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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0answers
4 views

Create authentication when someone acces httpd in centOs

I have CentOs 6.6, What I want is: When someone access the var/www/html on his browser, I want a authentication bar to pop up and fill in his username and password. this is because I want httpd over ...
0
votes
0answers
4 views

LUKS encryption, header on a dongle USBdrive?

I aim to install Linux the LUKS/LVM way, in order to have an encrypted disk. In addition, I would like to put the header and passphrase in a USB Key. Thus, instead of entering the passphrase, I ...
0
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0answers
7 views

Deploy/Duplicate a “configured/customized” linux on another machine?

I have made my linux server prototype, configured and tested. Now I aim to make clones of it, i.e. to install the same on several machines (same hardware). I think deployment. My first plan is to ...
0
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0answers
6 views

Unix Signal - Run the other commands when the process is being kill

Im having some problems running some commands after the process is being kill by the application. In my application im stopping the server and the process is being kill. At first i thought the nohup ...
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0answers
5 views

Encrypt existing disk with LUKS?

I have get informed on how prepare a LUKS system & partitions, giving a key/passphrase, etc. But for a new fresh install of linux. How to encrypt an already installed/configured linux system ? ...
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0answers
21 views

Preparation for Linux interview [on hold]

This is not an usual question but I have a very important technical interview for a higher level Linux support in 3 days. On this job I will have to install and offer support for SAP servers and I ...
1
vote
4answers
44 views

One column into two

I have already tried the other questions on here, with no luck. I have a file that is one column, and I need to split it into two. Have tried column command and doesn't seem to work: 123-zyx 234-yxw ...
1
vote
0answers
10 views

Chroot Users to /opt and subdirectories [duplicate]

I'll make this short and hopefully I make sense. Im trying to give a user ssh access, but, he/she must only be able to access /opt and the few subdirectories that live under it. However, here's ...
0
votes
1answer
31 views

grep also returning non matching lines

I'm trying to grep the output of strings and only find lines that start with a certain number of = chars. I tried strings data.txt | grep ^=* Sample output: 1~{, WX2 };K,< ========== ...
1
vote
1answer
15 views

How to deny access for virtual directories in .htaccess for all IP, and accep for 1 IP?

When you need to deny access to folder for all IP you should to put .htaccess in this folder, which must contein: Order Deny,Allow Deny from all Allow from 1.1.1.1 You can do it in virtual hosts ...
1
vote
1answer
24 views

The Deny the permission of mounting any drives to a user

I'm using Linux Mint 17.2 Cinnamon. There are multiple partitions on /dev/sda. /dev/sda1 is where the system resides, /dev/sda2, ..., /dev/sdaX are NTFS partitions. There are two users admin and ...
2
votes
5answers
50 views

bash expanding to same value instead of line by line value in sed command

I have a file containing numbers in it say numbers.txt as follows. 9374541632553 51243747879841 32030098896914 84654557358238 11000656847765 I want to convert it to the following format. ...
0
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0answers
11 views

gnome 3.x - how to make static workspaces and use numpad for navigating them

I have decided to try out gnome 3.x for a while, as I have been using unity for the most part. But I have become accustomed to the 2d grid workspaces in unity, and I can only think of one way I can ...
1
vote
2answers
50 views

how to go mouseless [on hold]

I would like to improve my efficiency. I recall seeing some tool to use gui applications on linux with the keyboard, but I do not recall much else about it! Please advise how I can go mouseless(for ...
0
votes
0answers
9 views

Installation guide for IBM Lotus notes 9.0 [on hold]

can someone help me in installing IBM Lotus notes 9.0.
0
votes
0answers
8 views

nvclock segfault with CRC mismatch

When trying to load nvclock_gtk it terminates with a segmentation fault. Reading symbols from /lib64/ld-linux-x86-64.so.2...warning: the debug information found in "/lib64/ld-2.19.so" does not match ...
3
votes
3answers
55 views

8G RAM and SSD - how big should the swap be?

I have a computer with 8G RAM and a 128G SSD. I don't plan hibernating. What swap size would you recommend? Would you change any swappiness? In the nearest future I'll compile programs (or even ...
3
votes
2answers
42 views

Physical Address Extension - how do virtual addresses work?

