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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1answer
28 views

How to display a Image on a remote linux machine through ssh

I have two computers, one running windows(WIN7) and the other running linux(SUSe). I'm wondering if there is a way to ssh(Putty) into the linux machine and run a command to have a image display on the ...
0
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1answer
30 views

Can I use a login manager to choose different window managers?

I'm working towards an Arch install with a tiling window manager (probably i3) but was wondering whether it's possible to use a login manager and have the Gnome 3 desktop available as a fallback. So ...
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0answers
28 views

Unable to mount hard disk partition in ubuntu 12.04

I accidentally unmounted my hard disk partition, and then clicked on "edit partition" to further break the partition. Now there's no option to mount and fdisk -l says: Disk /dev/sda: 160.0 GB, ...
1
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1answer
36 views

List all regular files containing (in their name, directory or their content) a specific (sub)string

Like in the title, and also I want to print the number of the line in each (text) file where the substring occurs. So far I have: find /sys | grep "filesystem" But it appears to only look at the ...
1
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1answer
56 views

ifconfig not showing ip address under eth0

Usually when I connect my raspberry pi to my laptop using an ethernet cable, the ifconfig command in each computer would show the ipaddress of each computer under eth0. I recently got a new raspberry ...
0
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1answer
19 views

How to redirect all request to specific ip address in ubuntu

How to redirect all request to specific ip address in linux I have tried following command but its not working sudo iptables -t nat -A PREROUTING -d 0/0 -p tcp --dport 80 -j DNAT --to-destination ...
0
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1answer
31 views

Installation of Linux mint from cd makes it stuck on splash screen.

I am installing Linux mint Rebecca cinnamon onto a Windows XP Professional computer. I burned the ISO file using windows burner (Windows XP Professional) The menu loads correctly. Let it boot ...
1
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0answers
28 views

redirect all wifi user to specific page in debian

How can I forward all incoming traffic (http request on port 80 & 443) to a fixed IP address? I am using raspberry Pi B+ model, tp-link WiFi adapter. I have tried, among others, these two ...
1
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0answers
38 views

Linux Mint 17.1 shutdown option doesn't work

Sometimes when I use the shutdown option in cinnamon the system closes some of the running programs and then just sits on the desktop until I tell it to shutdown again. The shutdown and poweroff ...
3
votes
3answers
159 views

How do I determine a file's original location?

I used mv to move all files matching a specific pattern into a folder. How can I determine (after moving files) where a specific file came from? Is there any chance of determining the location after ...
0
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0answers
59 views

CentOS 7: Can't connect wifi using wpa_supplicant

I recently got a new wireless card, specifically Intel Dual Band Wireless-AC 7260 WiFi Bluetooth Half Mini Card. Previously I had been connecting with ethernet so this machine has never been on the ...
0
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1answer
34 views

Is there classification of Linux Server and Desktop? [closed]

In Windows world there is a broad classification: Server and Desktop edition. I do see such variations in Linux world too (Fedora Server, Desktop for example). Is this classification a mere marketing ...
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0answers
26 views

Linux distros unresponsive/unstable on my ASUS X550LN laptop

So I've had this problem ever since I got my laptop last year, it's an ASUS X550LN (Intel i7 4500, 8Gb RAM, Nvidia GT 840M). I'm originally running Win 8.1 64bit and I wouldn't mind dual booting a ...
0
votes
1answer
19 views

Centos 6.4 and UEFI

I have centos 6.4 64. In /boot/efi/EFI/redhat I have grub.efi file (about 251Kb). However, when I execute efibootmgr I get Fatal: Couldn't open either sysfs or procfs directories for accessing ...
0
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0answers
30 views

Permission to execute denied for every file in /tmp: [duplicate]

When I try to execute any program from the /tmp directory, it shows me /tmp/file_name: Permission denied. The same error is shown when I simply enter /tmp. The file system for /tmp is ramfs. I've ...
1
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2answers
47 views

xsession error: cannot log in after changing environment variable

I tried setting a new environment variable (I use linux mint 17). After restarting, I couldn't log back in. It says: Your Session only lasted less thant 10 Seconds. If you have not logged out ...
2
votes
1answer
43 views

Close the neccessary Ports [duplicate]

I am using Linux Mint and I am newbie. Someone is trying to access my computer via my MAC Address and open port. I have some questions: I know that there are different type of port like TCP and UDP. ...
1
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1answer
179 views

What does 'wine: Bad EXE format for Z:\m\Desktop\PortForward Network Utilities.desktop' mean?

