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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1
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0answers
12 views

rpm --verify does not inform about missing file

I noticed there is a missing file in the MySQL installation in a RHEL server. I want to know if there are more missing files so I tried to use rpm --verify (or rpm -V), however it doesn't output ...
2
votes
1answer
24 views

How to connect between two Linux machines VIA Linux router machine

I have three Linux machines that connected as the following: Linux_machine1 --> Route_linux_machine --> Linux_machine2 How to ssh from Linux_machine1 to Linux_machine2 Only VIA ...
-1
votes
1answer
25 views

how to convert video into webm format using ffmpeg in centos

how to convert video into webm format using ffmpeg and libvpx in centos I have install ffmpeg and libvpx in centos.but it's doesn't convert mp4 format into webm format. but in windows i have check, ...
0
votes
1answer
48 views

Cron Job every 55 minutes [duplicate]

I want cron to be run in every 55 mins. I followed the link CronJob every 25 minutes and my crontab command is */5 * * * * [ $(( $(date +%s) / 60 % 55 )) -eq 0 ] && wget ...
1
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3answers
95 views

How to decode base64 text in xml file in Linux?

I'm new in linux (shell). I need to decode base64 text in xml file using linux shell script. Could you please help me to write linux shell script for decoding the values of those tags where attribute ...
0
votes
1answer
20 views

How do I run the query 1 by 1 and return only exit code in bash script? [closed]

I've created a below script :- query1=$(command1) query2=$(command2) query3=$(command3) if [ $? -eq 0] then echo "Success" exit 0 else echo "Failed" exit fi the problem is when I ...
-3
votes
0answers
9 views

reconfiguration of NBD [closed]

please tell me the command of reconfiguration of nbd-server in Ubuntu. I want to reconfigure the nbd-server because when I restart the nbd-server it show me error and I have to reconfigure it
-1
votes
0answers
19 views

network block device: a port was specified but old style export were not requested

I configured the nbd-server in Ubuntu. I configured the following [generic] [myexport] exportname=/dev/sda1 port=9000 Now I restart the nbd-server service #service nbd-server force-reload but ...
0
votes
0answers
10 views

Fast TSC calibration failed error will not allow Debian to boot. Cannot get past GRUB

I have an airvision NVR running debian wheezy with the proprietary OS on top of that. I am a windows admin for years but have minimal linux experience before this. Recently we had a power outage and ...
2
votes
1answer
20 views

/dev/mapper in fdisk

After installing CentOS, I see several lines like /dev/mapper/centos_jackpc--11-swap and /dev/mapper/centos_jackpc--11-root when I issue fdisk -l. What is the purpose of these? And why do they not ...
2
votes
0answers
47 views

How to keep my C program from terminating when CTRL-C is pressed? [migrated]

AFAIK this has something to do with "catch the SIGINT" but I'm looking for more details. Like many others I learn C by writing my own CLI that can start other program located by the environment ...
0
votes
0answers
3 views

Problems MBR and GPT Partitions on a Linux Host on SLPOS

Ive a Host loaded with SLPOS Image from a SLPOS Branch Server (SuSE Linux Point Of Service) and i want to handle this issue, when system boots it download a PXE who does a check of a several checks ...
0
votes
0answers
5 views

videoconferencing/audio-only-conferencing on LAN

The given scenario is an office-building with several floors. Using linux servers and linux clients it is necessary to create a system for videoconferencing or if not possible then audio-only ...
0
votes
1answer
14 views

Dual booting with two drives

So I need to install a microsoft product on one of my drives today sadly. My current setup is so that I have a SSD which has Linux on it. And a 1 TB HDD which just extends my Videos and Documents ...
1
vote
0answers
20 views

Caldera Debian Keyboard Output Chinese Characters

So, I'm an involuntary IT guy at my current position, and we have come across an issue with Caldera's flavor of Debian Linux. For some reason, with no real prompting, our keyboard starting typing ...
1
vote
1answer
17 views

Help about CentOS 7 apps & Driver [closed]

I'm using pc for several years but never tried Linux so I'm quite noob in this field. I'm using Autodesk maya, Nuke & will learn houdini very soon. I found that linux works faster for this apps so ...
2
votes
1answer
31 views

Can one core on a multicore linux system be dedicated to one user-space app?

