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Elastic Compute (KEC)
FAQs
Network
Why can't I log in to a KEC instance in SSH mode and the Ping operation fails?
Last updated：2021-08-04 11:26:16
To enhance the KEC instance security, each firewall does not contain any rule in initial state, and all ports are closed. You need to create rules to open corresponding ports. For example, to enable ping, you must add ICMP rules in the firewall. The following table lists common rules.
| Service | Protocol | Port | Source IP address |
|---|---|---|---|
| FTP | TCP | 21 | 0.0.0.0/0 |
| HTTP | TCP | 80 | 0.0.0.0/0 |
| HTTPS | TCP | 443 | 0.0.0.0/0 |
| Ping | ICMP | N/A | 0.0.0.0/0 |
| PPTP | TCP | 1723 | 0.0.0.0/0 |
| RDP | TCP | 3389 | 0.0.0.0/0 |
| SSH | TCP | 22 | 0.0.0.0/0 |
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