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

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debugging: new ssh connection could not be established but ping was ok on RHEL 6.3 (high cpu usage)

One of my RHEL 6.3 build on vm raised an alert "virtual mechine cpu usage". I tried to connect to the vm using putty but the connection could not be established. There was no packet loss from ping. At ...
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110 views

rsync command not preserving permissions

rsync is not preserving permissions/ownesrship after file transfer. Here is the scenario Source host(192.168.2.14 from where files are copied): Source Path # ls -l "/shareddata/tesz/" total 4 ...
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1answer
100 views

Blurry screen but clear screenshot, RHEL 7

I installed the nVidia drivers for my Quadro 2000 card using the ElRepo repositories. The install went fine and I ran nvidia-xconfig which generated a new xorg.conf file to use. However, my monitor ...
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1answer
298 views

Can't disable SSLv3 in Apache + mod_nss

I am trying to implement TLS through mod_nss in Apache (RHEL 7). As per the documentation, I have installed mod_nss and removed mod_ssl. I have followed the steps outlined in the documentation (see ...
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1answer
1k views

RHEL 6.7 kickstart using minimal boot media on UEFI

I'm new to RHEL (haven't used it since the early 2000s when it was still open source) and currently attempting to install it on a cluster of machines. I'm trying to automate this process as much as ...
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4answers
323 views

Portable Linux webserver that does not require sudo, install, and internet

I have a corporate Red Hat Server that does not have sudo, package manager, and internet network. I need a webserver client, and have tried installers and binaries of httpd and lighttpd but references ...
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1answer
57 views

RHEL 7.1 Virtual Terminal

I am looking to disable the Virtual Terminals on a RHEL 7.1 laptop. All of the instructions I have found point me to adding Section "ServerFlags" Option "DontVTSwitch" "true" EndSection to the ...
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1answer
62 views

yum info: what does “Repo: installed” mean?

On RHEL 5 I entered yum info vsftpd and got this result: Installed Packages Name : vsftpd Arch : i386 Version : 2.0.5 Release : 28.el5 Size : 289 k Repo : installed ...
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37 views

Facing issue while integrating RHEL 6.5 with windows AD

I was integrating my RHEL linux servers with AD. For some servers the integration was completed successfully. For one server I am facing issue,whenever I try to join its showing below error, ...
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68 views

Deleting of whole symbolic link folder when rpm -e is ran

I am currently building an rpm for RHEL 6.6. The installation of the rpm goes great the the command rpm -Uvh foo.rpm. However I run into a problem when I do the rpm -e foo command. The problem is ...
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29 views

RHEL7 : Freeing memory allocated for Block IO i.e. bio -> bio_destructor

I want to know HOW memory allocated for BIO gets free specific to RHEL 7. I think, in RHEL 7 , bio->destructor field is removed from the bio structure. So, how exactly the memory will be freed? ...
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35 views

Install orca on redhat

Has anyone successfully installed/ran orca (a performance monitoring tool for Solaris) on Redhat? I see some old posts asking about it but there have been no responses. ...
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3answers
675 views

RHEL6 openssl + httpd confusion

I have a confusion around openssl + httpd (SSL). I got a rhel 6 server to manage, from the previous admin. This server hosts a (HTTPS) web site. Recently, I updated openssl to a more up-to-date ...
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1answer
130 views

rsync --delete did not remove file in destination while with ssh

On my RHEL6 pair of servers, I tested the rsync from server-1 to Server-2 with SSH. Everything was good as expected. However, when I moved a file under A directory, A/x.file to B/ of /home/user on ...
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1answer
477 views

Installing .NET on RedHat

Microsoft just released their beta7 version of aspnet yesterday and I'm interested in installing this on a rhel release. I've been able to install it on ubuntu but the docs for rpm systems have not ...
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1answer
273 views

Red Hat no package realmd available

I would like to use AD authentication with a RHEL server using realmd and SSSD. I tried installing realmd using yum install realmd but I get the following message: Loaded plugins: product-id, ...
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1answer
277 views

RedHat cluster with rgmanager or pacemaker as resource manager on Oracle VirtualBox

