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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11
votes
1answer
488 views

Why does Linux use SCSI drivers for non-SCSI devices? [duplicate]

Looking at what block device commands like lsblk or blkid return it seems that linux HDD support SCSI drivers regardless of the type of the devices, like a USB flash driver that is presented as ...
1
vote
1answer
22 views

Why autoconf.h is not copied automatically to its place?

I'm working on a clean Debian 7.7 install. After the install everything was working fine except the webcam in Iceweasel browser. After reading a lot I found that the best solution is to install ...
0
votes
0answers
32 views

Linux Kernel Panic and Problem with boot

I have installed CentOS 6.4 on VmWare Workstation (Win 8 as Host OS). I worked with it for several days, but suddenly when I rebooted it, it did not boot properly and on stopped with this error : ...
0
votes
0answers
28 views

intel_agp kernel module not found

I trying to use intel embedded HD 4400 graphics. As best as I know, it's need to load i915 kernel module (and the kernel module loader also try to load it) without success because it's depends from ...
2
votes
0answers
59 views

Is Traffic control inside namespace on ports created by OpenvSwitch supported?

I am trying to limit the bandwidth of an interface inside a namespace using tc without much success. Seems it's not supported according to ...
0
votes
1answer
38 views

installed programs won't appear on linux lite

I've been struggling to install any program on linux lite. After I install them with Synaptic, the files of the installed program are there, but they don't appear anywhere in the dash (searching in ...
1
vote
0answers
51 views

Fork / Cannot allocate memory

I have a 64-bit server running linux 3.x that reports "bash: fork: cannot allocate memory". This server has plenty of RAM (64G) and swap (128G) and I cannot see a particular process being the culript ...
2
votes
1answer
31 views

Set group ownership on FTP upload via an ACL

I am interested in setting an ACL which will chown all the files I upload through FTP to the www-data group. However, after performing chown -R user:www-data /var/www/website.com/public_html/ ...
1
vote
2answers
78 views

`nice` not really helping on Linux

I am a regular user on a remote Debian installation (not an administrator). I run there a special-purpose network server which is used very extensively. The server produces daily logs which are quite ...
-1
votes
0answers
25 views

How to run a script when install a rpm package and answer the installation questions

I will like to know how to install the RPM and answer the installation question automatically if is possible. any ideas.
0
votes
0answers
16 views

how to change vsftpd user home directory to another machine directory with another os?

I have a ftp server(vsftpd) on linux distro and i want to change root directory of specific user to another directory, this directory lived on another machine with windows server on os, Is this ...
1
vote
1answer
62 views

install with BTRFS: subvolume/partition scheme?

I'm fairly new to both GNU/Linux and btrfs, but I've decided I want to make my next computer (a desktop with one HDD) use Linux with btrfs as the filesystem. However, I've seen some advice online that ...
0
votes
0answers
37 views

linux + cant installed the package GNOME Desktop Environment on linux red-hat

I have been installed the package GNOME Desktop Environment on my red-hat machine version 6.4 in the end of the installation I get the error about missing RPM- GPG-KEY-oracle directory !!! ...
1
vote
0answers
61 views

Creating ISO Bootable Image from a CentOS (Linux) system

I have a Linux machine (CentOS 5.8) on which I have installed multiple applications and tools (with yum and few others after compiling the source code) on it. As I have spent considerable time in ...
1
vote
2answers
31 views

Bind Mounting across different file systems

Does the command mount -o bind allow mounting a folder from a different file system (vfat, ntfs) to a folder in Linux native partition?
0
votes
0answers
29 views

open Mysql connection for long time to execute queries in block

I am writing one script which execute bunch of queries in block. here block means version number, each version have different different queries. I write two shell script. 1 version.sh version.sh ...
1
vote
1answer
21 views

Controlling ftp access with vsftpd

I'll preface this with the fact that I'm a bit of a newb with linux and especially with vsftpd. However, I had it set up such that I was able to upload files to a VPS I set up. The only problem is ...
0
votes
1answer
11 views

Different DB Package Installation Calls

I've read/seen various DB installation tutorials and one thing often perplexes me... sometimes I see people install both mysqldb & mysqldb-server, or only one or the other. My question is: are ...
0
votes
0answers
9 views

Deleting qlogin job, cannot find job number to qdel it

I used qlogin to work in python on a computer, and I took up about 150GB of working RAM. I closed the terminal, rather than qdel the job number, and now the RAM is still shown as being used and I ...
0
votes
1answer
214 views

Upgrading centOS 6.6 to 7

I have recently upgraded centOS 6.6 to 7. It seemingly boots up, but it can not open the log in page, Actually the systems is frozen here. Does anybody have similar experience? If so, it would be ...
0
votes
0answers
38 views

Do high DPI screens play nicely with tiling wm's?

