Cloud Monitor:Monitor your sites from PCs over the Internet

Background information

• For more information about how to activate and use the site monitoring feature, see Activate Network Analysis and Monitoring.

• If your site is configured with high-level firewall policy settings or a whitelist, you may need to add the IP addresses of detection points to the whitelist. This ensures that the detection points can access your site and are not blocked by the firewall. For more information, see How do I add the IP addresses of detection points to a whitelist if detection requests are identified as attacks or web scraping?

Procedure

1. Log on to the Cloud Monitor console.

2. In the left-side navigation pane, choose Network Analysis and Monitoring > Site Monitoring.

3. On the Monitoring Tasks tab, click Create Task and then click Single-step Detection.

4. On the Create Task page, select PC and then configure the parameters for the site monitoring task.

   • Basic Information

     • Task Type: HTTP(S)

       Parameter	Description
       Task Name	The name of the site monitoring task. The name must be 4 to 100 characters in length and can contain letters, digits, underscores (_), and Chinese characters.
       Monitored Address	The address of the site that you want to monitor. Valid values: GET (default) POST HEAD The monitored address is a URL. You can separate multiple monitored addresses with line breaks.
       Frequency	The interval at which the site is monitored. Valid values: 15 seconds, 1 minute, 5 minutes, 15 minutes, 30 minutes, and 60 minutes. For example, if you select 1 minute, detection points in each region monitor the destination address once per minute. You can also customize the monitoring cycle to specify a precise monitoring time. Note If you activated pay-as-you-go Cloud Monitor Basic (cms_post) or purchased subscription Cloud Monitor Basic (cms_edition) before 22:00:00 on September 13, 2022, you cannot set the monitoring frequency to 15 seconds.You must activate Network Analysis and Monitoring before you can use the 15-second monitoring frequency.
       Advanced Settings	For more information about the advanced settings for HTTP(S), see Advanced settings. Important Handshake protocols earlier than TLS 1.2 have security vulnerabilities. Therefore, Cloud Monitor does not support server-side TLS versions earlier than 1.2, which is consistent with mainstream browsers. If the tls: server selected unsupported protocol version 302 error is reported when a site monitoring task is running but you do not want to upgrade the TLS protocol on the server, you can select the minimum compatible TLS version on the Others tab in the Advanced Settings section.

     • Task Type: PING

       Parameter	Description
       Task Name	The name of the site monitoring task. The name must be 4 to 100 characters in length and can contain letters, digits, underscores (_), and Chinese characters.
       Monitored Address	The address of the site that you want to monitor. The monitored address is a domain name or an IP address. You can separate multiple monitored addresses with line breaks.
       Frequency	The interval at which the site is monitored. Valid values: 15 seconds, 1 minute, 5 minutes, 15 minutes, 30 minutes, and 60 minutes. For example, if you select 1 minute, detection points in each region monitor the destination address once per minute. You can also customize the monitoring cycle to specify a precise monitoring time. Note If you activated pay-as-you-go Cloud Monitor Basic (cms_post) or purchased subscription Cloud Monitor Basic (cms_edition) before 22:00:00 on September 13, 2022, you cannot set the monitoring frequency to 15 seconds.You must activate Network Analysis and Monitoring before you can use the 15-second monitoring frequency.
       Number Of Ping Packets	The number of times that the ping operation is performed. Default value: 10.

     • Task Type: DNS

       Parameter	Description
       Task Name	The name of the site monitoring task. The name must be 4 to 100 characters in length and can contain letters, digits, underscores (_), and Chinese characters.
       Monitored Address	The address of the site that you want to monitor. The monitored address is a domain name. You can separate multiple monitored addresses with line breaks.
       Frequency	The interval at which the site is monitored. Valid values: 15 seconds, 1 minute, 5 minutes, 15 minutes, 30 minutes, and 60 minutes. For example, if you select 1 minute, detection points in each region monitor the destination address once per minute. You can also customize the monitoring cycle to specify a precise monitoring time. Note If you activated pay-as-you-go Cloud Monitor Basic (cms_post) or purchased subscription Cloud Monitor Basic (cms_edition) before 22:00:00 on September 13, 2022, you cannot set the monitoring frequency to 15 seconds.You must activate Network Analysis and Monitoring before you can use the 15-second monitoring frequency.
       Type	The type of the DNS query. Valid values: A (default) MX NS CNAME TXT ANY AAAA
       DNS Access Protocol	The protocol for DNS access. Valid values: udp (default) tcp tcp-tls
       DNS Server	The type of the DNS server. Valid values: System default DNS Carrier DNS corresponding to the detection point Custom DNS
       Number Of Retries After DNS Failure	The number of retries after a DNS detection fails.
       Expected Resolution Result	Cloud Monitor verifies the domain name resolution result to check whether the result contains your expected domain name or IP address. If the expected list is a subset of the DNS list, the detection is successful. You can separate multiple domain names or IP addresses with commas (,).
       Matching Rule	The matching rule for the domain name or IP address.
       DNS Server Port	The port of the DNS server.

