Questions tagged [openssh]
OpenSSH (OpenBSD Secure Shell) is a set of computer programs providing encrypted communication sessions over a computer network using the SSH protocol.
530
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scp failing on 24.04
I recently upgraded a box to 24.04 and several scripts using scp are failing.
They work perfectly on an older box but the new box can't copy the files and results in a "No such file or directory&...
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1
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ssh only works after rebooting. Ubuntu 22.04
A local Mac can connect remote Ubuntu 22.04 by ssh for about 16 minutes, and disconnected. The local machine screen said Connection to xx.xx.xx.xx closed by remote host. Then I tried to connect the ...
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0
answers
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SSH hanging with Raspberry Pi
I have a RaspberryPi Model 3A+, with the Raspbian OS installed. I am trying to SSH from my laptop, into my Pi over my LAN.
Initially I encountered no issues. I could ssh in fine, execute commands, etc....
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1
answer
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Commands in the same line with sshpass not recognized
I was running a script normally. But suddenly, all the commands in the same line with sshpass started being not recognized. For instance:
sshpass -p "$password" rsync -a -e "ssh -o ...
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0
answers
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Ubuntu OpenSSH sftp server
I installed OpenSSH. Changed the sshd_config. Created a user.
I created a user, but I get a error when connecting with WinSCP. Why? (Networkerror: Software caused a disconnect)
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1
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Installing openssh-server in Ubuntu-24.04 on WSL2
I just installed Ubuntu-24.04 from the Microsoft Store into WSL2 on my Windows 11 host. The first thing I wanted to install after logging in and upgrading the installation was openssh-server, but that ...
0
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0
answers
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SSH Error：Permission denied, please try again
Recently, I installed a new Ubuntu 22.04 LTS and found that it worked the first time I logged in, but then it didn't!
I did the following configurations, but the problem is not solved
sudo vi /etc/ssh/...
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1
answer
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Delete old versions of sudo [duplicate]
Regards, I hope you be fine.
I'm trying to close vulnerabilities in ubuntu, currently working with jammy jellyfish.
A vulnerability that I'm closing is with sudo
when I use the command dpkg -l or apt ...
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0
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1
answer
179
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Is it expected to not have `rsyslog` installed after a fresh install of ubuntu server?
Is it expected to not have rsyslog installed after a fresh install of ubuntu server?
If yes, where do logs that go to /var/log/auth.log actually go then?
Here is what happened: I was looking for /var/...
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1
answer
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SSH freezing moments after successfully connecting, then Broken Pipe
Sorry to ask about a topic that's been done to death, but I haven't found what I need yet.
I've set up a lambda machine with an SSH server. I can connect to it from my laptop with ssh -l <username&...
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1
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How to delete users who are logged in
We tried to remove them by killing the processes but they are still there.
This is how users appear
can't access root pts/18 tmux(1804832).%13
can't access root pts/19 tmux(1804832).%...
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0
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44
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How to Login to SSH with Dynamic username
I some external Gateway through which the ssh requests come and need to log the sessionID in the linux when the connection happens. I can send the sessionID (some string) along with the username while ...
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0
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179
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Allow access to openssh server without authentication
First this is not a duplicate of any thread ive gone thru all of them and either solutions were not working for OPs or they werent working for me.
I want to allow specific user to use my ssh server ...
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0
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port 22: Connection refused, but only 60% of the time
I am running this:
ssh_command = f'ssh -vvv -o StrictHostKeyChecking=no -i {private_key_file} ubuntu@{public_ip}'
# Use os.system to execute the SSH command in a subshell
os.system(ssh_command)
...
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votes
1
answer
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How to avoid Broken Pipe error from client side?
How do I prevent the Broken Pipe error from the client side of the ssh connection on ubuntu?
Let's say that slurm is running on the server and I just made a salloc request. If the connection is broken,...
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0
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Bug with pasting root password to connect via SSH from Ubuntu 20.04 to Alma Linux 9 remote server
Summarize the problem
Im running into a strange bug, by pasting the root password into the prompt while connecting via SSH from a Ubuntu 20.04. client to a AlmaLinux 9.2. remote server.
Client: Ubuntu ...
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1
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send_pubkey_test: no mutual signature algorithm
Here is the client log output after a ssh -vvv user@machine (I think this problem is related with the deprecation of sha-1). I have already tried to create a new key/par for ed25519, but it doesn't ...
