Applying OS security updates

Unified Compute Platform (UCP) Advisor Software Installation Guide

Version

4.5.x

Audience

anonymous

Part Number

MK-92UCP120-13

Periodically apply security updates to the operating systems on the UCP Advisor Gateway VM, the UCP Advisor Master Node VM, and the UCP Advisor Worker Node VMs.

Note: Use this procedure to apply the security updates only on CentOS operating systems.

Verify that you have internet access to the UCP Advisor VMs.
Verify that all three VMs have been updated with Linux <host name> 3.10.0-1160.76.1.el7.x86_64 #1 SMP Wed Aug 10 16:21:17 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

The procedure listed below applies to the UCP Advisor Master Node VM and the UCP Advisor Worker Node VMs.

Using an SSH client, such as PuTTy, log on to the UCP Advisor Master Node VM as the ucpadmin user. Enter:
```
ssh ucpadmin@<master node vm address>
```
Check for updates. Enter:
```
sudo yum check-update
```
Get the list of available security updates. Enter:
```
sudo yum updateinfo list security all
```
Apply the latest security updates. Enter:
```
sudo yum -y update --security
```
Repeat steps 1-4 for both the UCP Advisor Worker Node VMs.