Sponsored Content
Full Discussion: SSH - Prompting for password
Top Forums UNIX for Advanced & Expert Users SSH - Prompting for password Post 77487 by hadarot on Saturday 9th of July 2005 02:26:57 AM
Old 07-09-2005
...a more secure method

The only issue with the above outlined process is that you now have a totally unencrypted private key laying around your hard drive, which is a security risk. So you should not always use this method of no password on the key, depending on other security factors, such as if your home directory is on an NFS exported directory within a large network, thus more vulnerable to attack.
Consider using ssh-agent. You can read about it in the online man or www.openssh.org. In this case, you supply a password when you generate your keys. I.e., when you do the ssh-keygen -t rsa command, don't simply hit enter twice, but actually enter a password when it prompts you for one. This will encrypt your private key, and to be able to use it you need to specify the password. But here is the cool thing: with ssh-agent, you only need to enter the password once per login session, and ssh-agent lets you reuse the key with no pawword authentication for the rest of that session. Thus you enter the key's password once, and then you can do ssh, scp, and sftp without any password authentication whatsoever.
(The entire process is real easy to do. For step by step instructions, see http://www.cc.gatech.edu/cns/software/ssh-agent.html.)

Last edited by hadarot; 07-09-2005 at 06:16 PM..
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

sftp prompting for password

I have the problem with SFTP; BELOW IS the entry from my ssh_config file It's prompting me for password all the time when using SFTP. pLEASE help. (1 Reply)
Discussion started by: dsravan
1 Replies

2. Programming

ssh via java prompting for password

Hi, I have set up my remote server for password-less login via ssh. If I run the command on my server - ssh user@remoteserver "ls -l" I get an output, but when I try to do this via java String sCmd = new String{"/usr/bin/ssh", " user@remoteserver", "\"ls -l\""}; Process p =... (3 Replies)
Discussion started by: nrworld
3 Replies

3. UNIX for Advanced & Expert Users

scp without prompting for password

I am trying to copy a file from remote machine using scp. I followed the steps to configure public/private key usage. But still prompting for password when I do ssh. I did the following steps to configure scp without asking password Step 1 : local host > ssh-keygen -t rsa and when prompted... (9 Replies)
Discussion started by: satish@123
9 Replies

4. Red Hat

prompting for passwords even i configured ssh password less authentication

There are two servers : 1. Site 2. Testing from site server i want to connect testing server with ssh password less authentication. i generated public and private keys with ssh-keygen -t rsa on site server. cat id_rsa >> authorized_keys cat id_rsa.pub >> authorized_keys i... (15 Replies)
Discussion started by: rehantayyab82
15 Replies

5. UNIX for Dummies Questions & Answers

[SSH-RSA] Still prompting for password after generating keys

Hello, I'm trying to perform these operations without entering any password, as user "fzd":fzd@machine1> scp /tmp/srcFile1 fzd@machine2:/tmp/$destFile fzd@machine1> scp fzd@machine2:/tmp/$srcFile /tmp/$destFilebut alsofzd@machine1> scp /tmp/srcFile1 machine2:/tmp/$destFile fzd@machine1> scp... (6 Replies)
Discussion started by: fzd
6 Replies

6. Shell Programming and Scripting

Prompting for password

Hi, I have SVN installed in my UNIX solaris server. I actually automated the process that downloads code from SVN server to UNIX solaris server in script. When i run the script, its asking for password to download every element. Its really difficult to type password for every element when... (3 Replies)
Discussion started by: gthangav
3 Replies

7. Shell Programming and Scripting

Ssh is prompting for password

Hi, When i am trying to connect to other server using ssh coomand, it is prompting for password. But i want to hardcode it with username so that it should not prompt for password. And i dont want to use "ssh-keygen" method as it is not allowed. Please help me. Regards, Mukta (7 Replies)
Discussion started by: Mukta
7 Replies

8. Shell Programming and Scripting

SFTP prompting for password even though password is in script

Hi All, I am trying to transfer a file from one server to a remote server using SFTP. Client is not ready for key setup. I am working on Solaris 10. Here is the code. #!/bin/ksh # sample automatic Sftp script to dump a file USER="user1" PASSWORD="pass1" HOST="host1" sftp $USER@$HOST... (6 Replies)
Discussion started by: megha2525
6 Replies

9. UNIX for Dummies Questions & Answers

SFTP without prompting password

Dear unix experts, i have a requirement as below. i need to use SFTP as FTP. ftp -n -v << ENDFTP open test_ftp.server user ftp_user_name ftp_password quit ENDFTP if i use this in a shell script, it's not asking for password. But i want the similar thing achived using... (5 Replies)
Discussion started by: AraR87
5 Replies

10. Shell Programming and Scripting

Crontab - password prompting

// Red Hat Enterprise Linux Server release 6.7 I wanted to pass the password, but when I execute this cron, it stops at Password: prompt. Please advise on how to fix the error. Thank you for tour help in advance. #!/usr/bin/ksh su - pmserver echo "su - pmserver" cd... (2 Replies)
Discussion started by: Daniel Gate
2 Replies
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)
All times are GMT -4. The time now is 04:34 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy