Questions specifically about Linux but not specific to a particular distribution. If the question could apply to any Unix-like system, specify your Linux distribution in the body of your question but do not use the /linux tag.

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2
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0answers
143 views

Weird mount behaviour

I have a weird thing happening and I can't explain. first take a look at the attached picture. As you can see I have a CentOS based AMS-ASPERA01 server in the DMZ, and I have 6 machines in our ...
2
votes
0answers
46 views

VPN tunnel to two services on two servers?

I've got 2 CentOS 6.5 servers, each running one service: server A: 10.140.54.1/27 running service MySQL port 3306 server B: 10.140.54.2/27 running service httpd port 443 Server B's httpd service ...
2
votes
0answers
427 views

How do I get ata-style IDs in /dev/disk/by-id to work for USB disks?

I have USB drive dock that I'm plugging SATA drives into. The way they show up in /dev/disk/by-id seems to be dependent on whether the drive has a partition table (usb if not, ata if yes). This makes ...
2
votes
0answers
118 views

How do I run webm video file in firefox using HTML5 on linux?

I am using apache server on linux and want to run a .webm video file. I have .webm video file which i am trying to run in firefox (V 12.0) using HTML5 but the browser is showing as "no video with ...
2
votes
0answers
45 views

IO throughput lower when only a single process using the disk?

I am running a busy cacti server on centos and sometimes the rrdtool process is painfully slow when writing to disk, in HTOP the IO Column would display something between 100-300. I a polling cycle ...
2
votes
0answers
150 views

Synaptics touchpad LED support

How to enable support the LED in Synaptics touchpads? I'm using Debian Jessie and xserver-xorg-input-synaptics ver. 1.8.1-1. I found patches by Takashi Iwai from SUSE for LED support in Synaptics ...
2
votes
0answers
714 views

SSH public key login fails without pattern

I'm running a bunch of servers with Ubuntu 14.04.1 (sun,hyperion,...) all of which use public keys (OpenSSH_6.6.1, OpenSSL 1.0.1f 6 Jan 2014 on all machines) for rsync without problems. Almost all... ...
2
votes
0answers
222 views

I am getting a strange install screen on Kali Linux and when I install all the way,I get a blue screen?

I have a picture of the issue here. The screen than proceeds to turn blue? Any help????
2
votes
0answers
174 views

how to do a sip call from sipp

I am newest user using SIPp , I am trying to made a sip call from SIPp program on Linux but i fail on it . i want a command to call phone number (14042835351) from sip domain (80.81.82.83) with same ...
2
votes
0answers
129 views

Using 1G transparent hugepages on Fedora 20

My scenario is a 1TB Intel workstation with Fedora 20 with a single process using almost all memory (and most memory allocated by the process comes from two almost-half-terabyte allocations; then ...
2
votes
0answers
752 views

How can I make wlan0 show up automatically when I plug in my WiFi USB adapter?

Before I plug in the USB there is no wlan0: root@beaglebone:/mnt/etc/network# iwconfig lo no wireless extensions. eth0 no wireless extensions. usb0 no wireless extensions. ...
2
votes
0answers
46 views

What tools can show me the CPU usage that doesn't appear in top/sar?

I have a virtual machine that's using ip_tables to set up some connection forwarding. According to top, sar and /proc/stat, I'm > 99% idle. However, perf says I'm only about 72% idle, with the rest ...
2
votes
0answers
86 views

Can Linux be configured to wait for USB storage to be reattached instead of returning I/O error

If a usb_storage device is physically detached from an Ubuntu machine while it is still mounted, any attempt to access the file system will produce an I/O error. Is there some way to configure Linux ...
2
votes
0answers
110 views

Using shared memory through tmpfs and NUMA on x86_64/Linux

Here's what I'd like to do: put a file on tmpfs but ensure that all of it (all pages of it) ends up on the same NUMA node. First, I thought this would be trivial: I'd just mmap() a tmpfs file with ...
2
votes
0answers
106 views

Maildir permissions for courier

I'm having difficulty with maildir permissions for Courier, an IMAP server I've installed on a box running Debian Wheezy. The mail directory I use is /var/mail/users, with the following permissions: ...
2
votes
0answers
364 views

chromium add a protocol handler

A lot of years ago I was using kde/konqueror and one nice feature was the ability to open man and info pages using man:// and info:// as url protocol, I never checked but guess man/info pages were ...
2
votes
0answers
77 views

Update Corrupted GRUB; Can't Boot Right

Okay, I've been trying to repair my GRUB for awhile on my version of Lubuntu 14, and nothing seems to work. It seems that an update has broken my GRUB, so that now when I try to boot on the ...
2
votes
0answers
103 views

How to find IP of the KVM Virtual Machine from Host system?

