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

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How To Locate Dependencies Needed by RPM Packages

I am trying to deal with keeping our RHEL 5 server patched up, but also dealing with our security constraints. This particular server is not allowed to talk to the Internet. So yum isn't really an ...
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1answer
21 views

rsync --delete did not remove file in destination while with ssh

On my RHEL6 pair of servers, I tested the rsync from server-1 to Server-2 with SSH. Everything was good as expected. However, when I moved a file under A directory, A/x.file to B/ of /home/user on ...
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Rhel two node cluster

I just want to know the feasibility of rhel 6.4 two node active active cluster. Is it possible? If yes what are the possible challenges in setting it up?
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Installing .NET on RedHat

Microsoft just released their beta7 version of aspnet yesterday and I'm interested in installing this on a rhel release. I've been able to install it on ubuntu but the docs for rpm systems have not ...
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1answer
747 views

RedHat init.d script will not start with service after stop

I have the service script below, which calls a shell script. We changed something in the script When I run the shell script directly, everything works fine. When I restart the servER, everything works ...
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227 views

How to force rpm and yum to fail if a GPG signature is missing or cannot otherwise be verified?

How can I force rpm and yum to fail if a GPG signature is missing from a package or otherwise cannot be verified due to a missing key? For the example below, assume the RPM has been signed but the key ...
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1answer
1k views

Trouble installing lxml with custom install location for libxml2/libxslt

I am attempting to install a python module called lxml to my account on a supercomputer running RHEL. I do NOT have root access or super user status. lxml requires the dev/devel versions of libxml2 ...
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3answers
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How to fix boot failure due to incorrect fstab?

It seems that I have added incorrect record to /etc/fstab: //servername/share /mnt/share cifs defaults,username=myuser 0 0 When I did mount -a, it asked user password to mount network ...
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RHEL server Booting problem: "fsck.ext3: unable to resolve 'LABEL=/u01'

We had an old Linux server in the workplace for last few years, so I decided to turn it on and it's showing this problem during boot up: No devices found Setting up Logical Volume Management. ...
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18 views

Red Hat no package realmd available

I would like to use AD authentication with a RHEL server using realmd and SSSD. I tried installing realmd using yum install realmd but I get the following message: Loaded plugins: product-id, ...
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40 views

Disable VGA port via GRUB in Linux

I want to disable VGA port of my hardware by making changes in the GRUB. How can I do this? I am using Red Hat.
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How to use display in RedHat as I install linux in command mode without GNOME

I have installed RedHat on Oracle Virtual box in basic command mode.I don't want to install GNOME as it will take more RAM. I want to install oracle 11g on that so I need display. Then how can I see ...
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Automate DISA STIG controls for RHEL/CentOS?

I am deploying systems that must be configured using the Red Hat 6 (v1r2) Security Technical Implementation Guide(STIG) published by the Defense Information Systems Agency (DISA). Link to site. I've ...
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2answers
9k views

Why don't I get a Gnome GUI when I install Red Hat?

I'm trying to install Red Hat on my Windows system but Im facing a problem. I get only one option during installation which is "Minimal" and even if I check Gnome desktop in customize options, I only ...
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1answer
18 views

Use SSH on RedHat installed on Oracle Virtual box

I have installed Oracle Virtual Box and RedHat on it. Can I use SSH or PuTTy from my local PC (Windows 7) to access RedHat locally? If yes then what will I enter in field of Host name? And if no then ...
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1answer
22 views

Enabling FIPS on a luks encrypted CentOS system breaks boot password

For one of my apps I need to enable FIPS for OpenSSL, while simultaneously using software disk encryption. VM #1 I launched a CentOS VM instance which was software encrypted during install. The ...
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RedHat cluster with rgmanager or pacemaker as resource manager on Oracle VirtualBox

I'm learning RedHat cluster and I have setup a 3 node cluster (Centos 6.7), corosync, cman and rgmanager on Oracle VirtualBox version 5.x. The cluster is working fine (the clustat commmand shows that ...
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920 views

Installation of Pacemaker Corosync on RHEL Server 6.6

I was trying to install Corosync and Cman using yum install -y pacemaker cman pcs ccs resource-agents This works fine on CentOS 6.3. Tried the same on Redhat Enterprise Linux Server 6.6 and ran ...
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Maintain 32 and 64 bits version of rpm

let me explain this a little bit, I am in charge of update part of our company product from 32 to 64 bits. At the end, we should have a 64bits kernel + 32bits applications + some 64bits ...
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3answers
203 views

How to identify if a direcory is created by System or a root user?

