TencentCloud Lighthouse (Lighthouse) is a new-gen, out-of-the-box cloud server service developed for lightweight business scenarios to help small and medium-sized enterprises (SMEs) and developers conveniently and efficiently build small websites, blogs, forums, storage services, and various development, testing, and learning environments in the cloud. It is easier to use than traditional cloud server services and delivers applications at one stop by integrating and packaging basic cloud resources and popular open-source software, offering you the best way to get started with Tencent Cloud.
Lighthouse is easier to use than CVM. It integrates multiple Tencent Cloud services and application service capabilities and simplifies the advanced concepts and features of CVM, allowing you to focus more on business logic and innovation. For more information, please see Product Comparison.
For more information on Lighthouse and how to quickly get started with it, please see the following documents:
There are certain limits on the quota, ICP filing, and private network connectivity. For more information, please see Use Limits.
Currently, Lighthouse supports CentOS, Ubuntu, and Windows Server operating systems. It also supports application images that encapsulate operating systems and software (such as LAMP, WordPress, ASP.NET, Node.js, and BT-Panel).
For instances on Linux, you can log in remotely from a local SSH terminal. For instances on Windows, you can log in from a remote desktop over the RDP protocol.
Yes. After a Lighthouse instance is created, you can install applications or software programs as needed on it. The installation methods are the same as those on general servers, such as using the apt-get tool on Ubuntu or using the yum tool on CentOS.
Lighthouse is a conventional server service rather than a multimedia server service, and it doesn't provide sound card and graphics card components by default. Therefore, you cannot add a sound card or graphics card to the system.
You can host different websites on a Lighthouse instance, but if you already have a domain name or want to access your website at a domain name, you should determine whether you need to perform operations such as website ICP filing application according to the Lighthouse instance and domain name conditions .
You can copy local files to a Lighthouse instance or download the files on it to your local file system.
Tencent Cloud regions are completely isolated. This guarantees the maximum cross-region stability and fault tolerance. We will gradually deploy nodes in more regions for a wider coverage. We recommend you select the region closest to your end users to minimize the access latency and improve the download speed.
There are certain limits on private network connectivity between different Lighthouse instances. For more information, please see Region and Network Connectivity.
By default, Lighthouse accesses COS over the private network if they are in the same region and over the public network if they are in different regions. You can perform a verification in the following steps.
You can run the
nslookup command on the Lighthouse instance to resolve the COS domain name. If a private IP is returned, the access is over the private network; otherwise, it is over the public network.
examplebucket-1250000000.cos.ap-guangzhou.myqcloud.com is the destination bucket address, the
Address: 169.254.x.xx in the following returned result indicates that the access is over the private network:
Generally, a private IP address is in the format of
100.*.*.*, while a VPC IP address
169.254.*.*. Both IP formats are on the private network.
nslookup examplebucket-1250000000.cos.ap-guangzhou.myqcloud.com Server: xxx.xx.xx.xx Address: xxx.xx.xx.xx #53 Name: examplebucket-1250000000.cos.ap-guangzhou.myqcloud.com Address: 169.254.x.xx
No. After a Lighthouse instance is created successfully, you cannot change its private or public IP or bind an EIP to it.
No. If you need IPv6, please use CVM.
Yes. Lighthouse is connected to Cloud Access Management (CAM) and supports resource-level authorization. CAM can help you securely manage and control the access permissions, resources, and use permissions of your Tencent Cloud account. For more information, please see Overview.
Yes. You can view CloudAudit operation records in the following steps:
Lighthouse is billed in a prepaid (monthly subscription) manner. The purchase duration of a package can range from 1 month to 5 years. You can terminate an instance before it expires, and after it is terminated, you will get a refund on the remaining purchase duration. For more information, please see Refund Description.
No. The basic package you select at the time of purchase already includes a traffic package. After the actually used traffic exceeds the monthly traffic package limit in the selected basic package, the Lighthouse instance will be billed by instance outbound traffic. For more information on the basic package and excessive traffic, please see Billing Overview.
