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I'm using Mate, started with Slim, and all work perfect.
I'm configuring UFW like my firewall; i have no problems with it but when i test my system to find what open ports it has i always found one (it changes in each reboot) that it is being used by "mate-session". Is this normal?
Some points:
1.- To find open ports i run:
# nmap -T Aggressive -A -v 127.0.0.1 -p 1-65000
and it always report something like this (specific port change with each reboot):
Discovered open port 38587/tcp on 127.0.0.1
PORT STATE SERVICE VERSION
38587/tcp open unknown
2.- To check what process are using open port i run:
# sudo lsof +M -i4
and it report something like this:
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
dhcpcd 277 root 8u IPv4 10038 0t0 UDP *:bootpc
mate-sess 382 mono 11u IPv4 10486 0t0 TCP *:38587 (LISTEN)
3.- And for know what process is:
$ ps -p 382 -o comm=
$ mate-session
I don't have any program in my startup session preferences that need internet access (only Mate defaults and Parcellite).
Is this something normal?
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I don't know about Mate, but is that port open only on 127.0.0.1, or is it also open on your IP?
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It is probably your router connection and Mate, along with dhcpcd using it to manage your internet connection, if I'm not mistaken. Mine does always use two open ports on the address ewaller mentioned.
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Fyi, 127.0.0.1 is the default address for localhost. Basically, it is the ip interface that your computer uses to talk to itself. It's not really a big deal as that ip address isn't open to the outside.
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