an authorization mechanism for SSH involving public-key cryptography.

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0
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20 views

Synchronize local folder into folder on remote server Amazon EC2 using lsyncd ubuntu

I am straggling all day now trying to setup automatic synchronizing process folder from my local computer (Ubuntu 14.04) to my remote server (Amazon EC2) using lsyncd. This is the error message I ...
0
votes
1answer
35 views

ssh: Could not resolve hostname add: Name or service not known

I created non-sudo user and I can't add ssh key while logined with it: % ssh -vvv add ~/.ssh/mykey OpenSSH_6.6.1, OpenSSL 1.0.1f 6 Jan 2014 debug1: Reading configuration data /etc/ssh/ssh_config ...
-2
votes
0answers
11 views

How do I change my passphrase on Openshift Server

I know little about linux ssh keys and passphrases etc. (any link to a to-the-point documentation is appreciated). I'm on a windows machine. and using git-bash to manage a project on OpenShift ...
-4
votes
0answers
37 views

Which are the major software that provide key based authentication? [closed]

I know that as of now, Azure and AWS provide key based aauthentication. Am not only looking for cloud computing based software but asking in general which major software provide authentication with ...
0
votes
1answer
39 views

Access with ssh only password without publickey with virtualbox

I tried to setup the ssh-server without publickey , with openssh-server 6.7p1-5 changed sshd_config RSAAuthentication no PubkeyAuthentication no PasswordAuthentication yes Restart ssh service ...
0
votes
0answers
14 views

Connect to esXi host from CentOS client with vCLI with RSA Pub/Priv Key

So I successfully setup vCLI on CentOS 7, and I am trying to connect via SSH, but since I set up RSA authentication without Password authentication (on the esxi host), I was wondering if anybody knows ...
2
votes
1answer
71 views

ssh “incorrect signature” while connecting to server

I have a server that I usually connect to from multiple laptops, some FC22, FC23, or ubuntu. I installed a brand new laptop FC23, added the relevant keys in authorized_keys, etc: [mathieu@xps13 ...
1
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0answers
31 views

OpenSSH Windows Error

I want to connect with putty from one machine_1 to another Windows machine machine_2. So I install a OpenSSH Server on machine_2. I generate 2 a key pair with puttygen. I paste the public key in ...
0
votes
1answer
40 views

After restoring GitLab backup, new SSH public keys randomly supersede other users' existing keys

This occurred with a new (not upgraded) installation of GitLab 8.6.4. I installed GitLab and my team evaluated it. Of course I and others entered our SSH public keys. As part of our evaluation I ...
1
vote
1answer
31 views

Google Cloud Platform: ssh from VM_1 in project_A to VM_2 in project_B

I am trying to connect virtual machine VM_1 in project_A to virtual machine VM_2 in project_B. Bot are on Debian Linux. Steps I did: On VM_1 Project_A Generated private and public keys ssh-keygen ...
1
vote
1answer
226 views

OpenSSH adds <IPv6>%2 to known_hosts

When I connect to a CentOS 7 host with IPv6 my ssh client always adds <IPv6 host addr>%2 to known_hosts even though the host key for this host (with the host's IPv6 address) is already present ...
1
vote
1answer
26 views

ssh-add -l multiple entry for the same private key

192-168-1-103:~ josh$ ssh-add -l 4096 SHA256:4fFdwJ71VIH8rucL9y/3U7jxjctaFcAKmdQZPEqR0Y4 /Users/josh/.ssh/id_rsa (RSA) 4096 SHA256:41kNx5H5yDf1mv6ZNS5W5nSI77WU5qhajLYHvUe6/1A ...
-2
votes
1answer
25 views

Verify ECDSA Key Fingerprint of Azure Linux VM [closed]

I'm starting to play with bash on Windows (Insider Preview build 14316) and have created a Linux VM in Azure. When I ssh into it, I'm presented with "The authenticity of host '##.##.##.##' can't be ...
0
votes
0answers
22 views

Apt-Dater: sorry, you must have a tty to run sudo

Unfortunately I can not connect to a host using apt-dater. The error is: Pseudo-terminal will not be allocated because stdin is not a terminal. ADPROTO: 0.7 LSBREL: CentOS|7.2.1511|Core VIRT: ...
1
vote
1answer
51 views

Why won't my SSH keys forward properly?

