Install CentOS 7.6 Minimal
Prerequisites
- Internet access and web browser
- VMware (Workstation or Player) or another VM platform
- The CentOS host should have the following firewall configuration:
Direction Port Protocol Source Destination Purpose Outbound 443 HTTPS Open Collector raw.githubusercontent.com
Identify latest container versions.
Outbound 443 HTTPS Open Collector *.gcr.io
Download latest Open Collector software.
Outbound 443 HTTPS Open Collector get.docker.com
Download docker repositories. Outbound 443 HTTPS Open Collector cloud.google.com
Pull container images. Outbound 443 HTTPS Open Collector storage.googleapis.com
Auto-update feature. Outbound 443 HTTPS Open Collector console.cloud.google.com
Auto-update feature. Outbound 514 TCP - Syslog Open Collector Windows System Monitor Agent Syslog feed of data to LogRhythm SIEM. Outbound** 6514 TCP+TLS - Secure Syslog Open Collector Windows System Monitor Agent Secure syslog feed of data to LogRhythm SIEM. Outbound 8076 TCP - Influx/Vitals Open Collector Platform Manager Data feed for Centralized Metrics (LogRhythm 7.5+ only). Inbound 3000 HTTP User machine Open Collector View Open Collector metrics in Grafana. Inbound 22 SSH User machine Open Collector Interact with Open Collector. Inbound 5044 TCP - Lumberjack Beats Open Collector Method to send data from Beats collected outside the Open Collector. **indicates optional setting
Install CentOS 7 Minimal
- Download CentOS 7 Minimal from http://isoredirect.centos.org/centos/7/isos/x86_64/.
- Create a VM with the following settings:
- CPU: 8 cores (or more)
- RAM: 8 GB (or more)
- HDD: 50 GB (or more)
- DVD: CentOS-7-x86_64-Minimal-1908.iso
- User: In addition to the root user, create the following user:
username: logrhythm
password: <enter a password of your choice>
On initial boot, log in as the root user.
Add the new logrhythm user to the sudoers wheel:
CODEusermod -aG wheel logrhythm
- Reboot the VM, and log in as the logrhythm user.
OS Installation
- Boot your VM with your installation media attached to the virtual CD-ROM drive (.iso format).
- Select Install CentOS 7.
- Wait for the media check to complete.
- Once the CentOS 7 installer GUI starts, select your language localization settings, and click Continue.
The Installation Summary screen appears. - In the System section, click Network & Host Name. (This is required to get networking on your VM without manual configuration.)
- In the upper-right corner, click the toggle switch to On.
The VM retrieves an IP address and DNS settings using DHCP (IPs and MAC redacted for security reasons). - In the upper-left corner, click Done.
The Installation Summary screen appears. - In the Localization section, click Date & Time.
The Date & Time screen appears. Confirm the date and time are correct.
You can also use the Network Time (NTP) option (networking must be configured to use this option).- In the upper-left corner, click Done.
The Installation Summary screen appears. - In the System section, click Installation Destination.
The Installation Destination screen appears. - Ensure your local disk is selected. The recommended disk capacity is 50GB.
- In the upper-left corner, click Done.
The Installation Summary screen appears - In the bottom-right corner, click Begin Installation.
- During the installation process, you can configure a root password and additional users.
- To set a root password, click Root Password.
Click User Creation, and create a logrhythm user with a strong password.
You can also create a logrhythm user manually after installation.Once installation is complete, click Reboot in the lower-right corner.
Make sure to remove the installation media. The method for removal is hypervisor-specific.