Questions tagged [ssh]
SSH (Secure SHell) is a protocol for securely running commands on a remote computer. Use this tag for questions about configuring, using and trouble-shooting SSH client and server software.
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nohup process pid not visible in new shell but still in old shell
I open and connect an ssh terminal window shell to my server and run this:
nohup sleep 50000 &
When I then run ps I see this:
PID TTY TIME CMD
1 ? 00:00:00 bash
56 ? ...
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Good security practice for remote to local backup using rsync
I would like to perform a manual backup of a remote VPS (Debian 12) to my laptop using rsync. I want to backup the single files and directories to easily inspect them locally, and not e.g. a VM ...
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Cannot figure out how to turn off StrictHostKeyChecking
I've got this ssh command that I run on different databases:
ssh -i $8 -l $9 $1 "set -o pipefail set -o StrictHostKeyChecking=no; mysqldump --single-transaction --skip-lock-tables -u $2 -p$3 -P $...
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config file for ssh ProxyCommand after a ProxyJump
There's something really broken about my mental model of how ssh's nesting of ProxyCommand works.
I have the following ssh command that works the way I want it to (ssh to jump.mydomain.com and then ...
- 1,221
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Copy ssh keys to a new computer
I'm changing between computers.
On an old one I have SSH keys (to remote servers, AWS, etc...)
Is it considered to be a good practice just to copy the .ssh folder to a new computer ?
If not, what is a ...
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23
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Can't detach from tmux session while process is running
I am logging in to a remote linux machine via ssh, and then I start a batch process in tmux.
However, I can't detach from the current tmux session using Ctrl + b + d.
So, for starting another tmux ...
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47
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SSH: Permission Denied (publickey,password) [closed]
new to cybersecurity bear w/me. Just a learning situation is all, to progress onwards I took it far as I
could it asked me to prepare & encode the PAYLOAD etc. I did those 4 steps.
Why after ...
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27
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How to make tmux detach when exiting ssh by closing terminal?
Trying to start using tmux instead of screen in my raspberry pi, due to screen's weird problems with colors.
But not really understanding how to make tmux detach automatically.
I used to use ssh me@my-...
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SSH: Permission Denied (publickey,password)
new to cybersecurity bear w/me. Just a learning situation is all, to progress onwards I took it far as I
could it asked me to prepare & encode the PAYLOAD etc. I did those 4 steps.
Why after ...
0
votes
1
answer
28
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How to SSH to a host and attach an LXC container in one command, properly?
I'd like to connect to a LXC container through Proxmox via SSH without having SSH access to the container itself, so I can get the desired outcome by connecting to the Proxmox host first and then ...
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How do I get the tmux window name back after ssh clobbered it?
This is a common problem, and while not critical, it is quite annoying.
While using tmux on a remote server, each window is renamed according to the program being run. So if I have 3 windows running ...
- 3,911
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47
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When exchanging keys between source and target systems, does local account have to exist on a remote system as well?
Full rephrase:
Local system server_local has an account username_local. I am logging under this account, generate a public key and send it to the remote system server_remote, where it is added to the ...
- 103
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Piping not working as expected with SCP
I am trying to pass the password to scp command so that it doeskin prompt for it. I am doing it like this.
echo "pwd" | scp -r $files_path $user@$server:$target
On one server it is working ...
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17
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Mail remote commands output on failure
I would like to run a command on a remote server and send an email alert (locally) in case of failure. As surprising it is this actually works:
ssh -p1222 root@10.4.4.4 'cd /root/chk; md5sum -c /root/...
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29
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Server presenting RSA key instead of ECDSA when someone tries to ssh
On Server B, I have ECDSA, RSA and ED25519 private and public keys available in /etc/ssh/.
When server A tried to ssh to Server B it received the RSA key fingerprint to authenticate and fails because ...
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49
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Unable to connect to remote server after: sudo chown -R $USER:$USER /var/www
I tried gaining write permissions to change an HTML file on a remote server that runs Fedora using:
sudo chown -R $USER:$USER /var/www
After entering this line in the terminal connected to the ...
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0
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23
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Able to login via SFTP but can't login to SSH
I'm using Nocix, unmanaged servers, which is cheap sooo I guess it's my own fault, however...
