無法 ping AWS EC2 實例

Question

我有一個在 AWS 中運行的 EC2 實例。 但是，當我嘗試從本地計算機 ping 時，請求總是超時

非常感謝任何幫助

以下是實例說明

Instance ID
i-0a94ae92b852256a9
Public DNS (IPv4)
ec2-3-15-2-190.us-east-2.compute.amazonaws.com
Instance state
running
IPv4 Public IP
3.15.2.190
Instance type
t2.xlarge
IPv6 IPs
-
Finding
Opt-in to AWS Compute Optimizer for recommendations. Learn more
Elastic IPs
Private DNS
ip-172-31-5-133.us-east-2.compute.internal
Availability zone
us-east-2a
Private IPs
172.31.5.133
Security groups
launch-wizard-1. view inbound rules. view outbound rules
Secondary private IPs
Scheduled events
No scheduled events
VPC ID
vpc-90caf4f8
AMI ID
Cannot load details for ami-0ca3e3965ada31684. You may not be permitted to view it.
Subnet ID
subnet-1a80a672
Platform details
-
Network interfaces
eth0
Usage operation
-
IAM role
-
Source/dest. check
True
Key pair name
Migite
T2/T3 Unlimited
Disabled
Owner
387291111076
EBS-optimized
False
Launch time
May 4, 2020 at 4:30:51 PM UTC+8 (18 hours)
Root device type
ebs
Termination protection
False
Root device
/dev/sda1
Lifecycle
normal
Block devices
/dev/sda1
Monitoring
basic
Elastic Graphics ID
-
Alarm status
None
Elastic Inference accelerator ID
-
Kernel ID
-
Capacity Reservation
-
RAM disk ID
-
Capacity Reservation Settings
Open
Outpost Arn
-
Placement group
-
Partition number
-
Virtualization
hvm
Reservation
r-01180bee9620140ae
AMI launch index
0
Tenancy
default
Host ID
-
Host resource group name
-
Affinity
-
State transition reason
-
State transition reason message
-
Stop - Hibernation behavior
Disabled
Number of vCPUs

Answer 1

默認情況下，AWS 彈性計算雲 (EC2) 端口受稱為安全組的應用層防火牆保護（您在啟動實例之前指定了此設置）。

默認情況下，在安全組中，沒有像響應 ping 的 icmp 端口那樣打開默認入口端口。 話雖如此，您想檢查您的 EC2 實例安全組並查找入站規則“ICMP”端口，確保它接受來自您的公共 IP 地址的流量，該地址啟動 ping。

參考：