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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24 views

Black screen trying to install CentOS 6

I've got a windows 8.1 Acer Laptop and I'm trying to put CentOS 6 on it as a dual boot set up. The laptop doesn't have a CD drive. I've already partitioned my hard drive. I've used Unetbootin to put ...
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7 views

I wish to move SBC flash image to new board and maintain network interface indexing

I wrote a small php application on a SBC. I created a disk image from the CF card. When I write the image to a new CF and install on a new SBC the interface index numbers (I hope I am stating that ...
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33 views

X11 connection rejected because of wrong authentication for one display number

As stated in the title, I am having this error when I have ssh into a remote server with a certain display number assigned. There is not X11 forwarding problem since I can use GUI application as usual ...
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44 views

how to rename the Linux OS name installed in USB stick (LIVE USB)

I am looking for the solution for modifying the query. The requirement is as follows Installing the Any Linux OS in USB stick, here i have installed Fedora 21. Now I need to rename Fedora OS to "Nik ...
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25 views

wireless device not getting PHY address

I have the TP Link tl-wn822n ver. C (realtek chipset) wireless adapter and I am running Kali Linux from a live cd. After many hours trying to get around these problematic drivers, I managed to get ...
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49 views

python install on linux RHEL5 - GCC 4.1.2-52

I used the following guide from the Beyond Linux From Scratch SVN Book, not knowing that my distribution was actually RPM Based (see comments), and now I am getting the following error during python ...
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54 views

Openvpn client and server cannot ping each other(Connection established)

I have setup OpenVPN client and server between two VPS. I have a client and server setup, server using 10.8.0.1 and 10.8.0.2 IPs in tun interface, and client using 10.8.0.6 and 10.8.0.5 in tun ...
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10 views

XtreemOs for rendering

I am searching for a single system solution because i want to use such a system for rendering. I already found kerrighed but I did not get it working. Now i found the XtreemOS. On wikipedia, it says ...
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11 views

Create Snapshot an store it on a other server

Is it possible to take a complete Snapshot of my (VPS - CENTOS) server? with a script? And that it will stored on a other server? With snapshot i mean everything ( configurations, websites etc ) And ...
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72 views

Ubuntu 15.04 wired connection keeps dropping and restarting

I've finally switched to Linux (Ubuntu 15.04) 2 weeks ago and everything went well. But unfortunately after turning on my PC today and doing the usual (sudo apt-get update, sudo apt-get dist-upgrade) ...
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20 views

Route dies on Ubuntu 14.04.2

So I have this routing setup in EC2 on a Ubuntu machine: 10.50.0.0/24 dev eth0 proto kernel scope link src 10.50.0.163 x.x.x.x via 10.50.0.80 dev eth0 proto static y.y.y.y via 10.50.0.80 dev ...
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9 views

How to Transport a Mono Development Environement using Docker

I am developing a Mono Application and i want to run it on several Linux Machines . I have to set up Mono Development Environment on each machine and it can take a lot of time. I read that it is ...
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28 views

High %sy cpu usage , server is very slow

On one of the server we are noticing high %sy usage due to which server is very slow. Below is strace count for syscall. What will be the reason for high %sy usage. % time seconds usecs/call ...
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40 views

Getting error in nslookup

I am trying to do nslookup skhdphost1 but I am getting below error. When I try to Reverse lookup checking using command nslookup 172.16.xxx.xx again getting the same error: The error message is: ...
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38 views

Linux is reporting the CPU as too slow?

While staring at a terminal waiting for my code to compile, I started to wonder whether Intel's Turbo Boost was actually working. I have an i7-4770K which is rated at 3.5GHz, with Turbo Boost up to ...
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48 views

What does “4m[terminated]” mean after restarting CentOS?

After installing CentOS 7 and restart it, it always promptd "4m[terminated]". After googling, I can't find the meaning of this phrase. What does this prompt mean? Will it affect normal OS functions?
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20 views

Minimum required packages for a LFS/DIY-Linux system?

I am trying to make a super-minimal linux system, as a base for experimentation, and just for the experience. I have built DIY Linux (similar to Linux from Scratch) before, but I was wondering how ...
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14 views

iptables presale me to ssh access or calling methods remotely

I have a linux openwrt unit. At its start, I can not make a ssh access if I do iptables -F. If I use iptables -L -n -v, I find several rules that are automatically inserted and it prevents me from ...
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20 views

Metasploit target reverse connection

well, I found many tutorials on how to open a meterpreter session on devices. But this devices must be on the same network of the computer from I launch the attack (because the lhost often looks like ...
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15 views

HP SPP installation on Gen 8 blade servers running linux 6

How can I install HP SPP installation on GEN 8 multiple blade servers?
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23 views

Qemu Linux(kernel with debugging symbols) and ARM

I'm looking for a Linux ARM kernel, disk image and initrd that is compiled with debugging symbols. I'm looking to debug the kernel using the qemu and gdb. Could you point me to an arm linux image that ...
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34 views

no ext2/ext3/ext4 directory in /lib/modules/linux version/kernel/fs/

I have installed Linux 3.5 kernel and have compiled e2fsprogs as well. I have my own version of ext3 file system - lets say it is myfs. I have compiled myfs as well. Now I have few questions: How to ...
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21 views

not Booting a newly linux kernel inux-2.6.32.65.tar problem

when i give reboot command kernel not booting screen showing.. i uploaded this pic here , and caps lock key blanking
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8 views

centOs 7 Bind 9 pki directories what is the purpose

i would know what is the use of this directory, because he caused some bad behaviors(permissions issue) with the named-chroot service. So i would know why named-chroot need it to start. he contains ...
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33 views

How to route the traffic from machine 1 to machine 3 via machine 2 and vice versa, on the same subnet?

