Stopping (The Polipo Manual)

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### 2.3 Stopping Polipo and getting it to reload

Polipo will shut down cleanly if it receives `SIGHUP`, `SIGTERM` or `SIGINT` signals; this will normally happen when a Polipo in the foreground receives a `^C` key press, when your system shuts down, or when you use the `kill` command with no flags. Polipo will then write-out all its in-memory data to disk and quit.

If Polipo receives the `SIGUSR1` signal, it will write out all the in-memory data to disk (but won’t discard them), reopen the log file, and then reload the forbidden URLs file (see Forbidden).

Finally, if Polipo receives the `SIGUSR2` signal, it will write out all the in-memory data to disk and discard as much of the memory cache as possible. It will then reopen the log file and reload the forbidden URLs file.