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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0
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1answer
29 views

unrecognized --sysroot option.(Eclipse)

I'm trying arm cross compilation using sysroot for the autotools project.The options I'm using for autogen script is as follows. CC=arm-linux-gnueabihf-gcc --with-sysroot=/opt/sysroot/dir \ ...
1
vote
1answer
37 views

Is bluetooth keyboard associated with `stdin`?

I know that keyboard is standard input and is referred by the stdin file. I sometimes use a Bluetooth(BT) keyboard when working on my laptop. Both keyboards, my laptop keyboard as well as the BT ...
0
votes
1answer
168 views

Redhat “httpd” can not start anymore. Showing “suEXEC” and “SELinux” notices

I'm on RHEL 6.5 and Apache 2.2.15. When I restart the httpd, I can not start that httpd anymore. Showing following things in the /var/log/httpd/error_log: [Fri Aug 01 18:31:48 2014] [notice] suEXEC ...
-1
votes
1answer
51 views

Bluehost to Digital Ocean: Building a Web Development / Test Environment on Laptop

For the past few years I've been a Bluehost / LAMP site developer, but now i intend to switch to Digital Ocean to get a competitively-priced VPS i can use to pursue other technologies (nginx, Scheme ...
1
vote
0answers
52 views

Different layouts and specific key mapping for different keyboards

Here's the deal I have an apple aluminium usb keyboard connected to my laptop with "windows" keyboard. And almost everything works great on my apple keyboard except three annoying problems. Each ...
1
vote
1answer
25 views

Show shutdown messages from last shutdown [duplicate]

Where does Linux store the shutdown messages from last shutdown?
0
votes
1answer
31 views

What this Iptables rules does?

I think I can understand this iptable rule, but I want to make sure what it does, so can someone explain to me technically what this does? well this two rules combined. /sbin/iptables -t nat -A ...
0
votes
0answers
23 views

How can I use 0.0.0.0/0 in ipset hash:net,port?

Right now, if I do ipset a ansible_allowed 0.0.0.0/0,tcp:22 I get ipset v6.19: The value of the CIDR parameter of the IP address is invalid and instead I have to add 0.0.0.0/1,tcp:22 ...
-1
votes
0answers
56 views

Sum of all files does not add up to used disk space. Why?

A big folder on my external hard drive is missing and I am trying to find out where it went. When looking at the properties of my volume I found this weird difference between the sum of all files and ...
0
votes
1answer
62 views

autorun a linux program on startup from a non-root user in centOS 6 64bit

I have a software that needs to be run via specific user "non-root" hence its home directory is /home/non-root/, I have to emphasize that the program must not be run via root and must only run after ...
3
votes
1answer
106 views

md5deep utility giving wrong/different output!

md5deep utility gives different result when calculating hashes. I have used several online tools to calculate hash and they give same result but md5sum or md5deep program on linux gives different ...
-1
votes
0answers
32 views

Pentesting Videos copied from kali linux does not play in windows why?

I had downloaded 9GB of penetration testing videos to my Kali linux OS. Now after I made a backup of all videos on a external hard disk. I tried to play them on windows but it gives error, inavild ...
2
votes
0answers
15 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
1answer
12 views

Get allocation status of a file's range in an FS which supports delayed allocation

For a very large file with delayed-allocation, some sectors may have been allocated and some may not. Delayed allocation is supported by ext4/xfs/etc.. For example, create an empty file and set to ...
1
vote
0answers
32 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 ...
0
votes
0answers
20 views

Fusing old “KNotes” repository into a “KNnotes” repository on a new KDE installation

(Migrated from "superuser"; I will probably manage to actually test this over the weekend. Meanwhile...) I want to migrate the KDE Knotes database from an account that existed on a Fedora 17 ...
0
votes
0answers
62 views

Debian installation fails due to CDROM not being detected

This is a problem many users have, but there doesn't seem to be an effective solution that works for everybody. When trying to install Debian 7.6 (problem exists for other versions as well) from a ...
0
votes
1answer
32 views

similar content Project access from a single file [closed]

I create three different project which are access different three different database. Except that all project files are same. so, I want that in a project folder all project files and in other two ...
0
votes
0answers
30 views

Get number of installed RAM sticks on server and size [duplicate]

I found that into the directory /sys/block I can list the block devices [root@srv block]# ls loop0 loop3 loop6 ram1 ram12 ram15 ram4 ram7 sda loop1 loop4 loop7 ram10 ram13 ram2 ram5 ...
1
vote
0answers
10 views

How can I find out what's seeding in Vuze if it's not listed anywhere in the application?

