Month: April 2022

4.5.4 Configuring the firewallThe firewall has to be enabled for the DNS service:firewall-cmd –permanent –zone=public –add-service=dnsAnd reload the configuration:firewall-cmd –reload4.5.5 Back up the main configuration filesMake an initial backup copy of the main bind config files:cp /etc/named.conf /etc/named.conf_bckcp /etc/named.rfc1912.zones /etc/named.rfc1912.zones_bck4.5.6 Set up the DNS server with a static IP addressSee also Appendix B of the […]

4.4.3 Firewall configurationThe DB2 container installation requires the ports 50000 and 50001 to be open and OpenShift on ESXi Virtual servers require port 443.Note that Red Hat subscription-manager uses port 443 to register the RHEL 8.0 Linux server after naming the server using the hostnamectl command and the oc client uses port 6443 for the […]

4.3 Docker Container installationThe Docker Container system is an open-source containerization platform. A detailed overview can be found at:https://docs.docker.com/get-started/overview/For the full screenshots for installation of Docker, see page 61 – 64 of the documents,IBMCloudPrivateP8ContainerCPITInstallationonRedHatEnterpriseLinux8.0.docx on the link:https://doi.org/10.13140/RG.2.2.27358.18246Entitled: IBM Cloud Private P8 Container CPIT Installation on RedHat Enterprise Linux 8.0. The Docker commands (sections 4.3.3 to […]