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Questions tagged [rhel]

Red Hat Enterprise Linux (RHEL) is a distribution of the Linux operating system targeted at enterprise customers with emphasis on long-term stability and support.

Other support resources

Questions related to installing and running Red Hat Enterprise Linux are usually more on-topic on these sister sites:

Customers can file support cases in the customer portal.

1780 questions
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OpenSSL hangs at CONNECTED(00000003)

I am setting up the https connection of my AEM application in a RHEL server hosted in AWS. Followed the documentation provided by Adobe. For the 1st author instance it worked successfully, but on my 2nd server and 3 server, it didnt. I tried a…
leahkim23
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WatchService fires ENTRY_MODIFY sometimes twice and sometimes once

I am using this WatchService example from Oracle: import java.nio.file.*; import static java.nio.file.StandardWatchEventKinds.*; import static java.nio.file.LinkOption.*; import java.nio.file.attribute.*; import java.io.*; import…
halil
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LD_PRELOAD does not loaded on systemd

I am trying to inject a SO into a process that starts using systemd init system (using LD_PRELOAD), but it does not loaded into the new process. I complied a basic SO (unrandom.c): int rand(){ return 42; //the most random number in the…
Or Smolnik
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Equivalent in yum of apt-get update

In Debian derivatives, before installing software from apt using apt-get install xxx, it is necessary to run apt-get update. This refreshes the package lists so that dependencies are resolved correctly, etc. When using an RHEL instance, out of…
sffc
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4 answers

Vagrant and Red Hat Enterprise Licensing

Our team is starting to use Vagrant for development on Mac OS X machines so we can better simulate our Red Hat Enterprise Linux production environment. Our operations group says our Red Hat License only covers instances being run on our VMWare…
mitalia
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Unable to register with subscription-manager - 'NoneType' object has no attribute '__getitem__'

In rhel 7 server I am trying to install packages with yum. After getting error that I need to register my rhel7 with subscription-manager I got this error: command: subscription-manager register output: 'NoneType' object has no attribute…
fusu
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JAVA how to find the target file path that a symbolic link points to?

I'm trying to find a way in Java to figure out the file path that a symbolic link is pointing to. We have a system that monitors a symbolic link folder, does some stuff based on the file name, deletes that symbolic link file. What I need to do is…
edjm
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4 answers

Upgrading Docker on Amazon Linux AMI

I want to upgrade Docker to v1.8 on Amazon Linux. At the time of writing their internal yum package repository has: Docker version 1.7.1, build 786b29d/1.7.1. Things I have already tried Manually installing from the Docker project's repo Error:…
Hzmy
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Using strace fixes hung memory issue

I have a multithreaded process running on RHEL6.x (64bit). I find that the process hangs and some threads (of the same process) crash most of the time when I try to bring up the process. Some threads wait for shared memory between the threads to get…
umayneverknow
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5 answers

Configure Jenkins for different user.home

I am running Jenkins version 1.527 (I know there is a newer version but it is broken, I can't use the user interface in 1.528 and haven't gotten a chance to upgrade to 1.529) I am trying to change the user.home system property in Jenkins by doing…
TheDevOpsGuru
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5 answers

An error occured while installing charlock_holmes libicu

I'm trying to install Gitlab following this install script, but am running into an issue where the charlock_holmes gem fails to install. I'm not familiar with Ruby. My charlock_holmes-0.6.8 gem_make.out file is…
E-rich
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Python multiprocessing doesn't use all cores on RHEL6

I have been trying to use the python multiprocessing package to speed up some physics simulations I'm doing by taking advantage of the multiple cores of my computer. I noticed that when I run my simulation at most 3 of the 12 cores are used. In…
the.real.gruycho
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Returning application/json content-type for .json files on RHEL/Apache

OS is specifically RHEL6 running Apache2. So in my Apache configuration, I have: LoadModule mime_module modules/mod_mime.so And in /etc/mime.types, I have the following: application/json json Yet when requesting a…
Peter
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Discard old build in multi-branch pipeline job, doesn't really delete builds from server

I have multi-branch pipeline job in Jenkins: http://illinXXXX:XXXX/job/OC/configure and I checked the option for Discard old builds as below: I would have expected, that each new run after this change, it will delete old build from the server for…
arielma
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How to fix -- bash: /usr/bin/python: Too many levels of symbolic links

I wanted to make python3 my default on rhel so I followed the following at How to set Python3.5.2 as default Python version on CentOS? sudo ln -fs /usr/bin/python3 /usr/bin/python It changed the default to 3.6.8 root@rhel:~# python -V Python…
sectechguy
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