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Removed ssh password auth #445

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merged 5 commits into from
Dec 17, 2024
Merged

Removed ssh password auth #445

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86cd6a5
added ssh-password removal
okankoAMZ Dec 12, 2024
1b0252f
ChallengeResponseAuthentication
okankoAMZ Dec 13, 2024
7dc1609
added KbdInteractiveAuthentication
okankoAMZ Dec 13, 2024
80cd039
Merge branch 'main' into ssh-auth
musa-asad Dec 17, 2024
60ee81c
Use `sudo`
musa-asad Dec 17, 2024
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15 changes: 15 additions & 0 deletions terraform/ec2/common/linux/main.tf
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Original file line number Diff line number Diff line change
Expand Up @@ -55,6 +55,21 @@ resource "aws_instance" "cwagent" {
vpc_security_group_ids = [module.basic_components.security_group]
associate_public_ip_address = true
instance_initiated_shutdown_behavior = "terminate"
# Provide a user_data script to disable SSH password authentication
user_data = <<-EOT
#!/bin/bash
# Disable password authentication for SSH
sudo sed -i 's/^#*PasswordAuthentication.*/PasswordAuthentication no/' /etc/ssh/sshd_config

# Disable challenge-response authentication for SSH
sudo sed -i 's/^#*ChallengeResponseAuthentication.*/ChallengeResponseAuthentication no/' /etc/ssh/sshd_config

# Disable keyboard-interactive authentication for SSH
sudo sed -i 's/^#*KbdInteractiveAuthentication.*/KbdInteractiveAuthentication no/' /etc/ssh/sshd_config

# Restart SSH service to apply changes
sudo systemctl restart sshd
EOT

metadata_options {
http_endpoint = "enabled"
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