How do I install Dynatrace Server?

This topic applies to Dynatrace Managed installations only.

Before you begin

What you need

Ensure that your network and firewall configuration makes the required Dynatrace Server ports available.

What if my company uses a privilege management system other than Sudo?

Before proceeding with the installation you need to set up the user account that will be used to run Dynatrace Managed processes. The user must be able to execute the /opt/dtrun/dtrun script with administrative privileges.

Following these steps you can install Dynatrace Managed by specifying the user and the command that replaces sudo, for example:

/bin/sh dynatrace‐managed‐installer.sh ‐‐system‐user dynatrace:dynatrace ‐‐sudo‐cmd  “/usr/bin/pbrun \$CMD”

Additionally, for maintenance purposes, please consider adding scripts from the locations below:

  • /opt/dynatrace-managed/uninstall-dynatrace.sh
  • /opt/dynatrace-managed/launcher/
  • /opt/dynatrace-managed/utils/

You might, for example, want to stop all Dynatrace Managed processes running on a node.

pbrun /opt/dynatrace-managed/launcher/dynatrace.sh stop

To install Dynatrace Server, follow the steps described below.

Note:
Dynatrace Managed installation requires English locale to work properly.

Step 1: Download the installer

  1. Open the Dynatrace Managed license activation email to display installation instructions.
  2. Log in to your Linux machine where you want to install Dynatrace Server.
  3. Copy the wget command line from the activation email and paste it into your terminal window. Wait for the download to complete and then begin the installation.

Step 2: Verify the Dynatrace Managed installer signature

The Dynatrace Managed installer file is digitally signed. The signature file is distributed along with the Dynatrace Managed installer. In conjunction with OpenSSL and the Dynatrace root certificate, the signature file can be used to verify the authenticity of the installer. The signature file has the same name as the installer, with a .sig extension.

To verify the installer file

  1. Download the Dynatrace root certificate file.
  2. Run the following OpenSSL command:

openssl cms -verify -binary -inform PEM -CAfile dt-root.cert.pem -content dynatrace-managed.sh -in dynatrace-managed.sg.sig > /dev/null

Step 3: Run the installer

You need root rights to install Dynatrace Managed Server. You can use su or sudo to run the installation script. To do this, type one of the following commands into the directory where you downloaded the installation script.

If you're on an Ubuntu Server
sudo /bin/sh dynatrace‐managed‐installer.sh
If you're using Red Hat Enterprise Linux
su ‐c '/bin/sh dynatrace‐managed‐installer.sh'
If you start a root session:
/bin/sh dynatrace‐managed‐installer.sh

Type Accept if you agree to the Dynatrace Managed Terms of use. Installation won’t continue until you complete this step. To quit installation press Ctrl+C.

Follow the onscreen prompts to proceed. The Dynatrace Managed installer works in interactive mode. It displays prompts for values like the installation path and user account. You can accept the default values by pressing Enter. To override the settings, type your choices in the terminal and press Enter.
Note: Please have your Dynatrace Managed license key available. You can’t complete installation without a license key.

What are the default settings?
  • Installation path (binaries): /opt/dynatrace-managed
  • Dynatrace Server data files: /var/opt/dynatrace-managed
  • The system user who runs Dynatrace processes: dynatrace
  • The system group who runs Dynatrace processes: dynatrace
Can I bypass the interactive mode?

To bypass all questions and install with default settings, run the installer with the –install-silent parameter. Be sure to provide your Dynatrace Managed license key as the –license parameter value.

What happens during installation?

Dynatrace Managed Cluster is a set of specialized components that have been configured to host your monitoring environment, process monitoring data, and to scale up for flawless operation.

The installer sets up the following components in the installation directory (by default, /opt/dynatrace-managed):

  • Pre-configured Java Runtime Environment (your operating system settings aren’t affected by this). Not visible in your alternatives options.
  • Cassandra-based Hypercube storage
  • Elasticsearch-based search engine
  • Dynatrace Server
  • Security Gateway

The installer also optimizes operating system settings:

  • Swap is turned off (with swapoff).
  • iptablesPREROUTING “ rules are enhanced to enable forwarding of communication to Dynatrace Server (via HTTPS on port 8021). To see the exact rules, type iptables -L -vt nat into your terminal.
  • readahead page cache is set to 512.
  • Limits for users are changed globally (unlimited locked-in-memory address space, unlimited address space, increased limit for number of processes and open files). See /etc/security/limits.conf for details.
  • max_map_count is modified.

The following system files and directories may be modified during installation of Dynatrace Managed:

/etc/hosts
/etc/sysctl.conf
/etc/pam.d/su
/etc/rc.local
/etc/security/limits.conf
/etc/security/limits.d/90-nproc.conf
/etc/sudoers
/etc/sudoers.d/
/etc/init.d/
/etc/init.d/rc*.d/
/etc/systemd/system/

Copy the environment URL that’s provided at the end of the installation process. Paste the address into your browser to complete the remainder of the installation. Setup is now complete.

Where can I find installation logs?

You can find the Dynatrace Server installation log file in the /opt/dynatrace-managed/installer/ directory. To easily identify the right log file, look for the installation date in the file name. For example, the log file of a successful installation performed on September 30th would be 20160930-173309-success-install-of-managed-installer.log

Step 4: Configure an admin user and an environment name

Type a name for your new monitoring environment.
Select a name that will allow you to easily identify the environment. This setting can be changed later once you access your Dynatrace Server dashboard.

You need to set up an administrative user for the Dynatrace Managed Server. You’ll need this user account to manage other user accounts and your monitoring environment.

Once you’re done with this part of the setup you’ll automatically be logged into your Dynatrace Managed Server. Your first monitoring environment is now ready!

Note:
Dynatrace Managed Server requires fixed IP assignment.

Next steps

After you’ve installed your Dynatrace Managed Server you can: