Linux – Managing a server over SSH

yes, using ssh port forwarding.

ssh -L 80:localhost:80 name-of-remote-system

This will send any browser connection to port 80 on your local machine over ssh to the remote machine. Once there, it will continue to localhost (the machine you used ssh to connect to), port 80.

I am assuming you want to connect to the enp2s0f0 interface of the server (all other interfaces (except loopback) are DOWN).

From the logs you can see that DHCP requests on that interface are timing out. From the output of ip a you can see that the interface only has an IPv6 link-local address.

You should either fix DHCP or manually assign an IPv4 address to the interface (ip addr add x.x.x.x/24 dev enp2s0f0). Alternatively you can use IPv6.

EDIT: More questions:

• Are the 2 machines directly connected?
• Can you tell us more about the client? What do ip a, ip r, and iptables-save output on the client?
• What does iptables-save output on the server? Note that iptables -vnL doesn't print all the rules.
• Can you ping the server from the client? (e.g. ping 192.168.10.10)
• Can you arp ping the server from the client? (e.g. arping -I eth0 192.168.10.10) do you get a reply? is the MAC address in the reply correct? (it should be 20:89:84:77:4b:2a).
• If you run tcpdump on the server (tcpdump -n -i any port 22) and try ssh-ing in what does tcpdump output?

EDIT 2: Your client and server should have different IP addresses. Make the client 192.168.10.9 and the server 192.168.10.10.