I'm learning RedHat cluster and I have setup a 3 node cluster (Centos 6.7), corosync, cman and rgmanager on Oracle VirtualBox version 5.x. The cluster is working fine (the clustat commmand shows that ...
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1answer
97 views

Use SSH on RedHat installed on Oracle Virtual box

I have installed Oracle Virtual Box and RedHat on it. Can I use SSH or PuTTy from my local PC (Windows 7) to access RedHat locally? If yes then what will I enter in field of Host name? And if no then ...
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1answer
517 views

Enabling FIPS on a luks encrypted CentOS system breaks boot password

For one of my apps I need to enable FIPS for OpenSSL, while simultaneously using software disk encryption. VM #1 I launched a CentOS VM instance which was software encrypted during install. The ...
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94 views

Disable VGA port via GRUB in Linux

I want to disable VGA port of my hardware by making changes in the GRUB. How can I do this? I am using Red Hat.
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1answer
34 views

Maintain 32 and 64 bits version of rpm

let me explain this a little bit, I am in charge of update part of our company product from 32 to 64 bits. At the end, we should have a 64bits kernel + 32bits applications + some 64bits ...
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1answer
108 views

RHEL6 No protocol specified, can't open display

I got this when I try to open nco_event in RHEL 6.3 [netcool@noi bin64]$ nco_event& [1] 19962 [netcool@noi bin64]$ No protocol specified Fatal Error: ...
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1answer
565 views

usermod always reports user does not exist on RHEL 6.6

My RHEL 6.6 VM is running behind Centrify Active Directory. When I do sudo id 'any_existing_user' it will give back info about that user. But when I do sudo usermod -c 'Comments' ...
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2answers
8k views

RHEL6 + Error: xz compression not available

When installing packages via yum on a RHEL Server 6.6 system, I get the following error: $ sudo yum install foo Loaded plugins: product-id, rhnplugin, security, subscription-manager This system is ...
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2answers
491 views

Install a specific RHEL point release

Is there a way to effectively yum update to a specific point release in RHEL 5 and 6? When a new point release is rolled out, the powers that be in my organisation put it through acceptance testing, ...
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3answers
231 views

How to identify if a direcory is created by System or a root user?

How to identify if a directory is created by Linux system and by user like root. Example: in /etc there is a directory named sys which is created by Linux. And I logged in using root and created the ...
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1answer
159 views

How to make boot output verbose?

I use to enjoy watching my red hat then debian then ubuntu machine boot, the boot process was not hidden from my view, now it is, in most of all distros, now, I know I can somehow connect a terminal ...
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1answer
32 views

Can I make sure history logs all execution?

Please forgive the ambiguous nature of this question but I was wondering if there's a way to make sure that all commands executed by some host are logged into history. In my case, if I send a command ...
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1answer
146 views

NFS change ownership issue

We are accessing NFS mounts across three hosts. The issue for us is that when we change the ownership of a directory on NFS mount on the server, the ownership changes are not taking place on the ...
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0answers
273 views

How do I add modules, binaries or scripts to initramfs in RHEL distributions?

I have an initramfs script I developed for Debian distributions that required some extra binaries to be loaded into the image. I'm now trying to port this to RHEL distributions and I'm struggling. To ...
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1answer
1k views

Wget, abort retrying after failure or timeout

I'm calling a url with wget: /usr/bin/wget --read-timeout=7200 https://site_url/s Wget performs a GET request every 15 minutes in this case, despite the timeout being set, why does this happen? ...
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1answer
207 views

What are the values for VLAN_NAME_TYPE when setting up a VLAN interface on Linux

When creating network interface files in /etc/sysconfig/networ-scripts/ on RHEL/CentOS servers, what are the different values for VLAN_NAME_TYPE and what do they mean?
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2answers
2k views

Tomcat 7 not producing log output to catalina.out on RHEL7

I have a RHEL7 server with Apache Tomcat 7.0 installed and after a recent update to RHEL7.1 all of the logging to ${catalina.base}/logs/catalina.out was stopped. However i am receiving the logs inside ...
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55 views

What are the steps to migrate from GRUB to GRUB2?

I have a fresh installation of Scientific Linux6/RHEL6/CentOS6: I have /boot with boot loader and / with all else (which are sda1 and sda2 partitions of one hard drive, on a fresh, real system). I ...
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1answer
30 views

use custom intltool installed in home directory?

