Shell Script to run commands on remote servers | ssh -t & -T option | ssh basic key based auth setup

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Hello guys , this video is about creating a shell script that can be used to run commands on remote servers. I started with explaining the basic setup for ssh key based authentiction. This is needed to ensure that we can connect to remote servers without any prompt for password. After that , I pointed out the .hushlogin file usage that can be used to remove messages while login to ssh. Next , I created a basic shell script to run the commands in remote servers . At end , I explained the meaning of -t and -T option in ssh that are used for allocation of pseudo terminal and to disable pseudo terminal allocation with some examples.
Topics covered in this video are :
- shell script to run commands on remote servers
- basic ssh setup for key based authentication to remote servers
- ssh -t and -T optons
- ssh login to remote servers
- disable message on login with ssh
- .hushlogin file in linux
- ssh command in shell scripting
#ssh #remote #servers #shell #script
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Опубликовано:

28 дек 2021

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Комментарии : 18

@Aryabarta-ghxy 3 месяца назад

Excellent information!

@kelvintan857 Год назад

Hi lecturer, Thanks for your video. I really learn something from you.

@jlone1378 2 года назад

Thank you man

@pravi71 2 года назад

When we type top as one of the commands to be passed to ssh in here document, despite using -t and -T, why is it not working?

@PedagogyV 2 года назад

can't say at this moment . will have to check. may be due to top being interactive command like nano . can you try giving top as top -b -n 1

@ishurajbarsainya169gmailcom 2 года назад

Thankyou brother

@gouravsaini7446 2 года назад

Hi, Vicky Thank you so much for this video, Also I want to write the config file which I'll define as per the list of servers. I don't know in which way I can give the hosts info in the configuration file and then my shell script will login to each server using loop and read a specific file. Can you make a video to create the configuration file in all the ways?

@PedagogyV 2 года назад

I'll advice you to go with ansible. For multiple servers ansible is best to use and its easy to learn for this purpose. I just explained here basics but best will be to go with ansible.

@simantachoudhury4543 2 года назад

If the server having password then how can we proceed..

@PedagogyV 2 года назад

serverfault.com/questions/241588/how-to-automate-ssh-login-with-password this will help

@thanoswasright626 Год назад

Which machine does the script need to be on? the host or the servers?

@PedagogyV Год назад

ofcourse host.. you should see ansible also for these things . Its better to use ansible .

@mahadeoraut1471 2 года назад

It helped me alot. How I can pass variable to remote server script.!

@PedagogyV 2 года назад

elaborate pls

@mahadeoraut1471 2 года назад

@@PedagogyV I have a script on remote server.I'm able to run script(contain only command) remotely.Now my requirement is to pass some input variable to the script from remote.

@mahadeoraut1471 2 года назад

Script is echo "enter any date like YYYY-MM-DD" read a echo "enter string which want to grep" read b I have to pass variable a and b to remote server.

@PedagogyV 2 года назад

@@mahadeoraut1471 stackoverflow.com/questions/51946970/bash-how-to-pass-variable-to-the-remote-bash-script you can read locally and then pass it to remote to..ping me in telegram if it doesn't work