Red Hat Enterprise Linux (RHEL) is a Linux distribution from Red Hat intended for enterprise use.

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Disabling NetworkManager on RHEL 7

I was setting up a RHEL7 server in vmware vSphere and I'm having trouble getting it on the network without NetworkManager. I configured the server to have a static IP during the install process and it ...
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0answers
9 views

declare -A on RHEL 5

I am using an associative array on my RHEL 6 servers and I just tested the script on a RHEL 5 server and apparently -A is not supported for the declare command on RHEL 5: declare -A var -bash: ...
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4 views

How can I specify what directories my overlay uses on a liveusb?

I'm using a Red Hat system (4.4.7-3) to generate a CentOS live USB/CD. I have figured out how to create an overlay as well as a home overlay; however, I cannot seem to grasp how to change the ...
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11 views

How to disable Ctrl+Shift+U in RHEL?

When working with Eclipse some shortcuts are not working as under Windows. Most prominently, Ctrl+Shift+U (which lists all references to the variable under the cursor within the same file, very ...
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1answer
19 views

How do I upgrade my version of tar on Red Hat 5?

I'm running RHEL 5 and the default version of tar is horribly old. yum update tar shows that I have the latest version according to their repo. How do I go about upgrading to tar 1.27, please?
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46 views

Intel Xeon stuck at 800mhz CPU Freq on RHEL 6.5

Currently running into a headache trying to figure out why my CPU speed is stuck as such a low frequency. After doing some research, I found that cpuspeedutil does actually control the state of the ...
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1answer
16 views

fdisk overwriting sector 0 problems

I'm having an issue with my usb 3.0 external hard drive when I try to use the fdisk command to make an ext4 partition. It's encrypted and I've been told that modifying sector 0 of the drive overwrites ...
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1answer
17 views

Package compatibility

I have a home server running Oracle Linux 6, which is very similar to Red Hat and runs a RHEL compatible kernel. My question is, to what extent would packages originally made for other rpm-based ...
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0answers
64 views

install latest gcc on rhel 6 x86_64

I have an RHEL 6 server with gcc version 4.4.7. I wanted to update the gcc version (I think the current one is 4.8). Yum update doesn't work. Also, SO answers for a similar question on CentOS does not ...
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1answer
34 views

RHEL linux version dependant mounting if elif else

I am trying to mount as below, where the mount point is version dependant: 1) Find if any of the below 2 are mounted. 2) Find RHEL version, then mount one of the below mount -o soft ...
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1answer
65 views

How do you link ldap users with svn?

I need to sync ldap users with the svn service configured on the RHEL 6.2 server I am using. Additionnaly it would be cool to be abble to control who can commit. The ldap is working and users and ...
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1answer
115 views

What does NOEXEC flag mean when mounting directories on RHEL?

I am trying to understand the NOEXEC flag when mounting. I am having an execution issue within the /tmp directory on someone elses machine that I cannot access atm where the /tmp directory is mounted ...
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1answer
48 views

Which virtualization software like vmware but open source can be installed on directly onbare metal?

Which virtualization software like vmware but open source can be installed directly on bare metal? Is it possible with oVirt?
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29 views

stop user from being runing any commands, should able to run only granted with sudo

Is there any single command or script which gives result, the list of how many commands a linux user is able to execute? And how to stop user from executing even a linux basic commands and should not ...
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1answer
66 views

How to install relatively current Git package on RHEL

I'm stuck on a RHEL6 (6.1) server (x64) behind firewall, and without gcc, thus cannot use rpmforge, nor build from source. I guess I can download the rpm files manually from my laptop then scp to the ...
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1answer
97 views

Comparison between Oracle RAC Cluster Database (10gR2, 11gR2 and 12cR1) and deployed Oracle DB on Linux Cluster [closed]

Oracle RAC implementation may be costly for small enterprise, but how it would be if Linux cluster is implemented and then standard Oracle DB is deployed on that cluster to achieve availability like ...
1
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1answer
52 views

How do I restart a service at every reboot?

