Understanding your enemy is essential. These six sources will help you identify the most popular threat actor tactics, techniques, and procedures (TTPs).
C:\>dcdiag.exe /test:DNS Directory Server Diagnosis Performing initial setup: Trying to find home server... Home Server = FSA1DC01 * Identified AD Forest. Done gathering initial info. Doing initial required tests Testing server: Default-First-Site-Name\FSA1DC01 Starting test: Connectivity ......................... FSA1DC01 passed test Connectivity Doing primary tests Testing server: Default-First-Site-Name\FSA1DC01 Starting test: DNS DNS Tests are running and not hung. Please wait a few minutes... ......................... FSA1DC01 passed test DNS Running partition tests on : DomainDnsZones Running partition tests on : a1 Running partition tests on : ForestDnsZones Running partition tests on : Schema Running partition tests on : Configuration Running enterprise tests on : setadc.local Starting test: DNS Test results for domain controllers: DC: FSA1DC01.a1.local Domain: a1.local TEST: Basic (Basc) Warning: adapter  Intel(R) PRO/1000 MT Network Connection has invalid DNS server: 127.0.0.1 (FSA1DC01) Error: all DNS servers are invalid TEST: Records registration (RReg) Error: Record registrations cannot be found for all the network adapters Summary of test results for DNS servers used by the above domain controllers: DNS server: 192.168.201.3 (FSA1DC01) 1 test failure on this DNS server Name resolution is not functional. _ldap._tcp.setadc.local. faile d on the DNS server 192.168.201.3 Summary of DNS test results: Auth Basc Forw Del Dyn RReg Ext _________________________________________________________________ Domain: a1.local FSA1DC01 PASS FAIL PASS PASS PASS FAIL n/a ......................... setadc.local failed test DNS C:\>
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