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

learn more… | top users | synonyms

3
votes
2answers
3k views

ulimit & rlimit in Linux, are they the same thing?

I see people use the terms ulimit & rlimit interchangeably, can I say they are referring to the same thing?
0
votes
1answer
23 views

/usr/bin/time cannot execute binary file

I believe I've corrupted the /usr/bin/time executable as when I try to run it, this is the message that shows up: bash: /usr/bin/time: cannot execute binary file It was working till I inadvertently ...
0
votes
2answers
4k views

Setting up hostapd with a iwlwifi device to run a hotspot

I am trying to configure my opensuse 13.1 system to function as a hotspot (on my dell xps13 computer). So I tried setting up hostapd as explained here, but I get an error: hostapd ...
2
votes
1answer
1k views

Ubuntu: wire network is not stable and must restart network-manager periodcally

I don't know why my wire network now is not stable. After a short time of using, maybe 30 minutes, 15 minutes or maybe just 2 minutes, my network is down. When my network is down, I must run this ...
1
vote
3answers
336 views

MCE error: MCA: Internal parity error

I have an unstable machine running Ubuntu 14.04 LTS which passes 9 hours of memtest86. I get these: Hardware event. This is not a software error. MCE 0 CPU 1 BANK 0 TIME 1414735539 Fri Oct 31 ...
0
votes
2answers
2k views

Kali Linux wifi issue

I've just installed a linux Distro (Kali) and this is the only place I know to come for help with it. I installed Kali on my Compaq laptop, as it's the only laptop I have and won't use my windows ...
0
votes
0answers
17 views

Linux VNC server that adapts to noVNC client's size?

I want to allow clients to connect to a newly created VNC session on a headless Linux server using NoVNC (Web-based VNC client). NoVNC supports a great variety of clients, which include a great ...
0
votes
0answers
19 views

why do we have same chains in different tables of “iptables firewall” in linux?

why do we have same chains in different tables of "iptables firewall"? Like for example: we have "output" chain in filter table, nat table & mangle table.
1
vote
1answer
29 views

Will most Distros run on an old pentium d?

I am starting out in Linux for my first time and i'm wanting to know if the old Pentium D w/ p35 chipset will be compatible for most distros. It will be my "training" computer as I learn Linux. I am ...
5
votes
1answer
1k views

What is SSTP vpn server and how can I run one?

I've read a couple of L2TP and PPTP tutorials on the net and there are just dozens of "running PPTP/L2TP on Linux" guides available out there and I successfully made packages like open-swan or pptpd ...
2
votes
3answers
28 views

Rename multiple files to their suffixes

I need a way to rename a couple of files containing spaces. I have: >ls Garbage Foo1.txt Garbage Foo2.txt Garbage Foo3.txt Garbage Foo4.txt ... And I need: Foo1.txt Foo2.txt Foo3.txt Foo4.txt ...
8
votes
2answers
981 views

Creating formatted partition from nothing

I need to create filesystem with just one partition from nothing (/dev/zero). I tried this sequence of commands: dd if=/dev/zero of=mountedImage.img bs=512 count=131072 fdisk mountedImage.img n ...
3
votes
0answers
28 views

how to see original and --bind mountpoints

Lest say I mount a usb drive to /mnt and next I run this... mount --bind /mnt /tmp/test.d It's a successful bind, but now when I run lsblk only the bind point shows. How can I get all bound and ...
0
votes
0answers
19 views

bumblebeed unable to start

I am unable to start bumblebeed on my notebook with a GT 745M running Debian. When I try to start the service I get no response before the command terminates and when I try to use primusrun/optirun ...
1
vote
0answers
16 views

Start TCP-based service on demand, and stop it after connection is closed

A server needs to provide several huge (consuming lots of RAM) tcp-based services. What I want to achieve is, that they are started on-demand (lazy), and stopped after either the connection is closed ...
1
vote
1answer
39 views

yum error while updating or installing

I am running a centos 6.6 distro and I am facing an issue with yum. While updating or installing any packages I get some errors, for example yum install nmap Loaded plugins: fastestmirror, ...
3
votes
2answers
665 views

Lost window title bars and everything after selecting bad window theme in Linux Mint

I've selected a window theme from the "Advanced Settings" in Linux Mint 12 which seems to be corrupted and I've lost everything on my desktop. I can't start any applications but I can open the ...
2
votes
1answer
5k views

How to dual boot linux and windows 8.1?

