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

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Can't make a copy of /var/lib/mysql/ibdata1

I have a RedHat Linux server and I'm trying to make a copy of /var/lib/mysql/ibdata1, but I'm receiving an error saying permission denied and the file cannot be opened. I'm logged in as root user and ...
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209 views

Flash drive not working on a particular RHEL machine

I have a 32 Gib flash drive. The first time I copied files to it, it failed with a write error and the drive was no longer recognized by the server. I ran a scan on it using Windows chkdsk, which ...
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1k views

Making the Spotify Linux client (for Debian) run on RHEL

I'm trying to convince the Spotify Linux client to run from my home directory on a RHEL 6 machine (I don't have root privs, and running the Windows client through Wine results in audio stutter since ...
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378 views

W2K3 DC: Samba file sharing access permission problem

I want to access SAMBA shares from a Windows Server 2003 domain controller without a password. But, I am receiving a permission error each time. I'm using RedHat 5.5. # ls -l total 96 -rw------- 1 ...
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23 views

Why are man pages blank for non-root users?

. . . And how can I fix that? :-) I'm running RHEL 5 and when I try to view man pages as a regular user, they are blank. I've tried man man > manman.txt; cat manman.txt and there is no output, ...
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7 views

PCI-e SSD - Not visible to sysstat's iostat or sar

I am attempting to get basic statistics during test runs on a server with a PCI-e attached SSD that is mounted on /dev/rssda1, however sar and other sysstat either do not log, or in the case of iostat ...
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11 views

RHEL Stig Viewer

I'm Keith. I'm working with a dev group deploying RHEL 6.5. I have used the stig-fix-el6 stig master to stig my system. I attempted to use the Disa stig viewer to view the log, but it doesn't read the ...
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29 views

nfsd fails to start: modprobe: FATAL: Could not load /lib/modules/2.6.18-238.1.1.el5/modules.dep: No such file or directory

Before asking, here are some system specs: [root@SERVER ~]# cat /etc/*release **##############CARS build log for cars20-rhel-x86_64############## Date: Mon Feb 28 20:06:05 PST 2011 Builder: ...
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42 views

zip command is failing during high memory usage

We have several perl scripts, which generates and emails reports. The script that emails the files expects a .zip extension. The report scripts generates a .txt or .xls file and then runs the ...
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30 views

Internal secondary hard disk suddenly failing to mount

In RHEL5, my internal secondary hard disk (1TB) suddenly fails to mount after some unexpected power failure and after my system got off. But it's showing in BIOS and while Booting checking as sdb ...
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56 views

vdsm service won't start

I am currently evaluating Red Hat Enterprise Virtualization and have managed to set up the management server and the bare metal hypervisor. Now I'm trying to add a regular box running RHEL server 6.5 ...
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81 views

RHEL server Booting problem: "fsck.ext3: unable to resolve 'LABEL=/u01'

We had an old Linux server in the workplace for last few years, so I decided to turn it on and it's showing this problem during boot up: No devices found Setting up Logical Volume Management. ...
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20 views

Mirror mode openldap perfromance is slow when either mirrored node fails

I'm managing two openldap servers in mirrored mode. When either server fails ldap performs poorly, 30 seconds to several minutes to authenticate. Affected services include ssh and X11 (XDMCP). A ...
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40 views

Creating yum .repo file from a remote repo using rpm

This command (from the install page for Varnish 3.x): rpm --nosignature -i http://repo.varnish-cache.org/redhat/varnish-3.0/el6/noarch/varnish-release/varnish-release-3.0-1.el6.noarch.rpm appears ...
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28 views

Munin Server not making Graphs

On my Central Monitoring Server previously Munin 1.2.5 Server was installed. So now I update the server with latest Munin 2.0.21 and moved the files for /var/www/html/munin to new directory ...
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48 views

Centos 6.5 laptop with multiple KVM on roaming networks

I have Laptop with CentOS 6.5 with 16GB RAM and many KVMs are created for testing purpose. Situation is I have to move from site to site, and due to that physically connected network eth0 to Host ...
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61 views