As a result of a bug in mcollective [1], I need to restart the service immediately after each boot. What is the best way to accomplish this? [1] https://bugzilla.redhat.com/show_bug.cgi?id=906885
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0answers
26 views

Difference between Virtual Console and Workspace?

Please explain all differences between Virtual console and Workspace in Linux. If possible also kindly requested to specify definition and/or example. Many thanks.
1
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1answer
56 views

How to find available man chapter/section for a particular command? [duplicate]

For example: ls command have only chapter 1. while mkdir command have chapter 1 & 2. Is there any command which shows how many chapters are available for a particular command? [root@localhost /]# ...
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0answers
17 views

Difference between ntsysv and system-config-services

Please someone can guide the difference between: # ntsysv # system-config-services ntsysv - tune services should be automatically started, is it similar to chkconfig?
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3answers
41 views

Difference between service off and service stop?

Please can someone explain differences between service stop and service off: for example: # service httpd off # chkconfig httpd off
2
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4answers
131 views

/etc/rc.d what does rc stand for? [duplicate]

Do anybody have idea about full form of rc.d at? /etc/rc.d It contain scripts to is used to control the starting, stopping and restarting of daemons. But what exactly meaning of rc here, do ...
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0answers
60 views

Getting per user cpu and memory consumption statistics

Is there a way to get cpu and memory consumption statistics summaries per user the same way prstat -t on Solaris shows them? The prstat(1) utility in Solaris display has fields NPROC UserName SWAP ...
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64 views

Supporting PCI-E X1 network cards by CentOS(RHEL)

Help me please I want to know it becase my windows 7 cant see my PCI-working network card and I dont want to buy a motherboard and then find that CentOS does not support PCI-E X1 network card. I want ...
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2answers
77 views

Unix - Prevent files with specific name from being in a directory

I need to prevent users from accidentally copy/move files with a certain names into a specific directory. Is it possible ? I need to set something in directory /home/similar2 that will reject any ...
1
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1answer
544 views

Bridged adapter in Virtual Box - cannot obtain IP

I have virtual box with RHEL installed. My virtual box is running on windows 7 64 -bit. I configured bridged connection, but when I am restarting network interfaces, I receive following error: ...
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27 views

where does openshift log when “unable to create gear on node”?

I'm trying to create a new application and I get an error when using the command line (rhc app create -a firstphp -t php-5.3) and when using the console through the browser. I didn't find any useful ...
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2answers
40 views

Grep with ERE doesn't filter lines with -v option

I'm trying to use the extended regex option in grep to filter out from files, lines that have the following format of string at the beginning of the line. any-non-space-char: * I'd assumed ...
2
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3answers
382 views

Winbind group lookup painfully slow

I am running winbind on an RHEL 6 system. Everything works fine except group lookups, so many commands (including sudo) are painfully slow. I did an strace which shows that winbind looks up every ...
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0answers
22 views

How to install tomcat-native without need to install development utils

I am using tomcat on a RHEL machine. When starting tomcat, i get the following warning: INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments ...
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1answer
574 views

Does docker support CentOS/RHEL now? (after 0.7 release)

As this post (http://blog.docker.io/2013/11/docker-0-7-docker-now-runs-on-any-linux-distribution/) claims that docker now have "Standard Linux support" including RHEL, but in the documents ...
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0answers
29 views

How can I prevent my USB mouse to interfere with standby, on Linux?

I am using RHEL workstation. My USB mouse interferes with standby - if I press the sleep button, the computer tries to standby, but instantly wakes up. If I remove the USB mouse, standby works. ...
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0answers
100 views

SSH Gnome Terminal Background/Foreground Colors

How can I automatically change the background/foreground color of my terminal based on the host that I SSH into? My current setup is an Ubuntu desktop running Gnome-Terminal that SSHs into a set of ...
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80 views

Can I enable discards on a LUKS-encrypted ssd drive in RHEL6 (and do I need to)?

