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,...
0
votes
1
answer
500
views
How to SSH to computer with both public and private IPs using DDNS
I have a Mac laptop (computer A) running OS X el capitan that I would like to remotely access with SSH. Since the computer is always on my school network, I cannot get a static, public IP address. ...
- 11
5
votes
2
answers
20k
views
How to SSH to a private ip behind a router using public dynamic IP
In my office there are 2 PC, both of them are behind a router with his own private IP. I'm trying to connect to them via SSH but it only seems to work while my notebook is connected to the same Wifi (...
- 151
1
vote
3
answers
2k
views
Is it possible to list usernames of a remote machine knowing the IP address only?
I would like to connect remotely to a machine. I know the IP address and I know the password associated to my username but I forgot my username.
Is it possible to list all usernames of a machine ...
- 2,661
0
votes
1
answer
228
views
PuTTY: Cannot connect to a friend's server even though not blacklisted
My friend is hosting a server from home and I have been helping him to run a game server on it. I was able to connect using PuTTY, WinSCP and the game we were hosting, but due to a former admin ...
0
votes
1
answer
63
views
How do I write access to users regarding SSH server for remote control in Linux Mint?
SSH server is on computer #1. Computer #1 is running Linux Mint. Computer #2 is running OS X. I used the following command:
ssh mike_10.0.0.188
The IP address is from ifconfig from the terminal as ...
0
votes
1
answer
2k
views
Public IP address range
To setup SSH, Amazon asks us to
Enter your network's public IP address range
What is my public IP address range, and where can I find it?
Is this a range that is provided by my ISP?
Are there ...
- 111
1
vote
1
answer
5k
views
Scanning a network and SSH each IP until I get in through SSH
Normally, I would SSH into that machine using:
ssh [email protected]
That server in my network is forced to use DHCP in the subnet (134.96.90.0). And everytime it shuts down, I have to go find the ...
- 135
0
votes
1
answer
498
views
Can't connect to ssh server by global IP address when not on the server's Wi-Fi network
When on the same network it works fine with either the global or local IP address being used.
I am forwarding port 22 like this:
IP Address Start Port End Port IP Address Start Port End Port ...
- 1
2
votes
2
answers
1k
views
Periodically send dynamic public IP to web server to allow remote SSH access
I have a home where the ISP does not allow static IPs for hosts. I have a computer (that I will call A from now on) in that home that has a SSH server running on it and I would like to connect to it ...
- 473
0
votes
2
answers
63
views
foreign ssh login I don't recognize
The last ssh login to my server was seemingly from a computer I don't recognize.
How can I found out who that was?
aaubervilliers-651-1-60-191.w83-200.abo.wanadoo.fr
I'm not in France!
- 125
0
votes
2
answers
887
views
Acessing samba shares on different internal network with different IP range
As you can probably see from my topography, my Raspberry Pi is directly connected to the ISP modem/router with an IP of 192.168.1.2, whereas my PC is one network underneath with an IP of 10.0.0.4.
I ...
- 67
0
votes
1
answer
104
views
Need a way to use 2 networks to access the server in parallel sharing data traffic
I have a server connected to Internet via two networks - A microwave link and an ADSL Link. The server has been assigned static IP address in both network.
Both both the networks are not reliable and ...
- 141
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 ...
- 837
0
votes
0
answers
207
views
Very strange behavior when I try to connect using SSH. Why it works only if I copy and paste the IP address?
I am experiencing a very strange behavior.
The situation is the following one: I connect to my RaspBerry Pi from my Ubuntu Linux 12.04 using SSH
So I do the following operation: I go into my router ...
- 7,201
3
votes
2
answers
825
views
Is there any way to abstract IP address during ssh?
I have a server which is in the middle of a forest. It is connected to the Internet via a microwave link and an ADSL link.Hence it has two different static IP addresses. Now if there is heavy rain, ...
- 141
1
vote
2
answers
77
views
SSH to my company's server
So I am working from home and I need to connect(SSH) to my company's server ever yday.
The problem is that they have recently done an IP lockdown and only selected IPs can connect.
My IP is not ...
- 13
1
vote
2
answers
81
views
How to ssh inside a local netwrok using an external IP?
I can only ssh locally. I tried to ssh from my laptop in an external network but I wasn't able to do that. So I went home and did some troubleshooting. Now I want to ssh from my local network to that ...
- 115
3
votes
2
answers
7k
views
log into SSH server using a subdomain by adding an "A Record"
I SSH into a series of static IP addresses, but it's easy to forget which one is which. I'd like to replace the static IP addresses with a subdomain of a domain I own.
I.e.,
55.55.555.55 --> box1....
- 31
0
votes
2
answers
1k
views
Avoiding geo-blocking with SSH tunneling
I live in UK and I need a Spanish IP to access some content on the internet.
I rented a VPS server based in Spain, which has a Spanish IP.
Now I folowed this tutorial to create a SSH tunnel to my ...
- 1,457
5
votes
1
answer
10k
views
How do I fix SSH sending fragmented packets
My ISP sometimes drops IP Fragments. This manifests itself in SSH thus: I can login fine and run commands that output short strings, but running something like "ps fax" causes the link to lock up.
...
- 101