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

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Installing from via terminal (YUM) vs using GUI with dependencies

Hello I'm using Red Hat Enterprise Linux Server 6.2, I'm having issue installing package in via terminal. I already have packages in specific folder including the dependencies. For example, when i ...
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706 views

How to resolve 'netlink: 12 bytes leftover after parsing attributes.' in syslog on Red Hat Enterprise Linux 6.5?

When I install customized RHEL 6.5 with no GUI, on the Virtualized Platform like Esx Server. I am constantly getting, kernel message netlink: 12 bytes leftover after parsing attributes.. And this ...
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Downgrade libxml2 on RedHat 6.7

In this case we have two servers with different version of RedHat: 6.6 and 6.7. The libxml2 version is: [root@Redhat_6.6 ~]$ rpm -qa |grep -i libxml libxml2-python-2.7.6-17.el6_6.1.x86_64 libxml2-2....
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196 views

Mysql server not starting

I installed Mysql server 5.7.9 on RHEL 6.5 using mysql57-community-release-el6-7.noarch.rpm Repo. And installation was successfull but when i try to start it up and gives errors. And from /var/log/...
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35 views

Linux login me in bash with message of unavailable resources

I'm kinda new in Unix and I face this issue for first time. So I logged in one linux box today and I got this message -bash: fork: Resource temporarily unavailable -bash-2.05b# As I understand ...
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1answer
176 views

Apache can't access file while is has permission

I don't want to allow others read access, so I have added my user and the apache user to a group called apachme and then set that group to all the files and folders I want apache to have access to, ...
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1answer
142 views

where can I find the disk latency using iostat ( await, svctm, %util )?

I'm using Redhat Linux 6.5 and would like to see the disk latencies for the used disks. Using iostat I get the columns await and svctm ( including %util ). But according to the man page of iostat ...
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644 views

Why won't the correct new version of Node.js install on CentOS 7?

Note: This is partially solved, but needs a little more attention. See notes at bottom of OP, and @Digisec's partial answer. I am trying to set up Node.js on CentOS 7, but the following commands ...
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1answer
52 views

Cgroups Memory Related Questions

1) Why cgroup is showing more number of tasks than actual number of tasks.? Ex : [root@localhost proc]# ps -aux | wc -l 421 [root@localhost proc]# cat /sys/fs/cgroup/memory/tasks | wc -l 539 2) ...
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21 views

Google map api and rhel proxy server

I have a RHEL virtual server that connects to our corporate environment via a proxy server. Using a Google Map API from my desktop, which sits within the corporate environment, retrieves data ...
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76 views

FIPS mode, signature verification failed

I am building a kernel with FIPS mode on. I followed most of the procedures described on Red Hat documentation here. I also created a hmac signed .vmlinuz file. After installing dracut-fips and ...
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32 views

unable to detect newly added lun in rhel4

Unable to detect newly added lun in RHEL4 running with 2.6.9-103.ELsmp..Tried LIP protocol but that didn't helped echo "1" > /sys/class/fc_host/hostx/issue_lip Any help is appreaciated
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37 views

Problem in installing new software - RHEL6

I am currently having difficulty in installing new software/plugins on my rhel6 work pc. I don't have any internet connection on it and have to download anything I require on a separate internet PC (...
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80 views

Command Samba Mount with Multiple Users

Samba share from server is mounted on my RHEL 7 system via root user. RHEL 7 system have a few non-root users(e.g user1,user2 and so on). Users (user1 and user2) can create, modify and delete the ...
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1answer
17 views

Red Hat 7 GDM + NIS Only Validates First 7 Characters of Password

I've come across an interesting issue this morning. We have noticed that GDM on RHEL 7 is allowing us to log-in with only the first 7 characters of password. We can enter anything or nothing from ...
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21 views

How can I gracefully power down an old PCI system

I have an old PCI server with that has three RHEL 6.5 segments, and I have yet to find a way to power the system down properly. I tried both halt and poweroff and they bring the entire system down. I ...
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15 views

