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

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How do I view multiple users groups using sssd?

SETUP OS = RHEL 6.4 Workstation System is part of an LDAP domain and was originally configured to authenticate using nscd. All recommended SSSD packages have been installed. ...
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I chowned / recursively. How can I restore default permissions? [duplicate]

In a completely boneheaded moment, I ran the following command: #chown -R user:usergroup . What I failed to realize is that I was in the root directory, not in my target directory. Now the entire ...
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53 views

Why did Red Hat drop support for DRBD beginning with RHEL 7?

Does anybody know the reasons why Red Hat decided to drop support for DRBD beginning with RHEL 7, thus favoring GlusterFS as the preferred solution for network-based replication / mirroring in a ...
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25 views

How can I lock screen and force re-login after a period of inactivity on different linux distros

I am writing a script to lock screen after a period of inactivity and ask for a password again on desktop activation for different distros of linux. I have achieved the same with the following ...
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separate the system & hardware clock in linux

I want to separate the system clock from the hardware clock which I synchronize first. But now I want to change both: hardware clock with the UTC time & system with the GPS time.
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Could a defunct Oracle backup script cause the database to be unavailable?

I have a backup script running on RHEL 6 backing up my Oracle environment that I found defunct this morning. I don't have any more information on the defunct process yet, but I might tomorrow morning ...
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45 views

How to install chrome on unregistered redhat

I can not install "Google Chrome" on my RedHat6 machine. I used the following command: yum -y install google-chrome-stable The following error occurs: This system is not registered to Red Hat ...
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30 views

What does the “-y” do in “yum -y groupinstall gnome”?

I've been googling and reading tutorials, but while the authors go into detail with all the things you can do with yum, no one ever mentions what the -y flag is for. I'm trying to automate this with ...
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23 views

Flush Postfix mail queue

I'm running an old version of Postix (1.1.7) on my Red Hat Linux and I wanted to flush the e-mails from a specific recipient with postsuper, which comes with the postfix-perl-scripts package. However, ...
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55 views

tcpdump - capture trace in both directions on RHEL6

I am using redhat bonding and have identified my active interface as eth5. I am using Redhat 6.5 Server Here is my command: tcpdump -i eth5 src host actual_ip_address_of_external_client after ...
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123 views

Yum Corrupted on RHEL 6

I really need help. I am encountering the issue with my yum command. It seems to be exactly the same as the issue described on this site, Yum corrupted on CentOS 6.2, Problem importing one the python ...
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53 views

Linux for real time production server [closed]

I would like to know a linux OS for a real time 24x7 running production server. I have heard that RHEL is pretty stable & suitable for this type of usage. Now I would like to know how it is ...
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12 views

How can I maximise Netbeans window from the terminal?

I am on CentOS 6 and using VNCViewer to remote in to a box which has four monitors. The problem is VNCViewer won't allow me to click on the Netbeans Window "Maximise" square, top-right, so I can ...
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77 views

How to set Timeout for an ssh command and also get back the result of remote commands

I have a script that runs on bash, in an RHEL server that connects to thousands of nodes and returns with the values of some 5 executed commands - It collects info from RHEL Servers only. It works ...
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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 ...
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91 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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24 views

Connect to Windows share from Red Hat machine via DNS name

We have a Windows share \\server1\share From a Red Hat machine, we can mount to the share without issue. We have setup a DNS pointer that points to server1 and is named production. From the Linux ...
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Why doesn't yum-builddep install all dependencies?

What worked for other packages, doesn't work for kernel. Why? First, sync: [git@dioptase SRPMS]$ ssh root@localhost yum-builddep /home/git/rpmbuild/SRPMS/kernel-2.6.32-431.el6.src.rpm Getting ...
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How could we allow non-root users to control a system.d service?

With sysvinit, a sudoers entry like this would suffice: %webteam cms051=/sbin/service httpd * This would allow for commands such as: sudo service httpd status sudo service httpd restart Now, ...
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41 views

Is anyone using Red Hat Enterprise Linux for Desktops or Workstations at home? [closed]

I consider using RHEL for my dissertation, on my Thinkpad T430. I've been using Linux (mostly Ubuntu, Debian) for the last decade but I'm curious about RHEL since it seems to be used a lot outside ...
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24 views

Failed login notification at login

I have seen it before when you log into a Linux box wrong, when you do successfully log on, it notifies you that someone attempted to log on as you and didn't succeed. How is this accomplished? I ...
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28 views

asking administrative permissions for remote console session while logging

Errot:to log on to this remote console session you must have administrative permissions on this computer. this error in specific Redhat system. from other systems its working.
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How to reset the Password for Web UI of Bacula

My colleague is on vacation and I need to configure bacula but I don't know the password for user. So I need to reset the password for user. What is the way to reset the password?
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214 views

Installing latest wireshark impossible?

It looks like installing a later version of wireshark is near impossible on redhat 6. I've searched the web extensively and can't find any questions where someone has said their issue was resolved. ...
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Any concerns with using high UID numbers (3000+) on RHEL5+?

The legacy systems has UID numbers up until the low 2000s. In implementing a new user management system, I am looking into options to avoid UID collisions. One option is to just have a list of UIDs ...
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why redhat repository still offers 2-years old boost?

