Traverse through list of servers using ssh non-interactively.
I have 300 servers listed in servers.txt
I motto is to check if my id "user1" has sudo privileges on the 3000 servers. I m using sudo -l to check if I have privileges or not. If wish to check this either non-interactively; if not; interactively.
Below is the script I wrote:
Code:
newinput="server.txt"
while IFS= read -r var
do
echo " Variable is:"$var
sshpass -p mypassword ssh -t user1@$var 'echo "mypassword" | sudo -S -l; echo $?; exit'
done < "$newinput"
However; after returning non-zero for echo $? the script does not traverse through the list and checks only the first server.
Could you propose a feasible solution to the problem ?
I have written this code, and according to my research it SHOULD be going down the list until it is finished, but I am getting blank feedback. Nothing is being output as far as I can tell.
#!/bin/sh
while echo Enter to start traversing
read enter
do
read list <&3
echo $list
done
any... (2 Replies)
Hi all,
I have a script written successfully and tuned by our members, now I am trying to execute this script from a taxi server.
My aim is I want to connect to four servers via ssh where I want to ran a script or run some commands and write the output to a file in the Taxi server.
I... (12 Replies)
Hi All,
Okay, I need help.
I need to ssh in to multiple linux servers execute certain commands and get them to email and print on the screen when the script is being executed.
So below is my script. Its not working :-(.
#!/bin/bash
#linux/UNIX box with ssh key based login... (7 Replies)
Hello
Am trying to run top /glance non-interactively using ssh
from redhat to hp-ux hosts
but getting following errors..
=======================
ssh msi 'top -n 1'
Sorry, I need to know a more specific terminal type than "unknown".
ssh msi top -d1 -n20 > /tmp/top.out
Sorry, I need... (3 Replies)
Hi all.
Im working in a telco Environment and recently setup a new server. The other servers are a combination of Solaris + Linux machines.
Using my new server , I can ping all other servers ( solaris + redhat linux )
but the issue lies where I try to ssh.
I can only successfully ssh linux... (3 Replies)
There are 4 remote hosts that I have stored in an array. A ssh trust has been created from the local host to each of the remote hosts.
I am trying to ssh to each of the servers in a for loop as shown below.
declare -a host
host}]="server1"
host}]="server2"
host}]="server3"
... (9 Replies)
Hello friends,
We have around 500 servers (HPUX, AIX and linux) and all of them need to be accessed from our management box (linux) via password-less ssh.
Out of 500 around 150 servers are setup password-less. We need to setup password-less SSH for remaining servers. First we need to get the... (3 Replies)
Hello,
I tried ssh in debug mode and below is the debug snippet.ssh to a host is not working from any of the hosts
No credentials cache found
debug1: Miscellaneous failure
No credentials cache found
debug1: Next authentication method: publickey
debug1: Offering RSA public key:... (7 Replies)
Hi folks.
I'm pretty new to unix, while I'm learning a lot I'm finding bash scripting quite confusing. Im sure it's not really, my head just hasn't clicked with it.
Anyway, I need a script to loop the ip addresses stored in a file and run a "pgrep <process>" and return the pid or some... (2 Replies)
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
knife-ssh
KNIFE-SSH(1) Chef Manual KNIFE-SSH(1)NAME
knife-ssh - Run a command or interactive session on multiple remote hosts
SYNOPSIS
knife ssh QUERY COMMAND (options)
-a, --attribute ATTR
The attribute to use for opening the connection - default is fqdn
-C, --concurrency NUM
The number of concurrent connections
-m, --manual-list
QUERY is a space separated list of servers
-P, --ssh-password PASSWORD
The ssh password
-x, --ssh-user USERNAME
The ssh username
-i, --identity-file IDENTITY_FILE
The SSH identity file used for authentication
-p, --ssh-port PORT
The ssh port
--[no-]host-key-verify
Verify host key, enabled by default.
DESCRIPTION
The ssh sub-command opens an ssh session to each of the nodes in the search results of the QUERY. This sub-command requires that the
net-ssh-multi and highline Ruby libraries are installed. On Debian systems, these are the libnet-ssh-multi-ruby and libhighline-ruby pack-
ages. They can also be installed as RubyGems (net-ssh-multi and highline, respectively).
TERMINAL MULTIPLEXING AND TERMINAL TAB SUPPORT
knife ssh integrates with several terminal multiplexer programs to provide a more convenient means of managing multiple ssh sessions. When
the COMMAND option matches one of these, knife ssh will create multiple interactive ssh sessions running locally in the terminal multi-
plexer instead of invoking the command on the remote host.
The available multiplexers are:
interactive
A built-in multiplexer. interactive supports running commands on a subset of the connected hosts in parallel
screen(1)
Runs ssh interactively inside screen. ~/.screenrc will be sourced if it exists.
tmux(1)
Runs ssh interactively inside tmux.
macterm (Mac OS X only)
Opens a Terminal.app window and creates a tab for each ssh session. You must install the rb-appscript gem before you can use this
option.
SEE ALSO knife-search(1)AUTHOR
Chef was written by Adam Jacob adam@opscode.com with many contributions from the community.
DOCUMENTATION
This manual page was written by Joshua Timberman joshua@opscode.com. Permission is granted to copy, distribute and / or modify this docu-
ment under the terms of the Apache 2.0 License.
CHEF
Knife is distributed with Chef. http://wiki.opscode.com/display/chef/Home
Chef 10.12.0 June 2012 KNIFE-SSH(1)