云服务器
Alibaba Cloud Linux (previously known as Aliyun Linux) is a Linux distribution optimized for Alibaba Cloud environments. The version you mentioned, Alibaba Cloud Linux 2.1903, refers to a specific release of Alibaba Cloud Linux 2, which is based on Red Hat Enterprise Linux (RHEL) 7 and is fully compatible with CentOS 7.
Key Details About Alibaba Cloud Linux 2.1903:
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Release Date:
- The "1903" in the version number indicates a release from March 2019 (similar to how CentOS/RHEL versions are named).
- It is part of the Alibaba Cloud Linux 2.x series.
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Base System:
- Compatible with RHEL 7/CentOS 7 (uses the same package ecosystem).
- Includes optimizations for Alibaba Cloud ECS instances (such as improved kernel performance and cloud-specific drivers).
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Kernel:
- Uses a customized Linux kernel (typically newer than stock RHEL 7) for better cloud performance.
- Includes optimizations for Alibaba Cloud infrastructure (e.g., NVMe, ESSD storage, and networking enhancements).
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End of Support (EOL):
- Since Alibaba Cloud Linux 2 is based on RHEL 7, it follows a similar lifecycle.
- RHEL 7 (and thus Alibaba Cloud Linux 2) will reach End of Maintenance Support on June 30, 2024.
- Users are encouraged to migrate to Alibaba Cloud Linux 3 (based on RHEL 8) for long-term support.
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Usage on Alibaba Cloud:
- Pre-installed on some Alibaba Cloud ECS instances.
- Supports cloud-init for automated instance configuration.
- Includes tools like
aliyun-servicefor cloud integration.
How to Check Your Version?
Run the following command on an Alibaba Cloud Linux system:
cat /etc/alinux-releaseor
cat /etc/os-releaseShould You Still Use Alibaba Cloud Linux 2.1903?
- If you are running it in production, consider upgrading to Alibaba Cloud Linux 3 for extended security updates.
- Alibaba Cloud Linux 3 offers better performance, newer software packages, and longer-term support.
Would you like help with migration steps or checking for updates?