[SOLVED] OpenSSH hangs after entering server address

Trilby · 2016-10-05 12:07:49

This also again brings up my former question. If successfull connections have been using that IP address then they have originated from within the school's network. Even with an internet-facing IP address, connections from the outside might be blocked.

When I say "within the schools network" that does not mean it is from a school computer, just from a computer currently connected to their network. This could be your own computer, or your teachers personal computer but plugged into a school ethernet cable or connected to the schools wireless network.

seth · 2016-10-05 14:30:22

... or a VPN

@xu564856686
run "ip route" and " nmap --verbose -p 22 <server_ip>" (as suggested in comment #4 ...) and post the complete output, but the provided traceroute largely suggests the IP does simply not exist in your network section, ie. you're kinda trying to hack 127.0.0.1

Also, there's absolutely no reason to statsh this kind of IP - everyone would immediately have spotted that this is a private scope and asked in that direction and the discussion would have taken a much faster route.

R00KIE · 2016-10-05 16:54:40

seth wrote:

Also, there's absolutely no reason to statsh this kind of IP - everyone would immediately have spotted that this is a private scope and asked in that direction and the discussion would have taken a much faster route.

Not to mention that if the server is reachable from the internet on the default port, which according to the OP it is, then it has already been and continues to be scanned and probed 24/7.

xu564856686 · 2016-10-11 03:53:34

HiImTye wrote:

loqs wrote:
xu564856686 wrote:
No, the IP address starts with 172.21.
172.21.*.* is in the 172.16.0.0/12 range see
Private_network see also Classless_Inter-Domain_Routing#IPv4_CIDR_blocks to explain the notation.
essentially, you need the internet facing IP address of the server, not the private networking IP

I discovered that my school has changed to only allow SSH connection through a VPN, that is probably why they gave out an internal IP.

Arch Linux

#26 2016-10-05 12:07:49

Re: [SOLVED] OpenSSH hangs after entering server address

#27 2016-10-05 14:30:22

Re: [SOLVED] OpenSSH hangs after entering server address

#28 2016-10-05 16:54:40

Re: [SOLVED] OpenSSH hangs after entering server address

#29 2016-10-11 03:53:34

Re: [SOLVED] OpenSSH hangs after entering server address

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