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SSH CA-signed key does not work from certain hosts

I've tried to setup CA signed ssh user keys. I got my configuration working on most clients, there seems to be problem on a few specific ones. The key verification fails and they are prompted for ...
Tadeas Vintrlik's user avatar
0 votes
1 answer
2k views

SSH Permission denied (public key)

I am trying to create my own SSH key to connect from one VM A to another VM B (both are Debian/bullseye64 systems). Both VMs are configured to be on a public network using vagrant on my system with A ...
Ironscar's user avatar
0 votes
1 answer
2k views

SSH permission denied

I have problem logging using ssh to company server. I have my local ~/.ssh/config; Host target HostName xx.yy.zzz.aaa User abcd IdentityFile ~/.ssh/id_ed25519 IdentitiesOnly=yes I have other ...
sjiamnocna's user avatar
1 vote
1 answer
385 views

ssh-keygen: signing syntax - help needed with options

I am trying to sign some SSH keys with restricted options. My initial attempt was as follows: ssh-keygen -s /path/to/ca-ssh.pem -D opensc-pkcs11.so -n barfoo -O no-agent-forwarding -O no-port-...
Little Code's user avatar
1 vote
0 answers
2k views

Unable to ssh with public / private key pair

I'm unable to connect (ssh) to one of my servers with pubkey. It was working last week, and I have no idea where to search right now. I have a script which should fetch files with scp to use them ...
Guillaume Marmorat's user avatar
0 votes
0 answers
30 views

How to download SSH keys in Debian on GCP? [duplicate]

I'm trying to download my SSH keys so that I can use Filezilla to connect to my webserver. This SHOULD be pretty straightforward - but everything I've tried has failed. I currently have access to the ...
alexforyou's user avatar
0 votes
2 answers
2k views

Debug SSH not connecting

I am trying to connect to the remote server using ssh, but I have Permission denied (publickey).. I've gone through all possible reasons I can suggest and other questions suggest. I am sure that my ...
confused-demon's user avatar
0 votes
0 answers
3k views

OS X ssh to linux - permission denied (publickey)

Something strange with OS X SSH client while connecting to some Linux boxes. Now I'm trying to connect from my mac to remote Debian running in qemu behind the router. Unsuccessfully :( But if I'll try ...
Roman's user avatar
  • 1
1 vote
1 answer
71 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 -...
abhi's user avatar
  • 21
0 votes
1 answer
48 views

SSH: Login to local pc by key

I got a little problem. I'm using apt-dater to keep different linux-systems updated. Apt-dater uses ssh to login to these systems - there's no problem by doing this. To connect to localhost, the ...
MyFault's user avatar
  • 913
1 vote
0 answers
225 views

why does having ~/.ssh/id_rsa.pub cause GUI dialog asking for SSH password even though SSH_ASKPASS is empty?

How the problem started For some reason I did not have my id_rsa.pub file in ~/.ssh. So I copied it off one of my servers to ~/.ssh/ on my machine... so that I have it, so I can copy it to servers ...
user1862165's user avatar
0 votes
1 answer
878 views

GitLab push not possible and always results in asking for git-user password [closed]

I have a problem with GitLab. Everything is fine, but I can't push. It is asking me all the time the password of the user git. Is it a problem, that I first installed the Omnibus package and then ...
fibis's user avatar
  • 1
38 votes
7 answers
96k views

Unable to ssh to GCE: "Permission denied (publickey)"

I created a VM via Bitnami in Google Compute Engine. Previously, I was able to ssh via the Bitnami web interface. I tried to ssh via terminal on my Mac but kept getting the Permission denied (...
NEO's user avatar
  • 781
0 votes
2 answers
4k views

bash script to create user then create ssh keys

Please note I am a total linux newbie, please bare that in mind when answering this question as I have very limited knowledge of linux. OS: Debian Squeeze I am using ZSH and have created a function ...
George Reith's user avatar
2 votes
1 answer
7k views

ssh server: could not load host key

I'm configuring ssh server, but have faced an issue. First I generate the private/public rsa keys with: ssh-keygen -t rsa -f /etc/ssh/ssh_host_rsa_key and set password on prompt. Then try to start ...
Pavel A's user avatar
  • 153
65 votes
8 answers
142k views

How to change a SSH host key?

I cloned a server and so they've the same RSA key fingerprint. It seems to be defined in /etc/ssh/ssh_host_rsa_key.pub. What is the correct way to change that? Thanks.
Pascal Polleunus's user avatar
11 votes
2 answers
873 views

What to do when someone logged as root on my server

I have a server running Debian 6.0 with logcheck installed. Yesterday ago, I received this message: Jan 19 19:15:10 hostname sshd[28397]: Authentication tried for root with correct key but not from a ...
Ben's user avatar
  • 213
3 votes
1 answer
136 views

Security issue with ssh on Debian server

I have setup Debian Squeeze on an old laptop to serve as a testbed. I have installed OpenSSH and edited /etc/ssh/sshd_config to use ssh keys and disallow password authentication. I am able, however, ...
Andy's user avatar
  • 31
9 votes
2 answers
9k views

SSH from PuTTy to Debian "authorized_keys is not a regular file" Error

I cannot connect from my Windows 7 computer using PuTTy to a newly configured Debian Squeeze server using SSH RSA key authentication. I get this error when running SSH in debug mode: User myuser ...
tacotuesday's user avatar
  • 1,389
0 votes
1 answer
959 views

Tool for managing ssh keys in a server cluster

I have couple of Debian servers and currently I am struggling around with adding manually ssh keys to the server's authorized_keys files. Do you know an application which can do this in a nice semi-...
disco crazy's user avatar
5 votes
5 answers
19k views

How do I configure sshd on Debian to use Public Key Authentication?

I'm working on a (Debian) Dreamhost VPS, and it seems to want password-based authentication only: adding my RSA and DSA public keys to ~/.ssh/authorized_keys did not change the behavior of requiring a ...
Christos Hayward's user avatar
3 votes
1 answer
2k views

how to automatically mount ~/Private using ecryptfs when logging in via ssh pubkey

Raionale: I want to be able to automatically make backups to a remote machine, which will be encrypted with ecryptfs. The title says it all: I set up ecryptfs-utils on my Debian Squeeze box, and set ...
andreas-h's user avatar
  • 1,124