Connection Information ethernet "None"

mazinoz · 06-19-2017, 06:53 PM

At the moment I'm running off a live USB stick "Serena" Linux Mint MATE. I started my browser then set firewall to deny anything in and out.

The Network icon in panel "Connection Information" says that for my ethernet card "Security None"

What am I doing wrong here? It is an ethernet over powerline connection to an ISP's router. Is there something I should be doing on my laptop? I'm just experimenting at the moment, no important data.

hydrurga · 06-19-2017, 07:12 PM

The Security field in the Connection Information refers to the security protocol with which you are connected to the router. On a normal wifi connection, it may read e.g. WPA/WPA2. In your case, you're directly plugged in to the router, thus no security is needed or in existence for that particular connection.

So, you're doing nothing wrong.

Shadow_7 · 06-20-2017, 03:49 AM

Or you're doing everything wrong.

$ sudo iptables-save

Doesn't actually save, but outputs your current rules in a format that could be used to restore. A lot of times I end up setting up all the right rules on all the wrong interfaces. Especially now that we've migrated away from eth0 and wlan0 to easdf;lkj and wasdf;lkj plus or minus a few chars.

But probably the former post in that the connection type doesn't have security, like ethernet or OPEN wireless.

mazinoz · 06-21-2017, 08:14 PM

Thank you both for your replies. I 'rfkill block all' on boot and disable wireless drivers and programs. I endeavour to use power over ethernet only, but a hacker still insists on a wireless connection! I've connected to internet, opened browser, set gufw to deny in & out. They don't like this, and DOS me and the fan on laptop and router start working furiously but my system is frozen.

The second reply I do not understand at all as I am a layperson, not a programmer, but find the iptables command handy.

AwesomeMachine · 06-21-2017, 10:54 PM

The second post just means that if you are connected by an actual wire, you don't need security from your system to the router.

mazinoz · 06-22-2017, 05:48 PM

Thanks, just needed reassurance. Just a bit jumpy over security. Telstra have helped me, in one instance with the police, to eradicate two or possibly three hackers in neighbourhood. One was hacking my bluetoothed remote control unit for my hearing aids! If anyone is remotely interested

https://www.dropbox.com/sh/rh7cyuzyu...O_eHM9sUa?dl=0

There is an article on issues relating to medical device security.