PHPWP博客No, Alibaba Cloud Linux 3 is NOT CentOS 7. They are completely different operating systems with different origins, kernels, and support lifecycles.
Here’s a clear breakdown:
1. Alibaba Cloud Linux 3
- Based on: OpenEuler (with significant contributions from Alibaba).
- Kernel: Uses an updated Linux kernel (typically 5.10+), optimized for cloud environments.
- Compatibility: Highly compatible with RHEL/CentOS 8/9 ecosystems, but not a direct clone of CentOS 7.
- Support: Actively maintained by Alibaba Cloud, with long-term support tailored for cloud workloads.
- Package Manager: Uses
dnf/yum(RPM-based), similar to CentOS/RHEL. - Target Audience: Cloud-native applications, high-performance computing, and Alibaba Cloud users.
2. CentOS 7
- Based on: Red Hat Enterprise Linux (RHEL) 7 source code.
- Kernel: Older kernel (3.10.x), end-of-life since June 30, 2024.
- Status: End-of-Life (EOL) – no more security updates or bug fixes from CentOS Project.
- Package Manager: Uses
yum. - Target Audience: Legacy enterprise applications (now largely deprecated due to EOL).
Key Differences:
| Feature | Alibaba Cloud Linux 3 | CentOS 7 |
|---|---|---|
| Base | OpenEuler | RHEL 7 |
| Kernel | 5.10+ | 3.10 |
| Status | Active & Supported | End-of-Life (EOL) |
| Package Manager | dnf/yum |
yum |
| Cloud Optimization | Yes (Alibaba Cloud native) | No |
| Compatibility | RHEL 8/9-like | RHEL 7 |
Recommendation:
- If you’re migrating from CentOS 7, consider moving to:
- Alibaba Cloud Linux 3 (if using Alibaba Cloud),
- Rocky Linux 8/9, AlmaLinux 8/9, or Ubuntu LTS as alternatives.
- Do not use CentOS 7 for new deployments due to its EOL status and security risks.
Let me know if you need help migrating from CentOS 7 to Alibaba Cloud Linux 3!