I have a RHEL 6.4 workstation, running on a LUKS-encrypted LV residing on a SSD. I found RedHat documentation stating that dm_crypt does not currently support TRIM passthrough, however I also found ...
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1answer
811 views

vmdk file too large but guest os is small

I'm facing a strange issue with my virtual machine. I have an rhel 6.1 guest os running on VMware workstation (9.0.2 build-1031769) hosted on Windows 7 Enterprise 64 bit. The size of the vmdk file is ...
2
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1answer
750 views

Installing openssl on RHEL 6.2

Trying to install openssl-devel on RHEL 6.2. yum install openssl-devel And i am getting this error: --> Finished Dependency Resolution Error: Package: glibc-2.12-1.47.el6.i686 (rhel62) ...
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1answer
704 views

How to use NFS mounted storage as particular user

I have a NFS storage where I want to create and modify files from my local machine. On that NFS server there is a user with a group. But when I write a file from some local application to that ...
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1answer
160 views

RHEL6 boot.log is GBs in size

I am a novice linux user and I have inherited a RHEL6 server that is acting as a syslog-ng server. My problem is the boot.log is growing leaps and bounds from what appear to be the entries for the ...
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247 views

How to Enable the Desktop Screen Sharing with OpenFire

I installed the Latest build of OpenFire on Redhat 5.9. And installed the RedFire and Jitsi Video Bridge for Video Conferencing. But is there a way to do the Remote Desktop Sharing using Openfire. ...
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5 views

add to sudoers from java code [duplicate]

I need to add redirection rule in iptables from my java code. I am doing it using "sudo" on Ubuntu and it works fine over there. But on RHEL, it gives error of "user not in sudoers". I know my user is ...
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1answer
549 views

Ping retrieves an IP from DNS, but loses all packets

I'm working with a minimal installation of RHEL 6. When I first turned this machine on, it couldn't ping anybody. It turned out that I needed to add the GATEWAY under /etc/sysconfig/networking and ...
1
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1answer
191 views

Use 'find' to find and delete large files of a certain type

I am trying to find and rm -rf large files in RHEL, but what I would expect from this command that would give me purely the file directories, feeding them into rm -rf, it is not removing them. My FU ...
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0answers
155 views

Need noacpi in CentOS 6.4, not in RHEL 6.4

I've been trying to fix a rather odd problem that I've seen on our new Dell R5500 (Xeon based workstations). We want to run CentOS 6.4 64 bit on them. We did a base install which worked fine, however ...
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0answers
267 views

Adding a disk to an Amazon EC2 instance

I am using Amazon EC2 instance where I have low disk space [root@ip-10-59-143-73 ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/xvde1 5.7G 3.3G 2.3G 60% / none ...
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0answers
132 views

crash shell: any way to check if a command executed Successfully

I am automating a test using crash package. is there some thing like $? in bash shell, which can be used to check if previous command is executed success fully or not. eg : when command crash> ...
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0answers
343 views

Red Hat Enterprise Linux Qt 4.7.0 install error

I'm running a virtual machine, using VMWare Player, running Red Hat Enterprise Linux Workstation 6.4 x86_64 and I'm trying to install Qt 4.7.0 from the qt-everywhere-opensource-src-4.7.0.tar.gz file ...
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1answer
229 views

IBM SDK policy files

We installed IBM websphere on a RHEL 6 server, and it came with its own version of java. However, the encryption module on the box doesn't work, because it complains about : ...
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1answer
1k views

Network connection failed :unknown reason:

Im on RHEL, and found that my VPN stopped working. I discovered that I could use the command line utility, nmcli, to try to get more info about what was happening. However, Im finding that the ...
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3answers
8k views

RHEL6 NO Longer Supported by Google Chrome, Is there a way around it?

I'm getting an error while trying to update my Google Chrome in RHEL6. [alexus@wcmisdlin02 ~]$ sudo yum update [sudo] password for alexus: Loaded plugins: refresh-packagekit, security Setting up ...
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0answers
163 views

MongoDB PHP driver installation issue in Red Hat Linux

My server OS is Red Hat Linux. I installed MongoDB 2.2.3 successfully on my server, following this tutorial. I also tried following these instructions for installing the PHP driver for MongoDB, but ...