All Questions
67
questions
-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:...
- 1
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 (...
- 13
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@...
- 209
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 ...
- 2,521
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 ...
- 1
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 ...
- 199
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. ...
- 25
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 ...
- 237
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,...
- 7,201
0
votes
0
answers
35
views
Could I mask my IP to be like my mobile data IP?
I don't have static IP, people at home don't have static IPs, in my country.The ISP at work gave my company static IPs for the office, and in order to protect itself against DDOS, he went to mobile ...
- 5,450
0
votes
0
answers
451
views
Is there a safe way to auto add a dynamic IP to /etc/hosts.allow file?
(I was forwarded from SO to here for help, so hopefully this is the correct section)
Is there a way to automatically add 2 or 3 dynamic IP's to the "/etc/hosts.allow" file on a CentOS 7 server?
I ...
- 233
1
vote
1
answer
284
views
strange ip address raspbian and I can no longer ssh [closed]
In the past I have been able to ssh into the pi easily but a couple of days ago I could no longer find the pi ip address in the router page. I made a fresh install of raspbian and plugged it into a ...
8
votes
2
answers
21k
views
Find the port number of current session in PuTTY
I have list of server names in the PuTTY saved sessions. I connected to one session and can know the IP address of the machine connected to using ifconfig for Ubuntu and ipconfig for Windows. But how ...
- 2,552
2
votes
0
answers
10k
views
ssh connect to host X.X.X.X port 22: connection refused
I am not able to connet to any remote server. It shows up this error.
I am able to ping the same ip address.
Also I checked sshd is running :
sudo service sshd status
ssh.service - OpenBSD Secure ...
- 21
-1
votes
1
answer
5k
views
SSH via secondary IP
ssh
ssh
Hello everyone,
My dedicated server has a few IP addresses assigned to specific accounts. And I can SSH to the account via secondary IP. But once in, the IP is always the primary IP ( i ...
0
votes
1
answer
366
views
Want to SSH from external IP. Tried with different router at different network but failed
I simply want to SSH into my local host from outside. This is my router where I am applying the port forward.
Manufacturer:Huawei Technologies Co., Ltd;
ProductClass:HG8245H;
SerialNumber:...
- 1
1
vote
2
answers
707
views
How find my board's IP within a network without monitor?
I have a network in my workplace and also have a laptop(Ubuntu Desktop 16.04) connected to it by Wi-Fi with the IP address 10.13.0.82. I also have a nanopi-M1 board with Ubuntu-server installed on it. ...
- 437
1
vote
1
answer
93
views
ssh - looking up IP through API on-demand
Is there a way to make ssh dynamically lookup the ip address for a given hostname through an external API?
The scenario is that I have a few customers with thousands of varying on-demand cloud ...
- 635
2
votes
1
answer
491
views
2 DDNS domains in 1 network
I'm setting up my personal VPN server on a Raspberry Pi and a download/webserver on another Raspberry Pi. To access these remotely I make use of a DDNS (like No-Ip).
When I installed my webserver it ...
- 23
0
votes
2
answers
2k
views
How To Figure Out What Lives At An IP Address [duplicate]
Got a weird one here.
I've got an IP address in my subnet that is alive and responds to ping requests, but I can't figure out what device actually live at that address. I've tried a couple of IP ...
- 821
0
votes
2
answers
2k
views
How to ssh/scp from my Mac to my Ubuntu with a link local address?
I have read various articles about how to do this, but to no avail. What I am trying to simply do is, ssh/scp from my Mac, to my Ubuntu desktop.
My Mac has a link local ipv6 address, starting with ...
- 225
0
votes
1
answer
113
views
How to remote SSH connect to my Raspberry Pi with static local IP?
I am trying to make my Rasperry Pi remotely accesable. The problem that I am stuck with is that while remotely trying to SSH connect to my device I cannot login due to false credentials:
ssh -...
- 101
0
votes
2
answers
1k
views
ssh inside network not working after port forwarding on router
I forwarded the following ports on my router for my linux server which has a static ip address.
TCP 21 FTP
TCP 22 SFTP
TCP 80 HTTP
TCP 115
Before enabling these rules I could already ...
0
votes
1
answer
352
views
Cannot connect to Raspberry Pi using en0 IP address
I have two separate RPis I have only ever used headlessly using my Mac (OSX). When I set up my first RPi I used an online tutorial wherein I went into System Preferences->Network and changed '...
- 113
0
votes
0
answers
2k
views
How can I correct "ssh: Could not resolve hostname nn.nn.nn.nn: Bad address" under git-bash?
I'm running the latest version of git bash under Windows 8. Putty works correctly.
I can ping the following:
sdf.org
192.94.73.15
I can use "ssh sdf.org"
If I use "ssh 192.94.73.15" I get the error ...
- 743
1
vote
1
answer
7k
views
How to find out the IP of a known host in SSH
After connecting with an ssh host for the first time, you're prompted to add the host to the trusted known_hosts file, and are given the IP.
Warning: Permanently added the RSA host key for IP ...
- 546
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 ...
- 1,908
0
votes
0
answers
135
views
Setting up ssh between systems using same router
I have been trying it to ssh into my ubuntu system from mac. I couldn't get it working though. I am using a DIR-816 as my router.
Here are the configurations:
mac:
en0: flags=8863<UP,BROADCAST,...
