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

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`yumdownloader --source` can't find srpm on rhel 6.5

yumdownloader --source prints either No Match for argument or No source RPM found. Switching "Enabled" "1" or "0" has no effect. [vboxuser@okdemohost ~]$ yumdownloader --source gcc Loaded plugins: ...
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18 views

Unable to trap “CTRL+C” within kickstart “%pre” bash script

I'm using an interactive pre-installation bash script in a CentOS-7 kickstart image. I was trying to use "trap" to catch user ctrl+c (SIGINT) and run some code as follows: trap_ctrl_c() { #Some ...
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18 views

Deleting symlinks of Firefox in Linux RedHat

I have played with symlinks and caused bunch of broken links. Now when (using GUI) I click on the firefox icon, it errors that "too many symlinks" exist. How should I clean those links? because I ...
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6 views

Installing xcache-admin after easyapache configuration(issues) RHEL6

I configured my server with easyapache with setups up XCACHE for me. The issue is it doesnt include xcache admin and I need that to use our platform. When I try and YUM the package from EPEL, It tells ...
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4answers
50 views

Cannot use “firefox” command to run latest firefox

I have download firefox version 34 from Mozilla website. Next, I extracted the tar archive, and moved it to the Desktop. Now, when I run the following command: Desktop/firefox/firefox the version ...
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1answer
25 views

dhcp without dns: ping `hostname` not working. Auto add hostname to /etc/hosts?

On RHEL 6.5 how to make my own hostname locally resolvable, if my ip address is dynamic and not registered in DNS? I know, it's possible to add dhcp hook scripts. Is there a similar way to hook the ...
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136 views

Dropbox doesn't work on scientific linux

Installed dropbox on scientific linux (command line only) several months ago and it has been working fine. I installed it for one user, and I control it using the CLI dropbox.py. Recently I ...
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31 views

Utility to list and modify kernel modules loaded at system startup

How do I list all kernel modules loaded while system startup? Is there a user space utility to list and modify the modules loaded during system startup? I am working on RHEL6 Desktop and RHEL6 ...
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13 views

Error occuring resgiter the Redhat 6.4?

I'm trying to register the Redhat from RHN Registration. This report the bug There was an error while populating the profile This error shouldn't have happened. If you'd like to help us improve this ...
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8 views

Automated STIG implementation on CentOS7

As someone new to STIG who has done a lot of reading, I'm looking for options on automated STIG implementation on CentOS7. Specifically, I'd like a package similar to the stig-fix-el6 package. My ...
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1answer
9 views

firstboot starts Xorg with wrong command line

After installinx nx server, gnome and setting run level 5 in inittab, nx can't connect to X server, but after killing Xorg it can. Looks like I have to accept the license to get rid of firstboot, but ...
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14 views

Can't modify or delete SELinux user

I was playing around with user_u in the targeted policy on RHEL 6.5. I'm logged in as root in the unconfined context, so I have full ability to change anything I want. I've also switched to ...
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1answer
38 views

Where are the systemd configuration Files?

How do I enable particular units in particular targets? Once enabled, where is the configuration stored?
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56 views

Using a VPN client as a VPN gateway

I would like host 1 to use host 2 as a gateway to the remote host 3. I have scoured the web looking for a solution, but it doesn't seem to work for me. VPN client software is ike (shrewSoft VPN) is ...
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18 views

What can cause a file reset operation to crash?

We have a dll (Delphi/Kylix) that crashes the program that has loaded it just after we do a reset on a file. This fails after thousands of operations that do the exact same thing (this was run in a ...
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17 views

Why does saving a KVM-QEMU VM requires additional memory?

I have three VMs running on Red Hat Enterprise Linux with 8 GB RAM, each of the VMs has 3 GB allocated, and I also run a 512 MB VM. If we also consider the guest OS's memory usage (usually 1.5 GB due ...
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1answer
13 views

Fedora / RHEL association list?

My Google-fu is failing me! Does a list exist publicly that identifies which Major (Minor?) versions of Red Hat Enterprise Linux are spun from which Fedora versions? Does Red Hat even release that ...
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1answer
61 views

Start Application on Start up

I am currently using RHEL 7.0 for our project. I have an embeded application which I want to run on boot up. I have an exe file for the same. I have tried using the systemctl command but it has not ...
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16 views

How to set one job to run at precise time with anacron without losing config at next upgrade?

I want logrotate to run at a precise time daily. Currently it is set to run at some random time using anacron and I don't want to change the randomness factor for all the other jobs. I have ...
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1answer
38 views

rhel 6.5 yum update error

#yum update ^[[3~Loaded plugins: product-id, security, subscription-manager This system is not registered to Red Hat Subscription Management. You can use su ...
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2answers
48 views

bash NOT reading .bashrc on RHEL 6

machine A --RHEL 7 and updated. machine B -- RHEL 6 and updated. If I do this on A (RHEL 7) ssh B I get in, like I should, but my .bashrc has NOT been run. This is new behavior to me. I want ...
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1answer
25 views

SIGTERM not working occasionally

We use the regular /etc/init.d/jboss stop to stop the jboss on our machines. But at times, it does not stop the process and we get what is pasted below. When this happens we kill the process with a ...
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1answer
165 views

How to run a cron job to execute every minute?

I am trying to create a directory having timestamp in its in name in /home directory. I have created following cron job as root user. But it's not running. What's wrong I am doing? Following is my ...
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1answer
30 views

Is it possible to mount two different external nfs filesystems into 2 directories with the same radix (overlapping)?

I'd like to know if it is possible to mount two different external filesystems via nfs into two directories that overlap. Do the overlaping directories cause any issues? /usr/proj/projectA ...
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1answer
9 views

How change server and repositories setting after red hat was installed?

