") server was coded at uc berkley3. this was back in the days when everyone on the net ( called arpanet back then ) trusted each other completely and none of the participants were motivated to cause problems. somehow, good old dns survived this sheltered childhood and thrives toda…"
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T1557.001Name Resolution Poisoning and SMB Relay
86%
"it ’ s a simple matter for attackers to craft fake packets spoofing a query source, so if they can fake thousands of queries from the victim ’ s ip address, that tsunami of responses will return to overwhelm the victim. a bonus for the attacker is that, to the victim, it will app…"
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T1498Network Denial of Service
72%
"except by ip address. if “ f5. com ” failed to be published online, every single internet site and service we ran would be invisible. this means web servers, vpns, mail services, file transfer sites — everything. even worse, if hackers could change the dns records, then they coul…"
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T1557.001Name Resolution Poisoning and SMB Relay
72%
"use it to steal microsoft outlook credentials16. so, it ’ s an attack that shouldn ’ t be taken lightly. a good defense against this to run dns security extensions ( dnssec ) on the dns server, which adds public - privacy cryptographic keys to authenticate records. adoption is sl…"
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T1498Network Denial of Service
72%
"##ns services. dyn was running dns services for many major organizations, so when they were drowned by a flood of illegitimate packets, so were companies like amazon, reddit, fivethirtyeight, and visa5. there are many ways to knock out dns service, the simplest being a stream of …"
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T1557.001Name Resolution Poisoning and SMB Relay
54%
"phishing expeditions by using known server names in their phony baloney emails. many organizations run dns on the inside of the network, advertising local area network ( lan ) resources for workstations. some smaller organizations run split - horizon dns servers14 that offer up i…"
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T1498.001Direct Network Flood
31%
"##ns services. dyn was running dns services for many major organizations, so when they were drowned by a flood of illegitimate packets, so were companies like amazon, reddit, fivethirtyeight, and visa5. there are many ways to knock out dns service, the simplest being a stream of …"
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Summary
Since the Internet can’t survive without DNS, let’s make our best effort to defend it.