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AWS parallelcluster documentation change

Service: parallelcluster · 2025-05-03 · Documentation low

File: parallelcluster/latest/ug/headnode-connect-v3.md

Summary

Reworded instructions for connecting to head node with minor phrasing changes and grammatical improvements. No technical changes to authentication methods or security configurations.

Security assessment

Changes are purely stylistic/grammatical improvements (e.g., 'Log in by using' to 'You can use... to log in'). No new security controls, vulnerabilities, or security features are added or modified. Existing security-relevant content (SSH keys, IAM policies for SSM) remains unchanged in substance.

Diff

diff --git a/parallelcluster/latest/ug/headnode-connect-v3.md b/parallelcluster/latest/ug/headnode-connect-v3.md
index 8ecd952dd..3ac82eaba 100644
--- a//parallelcluster/latest/ug/headnode-connect-v3.md
+++ b//parallelcluster/latest/ug/headnode-connect-v3.md
@@ -7 +7 @@
-When using AWS ParallelCluster, you can connect to the cluster head node to run jobs, view results, manage users, and monitor the cluster and job status. Connect to the cluster head node instance by using the following methods:
+When you use AWS ParallelCluster, you can connect to the cluster head node to run jobs, view results, manage users, and monitor the cluster and job status. To connect to the cluster head node instance, use one of the following methods:
@@ -9 +9 @@ When using AWS ParallelCluster, you can connect to the cluster head node to run
-  * Log in by using `ssh` with a [key pair](./install-v3.html#set-up-keypair). Specify the private key in [HeadNode](./HeadNode-v3.html) / [KeyName](./HeadNode-v3.html#yaml-HeadNode-Ssh-KeyName) in the cluster configuration. For more information, see [Connect to your Linux instance using SSH](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/AccessingInstancesLinux.html) in the _Amazon EC2 User Guide for Linux Instances_.
+  * You can use `ssh` with a [key pair](./install-v3.html#set-up-keypair) to log in. Specify the private key in [HeadNode](./HeadNode-v3.html) / [KeyName](./HeadNode-v3.html#yaml-HeadNode-Ssh-KeyName) in the cluster configuration. For more information, see [Connect to your Linux instance using SSH](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/AccessingInstancesLinux.html) in the _Amazon EC2 User Guide for Linux Instances_.
@@ -11 +11 @@ When using AWS ParallelCluster, you can connect to the cluster head node to run
-  * Log in by using the `pcluster ssh` command line interface (CLI) command. Specify the private key in the cluster configuration [HeadNode](./HeadNode-v3.html) / [KeyName](./HeadNode-v3.html#yaml-HeadNode-Ssh-KeyName). For more information, see [pcluster ssh](./pcluster.ssh-v3.html).
+  * You can use the `pcluster ssh` command line interface (CLI) command to log in. Specify the private key in the cluster configuration [HeadNode](./HeadNode-v3.html) / [KeyName](./HeadNode-v3.html#yaml-HeadNode-Ssh-KeyName). For more information, see [pcluster ssh](./pcluster.ssh-v3.html).
@@ -13 +13 @@ When using AWS ParallelCluster, you can connect to the cluster head node to run
-  * Connect to the cluster head node by using an SSM session. You must add the `AmazonSSMManagedInstanceCore` managed policy to [HeadNode](./HeadNode-v3.html) / [AdditionalIamPolicies](./HeadNode-v3.html#yaml-HeadNode-Iam-AdditionalIamPolicies) in the cluster configuration to connect by using an SSM session. For more information, see [SSM session manager](https://docs.aws.amazon.com/systems-manager/latest/userguide/session-manager.html) in the _SSM User Guide_.
+  * You can use an SSM session to connect to the cluster head node. You must add the `AmazonSSMManagedInstanceCore` managed policy to [HeadNode](./HeadNode-v3.html) / [AdditionalIamPolicies](./HeadNode-v3.html#yaml-HeadNode-Iam-AdditionalIamPolicies) in the cluster configuration to connect by using an SSM session. For more information, see [SSM session manager](https://docs.aws.amazon.com/systems-manager/latest/userguide/session-manager.html) in the _SSM User Guide_.
@@ -15 +15 @@ When using AWS ParallelCluster, you can connect to the cluster head node to run
-  * Connect to the cluster head node by using Amazon DCV. For more information, see [Connect to the head and login nodes through Amazon DCV](./dcv-v3.html).
+  * You can use Amazon DCV to connect to the cluster head node. For more information, see [Connect to the head and login nodes through Amazon DCV](./dcv-v3.html).
@@ -17 +17 @@ When using AWS ParallelCluster, you can connect to the cluster head node to run
-  * When you use the PCUI, you can also connect to the cluster head node by using an Amazon EC2 Connect command that the UI provides.
+  * When you use the PCUI, you can also use an Amazon EC2 Connect command that the UI provides to connect to the cluster head node.