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Automatically Rotate DNS Servers #919

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merged 3 commits into from
Dec 20, 2023
Merged

Automatically Rotate DNS Servers #919

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3ce2755
rotate DNS servers
TheTechromancer Dec 20, 2023
9c4fc22
blacked
TheTechromancer Dec 20, 2023
a7218dd
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TheTechromancer Dec 20, 2023
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3 changes: 3 additions & 0 deletions bbot/core/helpers/dns.py
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Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,7 @@ def __init__(self, *args, **kwargs):
dns_queries_per_second = self._parent_helper.config.get("dns_queries_per_second", 100)
self._dns_rate_limiter = RateLimiter(dns_queries_per_second, "DNS")
super().__init__(*args, **kwargs)
self.rotate = True

async def resolve(self, *args, **kwargs):
async with self._dns_rate_limiter:
Expand Down Expand Up @@ -139,6 +140,8 @@ def __init__(self, parent_helper):

# copy the system's current resolvers to a text file for tool use
self.system_resolvers = dns.resolver.Resolver().nameservers
if len(self.system_resolvers) == 1:
log.warning("BBOT performs better with multiple DNS servers. Your system currently only has one.")
self.resolver_file = self.parent_helper.tempfile(self.system_resolvers, pipe=False)

self.filter_bad_ptrs = self.parent_helper.config.get("dns_filter_ptrs", True)
Expand Down