RHEL & SUSE 2014 CPU & storage benchmarking tools

I have hundreds of Linux servers that we need to benchmark the CPU & Storage on. RAM & Networking would also be good. If possible I would to avoid installing a large suite, but not totally ...
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11 views

Munin not Showing text

I installed munin server 2.0.21. Previously 1.2.5 was installed but I saved the configuration files and removed the old one . Then I install 2.0.21 Munin Server and 2.0.21 Munin-node and after ...
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16 views

RHEL boot partition size during auto-installation

We are installing some servers with same RHEL image. During the installation, all but one, have got no problem and had boot partition in size of 250M. The one server, after the installation has ...
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17 views

Problem with installing mcsima+

I am trying to install mcsima+, but I am facing an issue over step 5 which requires me to compile the program. The instruction I ran for step 5 is, 5. Compile a test program 'stream' - cd ...
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30 views

How to configure Java Security Manager on JBOSS?

I’m trying to configure JBoss EAP 6 with java security manager. The official guide says you should edit the standalone.conf file, but I can’t find it. Can I circumvent this issue and define the java ...
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22 views

How to uninstall omniORB 4.1.7 after installing from make?

I'd like to uninstall a copy of omniORB which I installed by running make install Any tips on how to do this operation? I tried make uninstall but the project does not have such a target. I ...
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35 views

Missing CD-ROM from /dev Redhat (Oracle Linux) 6.2

We have installed the minimal install for Redhat 6.2 (OL 6.2) on a HP Proliant 380 G8 and there is no CDROM, SDB or DVD listed in /dev. If I do dmesg | more, I cannot find any reference to it ...
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29 views

Postfix does not respond after “Mail From”

I have a VPS with Linux on it, and Plesk. The /proc/version file has (Red Hat 4.4.6-4) in it. The mailer is Postfix, but it isn't working, if I telnet in to port 25: I Get the banner I do HELO I ...
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60 views

Red Hat/CentOS Cluster HA Web Server Issue “rgmanager[30244]: [script] Executing /etc/rc.d/init.d/httpd stop”

I'm trying out to deploy a red hat cluster to setup a HA Web Server. I followed the documentation below at page 81 ...
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38 views

RHEL Linux 6 teamviewer 9 upgrade error

I had teamviewer 7 installed on my server RHEL 6, but I wanted to upgrade it. I downloaded the latest rpm teamviewer 9 en from here and upgraded it, now my server X window system won't start up. ...
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48 views

Desktop appears as a terminal when viewed via VNCserver client

I have installed vnc server on a RHEL 6.5 machine using the following commands: yum -y install tigervnc-server xorg-x11-fonts-Type1 and have made the changes to the /etc/sysconfig/vncservers file ...
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28 views

Hit “sasl_decode error=-1” while sending mail via sendmail server on RHEL

Having installed sendmail and openwebmail on RHEL workstation 6.3, I can send email through webmail(cgi-bin/openwebmail/openwebmail.pl), but failed to interact with sendmail server in Perl script as ...
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1k views

Kernel panic not syncing : Attempted to kill init

OEL 5.9 (Tikanga) 2.6.18-371.6.1.0.1.el5 On boot I get the following errors: ... exec of init (/sbin/init) failed!!!: No such file of directory Kernel panic - not syncing - Attempted to ...
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31 views

Citrix printing problem on centos - hp

I have setup Centos 6.3 - 6.5, installed wine and running Citrix app. I can print perfectly Wine based apps (i.e. wine notepad) but when printing Citrix through wine it is printing ASCII characters. ...
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26 views

LDAP Server under Debian vs LDAP Server under Red Hat

i have read about Red Hat Directory Server: Red Hat released a directory service, that it acquired from AOL's Netscape Security Solutions unit,[1] as a commercial product running on top of ...
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18 views

KRB5 auth with samba

I'm attempting to setup a samba share on RHEL6 for a group of users. There are quite a few of them with very little technical experience so having them SSH in to reset smbpasswd is asking a lot. We ...
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42 views

C# project not building. Error says mono is not configured correctly. On a rhel 6.5 Workstation

I'm using Eclipse, and I installed the emonic plugin for C# and the .net. When it autobuilds a project I get this error: BUILD FAILED Mono 3.5 Profile (mono-3.5) is not installed, or not correctly ...
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86 views

Oracle Linux R6 Install Error

My Oracle Linux R6 x64 won't install. After normal install it's just blank screen. After basic video driver options install stuck on "Waiting for hardware to initialize...". Tried with different ...
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51 views

What is the correct repository to add for `debuginfo-install glibc` for RHEL 6?