I'm running Debian Linux. uname -m says i686 which means 32-bit architecture machine with pae flag enabled. getconf LONG_BIT is 32. Installed RAM capacity is 6GB. My /proc/cpuinfo has an entry ...
0
votes
1answer
31 views

eth0: supported ports

I am having a board with RTL8111/8168B PCI Express Gigabit Ethernet controller, which requires r8169 kernel module to work. After inserting this module, network get started by eth0. Now, due to old ...
1
vote
1answer
38 views

Unable to install new kernel in ubuntu server. “gzip: stdout: No space left on device” error even though abundant disk space

I am trying to install a new kernel on Ubuntu Server and I am unable to complete it due to a "gzip: stdout: no space left on device" error. The full error was produced after running sudo make ...
0
votes
0answers
11 views

What permissions apply if specific user's permission on file or directory differ from user's group to which this user belong to in Linux? [duplicate]

Case 1: User has "rwx" permissions to certain file or directory. But has no permissions "---" in group it belongs to. Question: who wins - Does user have "rwx" or "---", effectively (not what's ...
1
vote
1answer
33 views

How can I replace the stock driver module inside a Linux ISO?

In particular, I want to replace the stock network drivers (r8169) with something else (r8168) in the installation ISO. Is this possible? Currently, I have to install Ubuntu/Debian/CentOS (same ...
0
votes
1answer
23 views

How to rotate log files [on hold]

i have made a script to zip my log file but by mistake both file is there in directory original and zipped. so is there any command can be used so that i can remove the original file only in one ...
2
votes
1answer
15 views

Taking a clone of a customized RHEL server hosted in a data center remotely

We are planning to upgrade OS to RHEL 6.6 on all our servers. All our servers are located in a data center. We have to follow a repeated process of installing application stack, securing, hardening ...
0
votes
1answer
26 views

How to do doxygen documentation?

My boss told me do documentation in doxygen and i am new to it. i did google and found you can do codes documentation in doxygen, but what about Details and text documentation which doesn't has codes. ...
2
votes
2answers
36 views

How to defend against a Live USB computer hack

A Linux installation can be simply hacked by using a live USB/CD, gaining root access on the live distro, chrooting to the target filesystem and running passwd root. One can use grub too. There may be ...
0
votes
1answer
18 views

Linux Mint on USB - mtab is a folder, not a file

I just installed Linux Mint Maya (13.2) onto a USB stick with uNetbootin (http://sourceforge.net/projects/unetbootin/). The install seems to work ok, and has a "persistence" partition which allows ...
0
votes
0answers
9 views

NVidia drivers and Linux distributions for Dell notebooks (Optimus techonoly)

I am trying to install NVidia drivers for CUDA in my Dell Notebook (Vostro V14T-5470-A50) with a NVida GTx 740M. My linux distribution is Ubuntu 14.04 LTS. The problem is that the screen freezes just ...
0
votes
0answers
8 views

How do I install and configure Graphics drivers on SliTaz Linux

How can I install graphics and other driver on linux slitaz lspci | grep VGA Result 00:02.0 VGA compatible controller: Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics ...
1
vote
1answer
43 views

how to disable access time settings in Debian linux

Performance Best Practices for MongoDB implies that: Most file systems will maintain metadata for the last time a file was accessed. While this may be useful for some applications, in a ...
0
votes
0answers
7 views

FATAL: ThreadSanitizer can not mmap the shadow memory (something is mapped at 0x2ba33adb9000 < 0x7cf000000000)

I am trying to use thread-sanitizer functionality in my code .For doing so I have used following script : g++ -Wreturn-type -fmessage-length=0 -std=c++11 -c -O2 -fno-strict-aliasing ...
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0answers
52 views

Which boot loader is commonly used on Linux distributions and why?

I have been using Ubuntu on my local machine and occasionally running Debian and other Linux distributions for experience. Until recently I thought Grub2 is far common, but that was misleading. While ...
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votes
0answers
30 views

Python, C or C++ for Linux admin [on hold]

First of all this is the first time for me to ask a question and I'm not sure exactly if its in the right place as I can't find a place for what I've, if it's not the right place then please guide me ...
0
votes
0answers
6 views

Is there a key binding to switch to “last” workspace in mint 17.2?