How to identify if a directory is created by Linux system and by user like root. Example: in /etc there is a directory named sys which is created by Linux. And I logged in using root and created the ...
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1answer
19 views

RHEL6 No protocol specified, can't open display

I got this when I try to open nco_event in RHEL 6.3 [netcool@noi bin64]$ nco_event& [1] 19962 [netcool@noi bin64]$ No protocol specified Fatal Error: ...
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1answer
954 views

How do I resolve an error when booting, “Couldn't find device with UUID…”

I have a RHEL 6 system, running on a VMWare machine. The admin of the VM server added a second RAID volume to the server, which my RHEL system does not use. Now, when I boot the RHEL system, I get a ...
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Install a specific RHEL point release

Is there a way to effectively yum update to a specific point release in RHEL 5 and 6? When a new point release is rolled out, the powers that be in my organisation put it through acceptance testing, ...
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How to reduce buffers\cache

A monitoring system keeps alerting that my machine is reaching\breaking through it's RAM utilization threshold which is 15 GBs. I've done some reading and understood that the apparent RAM utilization ...
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1answer
60 views

RHEL6 + Error: xz compression not available

When installing packages via yum on a RHEL Server 6.6 system, I get the following error: $ sudo yum install foo Loaded plugins: product-id, rhnplugin, security, subscription-manager This system is ...
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1answer
29 views

usermod always reports user does not exist on RHEL 6.6

My RHEL 6.6 VM is running behind Centrify Active Directory. When I do sudo id 'any_existing_user' it will give back info about that user. But when I do sudo usermod -c 'Comments' ...
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1answer
585 views

GDM will not start on boot, unable to login into graphical interface

I am running RHEL 5.8 . SELinux is enabled but in permissive mode. Here are some snippets from /var/log/messages on boot. kernel: type=1400 audit(1360613500.551:6): avc: denied { write } for ...
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Why SSH takes a long time to Connect

I have noticed that some Linux Servers in Network takes long time to connect using ssh. Situations: There are two situations I have faced: On some servers some times it takes a long time to ask ...
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1answer
48 views

NFS change ownership issue

We are accessing NFS mounts across three hosts. The issue for us is that when we change the ownership of a directory on NFS mount on the server, the ownership changes are not taking place on the ...
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Open a RPM on a Mac?

I am on a MacBook Pro running Apple Leopard (Mac OS X 10.5.8). I would like to unpackage a RPM and view the files contained within the wget-1.11.4-2.el5_4.1.src.rpm . I don't need to install the ...
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1answer
46 views

How to make boot output verbose?

I use to enjoy watching my red hat then debian then ubuntu machine boot, the boot process was not hidden from my view, now it is, in most of all distros, now, I know I can somehow connect a terminal ...
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Can I make sure history logs all execution?

Please forgive the ambiguous nature of this question but I was wondering if there's a way to make sure that all commands executed by some host are logged into history. In my case, if I send a command ...
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378 views

Is there any sound enhancer/equalizer for Linuxes that are not Ubuntu?

I am looking for a systemwide audio equalizer for Debian, Gentoo or Red Hat Enterprise Linux, i.e. an audio equalizer that filters the entire signal that is sent to the audio chipset, something ...
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How to boot Linux to command-line mode instead of GUI?

