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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2answers
39 views

install cisco VPN client on linux in place on WIN XP

I am currently using Windows XP with Cisco VPN Client version 5.0.01.0600 I would like to replace Windows XP with Linux, either Red Hat version 5.x or 6.x My question is, what equivalent VPN ...
8
votes
6answers
1k views

What are the platforms that Linux is being used frequently on besides x86?

What are the platforms that Linux is being used frequently on besides x86? I know that x86 dominates. But, what are other platforms that some people also use Linux for? Are there links for ...
1
vote
2answers
80 views

Linux Shell fundamentals: How can I check the file descriptors status, (where are redirected to) right now without lsof?

I am learning about file descriptors for the case of Linux, and I was wondering if there is any command showing a complete list that allows me to know where is each one redirected to in this moment. ...
3
votes
1answer
32 views

Confusion regarding the term 'mount' in Linux

I am reading the man page of mount and clone. I understand that mount is used to add a directory hierarchy to a mount point (a directory). In clone's man page, under the CLONE_NEWNS section, they ...
2
votes
1answer
28 views

Accidentally typed crontab with just the dash

What happens when I type just "crontab -"? The "e" didn't take before I hit Enter. It just moved the cursor to the next line and I had to Ctrl+C to exit, but I'm not sure what it did exactly. I'm on ...
1
vote
0answers
48 views

ERROR: Failed to build linux

While compiling linux, I get following error: [ALL ] CC drivers/usb/otg/ulpi_viewport.o [ALL ] LD drivers/usb/phy/built-in.o [ALL ] LD drivers/usb/storage/built-in.o [ALL ] ...
0
votes
2answers
16 views

wpa_supplicant ignore some networks

I am using wpa_supplicant and would like to add a rule so that my machine connects to any open network. I can do this with: network={ key_mgmt=NONE } Now I would like to blacklist some ...
0
votes
1answer
51 views

Recursively delete hidden directory & its files?

I want to delete all hidden directoris from a directory and its sub-directory. I also use rm -rf .directory_name this command is iterative command I want to a recursive command. Please anybody help ...
0
votes
1answer
26 views

Getting black controls when running linux on vmware on windows

I want to run ubuntu 12.04 LTS. I want to put the graphics in it, but when I open it, I get this. I used this command sudo apt-get install --no-install-recommends ubuntu-desktop to put the desktop ...
1
vote
1answer
68 views

Why is swap used when a lot of memory is still free? [duplicate]

In the below 2.6.18 Linux Kernel (Red Hat) server, there is a lot of free memory, but I see some swap is used. I always thought of swap as an overflow when memory has been depleted. Why would it ...
0
votes
0answers
15 views

Citrix on Wine under Centos 6.5 printing garbage characters

I have setup Centos 6.5 and wine is used to run Citric Apps. When printing from Citric it is printing garbage value. But printing fine from Centos. Printer is HP Laserjet pro 400 on network.
1
vote
1answer
38 views

Will having dozens of inactive logins hurt performance

I work on a cluster shared with ~20 users, many of them operating remotely. It's quite common to open the login node, type users and see ~100 users listed, mostly the same user logged in multiple ...
4
votes
1answer
46 views

Linux: How to calculate/find the slackspace of a file?

How would I go about finding the slackspace of a file, for instance. fls -o 63 /images/diskimg.dd istat -o 63 /images/diskimg.dd 31 icat -o 63 /images/diskimg.dd | xxd | less In which of these ...
0
votes
3answers
59 views

send email to approximately 10,000 users in bcc using mailx

We have a requirement to send an email to ~ 10,000 users in BCC. We have used mailx command to send email to 10-15 users by using -b option and delimiting all the email id's with "," is there any ...
0
votes
1answer
60 views

Understand debug messages from sshd [closed]

I'm using OpenSSH_5.8p1 in my machine,I'm connecting my machine using putty client but its slower so I have ran sshd in debug mode and found following messages can any one explain me in detail about ...
21
votes
3answers
1k views

When is a reboot required?

Apart from upgrading the kernel, are there any changes to a Linux system that require a reboot? I know there are situations where a reboot makes things easier, but are there any that cannot be ...
2
votes
1answer
54 views

inotifywait not working when folder is deleted and re-created

I am trying to use inotifywait to monitor a folder: inotifywait -m -r /home/oshiro/Desktop/work_folder The command works and if I create files in that folder, all seems to work correctly. While ...
3
votes
1answer
20 views

What is the interface scope (global vs. link) used for?

