ssh doesnt work with public ip address but just locally

van helsing

12/22/23, 3:47 PM

I've a SSH server on my raspberry pi running on ubuntu. For a while I've used normally, then for some reason it stopped working with the public ip and when try to connect get this error:

ssh: connect to host: Network is unreachable

Recently I tried to create a bruteforce script for ssh and used that as a target. I think the two things are related, but I can't figure out how to fix it. On my desktop where another openssh server is activated, ssh works fine with public IP. Only with raspberry pi I've this problem (pc and raspberry use different port), i tried uninstalling openssh-serverand reinstalling it but it didn't work. I don't have any kind of firewall on my RPi and left default ssd_config settings except for Port and Gateway Ports (switched to yes).

EDIT:

$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000
    link/ether dc:a6:32:90:6b:58 brd ff:ff:ff:ff:ff:ff
3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether dc:a6:32:90:6b:5a brd ff:ff:ff:ff:ff:ff
    inet 192.168.0.198/24 brd 192.168.0.255 scope global dynamic noprefixroute wlan0
       valid_lft 150759sec preferred_lft 150759sec
    inet6 fdd7:21:9a00:9833:dad:b3f6:5ff6:baa4/64 scope global dynamic noprefixroute 
       valid_lft 2590904sec preferred_lft 603704sec
    inet6 2a0e:410:7b5:0:1515:b934:3d2f:a8d/64 scope global dynamic noprefixroute 
       valid_lft 2566sec preferred_lft 2504sec
    inet6 fe80::78b:7170:f144:1663/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
4: wlan1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000
    link/ether c2:94:3b:10:8a:e7 brd ff:ff:ff:ff:ff:ff permaddr c4:6e:1f:18:70:28

222

0 + 2

server

ssh

networking

port-forwarding

Andrea Corbellini

12/22/23, 3:49 PM

"Network is unreachable" suggests that your Raspberry Pi and your computer are on two different networks, or that the network is misconfigured. Please share the output of `ip a` from the computer, and the IP address of the Raspberry. `tracepath -n <raspberry-ip-address>` may also help

van helsing

12/22/23, 4:47 PM

ok so how can I solve it ?

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EN: ssh doesnt work with public ip address but just locally

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