All Questions
23
questions
0
votes
1
answer
30
views
Github Deploy Key Pattern
My Deployment Pattern
I have a setup as shown in the diagram above, where have a github account which owns a number of private repositories. I have a number of machines in the field that each include ...
7
votes
3
answers
34k
views
SSH No Matching Host Key Type Found
I have two servers,
S1: My machine, Windows 8, OpenSSH 8.8p1, OpenSSL 1.1.11 2021-08-24,
S2: A Remote Server, Linux, Open SSH 5.3p1, OpenSSL 1.0.1e-fips 2013-02-11.
The message I have trying to ...
9
votes
1
answer
12k
views
SSH keys: ed25519 vs RSA performance demystified
It is claimed that ed25519 keys are better than RSA, in terms of security and performance. In terms of security, I understand that 4096 bits RSA keys are practically unbreakable for the foreseable ...
4
votes
1
answer
1k
views
How to validate opendkim generated RSA keys
I'm trying to diagnose OpenDKIM validation errors (see this question). Way down in the belly of the beast, I'm at the point where I'm trying to make sure the keys generated are actually correct.
I'm ...
0
votes
1
answer
552
views
What is the best method for adding RSA Key Fingerprints to known_hosts upon provisioning each server?
This question was inspired by this thread
The hypothetical scenario, for context is as follows:
SSH servers, whether they be routers, firewalls etc. are all firstly provisioned within a private + ...
0
votes
0
answers
238
views
Issues with seamless ssh connect via public key
I am trying to set up a seamless ssh connection from one server to another for the first time. While I think I managed to create a user and fitting rsa keys just fine, I can't actually connect via ssh,...
0
votes
1
answer
33
views
which public rsa keybelongs to which secret?
Is there a way to find out which public rsa key belongs to which secret key?
I have two pairs lying around, and would like to know ehich one is which.
0
votes
1
answer
1k
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
from ...
4
votes
1
answer
3k
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 [email protected]:.
...
0
votes
1
answer
86
views
Is my private key safe if I use authenticaiton agent forwarding with the ssh -A option?
I love the option to connect to servers via SSH with the -A option, so I can use my private keys on the server.
This lets me update git/svn repositories and connect to other servers without the need ...
40
votes
9
answers
108k
views
Auto accept rsa key fingerprint from command line
I've tried yes | ssh [email protected] to try to accept the RSA key fingerprint, but am still prompted if I'm sure I want to connect. Is there a way to make this automatic?
-1
votes
2
answers
751
views
Putting My RSA Public Key on RSA Key-Secured Server
Hello and thanks for reading,
Basically, I'm taking over for someone on some system admin duties, learning as I go, but one problem I've run into is not having my public RSA key put onto a particular ...
14
votes
1
answer
7k
views
User@host in a SSH-RSA public key
What role does the user@host that often appears at the end of a public ssh-rsa key play? Is it necessary? Does if serve any purpose in the authentication, or is it simply a record of who and where ...
-2
votes
1
answer
9k
views
Impossible to connect ssh /root/.ssh/known_hosts': No such file or directory
I can't connect to my server with ssh. I have already started a session with ssh but i know if i quit this session, i won't be able to connect again to my server.
ssh [email protected]
@@@@@@@@@@@@@@@@...
0
votes
1
answer
949
views
passwordless scp without keys
I am looking for some option that will allow me to accept files from any server using SCP command. I am aware of the process of creating password-less logins. But what I am looking for is an option on ...
96
votes
1
answer
179k
views
How do I validate an RSA SSH public key file (id_rsa.pub)?
Is there a command I can use to verify the public key (id_rsa.pub), just the format only.
Sometimes I have added a new linebreak, sometimes the file missed the ssh-rsa prefix, so is there a command ...
1
vote
1
answer
204
views
RSA keys - virtual hosts
Setting up passwordless ssh for multiple users has proved to be kind of a pain.
Currently I'm the single user of this Ubuntu 10.04 LTS VPS. I was able to establish a single RSA passkey under my home/...
4
votes
3
answers
9k
views
I created an RSA key but SSH keeps asking the password
On my Mac, I created an RSA key with ssh-keygen -t rsa and saved it as .ssh/authorized_keys on the target server (Ubuntu).
I put this in server's /etc/ssh/sshd_config:
PubkeyAuthentication yes
...
22
votes
4
answers
25k
views
How do I import a RSA SSH key into GPG as the _primary_ private key?
I currently have a SSH key that I've used for a while and I'd like to start using GnuPG with a new keyring. However, given that I've used my key for ages, I would like to still use that key in GPG as ...
2
votes
1
answer
206
views
Setting up RSA with multiple users
I've recently set up a server, and I've set up RSA authentication on said server. My question is, how do I set up RSA authentication for different users? As of right now, the only user that has RSA ...
5
votes
4
answers
936
views
Any point using Denyhosts for SSH when only RSA key logins are allowed anyway?
Right, so if I can only SSH into my box by having the appropriate RSA keys configured, is there any point in using Denyhosts for SSH as well? Or is Denyhosts only looking at keyboard-interactive / ...
3
votes
1
answer
8k
views
Can you make default client key length larger for ssh-keygen?
When users employ ssh-keygen to create RSA key pairs, the default key length is 2048 bits.
You can override that on the command line with the -b argument, but few users will bother.
As mentioned in ...
9
votes
2
answers
4k
views
SSH keys: why is id_rsa larger than id_rsa.pub?
My private key (~/.ssh/id_rsa) is a 1766-byte file, but my public key (~/.ssh/id_rsa.pub) is only 396 bytes in length. Why the massive difference? Is it because the private key is encrypted using AES? ...