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release: constrain ip_local_port_range #1560

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May 5, 2021
Merged

release: constrain ip_local_port_range #1560

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4 changes: 0 additions & 4 deletions packages/ecs-agent/ecs-sysctl.conf
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Original file line number Diff line number Diff line change
@@ -1,6 +1,2 @@
# ECS task role endpoint
net.ipv4.conf.all.route_localnet = 1

# Constrain ephemeral ports to the range documented for ECS
# https://docs.aws.amazon.com/AmazonECS/latest/APIReference/API_PortMapping.html
net.ipv4.ip_local_port_range = 32768 60999
3 changes: 0 additions & 3 deletions packages/kubernetes-1.20/kubelet-sysctl.conf
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@@ -1,5 +1,2 @@
# Overcommit handling mode - 1: Always overcommit
vm.overcommit_memory = 1

# This is generally considered a safe ephemeral port range
net.ipv4.ip_local_port_range = 32768 60999
4 changes: 2 additions & 2 deletions packages/release/release-sysctl.conf
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Expand Up @@ -28,8 +28,8 @@ net.ipv4.ip_default_ttl = 255
# Enable IPv4 forwarding for container networking.
net.ipv4.conf.all.forwarding = 1

# Have a larger connection range available
net.ipv4.ip_local_port_range = 1025 65000
# This is generally considered a safe ephemeral port range
net.ipv4.ip_local_port_range = 32768 60999

# Connection tracking to prevent dropped connections
net.netfilter.nf_conntrack_max = 1048576
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