     • Task Type: TCP or UDP

       Parameter	Description
       Task Name	The name of the site monitoring task. The name must be 4 to 100 characters in length and can contain letters, digits, underscores (_), and Chinese characters.
       Monitored Address	The address of the site that you want to monitor. The monitored address is an IP address. You can separate multiple monitored addresses with line breaks.
       Frequency	The interval at which the site is monitored. Valid values: 15 seconds, 1 minute, 5 minutes, 15 minutes, 30 minutes, and 60 minutes. For example, if you select 1 minute, detection points in each region monitor the destination address once per minute. You can also customize the monitoring cycle to specify a precise monitoring time. Note If you activated pay-as-you-go Cloud Monitor Basic (cms_post) or purchased subscription Cloud Monitor Basic (cms_edition) before 22:00:00 on September 13, 2022, you cannot set the monitoring frequency to 15 seconds.You must activate Network Analysis and Monitoring before you can use the 15-second monitoring frequency.
       Port	The port of the TCP or UDP protocol. Default value: 80.
       Advanced Settings	For more information about the advanced settings for TCP or UDP, see Advanced settings.

     • Task Type: SMTP or POP3

       Parameter	Description
       Task Name	The name of the site monitoring task. The name must be 4 to 100 characters in length and can contain letters, digits, underscores (_), and Chinese characters.
       Monitored Address	The address of the site that you want to monitor. The monitored address is a domain name or an IP address. You can separate multiple monitored addresses with line breaks.
       Frequency	The interval at which the site is monitored. Valid values: 15 seconds, 1 minute, 5 minutes, 15 minutes, 30 minutes, and 60 minutes. For example, if you select 1 minute, detection points in each region monitor the destination address once per minute. You can also customize the monitoring cycle to specify a precise monitoring time. Note If you activated pay-as-you-go Cloud Monitor Basic (cms_post) or purchased subscription Cloud Monitor Basic (cms_edition) before 22:00:00 on September 13, 2022, you cannot set the monitoring frequency to 15 seconds.You must activate Network Analysis and Monitoring before you can use the 15-second monitoring frequency.
       Port	The port of the SMTP or POP3 protocol. Default value for the SMTP protocol: 25. Default value for the POP3 protocol: 110.
       Username	The username and password of the SMTP or POP3 server.
       Password
       Secure Connection	Specifies whether to use a secure connection for the SMTP or POP3 protocol. Valid values: Use Do not use

     • Task Type: FTP

       Parameter	Description
       Task Name	The name of the site monitoring task. The name must be 4 to 100 characters in length and can contain letters, digits, underscores (_), and Chinese characters.
       Monitored Address	The address of the site that you want to monitor. The monitored address is a domain name or an IP address. You can separate multiple monitored addresses with line breaks.
       Frequency	The interval at which the site is monitored. Valid values: 15 seconds, 1 minute, 5 minutes, 15 minutes, 30 minutes, and 60 minutes. For example, if you select 1 minute, detection points in each region monitor the destination address once per minute. You can also customize the monitoring cycle to specify a precise monitoring time. Note If you activated pay-as-you-go Cloud Monitor Basic (cms_post) or purchased subscription Cloud Monitor Basic (cms_edition) before 22:00:00 on September 13, 2022, you cannot set the monitoring frequency to 15 seconds.You must activate Network Analysis and Monitoring before you can use the 15-second monitoring frequency.
       Port	The port of the FTP protocol. Default value: 21.
       Anonymous Logon	Anonymous logon (default) Identity verification required If you select this parameter, you must set the username and password of the FTP server.
       Username	The username and password of the FTP server.
       Password

   • Define Assertions

     If you set Task Type to HTTP(S), you can use the Define Assertions feature to define availability conditions. These conditions are based on the content returned from a detection and determine whether the result meets your expectations. You can set multiple availability conditions for an assertion. The detection result is defined as available only when all conditions are met.

     Note

     • For HTTP detections, if you do not set an assertion for the status code, status codes less than 400 are considered available by default.

     • The assertion definition feature supports the HTTP(S), PING, WebSocket, DNS, TCP, and UDP protocols.

     If the default availability condition provided by Cloud Monitor does not meet your requirements, perform the following steps to add a new one.

     1. Click Add Condition Group.

     2. Set the parameters for the availability condition of the assertion.

        • Response Time: determines whether the response time meets expectations. Default value: less than 5,000 ms.

        • Status Code: determines whether the response status code meets expectations. Default value: less than 400.

        • Header: determines whether the fields in the response header meet expectations. You must customize the response header.

        • body, XML Field Of Body, and JSON Field Of Body: determine whether the content in the returned body meets expectations through text character matching, XML parsing (XPath), and JSON parsing (JSON Path). For more information, see XPath Syntax and JSON Path Syntax.

     3. Click Verify. You can view the verification result on the right.

        • If the verification is successful, you can create the site monitoring task.

        • If the verification fails, you can initiate a network diagnostic probe at the corresponding detection point.

     If a response that does not meet the conditions is returned, you can initiate PING and My Traceroute (MTR) network diagnostic probes at the corresponding detection point.

     Note

     MTR is a network diagnostic tool that combines the features of PING and traceroute.

