I have an issue with password less authentication via ssh ( v2)
I have two servers Server A and Server B, following are the server details
I have copied the public keys across both the servers and pasted them in authorized_keys file. Following are the things i have checked
a] .ssh -- direcotry permission is set to 700 on both boxes
b] authorized_keys file is 640 in terms of permission
The issue is I m able to connect to Server A from Server B as user xyz ( whose keys have been exchanged for paswordless auth) .When I try the same from Server B to Server A I fail and it prompts me for a password.
I am writing a script that needs to access various servers some of which are not ssh enabled. In order to access the ssh enabled servers I am using the following command to generate the public key :
ssh-keygen -t rsa
Is there a similar command for the other servers as well.
If I try to use... (1 Reply)
I am writing a script that needs to access various servers some of which are not ssh enabled. In order to access the ssh enabled servers I am using the following command to generate the public key :
ssh-keygen -t rsa
Is there a similar command for the other servers as well.
If I try to use... (1 Reply)
Hi all,
I have N number of AIX hosts, where I need to login frequently and do some routine tasks (run some scripts). I need to setup ssh public/private key, so I can auto-login via a master (wrapper) script and run each script in each server.
I am trying to setup/generate ssh keys, but am... (6 Replies)
Hi,
We are currently implementing an Identity Management application which has several Unix systems as its target system. A pre-defined connector will be installed to provide connection between the Identity Management application and the Unix target system. The connection will use Public Key... (1 Reply)
Hi, I've used the following way to set ssh public key authentication and it is working fine on Solaris 10, RedHat Linux and SuSE Linux servers without any problem. But I got error 'Server refused our key' on Solaris 8 system. Solaris 8 uses SSH2 too. Why? Please help. Thanks.
... (1 Reply)
Hi,
please guide me create a public/private key using ssh-keygen, lets say I have been access to server named pngpcdb1with a userid and password ...!!! and also please explain in detail the concept of these keys and ssh as I was planning to use them in ftp related scripts..! Thanks in... (1 Reply)
My password-free ssh connection has worked in the past but has stopped working and I can't get it going again.
The files in .ssh on both source and target are set to 600:
drwx------ 2 ingres 1024 Mar 2 13:57 .
drwxr-xr-x 25 ingres 2048 Mar 29 09:38 ..
-rw------- 1 ingres ... (9 Replies)
I generated a public key that we are using for ssh and sftp but I noticed that I am still being asked for a password when I run my script. is there something I need to put in my script?
Our linux guy said he placed keys on both servers. (2 Replies)
Discussion started by: MJCreations
2 Replies
LEARN ABOUT DEBIAN
mussh
MUSSH(1) MUltihost SSH MUSSH(1)NAME
mussh - MUltihost SSH
SYNOPSIS
mussh [ OPTIONS ] <-h host... | -H hostfile > [-c cmd ] [-C scriptfile ]
DESCRIPTION
mussh is a shell script that allows you to execute a command or script over ssh(1) on multiple hosts with one command. When possible mussh
will use ssh-agent(1) and RSA/DSA keys to minimize the need to enter your password more than once.
OPTIONS --help Prints full help text.
-d Same as -d 1
-d 0 Turns debug mode off.
-d 1 On STDERR prints out basic actions and ssh-agent activity and which host is being connected to.
-d 2 Includes all of the output from -d1, the list of hosts, the command/script as it will be executed on each host, and a lot more.
-v Same as -v 1
-v 1 Sets ssh in debug1 mode by passing "-v" to ssh.
-v 2 Sets ssh in debug2 mode by passing "-v -v" to ssh.
-v 3 Sets ssh in debug3 mode by passing "-v -v -v" to ssh.
-m [n] Run concurrently on 'n' hosts at a time (asynchronous). Use '0' (zero) for infinite. (default)
-q No output unless necessary. This will cancel -d and -v if after them on the command line. It also suppresses the output of each
host. This will NOT suppress the password/passphrase prompts required to log into each host.
