USB devices for subsequent analysis. Everything works fine with Dell laptops but ...
0
votes
0answers
59 views

device descriptor read/64, error -71

I have problem with USB ports on MSI WIND laptop. I have FC17 installed and usb printer sometimes not responds. If I replug a printer in USB port - it's working. Tried to change usb cable and printer ...
0
votes
0answers
65 views

writing my first exploit in linux [migrated]

How can I modify the source code in the func( ) so that the address to which the program returns after executing func () is changed in such a manner that the instruction printf("first print\n”) is ...
1
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0answers
43 views

CentOS 7 Crash on boot

Getting this message attempting to boot CentOS 7 BUG: unable to handle kernel NULL pointer dereference at 000000000000009B And then a kernel panic Happens when trying to boot from the OS HDD or ...
0
votes
0answers
15 views

Linux host list virtualbox vrde (guest virtual kvm) clients

I have a GNU/Linux machine running virtualbox with VRDE access. I am looking for a way to count the number of rdesktop connections to an individual guest. Is this possible?
-2
votes
1answer
37 views

Cannot go full screen with Linux Kali on VMware virtual machine

I just get this, not full screen on my bought VMware: What can I do to get this full screen?
1
vote
1answer
31 views

Is there a console command that replicates Alt+[F1..F10] to change terminal?

Hi I'm a Linux noob developing a custom embedded barebones distro. I have console access over serial to my machine. I would like to control what tty my user sees on their framebuffer. Currently the ...
0
votes
1answer
20 views

linux with KDE, disable CTRL+F9 combination key

On my linux (ubuntu) with KDE, when i press CTRL+F9 the system shows all the opened windows as miniatures, allowing me to select one by clicking on it. Unfortunately, the very same key combination is ...