I don't understand whats going on with my rootserver...
I have reset iptables and just opened the port for ssh.
Now suddenly over night I see that there are a various of ports open:
21,80, 135, 139, 445, 3128
Could it be that vsftpd for example put rules in automatically to allow input on port 21?
I also tried disabling iptables with this command:
I'm running a CentOS Server with iptables to control ports. Today I scanned a server of a friend with nmap and results ended up with "All ports are filtered". I know there are something like 40 ports open, but they don't show up. So my question is, how can I do the same on my server. I don't want people to scan and see open ports on my server.