A bash script to configure environment variables and set permissions for the folders

kerberos-configure-set-env.sh

sudo klist -k /var/lib/mongo/private/mon01.keytab
# Keytab name: FILE:/var/lib/mongo/private/mon01.keytab
# KVNO Principal
# ---- ------------------------------------------
#    2 mongodb/[email protected]

# Set the keytab file location in environment variable
echo "KRB5_KTNAME=/var/lib/mongo/private/mon01.keytab" | sudo tee /etc/sysconfig/mongod

# Change the folder ownership to mongod
sudo chown -R mongod:mongod /var/lib/mongo/private
sudo systemctl start mongod