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

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Link issues with fiber card under RHEL 6.2 and hp dl380

I am having issues getting a HP ProLiant DL380p Gen8 running RHEL 2.6.32-504.el6.x86_64 to see and/or allow the use of a 10GE fiber card. I can confirm the fiber connection to the router has been ...
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1answer
871 views

RHEL6: repo won't enable

Mount DVD [root@rhel66 ~]# mount /dev/sr0 /media Install the repo metadata [root@rhel66 ~]# cp /media/media.repo /etc/yum.repos.d/rhel6.repo List the repos [root@rhel66 ~]# yum repolist all ...
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1answer
1k views

How to add a compiled ntpd in services on linux?

I compiled and installed ntp-4.2.8 using this link and created a rpm by running checkinstall on RHEL 6.5. I used the command ntpd -l logs to manually start ntpd. After starting I am able to verify ...
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1answer
394 views

No ntp.conf file after compiling ntp on Linux

I'm using RHEL 6.5. I compiled ntp-4.2.8 using the steps on this link. but I don't have a ntp.conf file. ntp.conf is required to start ntpd but after compiling, there is no ntp.conf on my system. I ...
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1answer
8k views

How to resolve rpm dependencies

I am trying to install libtirpc on RHEL 6.5 but it fails and asks for dependencies. Why here it is showing three GLIBC versions 2.14, 2.15 and 2.16. ?? Does it mean that any of these three versions ...
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1answer
1k views

CentOS 7 can't ping from server

I'm having a Strange issue with CentOS 7. I have my server setup with 2 NICs a private network and a public network. I'm able to ping the server on both the private and public IP. But I cannot ping ...
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4answers
2k views

How do I upgrade scientific Linux 6.3 to 6.6

Upgrading Scientific Linux 6.3 to 6.6 I have to update machines of SL6.3 to 6.6. I tried #yum list updates and .# yum update It downloaded some files and installed . But my SL is still showing SL6.3 ...
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2answers
393 views

How to create a bootable usb stick for ubuntu on RHEL 6

NOTE: this question was asked in askubuntu, and I was suggested to ask here. I want to create a bootable usb stick for installing ubuntu 14.04 on my laptop. Currently I have access to an RHEL 6 ...
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0answers
33 views

CentOS 6 with User Permission (Read at message)

I have create users on CentOS 6 between test1 and test2 so I login on user test1 on ssh and i tried to access home dir of test2 so why it can access? how i can setting for other users can't access ...
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2answers
2k views

How do I enable/set multicast rules using firewalld in RHEL7 / CentOS 7

I cannot find docs on how to enable multicast for firewalld which is the default firewall in RHEL / CentOS 7. Can some enlighten me? FYI: I know how to do it using iptables.
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2answers
847 views

What is the purpose of the `daemon` group and user on RHEL/CentOS Linux?

I am on CentOS 6.5 and about to add a service to the system with chkconfig. It will run with its own system account, let's call it (the account) foobar, but I do not see the point of also creating the ...
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0answers
75 views

Installing Nvidia drivers on Red Hat

I wanted to install Nvidia drivers. Can you tell me why the following is not working : [root@INEICP-EPM-W134 Downloads]# rpm -Uvh XFree86-4.3.0-35.EL.src.rpm warning: XFree86-4.3.0-35.EL.src.rpm: ...
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0answers
56 views

how to verify linux server security vulnerability?

I'd just install RHEL7, how do i certify that my server is free from vulnerability, virus or malware?, is the any tools or script that i can use to verify it? tq regards adabi
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1answer
374 views

How to create/edit files for a nologin user in RHEL/CentOS?

I have a user defined like so: sudo useradd -m -s /sbin/nologin foo It is not meant to be logged into but it is meant to serve a web application. However, if I try to do anything inside the ...
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2answers
3k views

Problems Configuring the VNC Session for RHEL 7 on Power8

I follow http://www.linuxexplorers.com/2014/04/configure-vnc-server-in-red-hat-enterprise-linux-7-rhel7/ to configure the RHEL 7 VNC server. At the final configuration step "systemctl start ...
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1answer
472 views

Expose a Reverse SSH Tunnel on the Remote server

I set up a Reverse SSH tunnel from my home computer to my work server: ssh -f -N -R 19999:localhost:22 remoteuser@server To connect to my home computer I have to first log in to the server and then ...
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1answer
351 views

Running find…exec tar czvf only archives one file…need all files

When attempting to run find . -iname "*.gz" -mtime +7 -exec tar czvf all_gizip_$(date +%Y-%m-%d).tar.gz {} \; I get the list of files ./corosync.log-20140620.gz ./corosync.log-20140618.gz ...
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1answer
135 views

Init 3 command with systemd

I am using Oracle Linux 7 for test purposes. I understand that the entire RHEL family (RHEL, CentOS, and OL) is using systemd now. As far as I know with systemd instead of init 3 I should use ...
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1answer
217 views

RHEL 6 HP Tape Driver Installation Troubles

Trying to install tape drive drivers for the HP Ultrium 3280 SAS using this guide http://h10032.www1.hp.com/ctg/Manual/c02262008.pdf Whenever, I try to execute mkltfs I get this error mkltfs: ...
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0answers
898 views

Qt Installation woes on RHEL 6

I wanted to install qt-creator on my machine so I went ahead and downloaded the appropriate rpm package qt-creator-3.0.1-3.el6.x86_64.rpm. Soon ... rpm -ivh qt-creator-3.0.1-3.el6.x86_64.rpm ...
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6answers
29k views

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
189 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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1answer
848 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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1answer
74 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
24 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
387 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
71 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
330 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
4k 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
82 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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0answers
42 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
307 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 ...
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1answer
66 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
36 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.
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1answer
335 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
36 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
172 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
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4answers
515 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
122 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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2answers
275 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 ...
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1answer
3k 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: ...
2
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2answers
63 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 ...
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3answers
2k 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 ...
2
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0answers
54 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
1k 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
48 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. ...
2
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1answer
196 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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2answers
4k 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
2k 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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2answers
3k views

Need to set mailx variable to specify the From address

Running Oracle Linux 5.8 (which is just re-branded RedHat EL 5.8) I must change the From address. But we have scripts that use mailx which cannot be re-written to use any extra flags, so I'd like to ...