R is a free programming environment, mainly used (but not limited to) for statistical analysis. R is maintained by R Foundation. RStudio is a free integrated development environment (IDE) for R programming language.
This guide requires:
Continue reading “Install R and RStudio on CentOS 7”
Step 0. Prelimenaries
Run yum update
Stop the firewall
To make the ports accessible i.e. for clustering nodes use 5672, 4369, and 25672.
$ sudo systemclt stop firewall-cmd
The above command will disable SELinux for the session i.e. until next reboot – to permanently disable it set SELINUX=disabled in /etc/selinux/config file.
Set host names
Doing so later will most probably break the installation.
We’ll name the nodes/VMs as rabbit1 (192.168.40.192) and rabbit2 (192.168.40.193) – the default is localhost.
Continue reading “Rabbitmq Cluster on CentOS 7”