Recreating local selinux contexts after OS Reinstallation

We have added a few specific contexts to our SELinux via the "semanage fcontext ..." command. The patterns are stored in /etc/selinux/targetd/contexts/files/file_contexts.local. Assuming that we ...
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63 views

Recover full command that generated core dump

A program I am working on is crashing and generating core dumps. I think that the issue is related to the arguments that it's being called with, some of which are automatically generated by another (...
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27 views

Permanently Configure two X Servers

I'm trying to permanently configure a second X server to start at runtime on RHEL 7. I am aware that I can start a second x server using startx -- :1 vt 2, but I'd much rather integrate it to the xorg....
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34 views

Service in RHEL server stops working after a while

I have a RHEL 6 server running with several services (I mean, I have made the server scripts and the programs they run). I have a problem with two of them. I will try to explain the problem and then ...
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40 views

Cannot start Acronis MMS server

I have a problem with my Acronis on my linux When a try to start ./acronis_mms start Starting Acronis MMS: [ OK ] but when I want verify if this service ...
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107 views

Is there a way to use epel and local yum together

I am using RHEL7. If I do a fresh install of RHEL7(with connected internet) and then installing epel rpm. All the packages are getting installed after that. But then few packages have dependencies ...
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35 views

How does Grub Stage1, exactly, access/load stage 2? [duplicate]

This is my first ever question, I have put this question in front of Red Hat Instructors but didn't find any satisfying answers. I'm using RHEL/CENTOS6, GRUB Legacy 0.97, and have consulted heaps of ...
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19 views

Rsyslog not creating dynamic directories

I have Red Hat Enterprise Linux Server release 6.5 running rsyslogd 5.8.10 I'm trying to collect logs from a remote client (VM1) and I have the following line configured if $inputname == 'imudp' ...
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81 views

Why can't my servers talk to each other over direct ethernet connection?

I have two servers running RHEL 7.2. Each have 2 NICs. One NIC talks to a switch, and other is a direct connection between the two servers. One of the servers will be an NFS server, and the second ...
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214 views

Why are .so packages provided by the devel packages?

I've seen an interesting pattern in RPM packaging. The main library package will include the shared library itself: /usr/lib64/libavcodec.so.54 The -devel package will provide headers and a symlink:...
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37 views

C# compiler/IDE for Redhat Enterprise Linux 7?

Can someone point me to C# compiler/IDE for Redhat Enterprise Linux 7 ?
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95 views

rsync failing to exclude directory [duplicate]

We are using rsync to copy files from one location to another location on a different host. We want to exclude a directory from the source location so that files from this directory are not copied . ...
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2answers
94 views

My ssh key doesn't work, permissions look good [duplicate]

My permissions look like this: -rw-------. 1 smpadmin staff 400 May 21 2014 id_rsa.pub -rw-r--r--. 1 smpadmin staff 505 Dec 14 19:19 known_hosts drwxr-xr-x. 45 smpadmin staff 4096 Jan ...
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1answer
98 views

Does “defaults” option include “acl” option in /etc/fstab?

I'm working with ACLs on CentOS 7 and noticed that the partition (/) where ACLs are applied is mounted with defaults options. As far as I know ACLs need that the acl option is enabled in the mount, ...
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1answer
154 views

Mount CIFS shares as non-root on RHEL7 w/o desktop

We have a Windows (AD) domain which a RHEL/CentOS 7 server has joined (SSSD / realmd). The users log into the server via SSH with their AD credentials. Now the users should be able to mount some of ...
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59 views

sar/sysstat output logs to a 2nd directory

We're running RHEL on one server and I need to report some stats about the machine. sysstat/sar does a great job but I need the logs to report starting with 6am until next morning at 6am and output ...
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43 views

localize banner message on login screen in gdm 3.8 and above

I am using dconf db to set the banner message as follows: Create a gdm keyfile for machine-wide settings in /etc/dconf/db/gdm.d/01-banner-message: [org/gnome/login-screen] banner-message-enable=true ...
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77 views

gdm Pop-Up Window on Login

So I was using a bit of bash script to get a popup window to appear on login for our RHEL 7 machines. I put the following code in "/etc/gdm/PreSession/Default". /usr/bin/zenity --warning --title="...
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1answer
38 views

yum Invalid or prohibited port

I have an http repo on non-standard port 4080. When trying to retrieve packages list it fails: # yum install aaa Loaded plugins: security, versionlock http://localhost:4080/rhel6/repodata/repomd.xml:...
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1answer
78 views