I am able to login to root SFTP using Filezilla, I am unable to connect via SSH on PuTTY, I have no idea ...
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48
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Grepped /sys/ directory, now device won't respond
I recursively grepped the /sys/ directory for the string "hello" over SSH:
sudo grep -r hello /sys/
I'm using a Raspberry Pi 4B 8gig. After performing this command, the rpi won't respond to ...
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39
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sshpass No such file or directory
need add string to file on remote ssh server without prompting sudo password
myuser=testuser
$ sshpass -p "$mypass" ssh -t -o StrictHostKeycheking=no $myuser@$myhost "echo $mypass | ...
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38
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sudo through ssh on cron
I have this command which runs properly when executed on terminal:
ssh someuser@someserver -t "sudo systemctl start someservice"
No password asked for ssh, there is a public key to connect, ...
- 2,396
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13
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Arguments lost when running ssh host sh -c [duplicate]
Running ssh u@h command arguments works as expected:
$ ssh verence@dock df /run
Filesystem 1K-blocks Used Available Use% Mounted on
tmpfs 6551280 1888 6549392 1% /run
If I add a ...
- 3,203
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ssh port forwarding, who has access to localhost?
I've done an ssh remote port forwarding:
me@host1.a.com% ssh -R 127.0.0.1:11999:host2.a.com:99 me@host3.b.com
My understanding is that this creates a TCP socket on host3.b.com's localhost port 11999.
...
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28
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In accessing console via serial connection, is there some "serial daemon" listening in the server?
When we use SSH, we should have an SSH client on the client computer and there should be an SSH server running on the remote computer. In Linux for example, the SSH daemon, sshd, should be running in ...
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Can one configure per-client non-closing SSH session on server side?
On SSH client side one can configure per-server keepalives so that connection to a single server is kept up:
Host example
Hostname example.com
ServerAliveInterval 240
On server side one can ...
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30
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How to get cron job to use ssh-agent for current user
I'm trying to persist an ssh tunnel connection with Remote port forwarding to access a machine behind a home router, using a cron job, as shown in this blog: https://juliansimioni.com/blog/howto-...
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38
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SSH server allows login but refuses connection when trying to copy a file
I am able to log into my ssh server both using a password and also with key. But when I try to copy a local file to the ssh server (rsync or scp) it refuses the connection which is very strange.
So ...
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Is there a way to auto seutp ssh dynamic port forwarding base on availability of servers?
if there are two server ( or list of server ) which are able to be connected via SSH, but they are not stable in terms of high latency or not even up or slow to to connected to .
I have to mannualy ...
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How to start ssh-agent without eval
What I already know
To start ssh-agent you need to use the command eval $(ssh-agent)
You have to do this because of security reasons. A child process can't change environment variables of the process ...
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60
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Cannot scp folders from user computer to server
For some reason I can no longer scp folders from my desktop Mac to our Linux server.
Here's the error:
(base) my_computer:~ username$ scp -r /source_directory/filename user@server:/home/user/...
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41
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Open Solaris11 in Vagrant: Unable to negotiate with 127.0.0.1 port 2222: no matching host key type found. Their offer: ssh-rsa,ssh-dss
I use this Vagrantfile:
Vagrant.configure("2") do |config|
config.vm.box = "jonatasbaldin/solaris11"
config.vm.box_version = "1.0.0"
end
The vagrant up is ...
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Really strange problem with SSH disconnecting immediately, lots of investigation done
I have 3 raspberry pis with identical SD cards, for some reason one of them suddenly disconnects immediately after SSH authentication.
The problem doesn't occur immediately, reboot will fix it, and ...
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How to send expression with variables over ssh?
I can run the followind loop locally
for i in A B C; do mycommand $i; done
Now I am trying to send it over ssh
The following version
ssh myhost for i in A B C; do mycommand $i; done
The following ...
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Why Ansible failed to ping instance which I can connect?
I can connect my AWS EC2 instance
ssh -i "pizdform.pem" ec2-user@ec2-52-206-23-6.compute-1.amazonaws.com
Last login: Tue Feb 21 12:36:50 2023 from ...
I tried Ansible ping
cat test-project/...