Installed wine on Debian to run a Windows exe - specifically the PortForward Network Utilities bundle: http://portforward.com/help/setup_static_ip_address.htm ). Input: wine '/m/PortForward ...
1
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0answers
33 views

error: cant't find command linux when booting system

I need some help with a problem when booting. Recently I've installed CentOS 7 on my pc, previously I had debian 7 and manjaro installed. When I installed manjaro I overwrote the bootloader of debian ...
2
votes
3answers
83 views

How to search the whole manual pages on Linux?

Sometimes I need to look up certain words through all the manual pages. I am aware of apropos, but if I understand its manual right, it restricts search to the descriptions only. Each manual page ...
0
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0answers
35 views

haproxy removing mod_expires set by apache

I've haproxy server which is routing requests to different web service instance based on rules. The web service instances have apache running at port 80. Now, I'm trying to set some expiry header by ...
0
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0answers
12 views

Installed Windows 8.1 not Booting from Internal HDD

I have Windows 8.1 and Linux installed on my internal HDD. Windows is installed first, it worked fine and later I installed Linux through live USB stick. After restarting nothing happened...my ...
1
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1answer
17 views

Query OS for hardware characteristics of wireless adapters

I have a raspberry pi with 2 wireless adapters connected to it - one has an antenna. http://www.modmypi.com/raspberry-pi/accessories/wifi-dongles/wifi-dongle-ultra-long-range-high-gain-w-5dbi-antenna ...
0
votes
0answers
31 views

Error: version `GLIBC_2.14' not found

How do I run a program that was compiled against glibc 2.14 on an old system? I'm unable to update anything. Can I download newest glibc and somehow have the program use it instead of the installed ...
0
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0answers
12 views

Starting Kdump: FAILED

I am unable to start kdump on my machine. It is prompting Starting Kdump: FAILED. I have edited the /etc/grub.conf file and provide 1024M to crashkernel. I have also provided the path to where the ...
2
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1answer
18 views

Can one physical disk provide space for several volume groups?

Can one physical disk provide space for several volume groups? Or one disk can have only one volume group in the Linux LVM? Can we use one disk in several VG's?
2
votes
1answer
167 views

CPU speed and cat /proc/cpuinfo

I use centos 6.4 64. I have old proc - CPU AMD Phenom II X4 810 (HDX810W) 2.6 GHz. However, when I execute the command cat /proc/cpuinfo I get the following: processor : 0 vendor_id : ...
1
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0answers
30 views

Absolute path in rsync dry-run statistics

I have executed following command in order to get the list of files that would be transferred to remote server if rsync is executed: rsync -avzm --stats --safe-links --ignore-existing --dry-run ...
0
votes
0answers
86 views

iperf3 on GNU/Linux -s -w xxxK not working

I've compiled iperf3 on an AWS GNU/Linux box and it works with just the -s, but not with -w xxxK to increase the TCP window. I've only worked with iperf2 before. Am I missing something?
1
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1answer
57 views

Restricting / disabling linux disk buffering in a virtual machine

Is there an intelligent way how to restrict buffering/caching in a Linux system and to make it writing on disk more or less continuously? I am asking because I am running several Linux virtual ...
0
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0answers
6 views

Is that safe to use kfifo (not a _spinlock flavour) in fiq/nmi handlers? [migrated]

Basically need to pass variable-size records to and from FIQ handler (ARM platform). During any get/put operation on kfifo (on the user-space/kernel side only) I am going to disable all IRQs and ...
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0answers
16 views

You don't have permission to access /dokuwiki on this server

There is a dokuwiki installed in a server that works fine before. One day the IP of this server is changed. When I access dokuwiki with new IP, the browser states "You don't have permission to access ...
1
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0answers
16 views

What does ipq_ctl do?

