Intermediate LevelCloud Computing (AWS/GCP/Azure)
How do Systems Manager (SSM) Session Manager and Patch Manager manage EC2 fleet operations without SSH?
❓ Interview Prompt: Explain AWS Systems Manager (SSM), Session Manager (port-less shell access), SSM Agent, and Patch Manager baselines.
AWS Systems Manager (SSM) provides centralized visibility and operational control across EC2 fleets and hybrid servers.
1. SSM Session Manager (Port-less Terminal Access):
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Provides secure, audited browser and CLI shell access to EC2 instances without opening inbound SSH port 22 or assigning public IP addresses!
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All terminal commands and output streams are logged directly to CloudWatch Logs or S3 for audit compliance.
2. SSM Patch Manager:
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Automates OS security patch deployment across Linux and Windows instance fleets based on defined Patch Baselines.
Code Implementation Example
bash
# Starting an interactive secure terminal session via SSM (No SSH key or Port 22 required!)
aws ssm start-session \
--target i-0a1b2c3d4e5f6789a \
--region us-east-1💡Connecting to EC2 instance via AWS Systems Manager Session Manager.
🎯 Interview Key Takeaway
SSM Session Manager provides audited shell access without opening SSH port 22 or managing bastion hosts.
#Systems Manager#Session Manager#SSM#EC2 Security#Intermediate
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