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-1 votes
0 answers
55 views

Cant connect to a Hyper V VM with Putty via another Device [closed]

OS: Windows Server 2022 VM OS: Ubuntu Server 24.04 LTS Note: The VM is on the same network I tried to connect to the vm with putty via another device but after a few seconds I got an error message:...
0 votes
2 answers
194 views

Recover the IP address of a remote machine knowing its hostname + ip address of the network + sshkey registered

I want to remotely ssh a computed administered by only me. The machine is always on a fixed IP (network; I do not know the technical name for that). To ssh I use ssh [machine_name]@[machine_addr] (...
0 votes
0 answers
39 views

IPv4 failing, link-local IPv6 works

For some reason, I can't reach my laptop by SSH over WiFi on its IPv4 address, as it always just times out. However, connecting to it via link-local IPv6 works just fine. Pinging the laptop over its ...
1 vote
1 answer
645 views

Cannot ssh anymore via no-ip hostname, works with wan ip, nslookup gives nxdomain

After extensive search of this forum to no avail, I post my issue here. I have a small machine running pop!OS 22.04 at home that I use to host a few pages with nginx. To do so, I have a no-ip domain (...
5 votes
3 answers
2k views

Tune SSH for bad connections

What options can be used on Linux' OpenSSH Server and the ssh command itself (or their config files) to make ssh most reliable on flaky connections (eg. long distance WiFi)? Is it useful to tune the ...
0 votes
3 answers
2k views

Port forwarding issue - Connection refused when SSHing into a configured port

Foreword I do have an public IP, which I can verify on WhatIsMyIPAddress; When I try to connect to my computer from the outside via any of these ssh myusername@mypublicIP ssh -p 22 myusername@...
3 votes
3 answers
10k views

Access local network through one public IP

I have a local network built up with 8 computers connected to switch. Main node has a public IP, so I can ssh it from external network. Is it possible to access other 7 nodes without assigning public ...
26 votes
6 answers
187k views

How can I connect via SSH (Putty) to my VMWare machine (Ubuntu)?

I'm trying to connect to my VMWare (Workstation 7.1.3) machine (Ubuntu Lucid) via SSH. I've read through some other posts, but I can't figure this out. I ran ifconfig, and got a inet addr: and Bcast ...
0 votes
1 answer
5k views

ssh into WSL2 works on only some IP addresses

On Win10, in WSL 2 running Ubuntu 20, I've installed sshd running on a port different from 22, namely 2222. To the firewall I've added an incoming rule for TCP port 2222. From the windows command ...
4 votes
4 answers
52k views

Connection closed by [SERVER_IP]

I'm not a guru of ssh but somehow I cannot connect to server with IP and username: ssh -p [PORT] [USERNAME]@[SERVER_IP] Response is always: Connection closed by [SERVER_IP] The problem is on the ...
0 votes
0 answers
38 views

Router unable to obtain IP

I own a d-link router model DSL-2877AL.. used to work flawlessly in the past 8 months but recently the routers internet light will always stay red which indicates a failed PPPoe negotiation.. VDSL2 ...
6 votes
2 answers
4k views

Why does `curl <this machine's IP>` behave differently than `curl localhost`?

(Redirected from networkengineering.stackexchange) I have two Raspberry Pis on my network - let's call them Pi and Rho. I'm trying to set up port forwarding via ssh tunnel between them, such that an ...
0 votes
1 answer
105 views

Private and Public IPs are confusing

I discovered recently that there is two types of ip, i.e. the Public IP and the Private IP. I know that the Public IP is the one the external world can see and the Private IP is local to our network. ...
0 votes
1 answer
118 views

Configure static IP-adress to connect to device in subnet

I have a Dragino-Yun v2.4-shield, which is a device that can be connected with an Arduino to give it networking-capabilities. It has An Ethernet-Port and Wifi. I don't have a wifi-antenna at the ...
7 votes
1 answer
14k views

Why my external IP doesn't change when I am connected to a VPN?

I am not so into networking and I have the following doubt related VPN connection. Going to: https://whatismyipaddress.com/ I obtain that my IP address is 151.44.157.246 Ok then I connect to my VPN,...

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