My KVM VMs are connected using MaCVTAP connection VM network Interfaces. I have to manually go into the VM to find the IP address. The VM interface doesn't ping to the host interface as the source ...
2
votes
0answers
60 views

Send/Receive bandwidth monitor per application?

I'm looking for a tool that can monitor my system and create some summary how many data was sent or received by each application/process. Is something like this? I found nethogs but he shows only real ...
2
votes
0answers
51 views

How can you annotate or club info into ELF core files on Linux?

For debugging core files it would be useful to add additional information into a core file at the time it is generated. I'm currently using /proc/sys/kernel/core_pattern to run a 'dumb' script that ...
2
votes
0answers
122 views

Configuring default static routes with RIPv2

I am currently working on an assignment managing a smaller virtual network with virtual box and tiny core Linux. (Using quagga) I am supposed to let RIP handle the default routing, though I cannot ...
2
votes
0answers
376 views

Read Apple nvram

On Mac OS X there is a tool called nvram to get and set EFI properties. As I am now deploying GNU/Linux on Apple hardware, I'd like to have a similar tool that is able to talk to Apple's EFI ...
2
votes
0answers
40 views

Is it possible to login to a Linux machine with AD credentials without the machine beeing member of the AD?

I'm asking because as far as I know this is not possible with Windows machines since it's mandatory that a Windows machine is known to the AD in order to login with AD credentials. Is it possible to ...
2
votes
0answers
49 views

recover lvm after loosing partition table

On one of my hard drives had a few physical volumes/partitions and lvm on them. And then I lost partition table. I still have files from /etc/lvm/* how can I recover my data?
2
votes
0answers
51 views

Tool for dumping Linux VFS superblock

From the dumpe2fs man page: dumpe2fs prints the super block and blocks group information for the filesystem present on device. So dumpe2fs will dump the filesystem superblock. Is there any such ...
2
votes
0answers
46 views

Why is there no rootfs file system present on my system?

The linux kernel documentation claims: Rootfs is a special instance of ramfs (or tmpfs, if that's enabled), which is always present in 2.6 systems. You can't unmount rootfs … On all linux ...
2
votes
0answers
335 views

How to mount squashfs (embedded-linux) on Ubuntu?

I have tried to mount a filesystem from a firmware (embedded-linux) but it failed on my Ubuntu 12.04 machine. Could you tell me how to mount that file system? (or possible reasons of the failure). ...
2
votes
0answers
84 views

Top forest view with filter, can I include all children?

If I'm using top in "forest" mode (V) and I restrict by PID (o PID=12345), can I also get top to show all the child processes in the same view? Ubuntu, top from procps-ng version 3.3.9
2
votes
0answers
26 views

Defining Languages Available at boot - LiveCD

I am trying to create a refined version of the buggy uck for customizing Ubuntu LiveCD ISO, here it is if you're interested in helping. NOTE: The process is straight-forward, except when customizing ...
2
votes
0answers
56 views

Possibile sources of 5us-20us latency gap when sending long block of of serial data to tty device?

I have a trivial C program that just sends a large block of data out the serial port at a fast baud rate. When looking at the bits actually coming out of the port, I see that there is a almost always ...
2
votes
0answers
312 views

Cannot mount second 1TB harddrive in Linux, works fine in Windows 8.1

So I have this problem with my second hard-drive that I have been trying to fix for quite awhile now with no luck. I have searched around to try to find solutions to my problem but nothing seemed to ...
2
votes
0answers
263 views

Change color balance on Intel Graphics

My laptop has some screen or cable problem, because of which the screen is all pink colour. In Windows I use my Graphic Card configuration software to change the screen colours mixing colour channels ...
2
votes
0answers
41 views

How to set up networking on a per-user basis?

I would like to set up access to corporate VPN for just my user account on my computer; not for the other accounts and certainly not for the guest user. To achieve this, I presume, I need to ...
2
votes
0answers
139 views

how to migrate a squashfs system to another filesystem that's read/write

Well, basically what i want to do is copy all of my router's files (even the dev file (because i'm running busybox)) to my usb flash drive and let my router by default boot from the usb device. it ...
2
votes
0answers
239 views

Focusrite Scarlett on Linux input mapping?

