04-23-2018
Oh ok. Now i get it. When i try to connect to a server, the server will send me its public key from/etc/ssh. But what is the purpose of the keys from ~/.ssh ? It seems like they are not used.
Here's the scenerio:
I have two virtual machines open side by side - Server_A and Server_B. I tried to access Server_B from Server_A. Now Server_B will send me its public key from /etc/ssh.
Now the public key of Server_B will be in ~/.ssh/known_hosts file.
Again the keys found in my ~/.ssh directory are not used. I just don't get it.
---------- Post updated at 10:51 PM ---------- Previous update was at 09:45 PM ----------
I did some research, and i've found that if i try to connect to a server with the private and public keys from my ~/.ssh directory i have to copy the public key to server's authorized_keys file (using either ssh-copy-id or scp). Is that correct ?
9 More Discussions You Might Find Interesting
1. Cybersecurity
Eh... yeah. What the title says. :D (1 Reply)
Discussion started by: PSC
1 Replies
2. UNIX for Advanced & Expert Users
hi,
what is the difference between logging into unix through f-secure ssh client and telnet
is there any more security check is involved
can any one explain
thanks in advance (1 Reply)
Discussion started by: trichyselva
1 Replies
3. Shell Programming and Scripting
I am using Net::SSH::Expect to connect to the device(iLO) with SSH. After the $ssh->login() I'm able to view the prompt, but not able to send any coommands.
With the putty I can connect to the device and execute the commands without any issues.
Here is the sample script
my $ssh =... (0 Replies)
Discussion started by: hansini
0 Replies
4. Shell Programming and Scripting
Hi,
I want to use ssh to add a register key on remote ssh server. Since there are space characters in my register key string, it always failed. If there is no space characters in the string, it worked fine. The following is what I have tried. It seems that "ssh" command doesn't care about double... (9 Replies)
Discussion started by: leaftree
9 Replies
5. Solaris
which should i prefer to install in my system openssh or ssh package provided by SUN by default. can i have two packages installed at the same time? (2 Replies)
Discussion started by: chidori
2 Replies
6. Shell Programming and Scripting
I have write a script which contains
ssh -p 12345 dcplatform@10.125.42.50
ssh 127.0.0.1 -p 5555 "$CMD"
ssh root@$GUEST_IP "$CMD"
before I use public key, it works well, now I want to change to "expect", BUT I don't want to change above code and "parameter position"
I can post a... (1 Reply)
Discussion started by: yanglei_fage
1 Replies
7. Shell Programming and Scripting
I'm using redhat and have an odd issue with a nested ssh call.
ssh -i ~/.ssh/transfer-key -q transfer@fserver1 ]
&& ssh -i ~/.ssh/transfer-key transfer@fserver1 "ssh -i ~/.ssh/sftp-key sftpin@10.0.0.1 ]"
&& ssh -i ~/.ssh/transfer-key transfer@fserver1 "scp -i ~/.ssh/sftp-key /home/S/outbox/*... (2 Replies)
Discussion started by: say170
2 Replies
8. UNIX for Beginners Questions & Answers
Hi,
I want to validate ssh connection one after one for multiple servers..... password less keys already setup but now i want to validate if ssh is working fine or not...
I have .sh script like below and i have servers.txt contains all the list of servers
#/bin/bash
for host in $(cat... (3 Replies)
Discussion started by: sreeram4
3 Replies
9. Shell Programming and Scripting
Hi,
I am trying to complete my bash script in order to find which SSH servers on LAN are still active with the ssh keys, but i am frozen at this step:
#!/bin/bash
# LAN SSH KEYS DISCOVERY SCRIPT
</etc/passwd \
grep /bin/bash |
cut -d: -f6 |
sudo xargs -i -- sh -c '
&& cat... (11 Replies)
Discussion started by: syrius
11 Replies
LEARN ABOUT DEBIAN
ssh-copy-id
SSH-COPY-ID(1) General Commands Manual SSH-COPY-ID(1)
NAME
ssh-copy-id - install your public key in a remote machine's authorized_keys
SYNOPSIS
ssh-copy-id [-i [identity_file]] [user@]machine
DESCRIPTION
ssh-copy-id is a script that uses ssh to log into a remote machine and append the indicated identity file to that machine's ~/.ssh/autho-
rized_keys file.
If the -i option is given then the identity file (defaults to ~/.ssh/id_rsa.pub) is used, regardless of whether there are any keys in your
ssh-agent. Otherwise, if this:
ssh-add -L
provides any output, it uses that in preference to the identity file.
If the -i option is used, or the ssh-add produced no output, then it uses the contents of the identity file. Once it has one or more fin-
gerprints (by whatever means) it uses ssh to append them to ~/.ssh/authorized_keys on the remote machine (creating the file, and directory,
if necessary.)
NOTES
This program does not modify the permissions of any pre-existing files or directories. Therefore, if the remote sshd has StrictModes set in
its configuration, then the user's home, ~/.ssh folder, and ~/.ssh/authorized_keys file may need to have group writability disabled manu-
ally, e.g. via
chmod go-w ~ ~/.ssh ~/.ssh/authorized_keys
on the remote machine.
SEE ALSO
ssh(1), ssh-agent(1), sshd(8)
OpenSSH 14 November 1999 SSH-COPY-ID(1)