port 80

2 réponses [Dernière contribution]
damidu
Hors ligne
A rejoint: 03/30/2021

Hi,

I was watching a video about web development and (I'm not really sure about that) security/firewalling is a joke. If you want to pass data to a remote machine, use the port 80, or another open port. 25... Maybe 53.

So I was asking my self, for a better security. Monitor the traffic of open port of your servers.

damidu
Hors ligne
A rejoint: 03/30/2021

oh, basically, if you are paranoiac and I'm not sure and not an expert about that. There should be exist "program" to monitor all the traffic on a computer network.

So as I understand, all virus and crap pass on open port, 80, 25, ... It's open and standard everywhere :(

Maybe I'm to simplistic and packets are discarded automatically by the web server or mail server. I don't know but if I was a pirate, I would use open and standard ports. If you don't monitor the traffic and don't read your log files you can't see it.

damidu
Hors ligne
A rejoint: 03/30/2021

Thank you for this tips. iftop is really nice

I was asking myself about port 80 but now every thing on the web is encrypted. If you can pass data bidirectionally between client/server apps, you can't decrypt it. You see high bandwidth usage but you can't tell what it does. You need to check source ip address where data come from.