Dimension scores are derived from public data and fields; weighted into the composite. Reference only.
igray.cc, also known as “igray博乐园,” is a personal WordPress blog. The site owner describes themselves as an IT professional, and the blog mainly documents technical tinkering, troubleshooting in production environments, and a small amount of hobby content around PCs, smartphones, digital gadgets, audio/video, and related topics. Based on the crawled content, technical posts make up the majority of the site, with a strong focus on infrastructure operations topics such as Linux, OpenStack, Ceph, MySQL, LVM, and OpenSSH/OpenSSL upgrades.
The site’s core value is not in providing online tools or commercial services, but in preserving technical know-how. Typical posts cover topics such as diagnosing disk space occupied by deleted files, building RPM packages on CentOS7 to upgrade OpenSSL/OpenSSH, recovering LVM data in production environments, handling MySQL MGR primary-secondary replication lag, and installing/configuring OpenStack Queens components including glance, nova, neutron, cinder, and horizon. Articles usually include the system environment, command output, configuration snippets, and step-by-step procedures, making them highly practical.
The site does not show any paid subscriptions, memberships, course sales, or consulting prices. Content is primarily available for public reading. The blog notice states that original works are licensed under CC BY-NC-SA 4.0, meaning they may be reposted and shared under the license in non-commercial scenarios.
The main advantage is that the cases are realistic, with many drawn from production environments. The troubleshooting paths are often fairly complete, making the content useful for operations engineers. Chinese-language explanations of commands also lower the barrier for beginners. The downsides are that, as a personal blog, it lacks systematic navigation and has an inconsistent update schedule. Some of the technology stacks covered are also relatively old, such as CentOS7, OpenStack Queens, and Ceph Luminous, so compatibility should be verified independently in newer environments. In addition, a blog and its comment section should not be treated as professional technical support.
This site is suitable for Linux system administrators, cloud platform operations engineers, OpenStack learners, traditional IDC/private cloud engineers, and technical users looking for concrete troubleshooting ideas. It is less suitable for users who want structured courses, official-documentation-level accuracy, or commercial support.
The site is a Chinese personal blog, and the main content does not appear to depend on overseas paid services or impose access restrictions. Judging by the domain and content format, users in mainland China can usually access it directly. If certain external links, such as GitHub or OpenSSL download sources, are unavailable, domestic mirrors can be used instead.
⚠ This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on igray.cc official site.
igray.cc is an China content_blog provider. TG4G tracks its product information, an overall rating of 5.0/10, and a China-accessibility score of China direct-connect friendly. Click "Visit Official Site" to reach igray.cc directly.