I have a computer running Windows 8.1 and I would love to dual boot it with Linux. I am very new to Linux. I have run it in a virtual machine a few times before, but virtual machines are slow. I want ...
1
vote
1answer
644 views

Startx results in a black screen

I recently wanted to solve a problem with using a second monitor from my laptop that is running debian (jessie) but because I lack knowledge things didn't go as planned. Now I am getting booted into ...
-1
votes
0answers
30 views

Kali Linux : Access on screen keyboard while on log in screen

My keyboard is not working.I have Kali Linux installed on my system.My mouse is working properly and question is there any way to access the on-screen keyboard so that i can log in to my system from ...
0
votes
1answer
23 views

How do I limit inbound and outbound bandwidth to and from a specific host on CentOS

As the title says, I am trying to limit inbound and outbound bandwidth to and from a specific host on CentOS. The reason is that this host consistently uses a large amount of bandwidth and this needs ...
1
vote
1answer
1k views

GNU/Linux: “device mapper: create ioctl failed” “device or resource busy”

I can't mount my encrypted devices anymore. The error is: device mapper: create ioctl failed device or resource busy This error arises both with two different programs to access TrueCrypt ...
4
votes
1answer
118 views

Difference between output of dmesg and content of /var/log/dmesg?

I found the output of dmesg and content of /var/log/dmesg are different. Then what differences are between their purposes?
0
votes
1answer
18 views

Setting up setuid VS giving execute permissions

I am trying to understand how setuid works. So far my understanding is that a process which executes the file on which the setuid is applied is run as if the owner of the file executed it irrespective ...
0
votes
1answer
18 views

Convert Grub2 entry to Syslinux

I have been trying to do it for hours now, but so far I was unable to. I have a USB stick with grub4dos on sda1 (vfat), /boot syslinux on sda3 (ext2) and root on sda2 (btrfs). ext2 with syslinux is ...
-1
votes
1answer
28 views

Transfer executable file from Linux to mac

I have a file that is sitting on my server, this file is an executable file on the server. When I just use SCP to copy it down to my desktop which is a mac i get bash - ./fig up cannot execute binary ...
1
vote
2answers
735 views

Linux guest VM on mac host - Keyboard

I use a Mac as a development box, but am slowly transitioning to Linux. So I am spending the majority of my time in the Linux guest VM while working. But I still spend a fair amount of time in Mac ...
2
votes
1answer
514 views

ElementaryOS / Specific layout

For switching layouts between three different languages I use Ctrl+Shift but this approach very slowly. I want to use specific combination for the specific layout. Like: English -> Ctrl+1 Ukraine ...
2
votes
2answers
3k views

Issues in XRDP installation on Cent OS 6.5

I already went through the similar issue tracked in Installing XRDP on Cent OS 6.5, however it haven't helped me to fix. I am using MAC and trying to install XRDP in CentOS release 6.5 (64 bit). So ...
0
votes
1answer
19 views

Linux 'w' command, get IDLE time in seconds

I need to get idle time of all users in seconds (not minutes or days), how do i go about doing it ? This command lists the idle times of all connected users : w | awk '{if (NR!=1) {print $1,$5 }}' ...
3
votes
2answers
228 views
-1
votes
1answer
1k views

Unable to connect FTP: 530 Login incorrect

My account has been created on a LINUX server and I am able to login through putty. I have changed my password also. But, to move a file there, I tried to connect that server through FTP client. I ...
17
votes
2answers
74k views

How can get a list of all scheduled cron jobs on my machine?

My sysadmin has set up a bunch of cron jobs on my machine. I'd like to know exactly what is scheduled for what time. How can I get that list?
3
votes
1answer
72 views

What does the 'seclabel' mount option do?

I use Nagios and check_mk to monitor some servers. I get several warnings about the mount options of a couple of servers. The message is: 'OK - missing: seclabel'. I can't find documentation about ...
0
votes
0answers
13 views

Snapshotting / Saving cloud foundry single node install for future use.

