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1
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2answers
63 views

Secure EC2 instance from logging without .pem file

I see here and here (under Connecting to Your Linux Instance if You Lose Your Private Key) ways to access EC2 instance without a .pem file that was created when the instance was created. I would like ...
0
votes
0answers
62 views

Why would a server's RSA fingerprint change every few seconds?

In the past I've been able to connect to my server via SFTP with no problems, but suddenly yesterday it warned me that the fingerprint for the RSA key sent by the remote host had changed. I've ...
2
votes
2answers
552 views

Check the fingerprint for the ECDSA key sent by the remote host [closed]

I have got the well-known warning message when trying to ssh into a server: $ ssh whateverhost @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ WARNING: REMOTE HOST IDENTIFICATION HAS ...
0
votes
1answer
167 views

ssh-keygen key verification changed in OpenBSD 5.7, how to verify host_key?

OpenBSDs "ssh-keygen -l" output format has changed in 5.7. How to verify the host key when connecting from older ssh versions? Until OpenBSD 5.6 the host_keys fingerprint output format was like this: ...
0
votes
0answers
96 views

Timestamp response behaviors in different tools

I was testing out icmp time stamp response on one of my servers using ping and hping3. Here is result of hping3 # hping3 --icmp-ts x.x.x.x HPING x.x.x.x: icmp mode set, 28 headers + 0 data bytes ...
1
vote
1answer
2k views

Postfix still complains that “certificate verification failed” even when “smtp_tls_security_level = fingerprint”

I'm attempting to use Postfix (version 2.6.6 on RHEL6) to connect to and send mail via a mail relay on our internal network. I want to connect with STARTTLS on port 25 (port 465 is not available on ...
2
votes
1answer
102 views

How to add fingerprint templates to active directory?

Is there any way to add fingerprint templates to active directory? If yes then please suggest number of possible ways.... and if there is any SDK or API through which we can achieve storing ...
6
votes
3answers
6k views

Fingerprint of PEM ssh key

I have a PEM file which I add to a running ssh-agent: $ file query.pem query.pem: PEM RSA private key $ ssh-add ./query.pem Identity added: ./query.pem (./query.pem) $ ssh-add -l | grep query 2048 ...
0
votes
1answer
28 views

Linux / Ubuntu fingerprinting command/method(s) to identify system wide differences in hardware / packages / configurations between 2 environments

I have 2 separate environments, and some strange behaviour occurring in one environment that is not in the other. Specifically the error is related to the PHP: Fatal error: Nesting level too deep - ...
9
votes
4answers
14k 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.
2
votes
2answers
717 views

Different ssh fingerprints on server. (MITM attack?)

When I try to ssh to my server in Germany from my UK laptop I get: IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY! Someone could be eavesdropping on you right now (man-in-the-middle attack)! It ...
1
vote
1answer
1k views

How to obtain the DSA fingerprint from a hosting server

this is not a duplicate of Get SSH fingerprint from remote server securely? My question is what are the ways to obtain the public-key fingerprint of a remote server. I have a shared hosting account ...
11
votes
6answers
2k views

SSH into a box with a frequently changed IP

I have some cloud boxes that change their IP frequently. I ssh using the hostname but have to edit the known_hosts file every time the server launches because of this error message: ...
0
votes
3answers
1k views

Determine if the “yes” is necessary when doing an SCP

I'm writing a Groovy script to do an SCP. Note that I haven't ran it yet, because the rest of it isn't finished. Now, if you're doing an scp for the first time, have to authenticate the fingerprint. ...