Imds properties for login nodes
Access to the login node's IMDS (and the instance profile credentials) is restricted to root user, cluster administrative user (pc-cluster-admin
by default) and operating system
specific default user (ec2-user
on Amazon Linux 2 and RedHat, and ubuntu
on Ubuntu 18.04.
To restrict IMDS access, AWS ParallelCluster manages a chain ofiptables
.
Note
Any customization ofiptables
orip6tables
rules can interfere with the mechanism used to restrict IMDS access on the login node.See
also Imds property setting.