I'm currently on a 15' laptop which has a moderate resolution (1920 x 1080). The other day, I spent some time with a friend who owned a Macbook Pro Retina. Just looking at the screen, made my eyes ...
1
vote
1answer
25 views

How to carry a string over from one chain to another in iptables?

Here's what I'd like to do. In my rule file (which I use with iptables-restore) I have (with limits removed): -4 -A LOGDROP -j LOG --log-prefix "ipt:4:drop " -6 -A LOGDROP -j LOG --log-prefix ...
6
votes
2answers
52 views

Linux graphical password dialog trick security

When we run a command by sudo, the password is asked [sudo] password for user If the sudo is not typed the password should not be asked. If asked, I would assume it as a fraud by the application. ...
1
vote
1answer
97 views

Why cannot we kill a zombie? [duplicate]

I am editing this question since it was marked duplicate as another question about how to kill a zombie process. I am not looking for an answer to how to kill a zombie process. I do not have zombies ...
2
votes
1answer
162 views

Can an X video driver be restarted/reinitialized without loosing the session?

Have been experiencing problems with my laptop display usually brought on by interacting with graphics images in chromium web browser. When it happens the display goes haywire as if the horizontal and ...
2
votes
2answers
29 views

Why does uninstalling sendmail install exim, and uninstalling exim installs xmail?

I just set up a VPS with Debian 7 x64, and removed Sendmail along with some other programs. When it removed Sendmail, it also installed Exim. When I removed Exim, it installed xmail. Is there any ...
1
vote
0answers
68 views

ping localhost sometimes fails with sendmsg: Operation not permitted

I have a problem with network adapter (i think) , look I trying to ping my self and got a error sometimes, how this can be ? First time in my life i see this. # ping 127.0.0.1 PING 127.0.0.1 ...
0
votes
0answers
61 views

Clone monitor on HDMI without changing laptop display resolution

My laptop's display has native resolution of 1366x768, and I connect it to my TV which has 1920x1080i. My problem is that the only supported resolution for cloning is 640x480, which happens to be the ...
0
votes
1answer
43 views

Linux on HP Laptop

I have an HP Pavillion p027 TX Notebook PC with the following hardware: Intel core i3 4030@1.90 GHZ and 4 GB RAM NVIDIA GEFORCE 830 M Broadcom 43142 Bluetooth Broadcom 43142 b/g/n wifi adapter ...
0
votes
1answer
41 views

rebuilding my grub2 menu based on my one installed kernel

tl;dr : I have one kernel now on fedora and want that ONLY with Windows 8 to show up on my boot menu. I've been tweaking and geeking with linux kernels. Then I wanted to clean up my boot menu. So ...
0
votes
1answer
33 views

Selectively record commands and output from terminal to MySQL table

In some situations I would like to store complete commands and output from terminal sessions in a MySQL database. Ideally I would just copy the command and output from the terminal to my clipboard ...
0
votes
2answers
58 views

Where to locate resolv.conf file in CentOS 7

I know that "/etc/resolv.conf" is auto generated file by "/etc/resolvconf/resolv.conf.d/head" when reboot Ubuntu 14.04. It's ok But where i can locate same "/etc/resolvconf/resolv.conf.d/head" file ...
1
vote
0answers
21 views

Investigating Active MemInfo

I am seeing high Active usage when I do a cat /proc/meminfo : MemTotal: 65965328 kB MemFree: 51640992 kB Buffers: 1050332 kB Cached: 8516112 kB SwapCached: 0 kB Active: 11512732 kB Inactive: 1878028 ...
3
votes
0answers
58 views