I use Vuze (formally known as Azuereus) for downloading torrents. But for some time now it's been seeding something that I can't see or find anywhere. It's not listed in any of the lists that are ...
0
votes
2answers
84 views

Installed Linux, now Windows doesn't boot anymore

I had a working Windows 8.1 which I used regularly. Today I needed Linux, so I chose Ubuntu and installed it from a bootable flash drive alongside Windows. Everything worked well, I could choose which ...
0
votes
1answer
27 views

Configuring setcifsacl to use local posix user instead of SID for CIFS share on Linux

I have a CIFS filesystem (from a NetAPP) mounted on a Red Hat 6 server using cifs_utils, and am sharing some directories from the CIFS filesystem out over HTTPS via WebDAV. I need to set some ACLs on ...
0
votes
1answer
31 views

install kernel headers without overwriting old headers

I've built a newer (3.16-rc2) kernel which is running fine. My userspace program needs to link against the newer headers as it uses some new definitions in fcntrl.h etc. My question is how do I ...
1
vote
2answers
393 views

PPTP VPN in CentOS 7

I recently installed CentOS 7 (Gnome), but I realized that there are no options for setting up a PPTP VPN client. I tried to install networkmanager-pptp-gnome, but unfortunately it's not available in ...
2
votes
2answers
37 views

Chrooted SFTP user write permissions

I have a setup with sftp only users: Match Group sftponly ChrootDirectory %h ForceCommand internal-sftp AllowTcpForwarding no I get the following message in my secure.log: fatal: bad ...
0
votes
1answer
46 views

Mandatory argument for script to run java program

My script is called: report_startDate It has the following line: $JRE_ROOT/bin/java -cp /home/me/report/config/:/home/me/report/jar/reporting-1.0-SNAPSHOT.jar com.me.project.report.Main $1 $1 ...
0
votes
1answer
23 views

Recovering a (not yet created) RAID5 with URE (Unrecoverable read errors)

I wan't to create a RAID5 array at home, the OS is Linux (Kernel 3.15.7) and the array will be created with mdadm. I wan't to create the array with eigth or ten 1TB discs. Let's assume a single drive ...
2
votes
0answers
36 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 ...
0
votes
0answers
28 views

copy mount from one server to another

I'm trying to copy the mount point from server1 to server2. So I copy the file, which I found in /etc/fstab, and did mount -a. It gives me the following error: mount: special device /dev/dX/dY does ...
0
votes
0answers
56 views

How can I set quotas (space limitation) for samba users?

I configured samba server in CentOS 6. It will be working fine. The windows users share the files through samba. I want to set space limitation for samba users.
0
votes
1answer
102 views

Segfault everywhere even when reinstalling the OS

Lately my PC keeps getting segmentation fault, everywhere, on almost every apps (thunderbird, firefox, chromium, google-chrome, wine, byobu) here's the last few output of dmesg: [ 1474.815026] ...
0
votes
1answer
21 views

home-built router - slow throughput

I am having slow performance with my home-built router. Compared to a stock Verizon (actiontec) router, it gets about 60 Mpbs down and 30 Mpbs up whereas I get about 15 Mbps and 20 Mbps up. I ...
0
votes
1answer
76 views

Solutions are telling me to update libc6, but it's already updated. How do I fix `GLIBC_2.15' not found?

I've been trying to run a Garry's Mod server through Open Game Panel all day. I've tried to fix almost all errors, but I can't fix this one. Failed to open dedicated_srv.so ...
1
vote
1answer
890 views

Fedora 20: Failed to start LSB: Bring up/down networking

I'm trying to restart my networking service in Fedora 20, and I get the following error: [dev@localhost das]$ sudo service network restart [sudo] password for dev: Restarting network (via ...
0
votes
1answer
45 views

How to evaluate a variable length in shell script?