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ssh and git setup
I am attempting to setup a private git server on my local network and I cannot for the life of me figure out what I am doing wrong. I can't seem to get ssh authentication via private key working for ...
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Unison remote ssh connection
I am trying to sync folders with Unison app.
The remote server has enable for ssh the port 9999, but I am not able to connect Unison to the remote device.
I have tested a lot of different connections ...
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27
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How to generate ssh key with AES-GCM?
I used that form to create my ssh key : ssh-keygen -t ed25519 -C "your_email@example.com" and I got: Encryption: aes256-cbc, is it possible to use aes256-gcm@openssh.com instead?
thanks
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Screen is definitely running but I cannot find the screen session
I would just like to preface to say I'm an absolute beginner so maybe the solution is easy.
I have a python script which writes some data to a csv file, and I want to run it on a remote server. So, ...
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ssh does not use ssh-agent on FreeBSD
I recently set up a new FreeBSD system and am having a lot of trouble getting ssh to use ssh-agent. I have verified with ssh-add -l that my key is added, and the SSH_AGENT_PID and SSH_AUTH_SOCK env ...
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How to redirect the output of a command running inside a loop on a remote machine (via ssh) to my local machine without breaking the loop?
I am running a piped ssh command on my Ubuntu 20.04 PC, where I am sshing into a remote machine, listening to a specific port and processing each incoming message as shown below:
ssh ${...
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34
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SSH login still ask password even though public key is added in remote machine's ~/.ssh/authorized_keys file
I have a Raspberry pi 4 with a Linux OS & I am using a Macbook. The two machines are in the same LAN.
Raspberry pi IP address is 192.168.10.11. I can ping the Raspberry Pi from my MacBook terminal ...
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Suggestion for sudo over ssh
I need two suggestions for making my script working from local server as well as ssh execution
1. How to update the sudoers
In server i have a path
/var/log/data/status/
all files of parent and ...
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43
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How to use a GPG key for SSH on macOS
Basically, my goal is to use a single key for everything. I have a GPG key that I imported onto my MacBook, and would like to use that key for SSH authentication. However, despite my several attempts, ...
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How can I forward port 8080 from my linux machine to be visible on port 2007 of my internal network using ssh?
I have a linux server hosting an applcation on port 8080
Inside putty, i have create a port forward from port 2007 to 8080 by specifying the public IP of my server, where's covered in red below
How ...
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17
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Trouble with x2x
I've tried out x2x as per this old link but have hit a snag. Its purpose is to allow use of the keyboard and mouse of one linux computer on the desktop of another linux computer.
I tried the first ...
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42
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UFW apparently causing SSH to timeout despite specific rule
I'm new to SSH and ufw and would like to understand why one type of rule works between two Linux Mint computers on the same home LAN but another does not seem to work.
I just wanted to allow one ...
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73
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SSH fingerprints not matching
host_a is macOS
host_b is Ubuntu
host_b is in known_hosts on host_a
host_a is not in known_hosts on host_b
I've changed the fingerprints and trimmed some output for brevity but otherwise this is ...
- 101
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18
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How to redirect domain in ssh to install repo from a different mirror?
I want to try vestacp on AlmaLinux 9. VestaCP supports CentOS 8 which means it should work fine on AlmaLinux 8 and 9. It's based on the same codebase. Either way if it had problems it's fine, I'm ...
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/var/log/auth.log is flooded with error: connect_to 127.0.0.1 port 7300 error
I am using SSH Direct with napsternetv on my phone (iPhone and android) which sets Udpgw port 7300. This lead to flooding server /var/log/auth.log with the following error message:
[date] [time] root ...
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How can I disable and remove XFCE from Debian from SSH?
I am remotely accessing a server I configured on Debian 11. I want to disable and remove XFCE without losing SSH access (since I don't have physical access to the server right now) and just run it as ...
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33
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How to solve the error "The name :1.83 was not provided by any .service files" (PCManFM-Qt Version at Debian 11 bullseye)
When I try to connect to a remote server using PCManFM-Qt Version: 0.16.0:
"Go" "Connet to server" "Type SSH" I get the error message:
The name: 1.83 was not provided by ...
