| CentOS 7 prep |
| ----------------- |
| |
| ```bash |
| #install stuff |
| sudo yum install java-11-openjdk maven git openssh-server wget perl-Digest-SHA |
| sudo yum group install "Development Tools" |
| |
| #setup passwordless ssh |
| ssh-keygen -t rsa -N '' -f ~/.ssh/id_rsa |
| ssh-keyscan -H localhost >> ~/.ssh/known_hosts |
| cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys |
| chmod 0600 ~/.ssh/authorized_keys |
| |
| #add java home to your env by appending this line to ~/.bashrc |
| export JAVA_HOME=/usr/lib/jvm/java-11-openjdk |
| |
| #optional: set OS limits - requires restart |
| cat <<EOF | sudo tee -a /etc/security/limits.conf > /dev/null |
| * hard nproc 65536 |
| * soft nproc 65536 |
| * hard nofile 65536 |
| * soft nofile 65536 |
| EOF |
| ``` |