Does anyone use these interfaces on Linux? If so, how do the inputs map (e. g. with ALSA/PulseAudio)? E. g. the Scarlett 6i6 has the following connections. Inputs: 2x symmetric XLR inputs (one for ...
2
votes
0answers
185 views

HTTP request failed after listening on multiple ports or after enabling SSL Module on my Linux Board

I have one custom Linux board on which I want to run apache web server to test HTML and other web based services. I have configured, cross compiled and installed default httpd (2.2.24, 2.4.1, 2.4.4 ...
2
votes
0answers
2k views

Vagrant: failed to mount nfs shared folder (mount.nfs: Operation not permitted)

Vagrant throws error message: ==> default: Mounting NFS shared folders... mount -o 'vers=3,udp' 192.168.33.1:'/home/xxx/vagrant/www' /home/www mount.nfs: Operation not permitted ssh to the ...
2
votes
0answers
148 views

Mails from my server goes directly to spam

I am running an ubuntu server with plesk panel, Mails sent from this server goes directly to spam folder. All records seems perfect like spf, DKIM, Domain key, PTR etc.. I'm really stuck with this. I ...
2
votes
0answers
117 views

LXDM login doesn't work

I installed Arch Linux on VirtualBox. As a login manager, I've chosen LXDM and XFCE for the window manager. I've set /usr/bin/startxfce4 as the session in etc/lxdm/lxdm.conf. The problem is that ...
2
votes
0answers
59 views

Last data traffic time for a TCP socket

Is it possible, to find out when was the last time there was any traffic on an opened TCP socket? Keepalive and timeout timers are based on this statistic, so I guess it has to be stored somewhere. ...
2
votes
0answers
917 views

Forced reread of partition table: difference between BLKRRPART and BLKPG ioctl? (Linux)

When I want Linux to consider newly created partitions without rebooting, I have several tools available to force a refresh of the kernel "partition cache": partx -va /dev/sdX kpartx -va /dev/sdX ...
2
votes
0answers
4k views

Mounting NTFS Drives in Linux Mint

My laptop is an Aspire E1 -431. When I installed Linux Mint 15 and 17, I found that the NTFS drives cannot be mounted: Error mounting /dev/sda3 at /media/kutti/BE6C20D66C208B6B: Command-line `mount ...
2
votes
0answers
548 views

Dual boot Solaris and Linux

I have a laptop running Oracle Solaris and Gentoo Linux. First I installed Gentoo Linux. I used GPT partitioning scheme. In order to boot Gentoo Linux I have GRUB 2. Then I installed Solaris 11.1. ...
2
votes
0answers
263 views

How to use a dongle as HotSpot on Linux?

I'm running Linux on a virtual machine on MAC OS. Currently, I've written a script to use a dongle to connect to a WiFi network and use web services. Now, I am looking to use my dongle as a WiFi ...
2
votes
0answers
147 views

Reduce cache size of flash storage devices

For various benefits Linux uses a memory cache for writes to removable stogare devices like memory sticks. This cache seems to be quite large on my system, which leads to some annoying behavior. For ...
2
votes
0answers
341 views

Problem booting using Live USB on MAC

I have tried creating a bootable Linux USB that i want to use on MacBook Pro 2013. I used 'MAC Linux USB Loader' to do that. Linux distros I tried it with: Slack puppy and DSL (Damn small linux) ...
2
votes
0answers
82 views

Scripts cannot run simultaneously on startup

I want two scripts (Server_drive, Server_video_boot) running on startup, but there is conflict between them. Specifically, there is always running the script with the lower priority. I tried with many ...
2
votes
0answers
3k views

Creating multicast join for tcpdump captures

I want to write a linux shell script which will capture specific multicast traffic. Specific as in, I want to create a pcap file that has all the traffic for one specific multicast group/port. Here ...
2
votes
0answers
315 views

Android w/ Glibc stack, how can I set-up audio w/ nvlc? Is it possible with ALSA(Debian)?

With the help of the book "Embedded Android" by Karim Yaghmour I managed to learn enough about Android's build process last fall. With enough fiddling around and Google'ing I learned a sufficient ...
2
votes
0answers
2k views

Red Hat with rpc.statd is not running and can't start nfslock

I try to mount from Linux machine to some folder on a Windows machine. From the output I see that mount complains about rpc.statd. So I tried to start the nfslock but I got FAILED. Then I look on ...