No. A Lighthouse instance is billed by the basic package in the monthly subscription billing mode, which includes resources such as traffic package. After the instance expires, you cannot get a refund on the remaining traffic in the traffic package or carry the remaining traffic of the current month over to the next month. You can select a basic package based on your actual needs at the time of purchase.
A Lighthouse image is a preconfigured template started and executed by Lighthouse, which contains preinstalled operating systems and software applications. You can use an image to create one or multiple instances. Lighthouse provides images on multiple operating systems such as Linux and Windows Server as well as images of applications such as LAMP and WordPress. Simply put, you can consider an image as an "installation disk" for Lighthouse.
Lighthouse supports the following image types:
You can use the application resetting feature to reinstall the operating system on the instance. This operation can restore the instance to the initial state upon startup, and it is an important way to restore the instance in case of system failures.
The default username on Ubuntu is
ubuntu, and the root account and password are not set in the installation process by default. If needed, you can enable root login in the settings in the following steps:
Log in to the Lighthouse instance with your Ubuntu account.
Run the following command to set the root password.
sudo passwd root
Enter the root password and press Enter.
Enter the root password again and press Enter.
If the following information is returned, the root password is set successfully.
passwd: password updated successfully
Run the following command to open the
sshd_config configuration file.
sudo vi /etc/ssh/sshd_config
Press i to switch to the editing mode, find
#Authentication, and change the value of the
PermitRootLogin parameter to
yes. If the
PermitRootLogin parameter is commented, remove the comment symbol (
#) from the first line as shown below:
#Authentication and change the value of the
PasswordAuthentication parameter to
yes as shown below:
sshd_configconfiguration file doesn't contain this configuration item, add
Press Esc, enter :wq, save the file, and return.
Run the following command to restart the SSH service.
sudo service ssh restart
Log in to the Lighthouse instance on Ubuntu as instructed in Logging in to Linux Instance from Remote Login Software:
freecommand different from the actual memory size?
After an instance is created successfully with the instance package of 1 GB memory, when you run the
free -m command to view the instance memory size, you will find that it is not the same as the actual memory, which is normal. The cause is as follows:
This problem will also occur when you run the
free -mcommand to view the instance memory size on a physical machine.
freecommand to query the memory size.
The returned information is as follows, indicating that the memory size is 990 MB, which is lower than the actual 1 GB.
total used free shared buff/cache available Mem: 990 258 69 0 662 573 Swap: 0 0 0
sudo dmidecode -t memory
The returned information is as follows, indicating that the memory size is 1024 MB, which is the same as the actual configuration.
# dmidecode 3.2 Getting SMBIOS data from sysfs. SMBIOS 2.8 present. Handle 0x1000, DMI type 16, 23 bytes Physical Memory Array Location: Other Use: System Memory Error Correction Type: Multi-bit ECC Maximum Capacity: 1 GB Error Information Handle: Not Provided Number Of Devices: 1 Handle 0x1100, DMI type 17, 40 bytes Memory Device Array Handle: 0x1000 Error Information Handle: Not Provided Total Width: Unknown Data Width: Unknown Size: 1024 MB Form Factor: DIMM Set: None Locator: DIMM 0 Bank Locator: Not Specified Type: RAM Type Detail: Other Speed: Unknown Manufacturer: Smdbmds Serial Number: Not Specified Asset Tag: Not Specified Part Number: Not Specified Rank: Unknown Configured Memory Speed: Unknown Minimum Voltage: Unknown Maximum Voltage: Unknown Configured Voltage: Unknown
free -mcommand queries the available memory of the instance, while
dmidecode -t memoryqueries the actual hardware memory size of the instance.
|Protocol||Ports That May Be Blocked|
|TCP||42, 135, 137, 138, 139, 445, 593, 1025, 1434, 1068, 3127, 3128, 3129, 3130, 4444, 5554, 5800, 5900, and 9996|
|UDP||1026, 1027, 1434, 1068, 5554, 9996, 1028, 1433, and 135–139|
You can unblock it as instructed in Manual Unblocking in the Anti-DDoS console.