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-rw-r--r--docs/env_variables.md4
1 files changed, 4 insertions, 0 deletions
diff --git a/docs/env_variables.md b/docs/env_variables.md
index fe9c6e07..3c69c0b6 100644
--- a/docs/env_variables.md
+++ b/docs/env_variables.md
@@ -517,6 +517,10 @@ checks or alter some of the more exotic semantics of the tool:
(empty/non present) will add no tags to the metrics. For more information,
see [rpc_statsd.md](rpc_statsd.md).
+ - `AFL_SYNC_TIME` allows you to specify a different minimal time (in minutes)
+ between fuzzing instances synchronization. Default sync time is 30 minutes,
+ note that time is halfed for -M main nodes.
+
- Setting `AFL_TARGET_ENV` causes AFL++ to set extra environment variables for
the target binary. Example: `AFL_TARGET_ENV="VAR1=1 VAR2='a b c'" afl-fuzz
... `. This exists mostly for things like `LD_LIBRARY_PATH` but it would