All Questions
20
questions
3
votes
1
answer
293
views
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).%...
1
vote
0
answers
184
views
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 ...
- 11
0
votes
1
answer
252
views
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 ...
- 545
3
votes
1
answer
354
views
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-...
- 121
0
votes
0
answers
131
views
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 ...
0
votes
0
answers
128
views
SSH Connectivity Issue
Why does the ssh client stop connecting to servers either right after reboot or few minutes after reboot?
The screenshot
I found this in both ubuntu 20 as well as ubuntu 22. My server is working fine ...
0
votes
0
answers
851
views
SSH connection not working
I created an EC2 instance (ubuntu 20.04), after successfully creating this instance I SSH into it and ran some commands which were basically to install some open source tools as sudo user, but once I ...
1
vote
0
answers
4k
views
upgrade OpenSSH 8.2p1 => 8.5p1
I am trying to upgrade OpenSSH version to 8.5p1 on Ubuntu 20.04 LTS.
When running these commands I get the following
ssh -V
OpenSSH_8.5p1, OpenSSL 1.1.1f 31 Mar 2020
dpkg -s openssh-client | grep '^...
- 11
1
vote
1
answer
13k
views
Can't generate SSH ed25519-sk key
I'm trying to generate an ed25519-sk SSH key in Ubuntu 20.04.03 LTS. However, I get a 255 error code when I try. I'm using OpenSSH version: OpenSSH_8.2p1 Ubuntu-4ubuntu0.3, OpenSSL 1.1.1f 31 Mar 2020....
0
votes
0
answers
2k
views
ssh - private key file requires \n at the end of file or cause "Load key id_rsa invalid format"
Question
Has OpenSSH introduced a change that requires \n at the end of the private key file (id_rsa)? Previously I was on Ubuntu 18.04 and I believe id_rsa without \n at the end of the file was ...
- 309
0
votes
1
answer
376
views
ssh with identity_file failed on ubuntu 20.04
First I generate RSA key on the target host on ubuntu 20.04:
ssh-keygen -t rsa
Then I scp ~/.ssh/id_rsa to source host.
Final I wanna to ssh from source host by id_rsa:
ssh -i id_rsa root@target_host
...
-1
votes
1
answer
4k
views
SSH using putty : Network error connection timeout
i am using Ubuntu server 20.04 lts i have configured static IP and can ping google.com and i can also ping server from another computer vice-versa. my ssh status is active and port 22 is listening but ...
- 1
0
votes
2
answers
4k
views
Cannot connect with SSH to my Ubuntu Server that is behind a router
I installed Ubuntu Server 20.04 on my old laptop. When it boots Ubuntu Server starts fine and I can login on it. I installed OpenSSH on it and it is active, running. I allowed port 22 on the ufw and ...
1
vote
1
answer
939
views
Ubuntu Server Terminating SSH Connection
I have an Ubuntu Server 20.04.1 that I want to SSH into. I am using the default ssh service on Ubuntu. I can connect with it and it works flawlessly, but after about 20 minutes, the connection ...
0
votes
1
answer
1k
views
Ubuntu desktop ssh unreachable after a while
Hi I installed a new Ubuntu Desktop machine wich i am running a server from. Now i ran into the issue that after a while (12-16 hours sometimes, after i didn't use it for a bit.) that when I try to ...
- 11
1
vote
0
answers
4k
views
Generate RSA key in Ubuntu 20.04
Whenever I create a public/private keypair using ssh-keygen in Ubuntu 20.04, I get an OpenSSH private key file instead. Even if I manually specify that I want to use rsa using the following command:
...
- 111
1
vote
2
answers
1k
views
FIPS and openssh-client-hmac for Ubuntu 20.04?
Hi I'm trying to install openssh-client-hmac for Ubuntu 20.04. Does it not exist yet? Should I downgrade to Ubuntu 18.04 ?
I need it because I'm enabling FIPS and was following the documentation here ...
- 113
1
vote
0
answers
857
views
Isn't a status of active (exited) an oxymoron?
How is one supposed to interpret a status of "active (exited)" on a service such as SSH or SSHD? (This is the results of the command:
sudo systemctl status sshd
How can it be active if it exited? ...
- 121
0
votes
1
answer
5k
views
OPEN SSH not listening on Port 22
I installed Ubuntu 20.4 (and included Open SSH) as virtual machine on Virtual Box on a Windows 10 laptop. I installed Samba to allow for machine name connection.
Below shows the listeners on Port 22,...
- 121
1
vote
3
answers
5k
views
Ubuntu Server 18.04 and OpenSSH 8.2 - when?
I need support for Yubikey's for a project. Sysops need to log on to an Ubuntu Server from remote positions using them. I see that openssh 8.2 has native support for it.
Will openssh 8.2 be available ...
- 11