     Enable Tracing Analysis: You can enable the Tracing Analysis feature as needed. This feature is supported only for HTTP(S) tasks. For more information, see Integration with OpenTelemetry.

     • Ingest Endpoint: Select a region based on your requirements.

     • Tracing Protocol: The supported protocols include OpenTelemetry W3C, Zipkin B3, and Jaeger.

   • Select Detection Points

     Parameter	Description
     IP Probe Type	The IP probe type of the detection points. This parameter can be set to IPv4, IPv6, IDC, or LastMile.
     Select Detection Points	The default and custom detection points for site monitoring. If the default detection points provided by Cloud Monitor do not meet your requirements, perform the following steps to customize detection points. Click Manage Custom Templates. Click Create Template. Enter a Template Name and select custom detection points. Click OK. Click OK.

   • Configure Alert Rules

     If the default alert rule provided by Cloud Monitor does not meet your requirements, perform the following steps to add a new one.

     1. Click Add Rule.

     2. Set the parameters for the rule description.

        Parameter	Description
        Rule Name	The name of the alert rule.
        Metric Name	The name of the metric in the alert rule. Valid values: Percentage of available detection points Percentage of available detection points = (Number of times that a domain name or IP address can be normally accessed in a detection cycle/Total number of detections) × 100%. Number of unavailable detection points The number of unavailable detection points is the number of times that a domain name or IP address cannot be normally accessed in a detection cycle. Number of available detection points The number of available detection points is the number of times that a domain name or IP address can be normally accessed in a detection cycle. Any error code (independent alert) An alert is triggered when the detection result of any detection point matches the status code. All error codes (combined alert) An alert is triggered only when the detection results of all detection points match the status code. Response time
        Comparison	The comparison operator for the threshold in the alert rule. Valid values: >= > <= < = != Year-over-year increase Year-over-year decrease Week-over-week increase Week-over-week decrease Period-over-period increase Period-over-period decrease
        Threshold And Alert Level	The alert level and the corresponding threshold. The alert notification method that corresponds to the Info alert level is Email + WebHook. Valid values for the consecutive alert period: 1, 2, 3, 4, 5, 10, 15, and 20.
        Tag	The tag of the alert rule.
        Auto Scaling	If you turn on Auto Scaling, the specified scaling rule is enabled when an alert is triggered. In this case, you must configure the Region, ESS Group, and ESS Rule parameters. For more information about how to create a scaling group, see Manage scaling groups. For more information about how to create a scaling rule, see Manage scaling rules.
        Simple Log Service	If you turn on Simple Log Service, the alert information is sent to the specified Logstore when an alert is triggered. In this case, you must configure the Region, ProjectName, and Logstore parameters. For more information about how to create a project and a Logstore, see Use LoongCollector to collect and analyze ECS text logs.
        Simple Message Queue (formerly MNS) - Topic	If you turn on Simple Message Queue (formerly MNS) - Topic, the alert information is sent to the specified topic in Simple Message Queue (formerly MNS) (SMQ) when an alert is triggered. In this case, you must configure the Region and topicName parameters. For more information about how to create a topic, see Create a topic.
        Function Compute	If you turn on Function Compute, an alert notification is sent to Function Compute for format processing when an alert is triggered. In this case, you must configure the Region, Service, and Function parameters. For more information about how to create a service and a function, see Quickly create a function.

     3. Click OK.

   • Configure Alert Contact Groups

     Parameter	Description
     Configure Alert Contact Groups	The alert contact groups to which alerts are sent. You must select at least one alert contact group. Alert notifications are sent to the alert contacts in the alert contact group. An alert contact group is a group of alert contacts and can contain one or more alert contacts.
     Mute Period	The interval at which an alert notification is resent after an alert is triggered but is not cleared. Valid values: 5 minutes, 15 minutes, 30 minutes, 60 minutes, 3 hours, 6 hours, 12 hours, and 24 hours. An alert is sent when a metric reaches its threshold. If the metric continues to exceed the threshold within the mute period, no more alert notifications are sent during the mute period. If the alert is not cleared after the mute period ends, Cloud Monitor sends another alert notification. Note You can click Advanced Settings to set this parameter.
     Effective Period	The period during which an alert rule is in effect. The alert rule checks for monitoring data that requires an alert only within the effective period. Note You can click Advanced Settings to set this parameter.
     Alert Callback	The callback URL that can be accessed over the Internet. Cloud Monitor sends HTTP POST requests to push alert notifications to the specified URL. Only HTTP requests are supported. For more information about how to configure alert callback, see Use the alert callback feature to send notifications about threshold-triggered alerts. To test the connectivity of an alert callback URL, perform the following steps: Click Test next to the callback URL. In the Webhook Test panel, you can check and troubleshoot the connectivity of the alert callback URL based on the returned status code and test result details. Note To obtain the details of the test result, configure the Test Template Type and Language parameters and click Test. Click Close. Note You can click Advanced Settings to set this parameter.

5. Click Create.

Related operations

References

• Monitor your sites from mobile devices over the Internet

• IP address pool of detection points for site monitoring

• Error codes and status codes

• Metrics

Advanced settings