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How Do I Know If My EIP Bandwidth Has Been Exceeded? Symptom The bandwidth size configured when you buy a dedicated or shared bandwidth defines the maximum amount of outbound bandwidth supported. If an ECS running your web applications cannot be accessed smoothly from the Internet
How Do I Configure Policy-Based Routes for an ECS with Multiple Network Interfaces? Background If a cloud server has multiple network interfaces, the primary network interface can communicate with external networks by default, but the extended network interfaces cannot. To enable
Why Are There Intermittent Interruptions When a Local Host Accesses a Website Built on an ECS? Symptom After you build a website on an ECS, some users occasionally are unable to access the website through the local network. Troubleshooting Check the local network of the user. If the
Why Can't My ECS Access the Internet Even After an EIP Is Bound? Symptom An ECS with an EIP bound cannot access the Internet. Troubleshooting Checking Whether EIPs Are Blocked or Frozen Check whether the EIP is blocked. For details, see How Do I Unblock an EIP? Check whether the EIP
Why Is My ECS Unable to Communicate at a Layer 2 or Layer 3 Network? Symptom An ECS cannot ping the gateway of the subnet where the ECS resides. Troubleshooting Locate the fault based on the following procedure. Figure 1 Troubleshooting procedure Checking Whether the ECS Has Obtained
Manually Configuring IPv4 and IPv6 Policy-based Routes for a Windows ECS with Multiple Network Interfaces Scenarios This section describes how to configure policy-based routes for a Windows Server 2012 64-bit ECS with two network interfaces. IPv4: If IPv4 communication between cloud
Manually Configuring IPv4 and IPv6 Policy-based Routes for a Linux ECS with Multiple Network Interfaces (Ubuntu) Scenarios This section describes how to configure policy-based routes for an Ubuntu 22.04 server 64-bit ECS with two network interfaces. IPv4: If IPv4 communication between
Manually Configuring IPv4 and IPv6 Policy-based Routes for a Linux ECS with Multiple Network Interfaces (CentOS) Scenarios This section describes how to configure policy-based routes for a CentOS 8.0 64-bit ECS with two network interfaces. IPv4: If IPv4 communication between cloud
Automatically Configuring IPv4 and IPv6 Policy-based Routes for a Linux ECS with Multiple Network Interfaces (HEC 2.0/CentOS 8.0 or Later) Scenarios This section describes how to use an automation script to configure policy-based routes for a Linux ECS with two network interfaces.
Why Is Access from a Specific IP Address Still Allowed After a Network ACL Rule That Denies the Access from the IP Address Has Been Added? Network ACL rules have priorities. A smaller priority value represents a higher priority. Each network ACL includes a default rule whose priority