Routing table entries have an attribute scope. I would like to know how the change from global to link (or the other way round) affects the network system.
1
vote
1answer
19 views

How to use one nic for storage traffic & other for network traffic in Linux(Slackware)?

Problem I have a Linux machine (Slackware) with two network interface cards and i want to use one interface for network traffic and other for storage traffic . As this is Slackware i dont know this ...
1
vote
0answers
80 views

Possible issues with SSD SATA3 drive

While investigating the issue with my SATA3 SSD drive being recognized as SATA2 (for some reason had to change SATA ports to fix it) I noticed the following messages when I run: $ dmesg | grep ...
1
vote
0answers
21 views

OpenVPN not connecting on one network?

I've been using my VPN (privateinternetaccess) for almost a year. I've been connecting through the same gateway, using the same username and password, with the same settings. Yesterday, it randomly ...
2
votes
2answers
29 views

Where kernel configuration file is stored?

I currently run Angstrom Linux 2.6.32. I intend to upgrade linux kernel from 2.6.32 to 3.0.7. For this reason, I had to configure kernel 3.0.7 running make menuconfig. Now, I want to compare the new ...
1
vote
1answer
33 views

Fix for: /usr/lib/libnssutil3.so: undefined reference to `PL_ClearArenaPool'

Error occurs during attempt to make via: cc -m32 -s -o ford_check_password ford_check_pws.o wsl4_cookie_auth.o fds_auth.o -L. -L/ford/thishost/proj/dmadmin/ford/lib -lcrypto -lldap50 -lssldap50 ...
0
votes
0answers
8 views

Gentoo XEN host + EFI + MDADM + IMSM RAID5

I have a workstation with a working Gentoo setup. It uses IMSM FakeRAID (level 5) with 4 disks. Booting done without bootloader using Linux kernel EFI STUB. System works fine. Now I need to setup XEN ...
-1
votes
1answer
41 views

Removing files and symlinks like /etc/*release. Could it cause issues?

I just got a VM running on CentOS 6.5 and ls -l /etc/*release returns a number of files like /etc/centos-release, /etc/lsb-release, and /etc/redhat-release. The last one, /etc/redhat-release, is a ...
4
votes
2answers
73 views

How to kill a process started as daemon?

I start a process using foo &. It outputs something like: [1] 16915 This is the process id, I guess. How can I store this number into a variable named MY_PROCESS_ID (for example)? Then I ...
3
votes
2answers
69 views

Denying “/opt/” access for SFTP Users other than particular dir

This is my first (newbie) post here in unix stackexchange. I want to use my WebServer (Debian) as SFTPServer giving access to particular employees. The dir structure is as follows under root: ...
1
vote
1answer
30 views

init: /etc/init.conf: Unable to load configuration: No such file or directory

Running Linux 6 on VMWare, I noticed this in the system message log: init: /etc/init.conf: Unable to load configuration: No such file or directory What's the cause of this error? How do I ...
1
vote
0answers
32 views

Mount EXT3 with 16KB blocks

I have a failing Sparc based Netgear ReadyNAS that uses LVM on Raid with EXT3 partitions with a 16KB block size. I would like to pull the drives out of the NAS and mount them read only in a Linux box. ...
0
votes
1answer
68 views

Debian and Systemd: breaking ordering cycle error

I'm a new embedded developer I'm trying to make systemd 37 work with freescale vybrid board (A5 and M4) running on linux-3.0 After boot with some breaking ordering cycle error, I check with ps ...
-1
votes
1answer
30 views

Is there a reason that Apple's USB vendor ID on Linux is a close anagram of Broadcom's? [closed]

I was poking around in lsusb and I noticed that Apple's USB vendor ID, 05ac, is a very close anagram of Broadcom's, 0a5c. Is there a historical/political/other reason for this, or is it just a ...
1
vote
1answer
24 views

mailx and HP-UX to RedHat migration

We are migrating some servers from HP-UX to Linux RedHat, and we have to migrate about 100 shell scripts that are referencing /usr/bin/mailx (instead of /bin/mailx on Linux). We'd like to change all ...
0
votes
0answers
8 views

SimpleScreenRecorder, Two Inputs

I need to be able to allow SimpleScreenRecorder to record two sections of my screen/external sources without much post-production editing. Is that possible?
0
votes
2answers
52 views

What are ways to encrypt a password inside an environment variable

I have this file I use to set my username and password before exporting the value. #!/bin/bash echo -n "User:"; read user echo -n "Password:"; read -s password export ...
3
votes
1answer
28 views

How to get address of connected USB modem?

