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

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Add multiple workgroups in Samba

I am using RHEL 6.5 and I have integrated this server with Active Directory using this guide. As of now, I have configured only one domain in /etc/samba/smb.conf, so that only the users belonging to ...
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22 views

RAID1 not working on 4K Sector Size

I have created a RAID1 configuration with two internal Fusion-io SSDs. When I formatted the cards to a sector size of 4K, Linux kernel will generate hourly errors stating one of the device has failed. ...
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93 views

KDE-Openbox closes immediately after it opens on Cygwin

I just installed Cygwin a few days ago. Now when I want to explore it, I can't run KDE-Openbox. I haven't tried anything else, except compiling Mplayer which did work. Last time I had Cygwin ...
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15 views

What means “removing packages from package profile” in up2date in RHEL?

What does "... removing packages from package profile: ['package1', 'package2']" mean in RHEL, in the /var/log/up2date log? I thought it was dependencies, but the software is still present.
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461 views

Rebuilding the Linux yum repository metadata

On a RH 6.5, running yum update I get : "This system is receiving updates from RHN Classic or RHN Satellite. Setting up Upgrade Process Error: Cannot retrieve repository metadata (repomd.xml) ...
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285 views

How to configure teaming in RHEL 7?

I've used RedHat documentation to configure LACP on my server. Now I see "Connecting" on the Team just created: why "team0" is mentioned twice in the list? Why is it "Connecting", not "Connected? ...
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132 views

Configure cron for daily NMon task

I want to configure a cron job for NMon to gather stats during all day, everyday. Leaving a file per day to dump into NMon Analyser. I know the proper command to get a spreadsheet format its ...
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188 views

Permission denied tmp dir on STIG RHEL

I am writing a program for a DISA STIG version of Red Hat Linux 6.5. I wrote a shell script to do self extracting on the program and when it self extracts put temporary files in the tmp directory that ...
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406 views

Remote connection to RedHat virtual machine from other PCs in the network

I have installed a virtual machine RHEL 6.1 using Oracle Virtual Box on my Windows 7 Computer. I have set the network options to Bridged adapter mode, my host Computer (Win-7) is connected on my home ...
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1k views

Tried changing to static ip in RedHat 6.5 using VMWare. Unable to access the internet now

I followed resources on the internet to assign static ip address for RedHat 6.5 installation in VMWare. I am unable to access the internet after that. My terminal output of the files I changed are as ...
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211 views

OPENVPN AS - Could not connect to the test server on the Internet

I have set up OpenVPN on my server and I can access it through Tunnelblick. I am however having issues to set up OpenVPN Access Sever. After Install I noticed that in the server name field there was ...
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529 views

zerombr and clearpart not working in RHEL7

I've been using the following simple partitioning scheme to setup some RedHat machines. zerombr clearpart --all --initlabel bootloader --location=mbr autopart The unfortunate part is that I know ...
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39 views

How to use scanner drivers api in Linux shell script

Usually when scanning any page using Canon DR- 2050C scanner in windows it rotates vertical text paged to horizontal automatically for the easy reading of the user. In Linux we are manually scanning ...
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254 views

bash script to verify rhel patching

we have several redhat servers which we patch from redhat satellite. To avoid confusion, I'll use the term "host" to denote the server which is being patched. We have a script, say, patch.sh, which ...
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15 views

How to increase horizontal and vertical default spacing between icons on desktop at EL6

I have installed centos 6.5, by default icons are appearing very near to each other on desktop. From where I can increase space between them? Any clue? Which file is recommended to modify manually, ...
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21 views

facing issue while installing oracle Database 11g on rhel5 And SOA

While installing required rpms for both SOA and Oracle the below rpms are conflicting with each other glibc-devel-2.5-49.x86_64.rpm and glibc-devel-2.5-24.i386.rpm How can I fix it? one package gets ...
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61 views

Is there anyway to download an entire RHEL repo from windows?

I have a number of offline machines RedHat machines that I need to update, and I have an active RedHat subscription for all of them. I am unable to get an internet connection to these machines so I ...
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25 views

Generate what a GRUB2 kernel line would look like

In GRUB 0.97 we were able to see what the kernel line/options would look like by just viewing /boot/grub/grub.conf. Now the only way I know how to check the next boot kernel options/kernel version ...
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85 views

Problems with permissions for /tmp

I executed command: chmod 1777 /tmp Now I get these results of executing the ls command from root: ls -ld /tmp drwxrwxrwt 4 root root 4096 Aug 9 05:42 /tmp and from not-root user: ls -ld /tmp ...
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273 views

centos 7, xhost and other user than root

The following worked under CentOS 6: sudo su xhost + su - oracle xclock Under CentOS 7, I get an xclock after sudo su and xhost +, but a DISPLAY error when changing to the other user. Am I ...
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172 views

Unable to install Crypt::SSLeay perl module on RHEL 5.7 (x86_64)

Here is the scenario, actually my RHEL 5.7 (x64_86) server don't have internet connection. but I want to install Crypt::SSLeay perl module on that server. So I downloaded it from CPAN & then ...
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39 views

Is there anything in RHEL 6.5 that would affect I/O speed for something <24K vs >24K?

Generally, transactions for my app of setting and getting data internally are measured in a couple of millis. However, over 24K in size, that time can jump to just over 100 millis. Is there anything ...
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74 views

Samba 3 file sharing access permission problem onWindows

I'm trying to set permissions on a server RHEL v5 whith Samba v3. The configuration of /etc/samba/smb.conf is [project] valid users = proyecto, admin writeable = yes ...
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32 views

PlayOnLinux(POL) Excel 2007 can not open more than one spreadsheet

I have Installed CentOS 6.5 - i386 and PlayOnLinux 4.1. On that MS Office 2007 is installed. Word 2007 is able to open more than one document simultaneously and also possible to perform Cut, Copy and ...
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38 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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83 views

Disa stig viewer don't read the log file

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 file. It ...
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663 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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122 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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44 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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191 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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2k 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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55 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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291 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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72 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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116 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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138 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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20 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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18 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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23 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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52 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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71 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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106 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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46 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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233 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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89 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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104 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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50 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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202 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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394 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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136 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 ...