I've a Citrix Xenserver where I'm running VMs. I have three VMs there, and they have 2 NICs each: eth0 is my company LAN which I'm using for management, and eth1 is a "single-server private network" ...
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8 views

Building Apache 2.2 distribution with LDAP and SSL modules

I am trying to build a custom Apache 2.2 binary distribution on Linux RHEL 5.3. I first uncompress the Apache 2.2 sources. Then, I configured the file build/binbuild.sh as follows: ...
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22 views

Network problem in Kali via bridge on VM

It's as simple as the title. I've installed Kali Linux and can't get ipv4 using bridge network on VM. Already tried all the popular solutions like changing NetworkManager.conf and restarting it. ...
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79 views

the moire pattern - how to calibrate my LCD?

I faced a strange issue (something like described here and here); I am not sure but when I look at the lcd screen it feels like an eyes strain or similar which is quite uncomfortable; On Linux Arch ...
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14 views

Partitions going offline and coming back online

We have Linux server that has 5 LVM partitions. In that two partitions are going offline and coming back online again and again. It is a critical server. Please help, how to resolve the issue.
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34 views

rgmanager [fs] start_filesystem: Could not match “f6a58cf7-b39b-489c-add5-444ceab8af9d” with a real device

I am trying to install two node cluster for web server. We have super mico hardware HA BOX. It has 5 disk. one disk is used for node1 os installation and another disk is for node2 OS. Remaining disk ...
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47 views

receiving error message while trying to register for subscription for rhel6

I am trying to subscribe to redhat from the terminal. I have registered an account at https://access.redhat.com/labs/registrationassistant/ . So I am using those credentials to register my ...
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51 views

how to increase Stack Size of a running program in C

I am trying to identify any way if we can increase the stack size of my running program after getting SIGSEGV. I know we can increase the size of stack by ulimit -c but, that did not solve this ...
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15 views

Why my limit on CPU does not validate via cgroups

/etc/cgconfig.conf ... group memlimit { memory { memory.limit_in_bytes = 8589934592; } } group cpulimit { cpu { cpu.shares = 1024; } } /etc/cgrules.conf: ...
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65 views

Kill the process and restart server when memory is exceeded - bash and cron

I have a site on webfaction, using django and python. However, I have problem with memory. The problem arises, because I use external library, that can run forever (consuming much time and memory). ...
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28 views

Reshareing a Samba share

Thanks for looking at my question. I have 2 Networks on my firewall, 1 for the users and 1 for some servers. Now I have 1 server as sort of portal to some shares on other servers. the portal server ...
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16 views

Upgrading Portage?

I'm attempting to upgrade portage on my Chromium OS VM and I get a masking on the upgrade saying it's masked by EAPI 5 and that my current version is EAPI 4. In order to upgrade portage I need EAPI 5 ...
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21 views

Why I can not access the windows network shared folder from SUSE

All, Forgive me I am not familiar with the Linux. Currently I just set up a network shared folder in a windows machine. I can access it from another windows system. The path looks like \\10.50.90.18. ...
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24 views

High read/write system call time

I am facing a weird problem with one of process taking more processing time in one system comparing to other systems. Most of the time is spending on read and write system call on problem host. I am ...
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124 views

“Kernel panic – not syncing: VFS: Unable to mount root fs on unknown-block” and “LZMA data is corrupt”

I recently bought a new computer and I am experiencing problems while trying to install Linux. Things I have tried: A variety of distributions: Ubuntu; Elementary OS; Crunchbang++; Manjaro; and ...
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26 views

Moved CentOS VM From One Server To Another; Networking Issues

I was running a CentOS box on a VMware server and I had to move it off to another server. Since booting up on the new server, I have been experiencing networking issues. On boot, I receive the ...
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17 views

memtest86+ doesn't show up in grub

According to my package manager memtest is installed and both memtest68+.elf and memtest86+.bin are in my boot partition yet grub doesn't give me the option to boot to them. Is there anyway to add the ...
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41 views

Where am I supposed to put PyCharm files?

I've just downloaded PyCharm (pro) for Linux (I'm running Ubuntu). It's basically a zipped directory containing everything it needs to run (tree below), including an entry point (bin/pycharm.sh). ...
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64 views

Centos 7.1.1503 no longer has some static libs that python packages assume are present

I ran repoquery -ql readline-devel and it revealed that only various .so libs are a part of this repository. /usr/include/readline /usr/include/readline/chardefs.h /usr/include/readline/history.h ...
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30 views

2 X 2TB HD in RAID1 config, “Data volume failed to mount” error

I am using a Western Digital My Book Live Duo and for some reason it decided to go bad on me. The WD support people usual answer is that the device is bad and they even upgraded my warranty to get a ...
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18 views

How to remove previous version of centos7 and install fresh centos7 in Toshiba Satellite using bootable USB

My centos 7 has been corrupted. I want to install fresh centos7. When I run rpm -q kernel. It gives the following results kernel-3.10.0-123.el7.x86_64 kernel-3.10.0-123.20.1.el7.x86_64 ...
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22 views

OpenSuse does not show .eps files

I am running on this machine on a cluster: > lsb_release -r -i -c -d Distributor ID: openSUSE project Description: openSUSE 13.2 (Harlequin) (x86_64) Release: 13.2 Codename: Harlequin ...
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33 views

Assign IP to a device using BOOTP protocol?

I have a device that is BOOTP enabled, I want to assign an IP to this device on Linux. there are these tools that works perfectly ...
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84 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 ...
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9 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 ...
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25 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 ...