Can a core be dedicated to one user-space app (e.g. for the purpose of bit-banging GPIO without any interruptions)?
3
votes
1answer
45 views

Prevent a lot of brute force attacks on Exim2

Some people or computers have been trying to log in a lot of times on my Linux DirectAdmin server over the last few days. I am receiving a lot of messages of brute force attacks for Exim2 in ...
1
vote
1answer
21 views

problem with upstart

Hi i got always an error message that my upstart script doesnt start. start: Job failed to start My script is: description "Tagger Version 2" start on runlevel [2345] stop on runlevel [!2345] ...
0
votes
1answer
27 views

what does mean by HardwareCorrupted, DirectMap4k, DirectMap2M fields in “/proc/meminfo” file of Linux?

I am looking for description of following terms: HardwareCorrupted, DirectMap4k, DirectMap2M fields in "/proc/meminfo" file of Linux. I could find the following description for the fields from ...
1
vote
4answers
74 views

How to stop minute cron job?

I have a program written in python; my program scrapes a value from some financial website every minute and pushes that value into my DB. My program takes like 1 or maximum 1.5 seconds to do this ...
0
votes
0answers
23 views

Failed to execute the iscsiadm commands

When I am using the command: iscsiadm -m discoverydb -t st -p 10.10.11.12:3260 -I be2iscsi.00:17:a4:7a:e3:34.ipv4.0 --discover -P 1 I am getting below error: scsi host1: BC_207 : MBX Cmd Failed ...
1
vote
1answer
32 views

Where is routing table stored internally in the Linux kernel?

When I execute route -n, from where exactly (from which structs) is the information displayed retrieved? I tried executing strace route -n but I didn't help me finding the right place it's stored.
0
votes
0answers
17 views

/proc/diskstats and iostat are right? strange values on my test

My question is quite simple.. I am doing some tests to confirm the perfect work of both (diskstats and iostat) disk meters and something is wrong here. I write this command on cmd and I get the ...
1
vote
1answer
49 views

Writing openSUSE image to SD card

I am releatively new to linux and I have assembled a raspberry PI 2 model B and I'm relavively unexperience with linux. I have tinkered in the past with SUSE and want to start doing it again. I have ...
0
votes
1answer
13 views

#puppet apply site.pp gives below error on cent 6.4 [closed]

Could not find default node or by name with 'puppet-master.example.com, puppet-master.example, puppet-master' on node puppet-master.example.com
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votes
0answers
10 views

coonection time out after #puppet agent test

after executing following command puppet agent --test o/p Unable to fetch my node definition, but the agent run will continue: Warning:Connection timed out - connect(2) Info:Retrieving pluginfacts ...
0
votes
0answers
6 views

/var/lib/puppet/state/agent_catalog_run.lock exists

after executing following command on centos 6.4 m getting below error puppet agent --test o/p: Run of Puppet configuration client already in progress; skipping ...
2
votes
1answer
30 views

Is it possible to mask a file with a different one?

I'm trying to solve the problem that I have two OS (Windows 7/Debian) which I want to enable to share certain data from lets say Firefox/Iceweasel. My Setup Basically there's profile folder A on an ...
1
vote
1answer
22 views

Open Java programs of a linux machine on Windows with SSH?

I usually use laptop (which has Windows) to ssh to my Linux server and run stuff on it (e.g. Intellij, MATLAB). I wonder if there anyway to open Java programs (again, like Intellij) of a remote ...
0
votes
2answers
27 views

X Windows special programs: do some of these still exist?

I recall that X11 provided a number of "fun" programs accessible via unix. For instance, if you use the command xeyes, an interface will pop up of cartoon-like eyes which follow your cursor ...
1
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0answers
33 views

Grub package configuration error on each and any software update

Sometimes ago I had to restore Linux boot after Lenovo (v580 laptop) Windows 8 system recovery button pressing (just a stupid mistake). I followed this guide then ...
0
votes
0answers
11 views

Exporting parent directory to RHEL boxes

Is it possible to export the parent directory to the RHEL boxes where sub directories of the parent directory is already exported. Source-AIX machine Destination-RHEL machine e.g /usr/atc/abc already ...
1
vote
1answer
17 views

RHEL not booting with the updated kernel after upgrade [closed]

We have recently upgraded RHEL boxes, but the system only booted with the old kernel. Observation is that there is no link /etc/grub.conf to /boot/grub/grub.conf. Now, to boot the system with the new ...
1
vote
1answer
38 views

Who are the Linux Memory “subsystem” developers?

