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A computer that can only learn programming, not play games
Thursday, January 23, 2025 in Blog
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Personal Domain Security Practices: From Scan Attacks to Protection Strategies
Friday, January 17, 2025 in Blog
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Introduction In the internet era, domain security has become an issue that every internet user must pay attention to. Every day, countless automated tools scan every corner of the internet, looking for potential vulnerabilities. Many people believe …
Releasing Reserved Memory on a VPS
Tuesday, December 31, 2024 in Blog
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By default, the Linux kernel reserves a block of memory for kdump, and its size is controlled by the crashkernel parameter. Most application developers rarely trigger kernel panics, so you can recover this memory by editing /etc/default/grub. If you …
Monthly Challenge Reading Membership Is More Cost-Effective Than Expected
Tuesday, December 17, 2024 in Blog
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Protect yourself, stay away from people who need community rules to protect them
Sunday, December 15, 2024 in Blog
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How a vendor bypasses DNS blocking
Friday, December 13, 2024 in Blog
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Recently I noticed that the DNS public service IP is receiving abnormal traffic—tens of identical requests for the same domain every second, completely ignoring the DNS protocol and the global TTL value. At first I thought the IP belonged to an …