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2
answers
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Can't I scroll in the terminal up? Terminal shows only 24 rows? The scrollbar on the right fills the entire vertical height of the window?
Based on:
Terminal output scrolling is gone (Headless 11.10 Server, Upgraded from 10.10)
and
https://superuser.com/questions/1331658/why-cant-i-scroll-in-the-terminal
and my own dire situation right ...
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4
votes
1
answer
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Secure remote copy with exceptions
In order to use some data that are stored and produced remotely I first download them via scp servername:/.../big_directory/* ~/. There are many files and the command includes everything. These files ...
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0
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ssh no matching host key type found
I have 2 Ubuntu 22.04.3 LTS servers. Both are the same version.
1:chia@chia00:~$ cat /etc/os-release
PRETTY_NAME="Ubuntu 22.04.3 LTS"
2:chia@hp1:~$ cat /etc/os-releasePRETTY_NAME="...
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0
answers
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"ssh-copy-id user@ip_address" throws error
In UBUNTU system, I'm trying to set up remote login system. It is failing in ssh-copy-id step. It throws the following error:
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to ...
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1
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what is the use of setting up OpenSSH on Ubuntu Live Server 22.04?
Setup Info
I am using Hyper-V to spawn Ubuntu live 22.04 VMs. During the installation procedure it asks if I want to Install OpenSSH server, whether I select this option only results in one change. ...
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0
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SSH Connection Timed Out Ubuntu 20.04
I've looked through a million threads on this topic but nothing has worked. I'm trying to ssh into my linux through port 22. Connection is refused.
UFW is inactive and firewall-cmd is not downloaded
...
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0
answers
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failed to fetch libraries for openssh-server + Temporary failure resolving software sources [duplicate]
I tried many ways like tried to find here gone through http://in.archive.ubuntu.com folders.
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1
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When Connecting To Remote Box SSH Fingerprint Changed After Upgrade from 18.04 to 22.04
I have a PHP script on my local box that connects to a remote box. Nothing on the remote box changed. And when I connect via the command-line, using the ssh command in a terminal, there was no change ...
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1
answer
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How do I make ssh ask for the password every time?
I am using Ubuntu 22.04. This is an unusual question since most users want to make the ssh agent remember the password once it is entered per user session. I would like it to ask for the password ...
0
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1
answer
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can not setup passwordless ssh using key by MANUALLY COPY public key to server
context:
firstly, i got a new ubuntu 20.04 server with a password
I'm using OpenSSH client on Windows 10
I want to do passwordless login, then I
ssh to server using passwords,
manually create ~/.ssh ...
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0
answers
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Automatically disconnection on all port, including ssh and directadmin port
New to Ubuntu server for home, just start using it for a week and more.
The server is connectable by ssh and port 2222 (directadmin port) after the system startup (power on/reboot) but after the ...
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3
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1
answer
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Unable to ssh over WAN
System:
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04.6 LTS
Release: 20.04
Codename: focal
Openssh version:
$ ssh -V
OpenSSH_8.2p1 Ubuntu-...
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1
answer
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SSH - Driving me insane
I am using the latest ubuntu 22.04.03 on a headless system. SSH continues to add these lines to the top of the config file each and every reboot, therefore locking me out.
...
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0
answers
2k
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Session closed for user root
I'm trying to use an old pc as server (ubuntu desktop LTS 22.04.02) and to connect from my new personal computer (ubuntu desktop LTS 22.04.02).
The command ssh -Y me@the other ip address worked once ...
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1
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SSH Connection working on Terminal to Ubuntu-server but not showing on website on same machine
Looking at other questions I have gone through and tried various methods but the problem I am having is when I log into the ubuntu-server via terminal it works correctly, I am able to do all the ...
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vote
1
answer
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Upgrade OpenSSH from v8.9 to v9.3 on 22.04.2 LTS?
I'm working on shoring up some vulnerabilities in our environment, and one of them is that we're on OpenSSH 8.9. Our security team has advised us to upgrade to 9.3, but I'm not seeing anything ...
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1
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how to properly mask ssh server background service
I want to mask ssh so the ssh server is disabled till I need it myself. but still want to have ssh client capabilities.
I use openssh and the service is ssh.service and its alias sshd.service
I use ...