After an hour of googling, I still cannot find Linux Memory subsystem developers contact e-mail. Question: Where is the webpage that shows who develops the Linux kernel, specifically the Memory ...
-1
votes
0answers
10 views

Where to find rescan-scsi-bus.sh in linux os

I can't find the rescan-scsi-bus.sh. I installed yum install sg3_utils. Where to find this file? I checked in /usr/bin/rescan-scsi-bus.sh but i didn't found it.
1
vote
0answers
14 views

Windows file shares dissapear erratically in Linux file browser

My network consists of a router which acts as a dhcp server. Connected to one of its ethernet ports is a unmanaged switch which in turn has all my machines connected to it via ethernet. On this ...
2
votes
2answers
42 views

bash + how to define array variable with instance number

Is it possible to define variable that is called for example machine1 as machine$counter ( while counter=1 ) ? For example, I created the /tmp/config.txt file and set the machine1 as array: $ more ...
0
votes
0answers
24 views

Echo n-values for 1 key in ansible?

I have an ansible var : site1: - name: myName value1: something1 value2: apple value3: 14 ... valuen: "a submarine" So the point is, that I don't know how many values are ...
-1
votes
1answer
41 views

How can I get a log of all incorrectly entered passwords in linux?

How can I get a list of all incorrect passwords used whenever someone tried to log in. And how can this be generalized to all types of password fields in linux? As it mentioned by K1773R, yes it's a ...
1
vote
0answers
9 views

Xlib: resize window containing a pixmap [migrated]

Related to how-to-resize-a-pixmap-with-xlib. As it was concluded in the abovementioned topic, it's impossible to resize a pixmap. What about window, after pixmap is copied into it? In the example ...
0
votes
0answers
12 views

How should can I set up a machine dedicated only to running ZynAddSubFx syntheziser?

I'd like to set up a Linux machine dedicated only to run the soft synth ZynAddSubFx or Yoshimi (and receive midi data for ditto). The synth should start automatically when I switch on the power. I'd ...
-4
votes
0answers
16 views

Problem when trying to boot on a USB Key [closed]

I am trying to install Linux on my computer (Windows 8 /Samsung Series 5 Ultra). I have a bootable USB Key that I want to use, but when I go into the BIOS to change de Devices Boot Priority I can't ...
0
votes
1answer
19 views

What are the commands to discover lun disks [closed]

What are the commands to discover LUN disks in linux and esxi?
3
votes
0answers
38 views

Best practice to customize date/time format system-wide?

I'd like to customize exclusively the date and time format for my system, while sticking to the rest of the locale as is. I know that environment variable LC_TIME will make it possible to customize ...
1
vote
1answer
16 views

Detect when audio card is powered (using alsa)

How can I detect in a script if my audio card is being powered? Motivation: I have a Linux mini computer (Odroid U3), used as a music player. And I want to power on a connected amplifier only when ...
2
votes
0answers
31 views

How do I lock a growing directory in memory?

I want a directory to be fast to read from, like on tmpfs for some time. The closest thing is this: vmtouch -L -m 2G /path/to/mydir But this does not detect new or deleted files.
1
vote
2answers
35 views

Looking for Vodafone's mobile broadband application for Debian 8 (Jessie); does it still exist?

I have a Vodafone K3760 3G dongle I've used on laptops since Squeeze & Wheezy generally using (in preference to Gnome Network Manager's own support for mobile broadband) an application Vodafone ...
-2
votes
0answers
22 views

How to install Apache httpd as a non-root user and non-root user home directory? [on hold]

How to install Apache httpd as a non-root user and on non-root user home directory?
0
votes
0answers
32 views

Shell Scripting - return to previous loop until process is completed then die/done

I am writing a bash/shell script to automate some file filtering functions. I am stuck due to being new to scripting and I am not sure how to code the function in it to keep looping the top section of ...