All modes will forcibly switch IP when the IP validity time expires. There are two types of IP switching modes in the dynamic version:
(1) Automatically switch IP for each HTTP request, which means that the crawler agent randomly provides a Proxy IP. This mode is suitable for some single-session crawler services that require a large number of IPs.
(2) The user switches the IP independently, and the crawler program sets the HTTP header Proxy-Tunnel: random number. When the random number is the same, different HTTP requests are forcibly designated as a proxy IP. This mode is suitable for some services that need to log in (multiple sessions use the same IP), cookie cache processing and other services that need to precisely control the timing of IP switching. (Requires "User Authentication" mode to be enabled)
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