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3
answers
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How to access my computer's terminal in the university dorm from another computer?
I have used ssh to access remote computers/servers where they provided me a username, a password, and an IP address (like xxx:xxx:xx.xx). What I need to do is:
ssh [email protected]
and then it ...
0
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0
answers
284
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Apache2 webserver not accessible from outside LAN
I've just installed Apache2 web server on Ubuntu 22.04 with PHP, MariaDB and Wordpress. I've been following this YouTube guide:
https://youtu.be/pOESHd1G-HI
My Ubuntu machine's ip is: 192.168.1.16. I ...
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0
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1
answer
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Future Security Update to openssh-server on Ubuntu Server 20.04 LTS?
As per:
https://launchpad.net/ubuntu/focal/+source/openssh/+changelog
and
https://ubuntu.com/blog/what-is-an-ubuntu-lts-release
and
https://ubuntu.com/about/release-cycle
" For each Ubuntu LTS ...
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0
answers
131
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ssh tunnel general process on a phone -used as vpn -user limitation failed
I'm using a couple of vm's as an ssh tunnel-vpn for both android and iOS, using ssh clients on both OS's. so now i want to limit the number of sessions per each user in order for each user is limited ...
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0
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How can you access net applications on wsl 2
I need to send a file from one WSL to another for a task I'm given. I tried to use scp command, but it requires me to get a wifi0 IP address for the network both devices are connected to, which I don'...
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0
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ssh and sshfs connection via NordVPN meshnet not working
I have set up an OpenSSH server on my home PC (Ubuntu 22.04 LTS) and am trying to connect to it using ssh and sshfs from my Laptop (Ubuntu 20.04 LTS).
The server seems to be running smoothly and I can ...
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0
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cannot install openssh-server [duplicate]
I'm having trouble installing OpenSSH server on Ubuntu-22.04.2 (not 22.04.1).
ERROR:
$ sudo apt install openssh-server
Reading package lists... Done
Building dependency tree... Done
Reading state ...
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2
answers
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SSH into server running xinetd throws error "kex_exchange_identification: read: Connection reset by peer"
I have two servers running ubuntu 22.04.2 LTS with openssh-server 1:8.9p1-3ubuntu0.1 installed. And on both servers I have installed the same admin user.
I want to test the legacy superdaemon xinetd ...
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0
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Why I am not able to connect Ubuntu server with SSH key?
I have Ubuntu server 22.4 and I it had SSH server installed. Time to time SSH connection was doping even while I was working. I update the SSH by using command sudo apt-get update ssh. After the ...
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1
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Access to remote server via SSH via pem key requests 2 set of password (key and user)
On a remote server, I would like to access via ssh only with a pem key, which is password protected, but I'm being asked for the user account password as well
I created the account which I want to use ...
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1
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issue sshd_config / systemctl restart
one of my workstation (previously it was a 22.04.1 server edition but according to NUC compatibility list last BIOS and dbx EUFI Database uggrade force me to downgrade to workstation as Server edition ...
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0
answers
5k
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Can’t change SSH port
I can’t change the port from 22 for openssh. I’m using /etc/ssh/sshd_config. The line hasn’t been commented out. I’ve restarted the service. But no matter what I do when I check with service ssh ...
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votes
1
answer
1k
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Can't connect SSH on static IP address
I have a default Ubuntu Server 22.04 installation (haven't done anything on it yet).
SSH is working fine with default configuration on server's dynamic local IP.
I then set up a new netplan ...
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vote
1
answer
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SSH service fails to start
I just created a virtual machine based on cloud images (of Lunar Lobster) on VMWare. Unfortunately it fails to start ssh. If I try to enable or restart the service I get:
And if I check journal it is ...
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1
answer
531
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SSH with "Do not execute a remote command" hangs
I have Ubuntu 22.04 installed on a remote server. I can ssh to the server without any issues.
I often need to open a vnc tunnel with the following command:
ssh -L 5901:127.0.0.1:5901 -C -N -l username ...
0
votes
1
answer
215
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Unstable SSH connection on old hardware and clean OS
I have a Ubuntu Server 18.04.6 LTS on an Intel Core Quad Q6600 and old Gigabyte 965P-S3 motherboard. Right now SSH is unstable. Client loses connection after 10 minutes of inactivity, but there is no ...
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