Automated RPM builds

I'm making my own personal RPM repository. So far, I've built the following packages: x264 libx264 libx264-devel x265 libx265 libx265-devel lame libmp3lame libmp3lame-devel libmfx libmfx-...
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80 views

Redhat: Swap Memory Used is Much Higher Than Total

The top command showed the following information: Mem: 132110132k total, 10447536k used, 121662596k free, 76120k buffers Swap: 16777212k total, 18446744063504593392k used, 10221735436k free, ...
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175 views

How do I mount a USB external hard drive in RHEL rescue mode

I had a boot failure on a RHEL 6.2 machine and I can now only start it in rescue mode with the recovery CD. I would like to move all the data to an external USB-mounted drive but I am having problems. ...
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25 views

Are there some ways to install a smaller new linux on a older one?

The company's redhat linux is too old to install something, but it cannot be replaced with new one. I want to install some software but there are a lot of dependencies that version is too low. I want ...
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1answer
46 views

Long running script stops sending output to file

I have a script that I'm using to capture some status of the server at 10 second intervals. The script is as follows: for (( ; ; )) do /usr/local/apache/bin/apachectl fullstatus sleep 10 ...
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1answer
40 views

yum update error in RHEL 5.11

http://10.91.209.2:81/builds/rhel/RHEL6.4-Server-x86_64/Server/repodata/af55926cd66a289d9c7eaf352b2ed91ca0e28f91a505fff2b5c4c7cc2f1885e0-primary.sqlite.bz2: [Errno -3] Error performing checksum Trying ...
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1answer
53 views

%pre section of my.rpm is no longer executed on RHEL 6.7

There is a .spec file to build an rpm package for our software. In the %pre section of the .spec file there is a check if a previous major version of our software is installed. If yes, the ...
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24 views

rhel 6.x rebuild - reuse the same license files

I was wondering if it is possible to reuse the same files for reregistering a server after reinstallation. The hostname will be exactly the same: Is there any way to do that by using subscription-...
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311 views

Printing text to pdf using cups-pdf doesn't work

I installed cups-pdf 3.0 beta 2 on a Redhat 7 OS. I compiled the code manually (as per the instructions on their site) after I installed cups-devel-1.6.3-17.el7_1.1. I am running cups-devel-1.6.3-17....
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1answer
154 views

Using Device mapper thin provisioning on loop devices

I have several KVM raw files that are read only (about 100gb). I am adding these raw files as loopback devices. I then create a snap file to allow the VM to have read/write access to its disk. This ...
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81 views

after power outage no permissions to access samba share from windows machines on the same domain

I am running a ClearCase server on RHEL 6.7. We had a power outage last night (for the life of me I do not know why we don't have damn UPS). At any rate, when the machine was brought back up, we are ...
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29 views

IP aliasing in Linux

The correct way to assign multiple ip addresses to one LAN card/NIC is ip aliasing such as eth-0:0 and eth-0:1. You would go and create separate network-scripts for each alias and assign a different ...
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383 views

Redhat error while loading shared libraries: libkeyutils.so.1: cannot open shared object file: Permission denied

I just installed and am trying to start rpcbind on my redhat 7 machine. I'm new to linux so I'm having some trouble figuring out what to do next. I'm running all of these commands as the root user. ...
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1answer
43 views

Java problem - RHEL

I have RHEL in a test environment and I wanted to install a program that initiates a script that mandates java. The script tests for Java binaries folder. I tried first to choose the java/bin ...
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61 views

What is the opposite of yum provides?

yum provides <command> tells you what package provides, for instance, /usr/bin/python. But how do I find out what commands are provided by a certain package?