I'm in the process of writing some rust bindings to libipq, and I came across an undocumented function in libipq.h: int ipq_ctl(const struct ipq_handle *h, int request, ...);. However, this doesn't ...
1
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0answers
46 views

How do I configure SSHd to require 2 (or more) passwords to log in

I'm asking because I want to setup a server that cannot be administered by any single admin, not without the permission (and oversight) of one other authorized admin (there can be many). Since there ...
1
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1answer
25 views

linux nat different rules

eth0 (192.168.1.0/24) --> wan eth2 (192.168.10.0/24) --> lan0 I use these rules to enable NAT on my linux gateway: iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE iptables -A FORWARD -i ...
1
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0answers
47 views

How do I view multiple users groups using sssd?

SETUP OS = RHEL 6.4 Workstation System is part of an LDAP domain and was originally configured to authenticate using nscd. All recommended SSSD packages have been installed. ...
4
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2answers
36 views

Can I mount a case-insensitive tmpfs/ramfs?

I would like to utilize the performance of tmpfs/ramfs for some file operations, but the programs/processes that use these files assume a case-insensitive file system. I cannot find any documentation ...
1
vote
1answer
28 views

How to find bandwidth usage/bytes transmitted/received within a certain time frame

I'm looking for a way to get numbers on bandwidth usage of an eth port. But I need to filter the results to only show me numbers for the last 24 hours. Or any time period in hours or minutes. Just ...
0
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0answers
17 views

how to use postfix alias for sending email

I am not this question has been asked or not, I have postfix running with MySQL and recently i have created "support@example.com" alias email to multiple folks get email, just like distribution list. ...
2
votes
2answers
107 views

how to grep for specific time period in a log

We work with log files that have line entries that start with a date/time format such as this: 20150408 13:29:28 <rest of text> What would I need to do in order to grep for a date range? Say ...
0
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0answers
11 views

What's wrong with my Arch linux grub bootup? [closed]

So ever since I did a fresh install of Arch Linux, every time it boots up and I select the Grub option it says "A start job is running for /dev/drive/" and shortly after it says timed out and ...
1
vote
1answer
29 views

How can I set permissions on a windows share from linux client

I want to write a script to set permissions on a windows share from linux client. I know that I can use smbclient, cifs or smbfs to mount windows share from linux. But I have no idea how to set ...
1
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0answers
31 views

Route wireless LAN through OpenVPN

I am trying to set up my home server to act as an OpenVPN gateway so I can connect to my VPN from any device without installing special software of them. My server is running Ubuntu 14.04. The host ...
0
votes
1answer
43 views

Set home directory of a user to root?

I would like to set the home directory for ftpuser to root. That's my command: # adduser ftproot -shell /bin/false -home /var/www What is the directory term for root?
2
votes
0answers
280 views

Can I make the boot even more verbose than loglevel=7 using kernel parameters?

I have an error when booting on a machine, my machine is stuck with the error message: Booting a command list. I can see this message when I add loglevel=7to the kernel parameters via grub boot ...
0
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2answers
17 views

non-breaking space sometimes appears in Geany (my standard text editor)

I use Geany for all my coding, in my linux Mint-MATE install. Occasionally, i have a problem where a non-breaking space (char code 194) is present instead of a normal space character (32). This just ...
1
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0answers
16 views

How to route vpn traffic over hostapd-raspberry pi

I have a raspberry pi running hostapd and I am able to connect my laptop as a wifi client to the raspberry bi wifi router. The problem is with the vpn traffic, I cant connect to my office vpn with ...
1
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0answers
31 views

Loud persistent fan on Linux Mint 17 with discrete graphics card

I've been running Linux Mint 17 for the last half year with no fan problems, but last week the laptop fan turned on and hasn't stopped since. I hadn't messed around with bumblebee or nvidia drivers ...
0
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0answers
13 views

Increase multipathed filesystem journaling threads?

We have some hardware which is utilizing multipath to speak to backend storage. A situation has been observed which some are attributing to too few journaling threads being allocated by the kernel. ...
2
votes
1answer
17 views

Mount iscsi drive at boot - system halts

I am running Oracle Linux 7 (CentOS/RH) in a Virtual Box VM on a Mac with OS X 10.10. I have a Synology Diskstation serving as an iscsi target. I have successfully connected to the Synology, ...