I want to write a shell script, in which it will call different command according to the variable length. But I didn't figure it out yet. My unwork script is here: for i in n5 n25 if ${#i} == 2; ...
1
vote
2answers
86 views

Why does Linux only see 3832MB of my 4096MB of RAM?

I am setting up a lot of 64-bit RedHat VMs (VMware vSphere) for our development department in my company. Most of them start with 4096MB of RAM, but Linux only seems to recognize 3832MB. Can anyone ...
1
vote
0answers
17 views

gpg: Bad signature

I'm trying to sign a public PGP key but am encountering a 'Bad signature' error: gpg --edit-key someone@somedomain.com ... gpg> sign ... You need a passphrase to unlock the secret key for user: ...
0
votes
1answer
20 views

/usr/bin/X :0 -audit process

Hello I am trying to solve some internet problems that I have. It is a university computer and I do not have root access. I want to understand what is this processor, that root has started, and if you ...
1
vote
1answer
49 views

How to check my account on embedded linux without “/etc/passwd”?

On some embedded linux systems, there is no /etc/passwd file and /etc directory is not writable (which means I cannot set user account and password?). Then what is my (default) account name and ...
2
votes
1answer
29 views

Pin Lock Screen

Is there a way to replace password lock screen in Linux (Mint Debian Edition) with a pin lock screen? Like the one found in Windows 8 for example. It's annoying/inconvenient to have to input 16 ...
0
votes
0answers
46 views

Fedora not shutting down

Whether I do shutdown -P now or sudo shutdown --halt now Fedora does not shutdown. It will send SIGTERM and SIGKILL as usual, but then just stops at the screen with the fedora logo. My only option is ...
2
votes
2answers
52 views

How can I remotely debug a broken initrd?

Background I have a system that runs Linux. It's a NAS, and does not have any monitor, keyboard, or serial port. It does have a network port. I'm not happy with the software running on it, and am ...
1
vote
1answer
20 views

accessing substrings from lines in a text file and storing them

I have a text file like this chr1:16840617-16840780 RNU1-1 (2 columns are tab separated) chr3:142139047-142139211 RNU1-100P ............ ............ I want to loop over the lines ...
1
vote
1answer
27 views

How to decrease the time the processes would wait (blocked) for disk reads (only to discover an error)?

Waiting too long when encountering an unreadable sector on a disk is really very annoying. (Especially if you are trying to read as much data as can be read from a disk with bad sectors, and do it ...
0
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0answers
37 views

Set permissions not to change permissions [duplicate]

Consider an example File1.txt, t3dev and ttuser own this file actually but When I use my id(user1) and edit this file, the file user and group are changed to my id(user1). I want to set the ...
1
vote
0answers
64 views

How to properly start and stop shell script in linux, busybox?

I am trying to write a small shell script that would send some commands to my tv set from my set top box that has busybox on it. The problem is that it generates huge amount of zombie processes, and ...
0
votes
2answers
79 views

how to remove all double quotes from csv except specific field

I want to remove all double quotes from my csv but not the fourth field (because the four fields represent PATH of file) Please advice how to implement this by sed or awk or perl one liner , etc ...
0
votes
1answer
42 views

Unable to delete a file

An update has corrupted my system, I attempt a receipt and update of php5 error that you can not write /usr/lib/php5/libexec. When I try to read this file, which I find is this: ...
0
votes
0answers
18 views

PlayOnLinux(POL) Excel 2007 can not open more than one spreadsheet

I have Installed CentOS 6.5 - i386 and PlayOnLinux 4.1. On that MS Office 2007 is installed. Word 2007 is able to open more than one document simultaneously and also possible to perform Cut, Copy and ...
0
votes
1answer
40 views

Solid State drive vs. traditional hard disk in a virtual server environment

I am currently considering upgrading my virtual-hosting plan because of very bad write performance (mostly writing to a MySQL database, but I notice it also when compiling a program or copying files - ...