I"ve installed RHEL 7.1 which was just released (several weeks ago). I wonder that it still offers boost 1.53 which was released more than 2 years ago http://www.boost.org/users/history/ yum list | ...
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XFS increase size

How to increase data size at the expense of the other disk. xfs_growfs without param [from,to] increase. /dev/sda8 45695376 36341884 9353492 80% /data Disk /dev/sda: 128 GB Disk /dev/sdb: ...
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36 views

Analyzing logs offsite, with a different computer

I have a computer deployed with no internet access. I have small windows in which to copy the log directory to a USB stick and analyze offsite. If I pull the logs off of a CentOS / RHEL system ...
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32-bit package from a repo that should only contain the 64 bit packages

Trying to a do install of some packages and it seems that it is trying to pull a 32-bit package from a 64-bit repo. Installing for dependencies: cyrus-sasl-lib i686 ...
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1answer
37 views

createrepo fails with headerRead failed message

I execute createrepo -v --update epel-dir/ and at package number 14173, the process fails with a Python stack trace complaining that: headerRead failed: Header sanity check: OK So, I thought ...
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80 views

Conflicting answers regarding package from rpm, yum and repoquery

I have a few packages on a RHEL 6.5 system which exhibit the following puzzling behavior: The package is installed; rpm -q reports the package as installed; yum search shows that the package is ...
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Connection issues with KVM on RHEL6.5 to Licence Server

I currently have a RedHat 6.5 kvm running under a RedHat 6.5 host. I am attempting to make a connection to a Rational Apex licence server on the local network, however the connection times out before ...
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65 views

What are gpg-pubkey* packages?

I compared the packages list reported by RPM and YUM on a CentOS 6 and 7. I noticed the lists were slightly different (same issue with RHEL). See Listing installed packages with yum and rpm mismatch ...
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35 views

How to resolve issue of misconfigured vnc server on centos 7

While configuring vncserver in centos 7,the < USER >field in the vnc file gave me quite a bit of thoughts.whether it was to be replaced with the login name for accessing the ssh or some other ...
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Is it possible to convert RHEL to CentOS?

The software vendor that we used has always specified that we should load RHEL on servers we've bought to run their software however they did start to accept CentOS and even now prefer it on new ...
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177 views

Parallelise rsync using GNU Parallel

I have been using a rsync script to synchronize data at one host with the data at another host. The data has numerous small-sized files that contribute to almost 1.2TB. In order to sync those files, ...
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21 views

Directory Server doing lookups on one ldap server and authintication on another ldap server

I have an old Centos Directory Server and a new 389 Directory Server. I don't want to use sssd at the moment so lets keep that suggestion off the table. I do the following my RHEL 6.4 servers: ...
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64 views

links are always NO-CARRIER, but expected to work

At some point I start receiving "NO-CARRIER" error message. What does it mean and how can I fix it? My links are "physically up" - green lights are blinking. On the opposite side link is up, but no ...
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74 views

Installing python library matplotlib on RedHat for second python installation

I can't seem to find documentation on this. Matplotlib says to run: sudo yum install python-matplotlib which installs all the dependancies and this version of matplotlib successfully: ...
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125 views

Redhat 7 DNS Bind Failed to restart

I am getting Error while Restarting the Named.service in Red-hat 7 Here is my Lab Status and all the Command. Configure DNS in REDHAT 7 DNS Name p1.linux.com IP address 192.168.1.1/24 N/W ID ...
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32 views

how to find which repo does one rpm package belong to

How to know which repo does one rpm package belong to? I searched the yum manual, and I didn't find the option. And it is useless to use yum list installed.
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What are the correct permissions for a non-root user in Red Hat 7?

I imported a pre-made Oracle Developer VM, from Oracle, into VirtualBox and the oracle user (which is not root), can't do anything without using sudo, for the most part. For example, any file I want ...
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36 views

How do I make something launch graphically as root without going to the command line and running sudo?

I can't save anything because of a Permission Denied error. Do I have to use sudo before I run any program, like sudo gedit? I can run Eclipse as root, but I am trying to see what the correct way to ...
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130 views

How to enable systemd user sessions for remote logins on CentOS 7?

I am trying to enable systemd user sessions on my CentOS 7 server. All the pieces seem to be there, and I have also run loginctl enable-linger <user>, but I don't have a systemd user session (or ...
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Can I capture reboot errors on a system that lives in memory?

I have a machine that will intermittently experience boot issues and the system will hang and won't come up. I would normally go to check dmesg, but the problem is the system lives in memory and gets ...
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Help filtering logs - auditd

System: RHEL release 6.3 (santiago) Issue: Once I start the audit service I'm starting to get thousands of logs in /var/log/audit/audit.log Most of the logs received are of - sshd Log sample: ...
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Red Hat Enterprise Linux 6.5 remounts root filesystem read-only after hibernating

I have a Lenovo ThinkPad T430 running Red Hat Enterprise Linux 6.5, kernel 2.6.32-431.30.1.el6.x86_64, and my filesystem structure consists of a master LUKS partition holding two logical volumes, one ...
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network.service - after executing “telinit” network interfaces doesn't start

When I start RHEL 7 everything is fine, my network functions, I can ping other PC's etc: [root@localhost]# service network status Configured devices: lo eno1 enp2s0f0Team enp2s0f1Team team0 team0.300 ...
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RHEL 5 box constantly displaying NIC statistics on console screen, how can I disable this?

I have a RHEL 5 box that is constantly displaying nic statistics on the console screen when using the KVM. This makes it very hard to do any troubleshooting when the box goes down as these statistics ...
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recommended storage location for multiple users [duplicate]

Is there a conventional location to store non-secret bulk files that can be accessible by multiple users? I know that I can create a new folder (and set the right permissions) in most places in the ...