I am trying to install debug-info for glibc on RHEL 6. The closest instructions I could find for adding the repository is at the answer to this question. However, that question is about CentOS, which ...
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60 views

system boot appears in last but not in /var/log/messages

I am looking after a Red Hat Enterprise Linux 5.4 server. A user sent me a copy of the output from the last command and it shows multiple reboots on different days (there is no visible pattern to the ...
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162 views

How to setup a static IP on Red Hat 6.5 using VMware?

I have VMware 5.5 with a vmguest RHEL 6.5. I get connectivity with DHCP from RHEL -> switch1 group -> physical-> to internet. Once I set up the vmguest with RHEL 6.5 with a static IP, it nolonger has ...
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59 views

How do i block USB devices based on device class in Linux

Problem Statement In windows server to provide access to USB devices are managed by GFI EndpointSecurity. Is there any open source tool in Linux which can do the same job. I want to block USB ...
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66 views

MBR to GPT Conversion of existing RHEL 6 system

I have got RHEL 6 running on MBR (Master Boot Record), management is done using fdisk and parted commands. I would like to know the steps or procedure to convert existing system to GPT (GUID Partition ...
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20 views

KVM Desktop Client cannot connect to www server

I have a KVM test set up on a workstation. All the instances are using macvtap and a bridge. I can access the web server running on the KVM from a physically separate machine by IP address or DNS ...
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107 views

Installing Upstart on Centos 5.10 Final… pkg-config dependency issue

I am trying to install upstart version 1.11 from source on a Centos 5.10 Final box. BTW I don't have option or privileges to upgrade this. I am at this point where it is complaining about the ...
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85 views

chkconfig format not accepted in rhel

I'm currently working on "Red Hat Enterprise Linux Server release 5.10 (Tikanga)" and i am having issues while adding a script to the startup using chkconfig. Below is the Header Code of "MyScript" ...
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35 views

Send big data with dsmigratedata command

I want send data to remote server using this command but I dont know what is the syntax is that I can use for this command... I'm using the command: $ dsmigratedate -s user@remoteip -p 22 password ...
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124 views

Serial Over Lan redirection stops at OS boot

I'm trying to create a monitoring system for a remote machine using an IPMI Serial Over Lan (SOL) console. The remote OS is RHEL 6, the mobo manufacturer is Supermicro. I've successfully enabled SOL ...
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149 views

gdb-multiarch command not found

I have installed QEMU in RHEL for running the assembly programs in ARM. I have successfully installed QEMU and ARM. However, for debugging we are thinking to use GDB. I want to install the ...
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51 views

Running assembly program in RHEL

I am new to system administration and we are trying to install QEMU emulator, GCC for ARM and GDB to communicate with the QEMU/ARM program being executed in RHEL. I was having troubles installing the ...
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53 views

Why Redhat is not installing using HTTP

Im trying to install Rehdat using HTTP and these are the steps I preformed to do it. I copied the iso image in /var/www/rhel/5.9/ Then i made a HTTP YUM repo under /yum-repo.d/rhel-5.9.repo/Server ...
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1k views

'Git clone' times out with 443 error message

git clone -v https://github.com/me/myproj Cloning into 'myproj'... <minutes pass> error: Failed connect to github.com:443; Operation now in progress while accessing ...
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181 views

PUIAS 6.4 four monitors working xorg.conf

Fox, I would like to make this post in order to save the time to people who would like to use 3-4 monitors on PUIAS 6.4 (RedHat 6.4 clone). My Lab just got some Dell Precisions T1650 with few ...
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164 views

unable to ping gateway and CLAN in Linux but pingable in Windows PC

We're installing RHEL 5.5 for our Voice Portal (Avaya). After configuring the IP address, gateway IP, and netmask we tried to ping it so we could see if it was pingable/active or not. Sadly its ...