pcalvert wrote:
A firewall won't help much if the connection is initiated by a process (like malware) on your computer. You probably already knew that, but many people apparently don't.
Phil
Hi, Phil, thanks for answering
I guess my system is clean as I dont intall any apps from unstrusted sources, and most of my apps, but just two or three well known comes from debian's repository.. I think they were using some old opera's extension or the javascript process to rise a backdoor hole, as I suppose they can listening to open computers with theses security holes, and If they get any response of my computer, then they will start/running the remote hacking code .. As Ive recentlly disabled incoming traffic with the firewall, I understand they wont be able to start this talk with my computer (I dont think there's any malware in my system to start outcoming traffic), so they cant explode theses security holes in my outdated internet browser. Thought, I might be wrong here, Im not an expert,.. for the moment, the firewall seems to fixed it up. We will see soon, but I guess its fixed with the firewall, I hope so.
Ok, We will run this command If it happens again whith the firewall on, to see what it shows.
netstat -tulp |grep LISTEN
Code: Select all
netstat -tulp |grep LISTEN
(Not all processes could be identified, non-owned process info
will not be shown, you would have to be root to see it all.)
tcp 0 0 localhost:6341 0.0.0.0:* LISTEN 10913/megasync
tcp 0 0 localhost:6342 0.0.0.0:* LISTEN 10913/megasync
tcp 0 0 hall.local:6600 0.0.0.0:* LISTEN 18168/mpd
tcp 0 0 0.0.0.0:sunrpc 0.0.0.0:* LISTEN -
tcp 0 0 0.0.0.0:ssh 0.0.0.0:* LISTEN -
tcp 0 0 localhost:ipp 0.0.0.0:* LISTEN -
tcp 0 0 localhost:smtp 0.0.0.0:* LISTEN -
tcp6 0 0 [::]:1739 [::]:* LISTEN 2690/kdeconnectd
tcp6 0 0 [::]:1740 [::]:* LISTEN 2690/kdeconnectd
tcp6 0 0 [::]:1741 [::]:* LISTEN 2690/kdeconnectd
tcp6 0 0 [::]:1742 [::]:* LISTEN 2690/kdeconnectd
tcp6 0 0 [::]:1743 [::]:* LISTEN 2690/kdeconnectd
tcp6 0 0 [::]:sunrpc [::]:* LISTEN -
tcp6 0 0 [::]:1744 [::]:* LISTEN 2690/kdeconnectd
tcp6 0 0 [::]:1745 [::]:* LISTEN 2690/kdeconnectd
tcp6 0 0 [::]:1746 [::]:* LISTEN 2690/kdeconnectd
tcp6 0 0 [::]:1747 [::]:* LISTEN 2690/kdeconnectd
tcp6 0 0 [::]:1748 [::]:* LISTEN 2690/kdeconnectd
tcp6 0 0 [::]:1716 [::]:* LISTEN 2690/kdeconnectd
tcp6 0 0 [::]:ssh [::]:* LISTEN -
tcp6 0 0 localhost:ipp [::]:* LISTEN -
tcp6 0 0 localhost:smtp [::]:* LISTEN -