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

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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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411 views

How do I install some required libraries for a program without sudo?

I am trying to run a program on a computer running Red Hat 6.5. This results in the three following errors: "/lib64/libc.so.6: version `GLIBC_2.14' not found" "/usr/lib64/libstdc++.so.6: version ...
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292 views

Where are yum groups defined?

I am setting up a cluster and for whatever reason some nodes do not have all the groups required to set up Infiniband ('Infiniband Support' in particular.) I know I could just find the list of ...
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How to install webkitgtk1 on RHEL7

I am running software on RedHat Enterprise Linux 7 which requires libwebkitgtk-1.0. Unfortunately RHEL7 comes only with webkitgtk3. In contrast, RHEL6 had only webkitgtk. Other distributions like ...
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798 views

Does dm-multipath schedule I/O?

I have a multipath device I'm interested in: [root@xxx dm-7]# multipath -ll mpathf mpathf (3600601609f013300227e5b5b3790e411) dm-7 DGC,VRAID size=3.0T features='1 queue_if_no_path' hwhandler='1 alua' ...
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308 views

How to setup reverse FTP in RHEL?

Researched: http://www.thecave.info/export-proxy-username-password-linux/ http://stackoverflow.com/questions/5334110/text-based-ftp-client-settings-behind-a-proxy ...
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950 views

RHEL openssl conflicts

I am stuck installing PHP 5.5 (to support wordpress) on RHEL 6.3 (Santiago), I think the server was not set up correctly (contractor) and I have ended up with a copy openssl from ius as opposed to ...
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Accessing system after GNOME failed

I have difficulties to access GNOME in Scientific Linux 6.5 I did try to set automatic login following wiki.archlinux. In /etc/gdm/custom.conf I added: [daemon] AutomaticLogin=username ...
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226 views

Yum can't download, but curl is fine?

I'm creating a local copy of rpmforge on a RHEL5 host. # reposync --repoid=rpmforge --download_path=/var/www/html/yum # cd /var/www/html/yum/rpmforge; createrepo --database . I have a repository ...
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134 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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154 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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Garbage hex bytes in wtmp file

I have been trying to extract the boot and login history for a test PC running RHEL 5.8 with some kernel updates. I started by using last -f /var/log/wtmp, and noticed some strange results. Further ...
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290 views

talk to modbus device

I currently have a minimal install of Red Hat 6.5 running, on the machine I need to talk to a modbus device. I am wondering what tools and drivers are needed on a linux machine to talk to a modbus ...
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88 views

Latest libxml2 port to RHEL4

I am currently installing ModSecurity on our development servers and the problem that I am running into with the latest version is that we are utilizing RHEL 4 on our servers. They have no intention ...
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278 views

Setting up 3rd party sftp server to run on port 22

I'm trying to setup CrushFTP 7 on a RHEL 6.5 machine and am having issues. If I leave everything as default I can connect using port 2222 but I need to be able to have CrushFTP respond to requests on ...
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134 views

cd to a child directory of a symlink fails

To build a kernel module, you have to do make -C where -C is cd functionality. As my make failed a lot of times, I found this: [root@ror6ax2 modules]# ls -l /lib/modules/`uname -r` | grep build ...
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5k 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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269 views

Get KERN_DEBUG messages into syslog on rhel7/centos7?

I've been trying to get KERN_DEBUG messages logged to a file in centos7, but have had no luck. I can get them just fine from "dmesg," but not /var/log/messages or /var/log/dmesg Here's a MWE kernel ...
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How can I set up Virtual Hosts in Centos7?

I am trying to set up virtual hosts in Centos7. I followed this guide: http://twohlix.com/2011/05/setting-up-apache-virtual-hosts-on-centos/ however I keep getting the following error: Job for ...
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1k views

If a start-up script in `init.d` has standard output, where is that logged if anywhere?

We have a startup script that is symbolicly linked to /etc/rc0.d/K01ourapp. Apparently, it is not working as expected during shutdown. The script actually does a few echo calls that may help in ...
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259 views

Built new kernel, LVM won't mount from initrd

I need to upgrade my kernel on a RHEL 5 system to build with some experimental drivers. I have configured the kernel with module loading for LVM (dm_* modules). Once the initrd runs the /init ...
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133 views

What is the foolproof/proper way to set hostname and domain on CentOS

I've seen a few ways of changing hostnames of domain names. One way is to issue the hostname command followed by the name such as: hostname localhost.localdomain /etc/sysconfig/network also has a ...
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518 views

Installing RHEL6.5 by swapping RPMs

BACKGROUND So I've been tasked with updating a system from RHEL6.0 to RHEL6.5 via a bootable USB. Due to size limitation, I've stripped (using the rpm -e command to prevent dependency errors) ...
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429 views

Permissions changing on few files under /etc/

It appears that new permissions on /etc/issue and /etc/motd are reverting back to the original even if we change them. This is on systems running RHEL 5 and RHEL 6. Is there any rc script which ...
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316 views

objdump Vs sh4-linux-objdump

I need this command (sh4-linux-objcopy) in RHEL 6. I could not find the package by yum install , neither there is a corresponding rpm. Here is how I want to use it: sh4-linux-objdump -h vmlinux | ...
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git 1.9 and yum groupinstall “Development Tools”

I was reading that installing unofficial repositories in RedHat was not a good idea. So I was trying to install NodeJS on the RH Server and I saw that the git version was 1.7.1. Our team is using 1.9 ...
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289 views

