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Title says it all. Looking at a Samsung S10 phone and would like to know if there are any ports opened on device by default?

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  • Setup adb and try this command: adb shell netstat -natup. To emulate factory default conditions, a factory reset is needed to go back to factory/pristine state. Safe mode might also work, but I never cross checked the two for opened ports, so can't say for sure. – Firelord Aug 30 '21 at 09:14
  • Need clarification: is the question about a specific device (Samsung S10 with Google and Samsung services), or vanilla Android (AOSP)? – Andrew T. Aug 30 '21 at 09:22
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    Open ports is a vague term. Do you mean listening ports or the ports which can be accessed externally? There can be some listening ports like 5555 used by ADBD and 5353 used by mdnsd. Both are used to discover devices on local network. But usually phones aren't accessible from internet, so open ports don't make sense. // @Firelord I think OP means listening ports. So netstat -nltup (or ss -nltup) gives more precise results. -a gives all results including the ports used for outgoing connections which aren't open ports technically. – Irfan Latif Aug 30 '21 at 10:15

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