I'm trying to ssh from my machine to another machine and from there to a third machine. When I do it manually, it works like this: localhost$ scp ~/.ssh/id_rsa myuser@myhost.something.something.com:. ...
2
votes
1answer
41 views

AWS EC2 Server Refused Connection - Unmounted replaced authorized_keys - still cannot connect

So we were working on configurations for a soon to be production server. After making some configuration changes, we rebooted the machine and we got the dreaded "server refused connection" message. I ...
1
vote
0answers
61 views

Warning: Remote host identification has changed (SSH)

Most likely someone did a server update last night, because when I try to do a rsync (from win 7) I get the message (short version): WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! It is possible ...
1
vote
1answer
40 views

Attempting to setup ssh authentication on linux - Grants access all the time

I am currently attempting to secure one of my linux box. I would like the device to grant access to only those systems that have the ssh private keys. In order to accomplish that here is what I did ...
0
votes
2answers
48 views

useradd --disabled-password can't ssh using authorized keys

I might've done this wrong. I created a user with : sudo adduser --disabled-password userX And I've added a public key to /home/userX/.ssh/authorized_keys. But when I ssh into the account I get the ...
7
votes
3answers
187 views

SFTP with chroot depending on public key of connecting user

I want to build a server (running Debian or FreeBSD) that receives backups from different clients via sshfs. Each client should be able to read and write its own backup data, but not the data of any ...
0
votes
1answer
71 views

User without home access remote machine ssh

I want a production server to push backup files to a backup machine. Backups are being done via www-data cron script (as they can be edited by website cms), and once it has finished the idea is to ...
2
votes
0answers
262 views

Mac OSX - SSHD partially broken after El Capitan Upgrade

I recently upgraded my firm's Mac Mini device to El Capitan from Yosemite, and encountered several issues during the upgrade. I've gotten most of them resolved but one that's still failing is the SSH ...
1
vote
1answer
31 views

passwordless ssh in VM - weird authorized keys file

I am trying to setup passwordless ssh to my localhost (itself). I have host machine PM1 and then I lauch a VM(vm1) using qemu-kvm and logged into VM. Then, I am trying to setup passworless ssh within ...
1
vote
1answer
62 views

Can't get SSH ProxyCommand to work (ssh_exchange_identification: Connection closed by remote host)

I'm unsuccessfully trying to use SSH ProxyCommand to connect to a server via a jump box. My config is below, I'm running this command: ssh 10.0.2.54 -F ssh.config Host x.x.x.x User ...
0
votes
1answer
248 views

Cannot clone private repositroy from the docker container

The problem I'm trying to clone private repo from gitlab (self-hosted) during the gitlab build. I'm using ssh private key without passphrase, but got an error key_load_private_type: incorrect ...
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votes
1answer
41 views

SSH — allow login with public key only / disable login with password [duplicate]

I am quite new to server administration and I am not doing it very often. Today I wanted to secure my server, especially the ssh server. Is it possible to configure ssh so that only users can login if ...
1
vote
2answers
37 views

Is there any way to change the key pair on a windows ami in aws

The situation, I've inherited a windows infrastructure in AWS. The ami's were created with someone else's keypair who has now left the business. I have a requirement to remove those keys. The way I ...
2
votes
0answers
83 views

EC2 SSH Login Temporarily Hangs on “Entering Interactive Session”

I've been researching this for hours now, can't figure out why this is happening. Originally marked it as internet but checked my speeds (37 down, 10 up). I went from California to Oregon, and since ...
43
votes
4answers
2k views

What significance does the user/host at the end of an SSH public key file hold?

I can’t figure out why does an SSH public key file generated by ssh-keygen have a user and host at the end of it. Example: id_rsa.pub ssh-rsa ... rest of file ... /CA9gyE8HRhNMG6ZDwyhPBbDfX ...
0
votes
2answers
40 views

How to allow both/either public key and/or password authentication

I am trying to get Komodo to connect to a remote server. However, as I understand it, Komodo doesn't support public ssh keys. I edited the /etc/ssh/sshd_config file and set both ...
0
votes
1answer
205 views

Connection timed out when trying to SCP from one EC2 instance to another

I'm trying to SCP from one ec2 instance to another (via SSH client). Both server use the same keys. My initial investigation into this led me to believe this would all be possible by using ...
0
votes
2answers
71 views

getting permission denied when using ssh

I am trying to setup ssh access using keys - I have added my public key to the .ssh directory on the server. I restarted the ssh service on the server as well. When I logon from my local computer to ...
0
votes
0answers
109 views