I just connected my N81 telephone as USB modem to Linux Mint 14. All works fine, just wondering how to find a full path to this device, something like /dev/tty*.
2
votes
3answers
96 views

Custom Linux Distro that runs just one program, nothing else

I am wondering how I could go about creating my own "custom" Linux distro that will run just one program, pretty much exactly the same way as XBMCbuntu. I'm not asking for a step by step guide, just ...
1
vote
0answers
19 views

6.0.7 Debian timeout if more connections at once

We are a some devs working on a Debian server. We are all connecting from one IP. So basically the server handles a lot of requests from the same IP. Now what happens from time to time, is that we ...
2
votes
1answer
30 views

Pull a file from a Docker container?

I can see that it's possible to insert a file into a Docker container via insert: docker insert IMAGE URL PATH Is there a way to fetch the contents of a file in a Docker container and save them ...
3
votes
1answer
54 views

Init script leaves thousands of defunct processes

My problem is that I have an init script that is generating thousands of defunct bash processes. My goal is to have a program called "fr24feed" in its own screen session on boot. After looking at ...
2
votes
1answer
42 views

How do I create an IPv6 overlay network?

I would like to create host-only IPv6 networks on two hosts and then route between them. On each host, there will be a dummy interface, at ipv6_prefix::9. I would like to be able to ping that ...
5
votes
1answer
72 views

Attempting to Abbreviate kSAR's PDF output

I'm currently writing a cronjob around kSar's command line (non-GUI) options in order generate PDF's. I'm just going to email a PDF of the previous day's activity to a different webmaster (basically ...
5
votes
3answers
183 views

Why do I need a tty to run sudo if I can sudo without a password?

I have configured sudo to run without a password, but when I try to ssh 'sudo Foo", I still get sudo: sorry, you must have a tty to run sudo. Why does this happen and how can I work around it?
1
vote
1answer
69 views

Linux Mint 16 display resolution and monitor

I am using Linux Mint 16 and I have two questions. I am very disappointed I have needed to resort to a website to answer this, usually on Windows this would be very intuitive. The first problem is ...
0
votes
0answers
21 views

How to listen to hardware button click events in Ubuntu?

My laptop has a slot loading DVD drive and the eject button does not work under Ubuntu. So I thought it might be possible to create a script to get the button to work. So how do I listen to that ...
1
vote
2answers
19 views

How to mount an remote filesystem with specifying a port number

I am trying to mount a director from another server on my server. For that, I have tested sudo mount -t nfs 11.11.11.111:/some_directory /mnt/test/ But the connections gets a timeout because on ...
0
votes
0answers
160 views

Installing Elementary Isis beta

How can I install Elementary OS Isis Beta? I tried to made a bootable stick using the latest iso builds but for some reason I cannot login. Having elementary OS installed on my machine, how can I ...
4
votes
1answer
167 views

How we can avoid rebooting the system after partition change with fdisk?

When modifying the partition table, fdisk usually returns the following error message: WARNING: Re-reading the partition table failed with error 16: Device or resource busy. The kernel still ...
1
vote
1answer
28 views

Why does RTC device have 254,0 instead of 10,135 as Major,Minor numbers?

Why isn't /dev/rtc the well known "c 10 135" device that it's on x86, but a magic undocumented "c 254 0" device? Devices.txt lists this major number as LOCAL/EXPERIMENTAL USE. I'm working on a ...
0
votes
0answers
11 views

I2c with 16 bit addresses

So, i'm trying to interface with a device that has 16-bit addresses, and the master I'm using also supports this mode. However since this isn't standard I2C (should be 8-bit addresses) I haven't been ...
1
vote
0answers
28 views

Arch linux installation problem

I used to work on Arch Linux at my desktop. One year ago I started to use laptop Samsung np530u3b. This laptop has one bootable HDD Hitachi (500gb) and 16gb ssd (so system from this SSD can't be ...