Mint 17.2, Cinnamon. I use dconf editor to set up my hot keys to switch between workspaces. Here is the relevant portion of my workspace key bindings: What I want is a key binding that switches ...
0
votes
0answers
21 views

Arch Linux Boot Halts on “Started Authorization Manager.”

I was using Arch Linux on my laptop, and during the shutdown procedures there was something making it wait and during that time my laptop ran out of batteries. Now when I try to boot it halts. This ...
0
votes
0answers
25 views

Detect when sdcard removed

I'm working with a small Arm board (Emtrion) running Debian Linux. Emtrion has provided an sdcard image that can update the boards flash. I would like to extend the simple update script, so that when ...
0
votes
0answers
4 views

Adobe Experience Manager Author Server running maximum CPU

Adobe Experience Manager Author Server running maximum CPU I have an adobe experience manager author server which is using 100% CPU. When I check the online sources and documentation, I was asked to ...
0
votes
2answers
20 views

KeepAliveD Documentation

I am looking for a consolidated documentation for KeepAlieD. My apologies if this is not the right place to ask this question. However, even after extensive googling for 2 days, i could not find a ...
2
votes
1answer
44 views

Grep on single line [duplicate]

I have a script that streams a pattern in a single line (no linebreaks). I want to grep stock_ticker in that line and output it as soon as I have found one. Now the script is never ending and is ...
-1
votes
1answer
33 views

Is it possible to delay booting the system after the user has pressed the power button? [on hold]

I want to delay the time to load the kernel after the user has pressed the power button by 10 seconds. Reasons for this is a machine we have built which requires other components to start sending data ...
0
votes
0answers
25 views

apt-get error installing software on Parrot OS

I am trying to install Evolution Email client but when I run "sudo apt-get install evolution" I get the following errors: "Reading package lists... Done Building dependency tree Reading state ...
0
votes
1answer
22 views

Extract source commands of an existing gnome terminal session? [duplicate]

I have a bit of a situation. One of my co-workers just overwrote everyone's bashrc and bash_profile files. My custom settings have been lost. However, I still have a terminal open which sourced my own ...
0
votes
0answers
7 views

How to set user creation limit on vtiger CRM?

I have installed vtiger latest version. In the admin panel how to set the user creation limit? I need to set maximum users = 10.
1
vote
1answer
15 views

Building RPM results in nothing generated in RPMS directory

I am building a RPM on RHEL. After following https://fedoraproject.org/wiki/How_to_create_an_RPM_package, I put my front.tar.gz in /rpmbuild/SOURCES, and make the spec file like this: Name: front ...
0
votes
1answer
18 views

ispconfig PHP not parsing on apache2 virtual host

I have trouble installing ispconfig 3 on my (L)Ubuntu 15.04. I can fully install ispconfig but I can't reach the website when viewing the virtual host of apache2. I can open ispconfig from ...
0
votes
0answers
23 views

Sending data from rs232 [duplicate]

I'm trying to write a loopback test with pins 2 and 3 connected. I am using Ubuntu OS and java for the code. The library that I'm working with is JSSC. I am able to read and write from the serial ...
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votes
0answers
29 views

accidentally remove all files in root, any way for recovery? [on hold]

i accidentally removed all files in root path. is there any way for recovery? now, it will appear the GNU GRUB when I log in
1
vote
1answer
40 views

pendrivelinux install on usb stick - only uses 5.8GB of a 14.7GB usb stick

I used http://www.pendrivelinux.com to build an installation of Linux Mint on a USB stick, so I could have a portable OS (mainly for work emergencies). It's installed, and works fine, but it's only ...
2
votes
0answers
8 views

pppd issue over serial cable

I'm trying to set up a ppp connection between 2 computers via serial cable, to enable TCP/IP over serial. Computer1 -> USB-Serial Converter -> Serial Cable -> Serial port of Computer 2 On computer ...
3
votes
1answer
36 views

Why don't most common Linux package managers allow package installation for normal users? [duplicate]

I tend to install quite a lot of packages with ./configure --prefix=$HOME && make && make install. Why can't I do this as easily with dpkg or yum? Or if I somehow can, what is the way ...