OK, I would never do this on a system that I was running, but I'm having to build on a server that I don't administer. To test out how to do I have a "dummy" project that I'm trying to build on the ...
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1answer
76 views

“sort -h” not working in Redhat 5.9. Any way to upgrade it?

I'm trying to sort the folders disk usage in human readable format in RHEL 5.9. I mounted the drive as NFS in Cent OS 6.4, where sort -h option works fine. But in RHEL 5.9, it throws error as ...
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136 views

Upgrade python from 2.4 to 2.6 on RHEL 5.7

Currently We have 2.4.3-56.el5 version of python installed on RHEL 5.7. Need to install nodejs for which the python version should be upgraded to python26. I have downloaded the below rpms: ...
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1answer
21 views

Need clarification on apache reload

I need to do a /etc/init.d/httpd reload on my production server running httpd. Was wondering if after doing the configuration changes if there is some configuration glitch and we do a reload , will ...
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1answer
233 views

RedHat Glibc - multiple packages

Before I jump into the issue, I am using RedHat 6.5 and have no access to the internet to download yum updates due to environment restrictions. All I have in this case is the CD ROM (RHEL 6.5) to ...
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1answer
2k views

SOLVED: Useradd fails: useradd: cannot lock /etc/passwd; try again later

When I attempt to add a user or delete a user, as root, I get the following error: useradd: cannot lock /etc/passwd; try again later. After looking thru many posts I don't have any of the usual ...
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57 views

check status of network printer in linux

I need to enable/disable print button in my application based on status of available printers. For USB drivers, I am checking sysfs ( /sys/class/usbmisc/lp0/dev ). But for Network drivers I didn't ...
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1answer
52 views

Redirect rule for Apache : Adding www to URL

I want to add www to my URL e.g example.com.au . Right now if I type www.example.com.au in the browser it gets changed to http://example.com.au . I want it to be http://www.example.com.au . Below is ...
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48 views

Internet connection proflem on CentOS and Redhat linux

I am new on CentOS and installed dual boot with windows 7. I am using a local isp internet on my windows7 system but can't access through centos. On centOS system, using the same IP, DNS, and Server ...
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2answers
149 views

umask permission - where it works, where it doesn't - ftp vs scp

Src = SJOAM Dest = sjoam2 Connecting to a ftp server, get a file from it. On ftp server side. [oracle@SJOAM ~]$ ls -l total.zip -rwxrwxr-x. 1 oracle oinstall 412 Aug 8 09:03 total.zip On ...
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1answer
1k views

Problems installing R on Red Hat 6, requires libjpeg.so.62

I've been trying to install R on a remote machine using command line. The machine characteristics are uname -a Linux ###### 2.6.32-71.40.1.el6.x86_64 #1 SMP Tue Jul 3 14:39:16 EDT 2012 x86_64 x86_64 ...
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1answer
19 views

Configure scheduling to a program

The program "checking" should be autostart when the machine boot and should be start always with scheduling round robin with priority 27 in Rhel/Centos 7. I can configure this scheduling with cgroups ...
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1answer
152 views

GLIB dependencies on RHEL5

I want to try to use the new Visual Studio Code on RHEL5. But when I run it, it says that I am missing some dependencies. How do I install them? (15-08-07 19:21:25) <127> [~/VSCode] dev-dsk % ...
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55 views

LDAP replication issues (duplication)

I initially thought this question might be more appropriate for SO, however as I believe it's more of a configuration problem I have posted it here. I'm running LDAP 2.4 on RHEL 6.4. I have 2 LDAP ...
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1answer
218 views

How to detect the screen is locked or not when the screen saver is active on Redhat 6.6?

There are two screen saver options in Redhat 6.6 menu "System->Preference->Screensaver": (1) The option "Active screen saver when computer is idle". Check this option will cause the screen saver is ...
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37 views

Can't determine where umask is being changed

On my RHEL system, my /etc/login.defs has the line UMASK 077. I have one user who has a .cshrc which changes his umask to 022. I also have a second user who does not have a .cshrc or .bashrc or any ...