Linux - On boot do push-button-connect to strongest wireless

I'm trying to configure linux (in this case CentOS) to automatically connect to the nearest WiFi via "push-button-connect". This micro computer has no keyboard or display, so the goal is to hit the ...
1
vote
0answers
23 views

firewall-cmd forward rules for interface with multiple ips

I'm looking for a way with firewall-cmd or another command to do the following. An incoming public interface has multiple ip addresses bound to it. How can I forward ports only for one of the ip ...
2
votes
3answers
74 views

How can I run Linux shell scripts which needs root privilege from a web page

I'm trying to run a linux shell script which requires root privilege via Apache, Is there any way to run scripts which needs root privilege, rather than setting suid and sudo privilege to Apache. ...
1
vote
0answers
18 views

Linux initrd enviroment setup & help

I'm looking for help in getting a basic initrd environment up and running, my goal is to enhance my knowladge on how to create a basic linux environment. Ideally I would like to move into Embedded ...
3
votes
2answers
59 views

Remap keyboard on the Linux console

I'm using Debian and I want to remap my keyboard because it has some problem. I googled and found xmodmap. But it doesn't work in graphicless mode, like tty1.
14
votes
6answers
496 views

Showing only “interesting” mount points / filtering non interesting types

I used mount to show mounted drives, I don't want to see the not so interesting ones (i.e. non-physical). So I used to have a script mnt that did: mount | grep -Ev 'type (proc|sysfs|tmpfs|devpts) ' ...
5
votes
1answer
73 views

Why file-nr and lsof count on open files differs?

I am running into a problem all of a sudden; all my applications and the server was running fine and all of a sudden I see the number of open files shoot up. I am checking it with this command: cat ...
1
vote
0answers
33 views

Why doesn't the owning group get the executable bit? [duplicate]

Playing with ACL's: [root@rex web]# pwd /media/web [root@rex web]# ll -d drwxr-xr-x. 2 root root 4096 Jan 1 14:31 . [root@rex web]# setfacl -m d:g::rwx . [root@rex web]# setfacl -m g::rwx . ...
-1
votes
0answers
43 views

Is the Linux/Ubuntu supports Adobe Dreamweaver CS6?

I using Ubuntu Mate.Is that support Dreamweaver, or else suggest me an IDE equal to Dreamweaver.
0
votes
0answers
36 views

What is the command for finding some counters in linux?

I am developing a Java swing application to find the Linux performance counter values. Till now I got command for System - vmstat Memory - cat/proc/meminfo Disk - iostat -dxm /dev/sda Now I want to ...
2
votes
0answers
25 views

Make mouse side buttons trigger virtual keys

I have a mouse with two side buttons. I've posted the output from xev and evtest for both buttons: xev EnterNotify event, serial 37, synthetic NO, window 0x4600001, root 0x306, subw 0x0, time ...
1
vote
1answer
33 views

Observing ping replies under DNAT

I'm confused while trying to understand the DNAT mechanism under below circumstance. My understanding: DNAT = Destination Network Address Translation: Functionality which translates the destination ...
0
votes
0answers
15 views

capture tmux screen and process with shell command

is there a way to capture text currently on the screen of a tmux session and pipe it into a shell command then display the output? I was hoping to use something like this with Oracles sqlplus to do ...
1
vote
0answers
72 views

usbfs did not claim interface before use

Using Sunnybeamtool to read out sunnybeam over Rasperry Pi USB port. I get lot of errors in dmesg which doesn't affect the working (apparently) program is written in C. Messages: [30563.867756] usb ...
0
votes
0answers
19 views

How to recompile ImageMagick to detect the DELEGATES

I am using Imagemagick(6.4.3.6-7.18.x86_64) in SLES11 SP2 Using it like bellow.. import -window $wid $jpg and getting this error import: DelegateLibrarySupportNotBuiltIn `' (X11) @ ...
0
votes
2answers
31 views

Decided to install ArchLinux, but faced a problem with Windows

I decided to install ArchLinux and the tutorial I found wanted to create the partitions in advance. So I made the ext4 and linux-swap partitions and saw in gParted my old friends - the Windows ...
2
votes
0answers
61 views

TCP, UDP, etc. works, HTTP(S) does not

I have been trying to set up Debian Jessie on an old Dell Inspiron 300m. Right now the problem I have is, the ethernet connection only works partially. ICMP works. I can ping IPs and FQDNs. UDP ...