Help Center/ Cloud Bastion Host/ FAQs/ Product Consulting/ How Can I Configure Ports for a CBH Instance?
Updated on 2023-04-11 GMT+08:00
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How Can I Configure Ports for a CBH Instance?

To properly use CBH, configure the instance and resource security group ports by referring to Table 1.

Table 1 Inbound and outbound rule configuration reference

Scenario Description

Direction

Protocol/Application

Port

Accessing CBH Instances through a web browser (HTTPS)

Inbound

TCP

443

Accessing a CBH system through Microsoft Terminal Services Client (MSTSC)

Inbound

TCP

53389

Accessing a CBH Instance Through an SSH Client

Inbound

TCP

2222

Accessing CBH instances through FTP clients

Inbound

TCP

20~21

Remotely accessing Linux ECSs of CBH instances over SSH clients

Outbound

TCP

22

Remotely accessing Windows ECSs of CBH instances over the RDP Protocol

Outbound

TCP

3389

Accessing Oracle databases through CBH instances

Inbound

TCP

1521

Accessing Oracle databases through CBH instances

Outbound

TCP

1521

Accessing MySQL databases through CBH instances

Inbound

TCP

33306

Accessing MySQL databases through CBH instances

Outbound

TCP

3306

Accessing SQL Server databases through CBH instances

Inbound

TCP

1433

Accessing SQL Server databases through CBH instances

Outbound

TCP

1433

Accessing DB databases through CBH instances

Inbound

TCP

50000

Accessing DB databases through CBH instances

Outbound

TCP

50000

License servers

Outbound

TCP

9443

HUAWEI CLOUD services

Outbound

TCP

443

Accessing a CBH system through the SSH client in the same security group

Outbound

TCP

2222

SMS service

Outbound

TCP

10743 and 443

Domain name resolution service

Outbound

UDP

53
Parent topic: Product Consulting