During install Red Hat 6.5 x64 it asks about server type and repositories to select. Is it possible (and safe) to change these settings later via command console?
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22 views

Is it possible whole Partition with same structure in Linux

Well one of my colleague installed fresh OS Redhat 6 on already in use test server. Now we got in trouble and needed to recover whole partition which is already formatted during new installation. Is ...
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1answer
16 views

Confusion regarding generating self signed certificate for application portal developed using liferay

We have a Application Portal developed using Liferay bundled with tomcat. There are two application servers running liferay and we use httpd as a front-end which forwards requests to application ...
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21 views

Creating Self signed certificate for tomcat 6

I am trying to configure self signed certificate for our tomcat server. For that initially I created the keystore certificate file using keytool . The command I tried for this is keytool -genkey ...
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3answers
1k views

How can I shutdown a RHEL server at 06:45 tomorrow morning?

I just received notification that our site has a power outage tomorrow morning. I am a Windows admin but I have to cover for our Linux admin who's not around until tomorrow evening. I need to ...
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3answers
30 views

ps to show only processes that match more than one condition (AND)

According to the ps man page: Except as described below, process selection options are additive. The default selection is discarded, and then the selected processes are added to the set of ...
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2answers
89 views

Forward port 22 out a particular interface

The situation I'm in is where we have three separate interfaces on a particular machine. Each connected network only allows servers (by network-based routing/firewalling) to only offer particular ...
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0answers
79 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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32 views

Cannot type in login credentials in Red Hat

Got stuck at the login window (Red Hat 6.5) as I cannot type in the login ID. No characters are accepted in the box. MouseOK. Any ideas?
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23 views

Adding routes for configured virtual IP addresses of different segments

I have configured virtual IP addresses in different segments as below in RHEL box. eth0 - 192.X.X.208/27 eth0:1 - 192.X.X.219/27 eth0:2 - 10.72.X.19/24 eth0:3- 10.72.X.20/24 The problem here is as ...
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1answer
34 views

screen command cannot find java executable

I'm trying to execute java from screen: screen -S my-java-app -d -m 'java -jar -Xms512m -Xmx2048m my-java-app.jar' but seems that screen does not know the java command. Running java without screen ...
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2answers
30 views

xfs maintenance mode in redhat 7

In my desktop I installed redhat 7 and after reboot it went to maintenance mode, After entering the password it is not allowing to do a file system scan for root and every time it boots enters to ...
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1answer
39 views

Where can I download the software RPM for Redhat?

I try to download some software RPMs(such as gcc, gdb, etc.) for Redhat enterprise version. But after googling, I only find this website:https://access.redhat.com/downloads. This site doesn't seem to ...
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154 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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2answers
104 views

Can't start systemd user instance

I'm using CentOS 7, and am trying to create a systemd service for my local user. However, before I can do that, I need my systemd user instance, which I cannot find or create to begin with. Running ...
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29 views

Utilizing Samba Shares Without using Winbind

I am curious if it is possible to use samba shares without using winbind. In our current environment we are using SSSD, Kerberos, and Samba to complete the required tasks such as joining the windows ...
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1answer
22 views

yum groupremove 'Development Tools': keep packages required by other packages

I did: yum groupinstall 'Development Tools' Now I want to remove it: yum groupremove 'Development Tools' But it marks for deletion many other packages that require binutils. How to keep binutils? ...
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21 views

unable to update HTTPD, mod_jk dependency error

While trying to update httpd in RHEL6, getting some dependency error as below: Unsatisfied dependencies for mod_jk-ap20-1.2.31-1.x86_64: httpd = 2.2.3 is needed by mod_jk-ap20-1.2.31-1.x86_64 I am ...
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2answers
58 views

how to test if can connect to port in rhel 7 (telnet client?)

On my local machine some network application is launched on port 3333 and I want to check that it "accepts connections". In this case in Windows I just type telnet to launch telnet client, and then o ...
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2answers
144 views

What is the correct way to resolve this rpm conflict? (Error: p11-kit-trust conflicts with nss-3.13.3-6.el6.x86_64)

It has been a while since I updated one of my RHEL6 machines (except for the occasional update of specific packages with known vulnerabilities). As a result of this, I have an old ca-certificates ...
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1answer
23 views

How do I make my boot.log more verbose?

I am trying to resolve an issue about our /etc/resolv.conf getting reset to old values or getting empty. I see a function defined in /etc/sysconfig/network-scripts/network-functions that could be ...
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1answer
158 views

Disable daylight saving time

Using C functions (time and localtime) I am getting: timezone:18000 daylight:1 means :dl timezone -24 (-360 minutes) GMT. We do not want to add the daylight and keep using GMT -5 and not GMT ...
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1answer
43 views

Frequently Internet Disconnects

I have installed RHEL 5.8 on IMB server. Also I have configured static IP through eth0. When I try to ping any website e.g. google.com, yahoo.com It works only for 25-40 seconds and internet ...
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19 views

Always try to stop daemon on shutdown without a lock file in /var/lock/subsys/

Normally, if a lockfile doesn't exist in /var/lock/subsys/, rhel doesn't try to stop the daemon, even though a link exists: /etc/rc0.d/K??svcname. There're daemons that are not always started by ...
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1answer
366 views

BOOTPROTO=none | static | dhcp and /etc/resolv.conf

What does it mean when it says BOOTPROTO=none in the /etc/sysconfig/network-scripts/ifcfg-eth0 file. I remember there used to be BOOTPROTO=static and it was very clear and straight-forward in telling ...
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84 views

Unable to start network, <IP> is already in use for device eth0, but its not

A wierd issue after we migrated some of our servers to a new DC. We assigned new IPs to all the machines and all the servers are working fine except one. It is not picking up the new IP address and ...