"Assistance to connect to servers via ssh once and collect various commands into separate variables"

Post #303038878 by greavette on Monday 16th of September 2019 09:21:38 AM

Thank you @Neo for your reply and suggestion.

I do see the benefit in doing this on each server. From my usecase we won't have this server script on every newly built server and I only scan a certain list of servers based on another report which I then use as my input file. For my usecase I will need to continue with using the script as we've currently written it to reach out to each server, collect data into variables and concatenate this collected data along with other variables from my input file.

I'm hoping there is a way to issue one ssh connection to each server and issue various command line instructions like I do in the script I've provided and collect each result in their own variable.

Thanks in advance for any help anyone can provide me.
 
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ssh-keysign(1M)                                                                                                                    ssh-keysign(1M)

NAME
ssh-keysign - ssh helper program for host-based authentication SYNOPSIS
ssh-keysign ssh-keysign is used by ssh(1) to access the local host keys and generate the digital signature required during host-based authentication with SSH protocol version 2. This signature is of data that includes, among other items, the name of the client host and the name of the client user. ssh-keysign is disabled by default and can be enabled only in the global client configuration file /etc/ssh/ssh_config by setting Host- basedAuthentication to yes. ssh-keysign is not intended to be invoked by the user, but from ssh. See ssh(1) and sshd(1M) for more information about host-based authen- tication. /etc/ssh/ssh_config Controls whether ssh-keysign is enabled. /etc/ssh/ssh_host_dsa_key /etc/ssh/ssh_host_rsa_key These files contain the private parts of the host keys used to generate the digital signature. They should be owned by root, readable only by root, and not accessible to others. Because they are readable only by root, ssh-keysign must be set-uid root if host-based authentication is used. ssh-keysign will not sign host-based authentication data under the following conditions: o If the HostbasedAuthentication client configuration parameter is not set to yes in /etc/ssh/ssh_config. This setting cannot be overri- den in users' ~/.ssh/ssh_config files. o If the client hostname and username in /etc/ssh/ssh_config do not match the canonical hostname of the client where ssh-keysign is invoked and the name of the user invoking ssh-keysign. In spite of ssh-keysign's restrictions on the contents of the host-based authentication data, there remains the ability of users to use it as an avenue for obtaining the client's private host keys. For this reason host-based authentication is turned off by default. See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWsshu | +-----------------------------+-----------------------------+ |Interface Stability |Evolving | +-----------------------------+-----------------------------+ ssh(1), sshd(1M), ssh_config(4), attributes(5) AUTHORS
Markus Friedl, markus@openbsd.org HISTORY
ssh-keysign first appeared in Ox 3.2. 9 Jun 2004 ssh-keysign(1M)

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