-i <identity> [identity ..]
Load an identity file. When -i is used, the specified identity file(s) is loaded instead of the default identity. You can load as
many RSA/DSA identities as you'd like.
-o <ssh-args>
Args to pass to ssh with -o option. See the ssh(1) man page for more info on the -o option.
-a Force loading ssh-agent. Without this flag, mussh will not load another agent when one is already loaded.
-A Do NOT load ssh-agent. If no agent is loaded you will be prompted for a password or passphrase by ssh for each host. If you do not
have RSA/DSA keys for the destination hosts, this will save you some hassle.
-b Print each hosts' output in a block without mingling with other hosts' output.
-B Allow hosts' output to mingle. (default)
-u Unique. Eliminate duplicate hosts. (default) If you a host or user@host occurs more than once across files specified with -H or
hosts specified with -h, the host or user@host is used only once.
-U Do NOT make host list unique. This simply overrides the -u flag. This will cause scripts to be executed on duplicate hosts once
per listing.
-P Do NOT fall back to passwords on any host. This will skip hosts where keys fail. If you use this with '-d' you'll still see which
hosts failed.
-l <login>
Use 'login' when no other is specified with hostname.
-L <login>
Force use of 'login' name on all hosts. These can be handy for adding 'root@' to hostnames kept in a file for -H option. With -h
it means you get to type less.
-s <shell>
Path to shell on remote host. (Default: bash)
-t <secs>
Timeout setting for each session. (requires openssh 3.8 or newer)
-V Print version info and exit.
PROXY ARGS -p [user@]<host>
Host to use as proxy. (Must have mussh installed)
-po <ssh-args>
Args to pass to ssh on proxy with -o option.
HOST ARGS -h [user@]<host> [[user@]<host> ..]
Add a host to list of hosts. May be used more than once.
-H <file> [file ..]
Add contents of file(s) to list of hosts. Files should have one host per line. Use "#" for comments.
COMMAND ARGS
If neither is specified, commands will be read from standard input.
-c <command>
Add a command or quoted list of commands and args to list of commands to be executed on each host. May be used more than once.
-C <file> [file ..]
Add file contents to list of commands to be executed on each host. May be used more than once.
PROXY MODE
When proxying, mussh can use a single remote server to as a bastion host. All hosts will be connected to from the central host rather than
from the computer where you are initially running mussh. This can be handy when you only have access to one machine behind a firewall.
The proxy host must have OpenSSH 2.3 or greater, or an sshd that works with ForwardAgent under ssh2. Proxy server must also have mussh
installed in your PATH. To verify that it is in your path use "ssh user@proxy 'which mussh'". Use "ssh user@proxy 'echo $PATH'" to deter-
mine what your path is.
SSH-AGENT INTERACTION
Assuming that you're not turning off the agent with '-A' mussh will attempt to use ssh-agent(1). Normally mussh will get rid of the agent
when it exits. See EXAMPLES for examples.
EXAMPLES
There is an EXAMPLES file with detailed examples.
The basic command:
$ mussh -h foo bar baz
A simple command:
$ mussh -h foo bar baz -c 'rpm -e emacs'
A simple command asynchronously:
$ mussh -h foo bar baz -c 'rpm -e emacs' -m
Using a specific key:
$ mussh -h foo bar baz -c 'rpm -e emacs' -i ~/.ssh/my_other.key
Loading a list of hosts from a file:
$ mussh -H /tmp/hostlist.txt -c 'rpm -e emacs'
Loading a script from a file:
$ mussh -h foo bar baz -C /tmp/scriptfile.sh
BUGS
Please report any bugs at http://sourceforge.net/projects/mussh/
AUTHOR
Dave Fogarty <doughnut at doughnut dot net>
SEE ALSO ssh(1), ssh-agent(1)Doughnut August 2005 MUSSH(1)