Home • All articles tagged with TTL
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What exactly does DNS resolution do? I ran it with nslookup.
If the webpage won't open, first blame the DNS, but what exactly is DNS doing? I ran the entire parsing process using nslookup: recursive route asking, three-layer caching, TTL countdown. If you understand these steps, changing DNS doesn't take effect immediately or two computers find different IPs is no longer a mystery....
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Luban Router flashes U-Boot and gets stuck on the startup page, saves the brick and revives the notes
Fault phenomenon After flashing U-Boot (or Breed) for Luban (CreativeBox-CB3), the web background can no longer enter the system, and as soon as the browser is opened, it is the "U-Boot update page" - upload, restart, upload, dead loop. TTL serial port observation, and found that the machine always stops at Hit any key to stop autoboot, while manual bootm ... ...
