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Questions tagged [redhat]

For issues relating to Red Hat platforms, products, and/or services.

Red Hat, Inc. is a company in the free and open source software sector, and a major Linux distribution vendor. Red Hat has become associated to a large extent with its enterprise operating system Red Hat Enterprise Linux () and with the acquisition of open-source enterprise middleware vendor . Red Hat provides operating-system platforms along with middleware, applications, and management products, as well as support, training, and consulting services.

For questions on a specific Red Hat products, consider using the tag for that product.

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Red Hat was acquired by IBM in July 2019.

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How to install vim on RedHat via commmandline

I am running a RHEL 7.2 (Maipo) on an AWS instance with commandline access. To my greatest surprise, vim needs to be installed and as I am fairly new to RedHat, I was at a loss initially as to the easiest way to install it, so I am adding it below…
Lefty G Balogh
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What is the difference between ~/ and ~ in Linux?

I am novice to Linux, using it a little more than a year. Can anybody help me resolve my question? When I use ~/ only it shows user home directory. Why does it not work in the case of using ~ alone to specify path to a file or directory?
Gowthaman Palanisamy
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Yum repositories don't work unless there are exceptions in the AWS firewall. How do I make the exceptions based on a DNS name?

When I try to install something via yum (e.g., yum install java), I get the following: Could not contact CDS load balancer rhui2-cds01.us-west-2.aws.ce.redhat.com, trying others. Could not contact any CDS load balancers:…
Propulsion
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RedHat daemon function usage

I'm working on an init script for Jetty on RHEL. Trying to use the daemon function provided by the init library (/etc/rc.d/init.d/functions). I found this terse documentation, and an online example (I've also been looking at other init scripts on…
quickshiftin
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How to install Xvfb (X virtual framebuffer) on Redhat 6.5?

I have tried to install the Xvfb on red-hat 6.5 using yum -y install xorg-x11-server-Xvfb but it is not installed and it is giving msg that No package xorg-x11-server-Xvfb available. Error: Nothing to do Plese help me to install Xvfb on Redhat…
Rahul
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Elasticsearch process memory locking failed

I have set boostrap.memory_lock=true Updated /etc/security/limits.conf added memlock unlimited for elastic search user My elastic search was running fine for many months. Suddenly it failed 1 day back. In logs I can see below error and process never…
Shades88
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What exact command is to install pm2 on offline RHEL

First of all it's not a duplicate question of below:- How to install npm -g on offline server https://stackoverflow.com/questions/40976100/how-to-installl-pm2-on-offline-server I install npmbox (https://github.com/arei/npmbox) on my offline REHL…
Jitendra Pancholi
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Will Java compiled in windows work in Linux?

My Java program is in working order when i use it under Windows(Eclipse and Bluej). I compress it to a Jar and send it to my red hat and bang. nothing works. It breaks on the weirdest things, such as text field set text will not show, JPasswordfield…
JavaLu
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Where is javac after installing new openjdk?

An additional jdk was installed and configured on RHEL5. yum install java-1.7.0-openjdk.x86_64 update-alternatives It appeared to work: java -version points to desired 1.7. However, javac -version still points to old 1.6. sudo update-alternatives…
Jacob
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top 'xterm': unknown terminal type

I have an error when run TOP command: >top 'xterm': unknown terminal type. > echo $TERM xterm > echo $DISPLAY DYSPLAY: Undefined variable. > cat /etc/redhat-release Red Hat Enterprise Linux Server release 6.3 (Santiago) > ls…
Marco Rocci
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puppet log file in redhat and centos

I am running puppet agent in CentOS and Redhat. I would like to see its log file but cannot find it. In these operating systems, I clearly specify logdir = /var/log/puppet in the puppet.conf, but upon checking this directory, it is empty. Note that…
Henry Vu
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Java OracleDB connection taking too long the first time

I'm having a problem when connecting to an Oracle database, it takes a long time (about ~5 minutes) and it sends the below shown exception. Most of the time, after the first error, the next connections for the same process work correctly. It is a…
iamedu
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RedHat 6/Oracle Linux 6 is not allowing key authentication via ssh

Keys are properly deployed in ~/.ssh/authorized_keys Yet ssh keeps on prompting for a password.
Olivier Refalo
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Ruby on Rails: no such file to load -- openssl on RedHat Linux Enterprise

I am trying to do 'rake db:migrate' and getting the error message 'no such file to load -- openssl'. Both 'openssl' and 'openssl-devel' packages are installed. Others on Debian or Ubuntu seem to be able to get rid of this by installing…
unknown (yahoo)
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Why does service stop after RPM is updated

I have a software package for which I created an RPM. I can't paste the entire RPM here for IP reasons, but here is the gist of the problem: %pre /sbin/pidof program if [ "$?" -eq "0" ] then /sbin/service program stop fi %post /sbin/chkconfig…
Sagar
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