Computing support over internet with SSH and IPV6
Hi,
I want to be able to do some computing support over the internet with people from my family. This is something completely new to me, but it would be very convenient.
To do so, I have enabled remote login in the Sharing section of the GNOME settings. The internet provider of the remote computer will use IPv6 (well I configured it so).
I have a few questions since I must be sure before giving back the computer that this will work well. If needed I can ask them separately.
1. How to find the remote computer IPv6 address?
My guess is that I have to use the second inet6 line that I found with the ifconfig command:
$ ifconfig
...
wlp18s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.0.11 netmask 255.255.255.0 broadcast 192.168.0.255
inet6 fe80::1e65:9eff:fe67:c44b prefixlen 64 scopeid 0x20<link>
inet6 2a01:e35:8a23:6a0:1e65:9eff:fe67:c44b prefixlen 64 scopeid 0x0<global>
...
2. How to connect to the remote computer using SSH?
Using the IPv6 address I might have found with the previous question, I was thinking of using the following command:
ssh root@2a01:e35:8a23:6a0:1e65:9eff:fe67:c44b
It works when both computers are on a local network but I want to be sure.
3. Should I configure the remote computer router if it is truly using IPv6?
Well, I have very little knowledge on that matter.
4. Is it dangerous for an average user to have his firewall disabled?
In order for the user to be able to watch TV on his computer (see question 44951), I have no other solution than disabling the firewall. So here I don't need to configure it for SSH.
Do you think it is high risk for an average user (mail, surf, very basic stuffs)?
What? Nononono. Never ever allow SSH as root.
You mean that
sudois better? The only use case of this SSH access is to be able to "repair" a broken system (rollback an update for example).