Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.


Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.

Generic User Avatar

Ports


  • Please log in to reply
4 replies to this topic

#1 supertopsecret

supertopsecret

  •  Avatar image
  • Members
  • 35 posts
  • OFFLINE
  •  
  • Gender:Male
  • Local time:10:22 AM

Posted 26 November 2023 - 03:26 PM

Good afternoon? Can port 853 and 443 be used for calling or is it only port 53?


Edited by supertopsecret, 26 November 2023 - 09:57 PM.


BC AdBot (Login to Remove)

 


#2 1PW

1PW

  •  Avatar image
  • Members
  • 462 posts
  • OFFLINE
  •  
  • Gender:Not Telling
  • Location:North of the 38th parallel.
  • Local time:02:22 PM

Posted 26 November 2023 - 05:41 PM

Ordinarily, using TCP port 53 is the most frequent method for your device's DNS lookups. However, port 443 is popularized by some for DNS over HTTPS (DoH) and port 853 for DNS over TLS (DoT).

 

Browser “calling”, as you phrased it, still most frequently takes place on TCP ports 80 and 443 using the IP address.

 

HTH


Edited by 1PW, 26 November 2023 - 05:43 PM.

All viruses are malware but not all malware are viruses and if the malware doesn't self replicate it just isn't a virus. https://forums.malwarebytes.com/profile/17252-1pw/


#3 supertopsecret

supertopsecret
  • Topic Starter

  •  Avatar image
  • Members
  • 35 posts
  • OFFLINE
  •  
  • Gender:Male
  • Local time:10:22 AM

Posted 26 November 2023 - 10:12 PM

Ordinarily, using TCP port 53 is the most frequent method for your device's DNS lookups. However, port 443 is popularized by some for DNS over HTTPS (DoH) and port 853 for DNS over TLS (DoT).

 

Browser “calling”, as you phrased it, still most frequently takes place on TCP ports 80 and 443 using the IP address.

 

HTH

     Good evening. I just meant because my cellular is hooked up to the domain name system? Plus my mini cellular tower uses port 53 Apple just did a recent update (Couple summers ago/two summers ago) to where you're able to manually configure dns certificates now on phones and dial or use the internet that way? Except, I just learned Port 53 prevents it from filtering? It also uses Port 4500 which is for Vpn? Since that's what IpSec stands for?


Edited by Chris Cosgrove, 01 December 2023 - 04:36 AM.
Formatting


#4 1PW

1PW

  •  Avatar image
  • Members
  • 462 posts
  • OFFLINE
  •  
  • Gender:Not Telling
  • Location:North of the 38th parallel.
  • Local time:02:22 PM

Posted 26 November 2023 - 10:37 PM

Although I am just rewording what I posted above, if your device seeks a TCP connection, it may first establish the current IP address of the destination. That is a DNS lookup transaction.

 

When attempting a cellular connection to a distant cellular device, it is possible to initiate an Internet-based call with most cell phones, or you may choose a connection through your common carrier's cellular network.

 

HTH


All viruses are malware but not all malware are viruses and if the malware doesn't self replicate it just isn't a virus. https://forums.malwarebytes.com/profile/17252-1pw/


#5 cryptodan

cryptodan

    Bleepin Madman


  •  Avatar image
  • Members
  • 35,304 posts
  • ONLINE
  •  
  • Gender:Male
  • Location:USA
  • Local time:02:22 PM

Posted 09 December 2023 - 06:03 PM

Calling in what sense of the word?

US Navy Veteran from 2002 to 2006

Masters in Computer and Digital Forensics Expert - Stevenson University Alumni 2015

Arch Desktop - https://termbin.com/epij

Arch Laptop - https://www.termbin.com/dnwk

Ubuntu Server - https://termbin.com/zvra





1 user(s) are reading this topic

0 members, 1 guests, 0 anonymous users