SSH Connection To Joyent Instance Using PuTTY - server refused our key error

I have a Joyent account with a Linux Unbuntu 14.04 Instance created on it. I'm trying to connect to the instance using SSH. I'm on a Windows machine using FreeSSHd for my SSH server, PuTTY Key ...
-1
votes
1answer
33 views

ssh key unlock password some hosts some not

I'm having some issues which i can't figure out, i guess it's a noob question but its giving me a hard time. I have multiple servers, you can only connect via SSH with a key. They all have the same ...
1
vote
1answer
25 views

Are default parameters to 'openssl genpkey' sufficiently secure? [closed]

I know very little about openssl so I'm wondering whether the default parameters to openssl genpkey are sufficiently secure. If I run openssl genpkey -algorithm rsa I get a private key. But is it fine ...
-3
votes
1answer
72 views

Cannot SSH in as root using Key

I have searched through serverFault and cannot rectify my problem. An explanation: Ubuntu 14.04 - I am able to SSH into the server using user amenczykowski with a key. I am unable to SSH into the ...
2
votes
0answers
33 views

Forced to change expired password when using ssh key

I am working in an environment where I have an account on multiple linux machines where accounts and passwords are managed independently (no active directory/LDAP/etc) and passwords expire every 30 ...
1
vote
1answer
89 views

Dropbear+OpenSSH: share keys

I have set an encrypted LVM partition on my personnal server (Debian Jessie). So everytime I need to reboot it, I have to connect to dropbear which is installed in initramfs, unlock the disk, close ...
-1
votes
1answer
26 views

Two accounts need new SSH keys

I've got two accounts which are used for automated file uploads on a server and company policy requires that they are updated after 3 years. I wasn't here 3 years ago and I've not done this before. I ...
9
votes
2answers
316 views

Method to deprecate SSH key Pair locally

I've using my ssh-keys for a while. I'm thinking about to upgrade my ssh key pair to a stronger encryption and i dont know all devices where my keys are registered. Is it posible to "deprecate" a SSH ...
-5
votes
1answer
34 views

Openssh key to access remote sftp server from RHEL [closed]

I have generate public key and private key in windows 7 through puttygen then change the key to openssh in puttygen through export key. Now I want to use this openssh key to access my sftp server from ...
1
vote
1answer
43 views

users to connect SFTP server with openssh key [closed]

I want to be able to allow users to connect to my SFTP server with openssh key which I generated in keygen. How would I accomplish this?
0
votes
2answers
80 views

Public SFTP server directory with no password or keyfile

I want to be able to allow users to connect to my SFTP server under a restricted user that only has read access to view files in a certain directory that I upload to without it requiring a password or ...
0
votes
0answers
98 views

How to save ssh-keyscan result with the port to .ssh/known_hosts

When I run ssh-keyscan -p NNN -t rsa GITHOST it produces sting like GITHOST ssh-rsa ...
1
vote
0answers
205 views

Enabling SSH for deploy of a bitbucket git repo

I'm trying to deploy my git repo to my server. To make this work I first needed to setup ssh on my locale computer and on my server. for bitbucket I followed ...
1
vote
3answers
325 views

is it safe to exchange a systems server ssh-keys?

Instead of exchanging ftp/sftp credentials over email is it safer to to exchange a systems ssh-keys over email? If a person didnt have the physical ssh private file, would a hacker be able to gain ...
0
votes
2answers
75 views

One SSH Key for multiple Ubuntu servers + Windows + Teamcity

I want to use the same SSH key to access multiple Ubuntu servers. The reason for this is that I want to deploy our application in DEV, STAGING, PROD, LOCAL environments through a CI server. We use ...
4
votes
2answers
384 views

Ansible with SSH keys

Moving from Puppet to Ansible. Like the fact that it is agent less and SSH driven. I just setup two test VMs. One as the Ansible server (yes overkill), and the other as an example client (random Linux ...
0
votes
2answers
226 views

commands in authorized_keys

I've created an SSH non root/non super user with an authorized_key to remotely login to my server and shut it down however, i'm trying to do this from within the authorized_key file by using the ...
-3
votes
1answer
101 views

How to remove SSH public key? [closed]

I have an embedded device with Linux on board and ssh daemon. Users connect to that device using public key authentication. They generate rsa keys, when send it to me and I add them to ...