I am using 32-bit Red Hat Linux in my VM. I want to boot it to command-line mode, not to GUI mode. I know that from there I can switch to GUI mode using startx command. How do I switch back to ...
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2answers
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How do I turn a local yum repository into a local satellite for many other repositories

I am not sure I am asking this question in the best way. I am doing my best to ask it in the clearest way possible. I would like to build a local (to my cluster) yum repository server such that I ...
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2answers
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obsoleted package breaks yum install of older JBoss

I need to install an older version of JBoss. 6.1.0 EAP is what has been approved and supported for my application. So when I try to force install the correct version of the jbossas packages the ...
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1answer
962 views

Unable to add eth0 in Rhel 7

I am unable to find eth0 in RHEL 7 after just installation. Even I created the eth0 inside the /etc/sysconfig/network-scripts/ directory. After created eth0 inside the network-scripts, I am unable to ...
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2answers
840 views

Authconfig contiously rewriting the /etc/sysconfig/authconfig file, messing up Puppet run

I have been using this LDAP module for a long time in my Puppet environment. The module uploads these files to the RHEL-servers: /etc/openldap/openldap.conf /etc/pam_ldap.conf /etc/nsswitch.conf ...
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1answer
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Make one VNC server appear as two displays in RHEL

I have a VNC server running in virtual mode in RHEL and I am viewing it on a PC which has two screens. I can make the server use both of my screens by setting the resolution large enough: xrandr -s ...
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2answers
62 views

is a script, program being run under current shell or child shell?

I am confused with regards to the following - if i execute a script or run a program in the current shell by typing on its name 1st) it search in the $PATH variable, to find the location of the ...
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How do I add modules, binaries or scripts to initramfs in RHEL distributions?

I have an initramfs script I developed for Debian distributions that required some extra binaries to be loaded into the image. I'm now trying to port this to RHEL distributions and I'm struggling. To ...
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1answer
47 views

RHEL 6.6 Cluster - Waiting for Quorum Timed-out

I'm trying to set up RHEL Cluster. Everything is fine (well, not at all). I'm using 2 nodes, and 1 quorum (LUN). When I start both cman services at the same time, it's fine. Cluster is up, every ...
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What are the steps to migrate from GRUB to GRUB2?

I have a fresh installation of Scientific Linux6/RHEL6/CentOS6: I have /boot with boot loader and / with all else (which are sda1 and sda2 partitions of one hard drive, on a fresh, real system). I ...
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2answers
16k views

Movie Player requires additional plugins to decode this file

I'm using RHEL 6 .Newbie to Linux. I'm unable to play the video using Movie Player. It shows an error, Movie Player requires additional plugins to decode this file. The following plugins are required ...
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3answers
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Installing Postfix conflicts with MySQL-server package

I had to install MySQL Server community on our server (team lead did not want MariaDB due to support or something). Therefor I removed MariaDB which in turn also removed Postfix. Now I need to ...
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1answer
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What are the values for VLAN_NAME_TYPE when setting up a VLAN interface on Linux

When creating network interface files in /etc/sysconfig/networ-scripts/ on RHEL/CentOS servers, what are the different values for VLAN_NAME_TYPE and what do they mean?
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use custom intltool installed in home directory?

OK, I would never do this on a system that I was running, but I'm having to build on a server that I don't administer. To test out how to do I have a "dummy" project that I'm trying to build on the ...
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Tomcat 7 not producing log output to catalina.out on RHEL7

I have a RHEL7 server with Apache Tomcat 7.0 installed and after a recent update to RHEL7.1 all of the logging to ${catalina.base}/logs/catalina.out was stopped. However i am receiving the logs inside ...
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1answer
1k views

Init script to run a script as specific user

/apps/data/service/bin/startup.sh This is the script i want to be executed during RHEL booting. I want it to be run in runlevel 3 only. And i want this script to be started as specific user, ...
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1answer
94 views

yum-builddep building the dependencies from source

My current way of building packages from srpm: cd ~/rpmbuild/SRPMS yumdownloader --source $p sudo yum-builddep *.src.rpm if some build deps not found, repeat the above steps for each of them ...