I have set up cloudfoundry on virtualbox using bosh-lite and vagrant. I would like to save the state of the machine for future use either on my own machine or for others to use and experiment with as ...
32
votes
10answers
11k views

A tool for automatically applying RandR configuration when external display is plugged in

is there a tool which enables one to: remember current RandR configuration (position, orientation, resolution etc) on per-monitor basis, automatically apply last known good configuration as soon as ...
3
votes
3answers
206 views

“ext4_lookup: deleted inode referenced” error in /var/log/messages

I checked my /var/log/messages log file, on every 2 secs interval there is some log getting added.. Mar 20 11:42:30 localhost kernel: EXT4-fs error (device dm-0): ext4_lookup: deleted inode ...
0
votes
2answers
808 views

Linux Permissions vsftpd

I have mybb installed and running in /var/www/forums. I have two users part of the www group, logan and www-data. I have the recursive permissions of forums directory set to: chmod -R 755 forums ...
0
votes
1answer
21 views

Rename and copy/move sets of similar named directories to another location

For a set of directories with similar names at different location, /foldX/dirA with sub-directories aa1 aa2 aa3 aa4 aa5 /foldZ/dirA with sub-directories aa1 aa2 aa3 /foldY/dirA with ...
-1
votes
0answers
41 views

What exactly is Ctrl + s? [duplicate]

In my terminal, if I press Ctrl+S it 'freezes' output, which can then be resumed with Ctrl+Q. What exactly happens here? What library/program supplies this functionality or at least says what ...
1
vote
1answer
309 views

How to install an Intel binary file on ARM?

I am trying to install a binary file, and I get the output as "Cannot install binary". When I did file .bin, the output is: c64plus-imglib_2_02_00_00_Linux-x86_Setup.bin: ELF 32-bit LSB executable, ...
0
votes
1answer
45 views

systemd timer every X days at 04:00

I have been reading on OnCalendar= Sadly, I found no info on how to schedule an event on a day other way than defining a day of the week, which would make it run every week at the rarest. I need ...
0
votes
0answers
12 views

POE Connection Failure

I have 2 POE ports which are on different NICs. When I connect them together the ports' Ethernet does not come up. In other words, the associated "port status" register of those ports should turn to ...
4
votes
2answers
994 views

Cannot execute binary in NixOS - No such file or directory

I tried to install the current oracle jre on a VM running NixOS. Now the following happens: [michas@cc:~]$ tar xvzf jre-7u40-linux-x64.tar.gz |grep bin/java jre1.7.0_40/bin/javaws ...
0
votes
2answers
28 views

Install rpm file from a server

I understand how to install an rpm from a given url. Example: RUN yum -y install http://rpms.famillecollet.com/enterprise/remi-release-6.rpm So that is the easy part. My question is, how do I do the ...
1
vote
1answer
2k views

Dual-boot Ubuntu cannot access the Windows drive that it was installed on with wubi

I had Widonws with two drives C: and D:. In the drive C:, I have my Windows. In the drive D:, I had my all other files and data. I installed Ubuntu in the drive D:, without deleting any data from it. ...
1
vote
1answer
41 views

How to install grub on a new drive?

I have a virtual box running with CentOS, I am attaching new disk to existing centos VM and trying to install grub on this newly attached virtual disk. Later I will bring-up a second VM with newly ...
2
votes
2answers
4k views

No rule to make target `include/config/auto.conf', needed by `include/config/kernel.release'. Stop

I am working on petalinux, a linux port for Xilinx FPGAs called Zynq. The tool that I am using is petalinux-config. This opens a GUI where I can select various options, such as compress kernel, ...
0
votes
1answer
36 views

Mount permissions

I want to do this: Mount a network folder. Read files from that folder. I'm doing something like: mount //10.19.6.40/folder/ /mnt/folder/ -o ...
0
votes
1answer
24 views

How can I check if the adobe flash plugins is correctly installed in Mint 17.1?

I know that Linux Mint has the adobe flash plugin pre-installed, but I tried to update that and I think I made a mess, since the videos on youtube.com, and more generally, on the internet, are ...