Red Hat Enterprise Linux (RHEL) is a commercially supported Linux distribution.

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How to install RHEL 7 through pendrive?

I have 7gb RHEL 7 image file. I used UniBoot to make pendrive bootable. But when i try to install during startup of pc, grub screen comes every time. What to do??
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While executing vgdisplay gives below errors [on hold]

/dev/mapper/mpathcq: read failed after 0 of 4096 at 107374116864: Input/output error /dev/mapper/mpathcq: read failed after 0 of 4096 at 107374174208: Input/output error /dev/mapper/mpathcq: read ...
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15 views

How to Install or enable PHP-FTP support on Linux Apache server?

In my PHP code I am using the below function ftp_connect() But it throws an error, FTP is not enabled for PHP. Can any one tell me how to enable/install FTP in RHEL, Apache2.2 server,PHP Version ...
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17 views

How to use usermod login command?

When I try to use: [root@jack-dpp jack]# usermod --login jack-dpp jack I get: usermod: user jack is currently used by process 7622 In RHEL 6.6 how to kill all the process and run this command?
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23 views

Getting some unwanted message in linux os

When Linux (RHEL) OS is booted I am getting a message as beiscsi_ep_connect shost is null What does it mean?
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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 ...
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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 ...
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20 views

NFS Service not starting

I installed Redhat Hypervisors and i need to share ISOs but when i try to start the service it gives me this error WARNING: Could not open ...
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17 views

Can anyone tell me how to compile custom linux kernel? [duplicate]

I want to know the complete method of compiling of a linux custom kernel.
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2answers
47 views

how to untar file in linux red hat?

I am compiling linux red hat stable kernel on red hat linux and the error which I am facing is as below
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42 views

make: ***No rule to make target 'xconfig'. Stop. how to remove this error? [closed]

actually I am compiling my kernel and make command is not working completely so what should I do to make config file of newly kernel? this is happening
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36 views

Installing custom RPM says “does not update installed package”

I've inherited some servers which have previously always had its software as custom compiled versions (apache, perl, mod_perl etc). I was thinking than rather than compile every time, it may be better ...
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1answer
55 views

Using sudoedit in a script (non-interactively)

I'm looking to modify a file from a script. I can sudoedit the file as the bob user by doing sudoedit -u bob /foo/bar.conf but don't have rights to do anything else as bob. I came across ...
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30 views

Limit system processes using cgroups

My server runs several dozens of processes that are not in my control (mostly monitoring software). According to my application logs, sometimes some of the third party processes try to allocate too ...
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47 views

turn on numlock at login screen. GDM

GDM is turning off numlock key. I have tried following: a) installing numlockx and inserting following lines at /etc/gdm/Init/Default if [ -x /usr/bin/numlockx ]; then /usr/bin/numlockx on fi ...
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11 views

Input focus not following window clicks

I'm running RHEL 6.5 with a generic ATI HD5480 videocard and three monitors (one connected to each port... DVI, DisplayPort, and VGA), and I'm having issues with window-activation and input-focus that ...
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32 views

How to corrupt rpmdb?

Yes, You read it right i actually want to corrupt RPMDB for testing purpose. I tried Googling it but all i got was to, how to rebuild it. So at last i tried rpm --rebuilddb and killed the process ...
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17 views

RHEL6 Idle Thread Behavior

I am doing some cpu performance profiling with the perf tool on a RHEL6 box running weblogic12g. It looks like the idle threads are presented as native_safe_halt in the stack profile but ...
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20 views

Bind TomcatWebConnector to IP Address [closed]

I have a RedHat 5.6 server that has two NIC's (eth0/192.168.1.1 and eth1/192.168.1.2). I want to have two separate installs of geronimo using one specific NIC only. Install1 ...
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1answer
57 views

how to enable sudo for one directory

I have Redhat 6.3 and I want to enable sudo command for chown,kill and chmod, so under root user I did the following: visudo #add the following line aabuhasna ALL=(ALL) NOPASSWD: /usr/bin/kill, ...
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48 views

creating new filesystem?

Is it possible to create directory/filesystem that would be beyond unix-like filesystem ( I mean "/" ) so when I will use command pwd , its output would be "example_folder" not "/example_folder" . I ...
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23 views

kickstart does not chmod a file in %post section

I have the following code executed in the %post section of a kickstart file for RHEL 6.6. echo '#!/bin/sh' > /root/add_user echo 'if [ $# -lt 1 ]; then echo "no username provided"; exit 1; fi' ...
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20 views

upgrade glibc to 2.7 in Redhat 5

Is it a bad idea to upgrade glibc to 2.7 in Redhat linux? if yes, why is that?
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1answer
65 views

Systemd kills service immediately after start

I'm writing systemd unit file for OSSEC HIDS. Problem is that when systemd starts service it immediately stops them. When I use that ExecStart directive all working fine. ...
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2answers
77 views

Separate Network Traffic on Two Network Interfaces

I am not an R&S professional, so much of that realm of computing escapes me. Could you lend your expertise in helping understand how to go about configuring the separation of network traffic on ...
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1answer
29 views

MySQL: connection refused…coudn't find mysqld.service

I am trying to install MySQL onto a Fedora 14 VM. I successfully installed it using yum install mysql mysql-server after which I tried to start it with systemctl start mysqld.service which ...
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27 views

Why does my redhat 5.11 system have so many ext4-dio-unwrit processes?