Connecting remotely to Red Hat [closed]

so I've done this tutorials http://nearlydeaf.com/?p=1122 http://golubev.org/?p=73 also installed minimal version of gnome in Redhat my firewall is open on port 3389 and then trying to connect ...
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Remotely work on Red Hat Box

So we're working on a project and currently,have the need to edit/save files remotely on a Red Hat box. We are accessing this files mainly with sublime-text. So we are trying to figure out what is the ...
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Can't boot into single user mode

I hosed my login (bad script /etc/profile.d) and I can't SSH into my system or boot it into single. I append " single" to the end of the kernel boot parameters and it just keeps booting like normal. ...
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3k views

Packages skipped because of dependency problems:

2.6.32-71.el6.x86_64 RHEL 6 Please see at the end I am getting some issues due to dependency: [root@xilinx Downloads]# yum install --skip-broken glibc* Loaded plugins: refresh-packagekit, ...
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569 views

HOWTO check if a user account is blocked against /etc/shadow

After set the Account Expire parameter on /etc/shadow (field #7) to 90 days,I need to know where to look around if an user account is locked down or not after those amount of days. Right now, the ...
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How can I retrieve screen unlock times in Gnome on later Red Hat variants?

The last command only retrieves the login times. I'm interested in the times that the screen was unlocked. Any indirect means of getting this are also welcome.
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Directory mounted under regular user is inaccessible from said user

I have Red Hat Enterprise Linux 6.5 and I just mounted an SSHFS directory. When I try to browse the mount as my regular user I can't browse it, but as root I can. Believing it was a problem with the ...
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Create service from command [closed]

I have following command which I try to setup to run on startup: su -l hive -c "nohup hive --service metastore > /var/log/hive/hive.out 2> /var/log/hive/hive.log &" I was thinking about ...
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How to configure DHCP so that hostname is not sent?

A simialr question Host name on terminal changes when I connect internet : why? But since it was not resolved in my case so I am putting it here and asking in a different way. The answer given here ...
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303 views

What problems should I expect when adding a CentOS yum repository to RHEL?

I've added the CentOS 6 Updates yum repository to my RHEL 6.4 machine. That's because RHEL doesn't ship with the php-snmp package - and the easiest one to find is on the CentOS site. Anyways, this ...
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How to recover missing Grub File

On my test system. I was doing some testing and i move the grub.conf file from /boot/grub/ to /opt/ And on boot black screen came as expected with just grub> written on it. I tried to solve it using ...
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Why is yum not installing my softwares on RHEL 6 ?

I am trying to install avr-gcc using yum on a RHEL 6. But I get this error. [root@xilinx etc]# yum install avr-gcc Loaded plugins: refresh-packagekit, rhnplugin There was an error parsing the RHN ...
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Yum not working

When I try to execute yum I get this: My guess is I need to start the Ethernet connection because I cant ping and this is what what we do with SL6. I'm new to CentOS that is why I ask. I've ...
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Installing PostgreSQL 9.0 on RHEL 6.4 (How to get Yum to Include a version of OpenSSL I built from source)

I receive the following errors from yum install postgresql90-server: Error: Package: postgresql90-9.0.15-1PGDG.rhel6.x86_64 (pgdg90) Requires: libssl.so.10(libssl.so.10)(64bit) Error: Package: ...
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400 views

USB flash drive file transfers seem to hang multiple times during file transfer

I've got Scientific Linux 6.4 Installed (RHEL6.4) and am having trouble transferring to and from USB flash drives... Transfer seems to hang multiple times during transfer to the device, and transfer ...
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499 views

Upgrading Red Hat 9 (Shrike) kernel manually

I am following the instructions here on how to manually perform a kernel upgrade in Red Hat. The current Kernel RPM's are: kernel-2.4.20-8 kernel-headers is not installed kernel-ibcs is not ...
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930 views

EACCES that should not happen

I have a situation on a Linux machine that I can't really explain. Some background: We're running apache with a c/c++ module that forwards requests to our application. It does so by reading a .port ...
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How do I find new drivers for my laptop in RHEL WS 6.4?

I recently installed Redhat workstation 6.4 on my laptop as some of the stuff we're doing in class uses Linux (we have an RPi that we're learning the C language on). I figured, since the school has ...
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RHEL - NFS mounting failed

I have an issue with nfs services in one of my client machines. Let me brief you my lab setup. We have a server and 16 client machines connected in a network. We have 60 LDAP users whose home is ...
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342 views

How to create LV

I want to create some LV in my VG I have this: LV Name /dev/vg_appli/lv_grt LV Size 10,00 GB LV Name /dev/vg_appli/lv_sap LV Size ...
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931 views

RHEL - permanently unmask all sub-folders and files

I'm new to RHEL, and I'm having issues unmasking a collections of directories. I have a folder where content will be generated content from a python script. The subfolders will exists for a period ...
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Hugepages in linux - how to make sure that java process will start using hugepages

I'm running java server on Red Hat Enterprise Linux Server release 5.9. Recently I started to use HugePages as it has some advantages I would like to use. System was configured correctly (as many ...
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How to use 32 bit compiled shared object (.so) file on 64 bit RHEL?

I have a shared object file libfault.so for my 32 bit compiled application on RHEL 6.4. I want to preload this file while starting my application. I have placed it in /usr/local/lib/ directory. But ...
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How do I configure the driver for eth0 so I can use a kickstart file over the network?

I am trying to use a kickstart file hosted over the network to install Oracle Linux 5.8 (equivalent to RHEL 5.8 I believe). I am using the following at the boot prompt: linux ks=http://1.2.3.4/my.ks ...