I have a redhat 5.11 system running, and it looks like there are 32 of these processes. What are they, and why are there so many of them?
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1answer
53 views

How long will Redhat / CentOS support the init system

Now that systemd the preferred way to start system services in CentOS 7, can anyone tell me in which release the init system will be completely removed? i.e no support for init scripts whatsoever?
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27 views

Repo Management

I've been mirroring RedHat repos locally to maintain consistency among our infrastructure servers using the instructions located at: https://access.redhat.com/solutions/23016 My question is though, ...
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59 views

STDERR: yum-dump Repository Error: Cannot retrieve repository metadata (repomd.xml) for repository: epel. Please verify its path and try again

This have been a chronic issue with my servers. i use epel repo to install & upgrade nss package. But every frequently, i have this issue where it fails with the error. STDERR: yum-dump ...
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2answers
26 views

How to choose system user ID for custom packages (RedHat & compatible)?

How should I choose the proper uid (or gid) for system users being created in a custom .rpm package? The user will be used to run a daemon non-root. I think it's not acceptabe to let adduser choose ...
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21 views

Correctly closing multiple hop SSH tunnel

I want to tunnel VNC traffic to host2, which is only accessible from host1, whereas host1 is publicly accessible. I setup a multi-hop SSH tunnel as described in this question, using: ssh -L ...
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1answer
36 views

Use the -i option on ssh/scp

I would like to setup the ability to log into my redhat server by specifying the -i option on ssh or scp command line. I have followed the steps according to google but it doesn't appear to work. ...
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30 views

How to rebuild ISO removing file from its mounted image?

I built an ISO that contains, for example: Directory listing of / d--------- 0 0 0 2048 Mar 19 2015 [ 29 02] . d--------- 0 0 0 2048 Mar 19 2015 [ 29 ...
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1answer
55 views

How do I disable network interfaces from loading at boot without Network Manager?

The machine I'm using has 4 network interfaces, only one of which is currently being used (the other 3 are not plugged in at all). Currently when the machine is restarted it is delayed by a few ...
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1answer
30 views

Connecting a VT100 terminal to Redhat Linux

I have the following Linux box: Red Hat Enterprise Linux Server release 5.2 (Tikan ga) x86 I'm trying to connect to it, using a Mainframe integration product which supports only the VT100 protocol. ...
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1answer
26 views

Package file without .rpm or .tar.gz… What to do?

I'm busy installing ELK package on a few RHEL6 servers, but we have two mail servers which are still RHEL5 i386 servers. So I go to https://www.elastic.co/downloads/logstash and downloaded the Linux ...
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1answer
24 views

find returns weird file order on RHEL but not on OSX [duplicate]

When I enter find . -iname "[0-9]*.nii" on my OSX machine it returns: ./03_Rest_fcMRI/9793_01_03_1.nii ./04_VEMP/9793_01_04_1.nii ./04_VEMP/9793_01_04_2.nii ./05_Tapping/9793_01_05_1.nii ...
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Is there a method of installing debuginfo package without registering RHEL7?

My RHEL7 isn't registered just for test. Now I want to install python-debuginfo rpm package. But according to this, it seems that I can't install python-debuginfo rpm without registration. Is there a ...
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1answer
64 views

How configure properly vncserver in Red Hat Enterprise Linux Server release 6.5

I'm trying to start vncserver in a Red Hat Enterprise Linux Server release 6.5 with an user created for that, and when I type vncserver I got this: WARNING: The first attempt to start Xvnc failed, ...
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19 views

Cannot resize windows remoting-in through X11VNC?

As title says, I am remoting on to a Linux box (CentOS 6) using X11VNC. However, I cannot resize any windows manually by hovering over the frame, because the frame resize cursor does not appear. ...
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13 views

How to monitor the “raw” port of the bonded network in RedHat 4/5?

I currently having a bonded network labelled "bond0" consisting of two ethernet ports on the server. But the physical server is currently hosted on a offsite data centre, which i can't easily accesss. ...
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26 views

Updating SSL Certs for Katello Web UI

I have a katello server (specifically Satellite 6.0.8) already serving content to clients. It's not currently being used as a puppet master (yet). The problem is that it's still using the self-signed ...
2
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1answer
18 views

Can I use permissions or facls to limit the creation of files in a directory without limiting the creation of directories?

I have some directories with quite permissive permissions, which get cluttered up with files (scripts) created by lots of different users. I try to encourage people to create their own sub-directory ...
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3answers
2k views

What is the difference between these commands for bringing down a Linux server?

Reading "What is the difference between Halt and Shutdown commands?" , I generally have an idea what does the command shutdown does, with or without -h/-r options. The "halt" command performs ...
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1answer
52 views

Print file name,Modified Date and Size with Header

How do I print file size, file name and modified date with header.Till now I have come up with: find . -regex '.*\.csv' -execdir stat --printf '%n,%y,%s' {} \; How to add header and do not print ...
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47 views

RPM install add yum repository

Is it possible to add a yum repository as part of the Requires field on an RPM spec file? For instance: Requires: my_custom.repo, software.xyz (only available in my_custom.repo) If not what is the ...
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2answers
51 views

How can I bring up up a non-boot (ONBOOT=no) network interface with iproute2?

Have a network interface that does not come up on boot-up: [belminf@tito ~]$ grep ONBOOT /etc/sysconfig/network-scripts/ifcfg-enp0s3 ONBOOT=no I know I could do the following for DHCP: ...
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What font settings would Java Applications Use without Fontconfig?

I have a java application that looks fine without fontconfig installed, however, I need fontconfig as a dependency for a package, and when I install it my java app's fonts change drastically. My goal ...
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1answer
59 views

Dependencies problems installing VNC Server in Red Hat Enterprise Linux Server release 6.5

I'm triying to install VNC Server in a Red Hat Enterprise Linux Server release 6.5. I have the .rpm of VNC Server, but it has a depedency with xterm, which I have the .rpm too. Trying to install xterm ...