# Knife bootstrap linux command

**URL:** <https://discourse.chef.io/t/knife-bootstrap-linux-command/13092>\
**Category:** Chef Infra (archive)\
**Created:** [May 21, 2018, 3:57pm UTC](https://discourse.chef.io/t/knife-bootstrap-linux-command/13092 "2018-05-21T15:57:55Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![prash](https://avatars.discourse-cdn.com/v4/letter/p/d07c76/32.png) [@prash](https://discourse.chef.io/u/prash)\
**Post date:** [May 21, 2018, 3:57pm UTC](https://discourse.chef.io/t/knife-bootstrap-linux-command/13092/1 "2018-05-21T15:57:56Z")

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Greetings Pros,

Our Linux servers mostly has paraphrase's which required for login in to the machine . when i am trying to execute knife bootstrap command with a single server it prompts me a screen asking me to enter the paraphrase , then when i enter the paraphrase the chef client executes and job can will be performed successfully . But when we are trying the same on multiple nodes we have a script where we define IP, host names and .pem key . and for non paraphrase servers the scripts executes successfully but for Paraphrase enabled i get the below output please check the screenshot

![image](https://sea2.discourse-cdn.com/flex016/images/transparent.png)

Is there any way i can pass the paraphrase value in the knife bootstarp command's ? or is there any way i can define where the bootstrap command can read this an input variable and performs the action in silent method

Thanks  
Prash

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**Author:** ![thommay](https://avatars.discourse-cdn.com/v4/letter/t/f08c70/32.png) [@thommay](https://discourse.chef.io/u/thommay)\
**Post date:** [May 21, 2018, 4:06pm UTC](https://discourse.chef.io/t/knife-bootstrap-linux-command/13092/2 "2018-05-21T16:06:33Z")

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The normal way of doing this would be to use an ssh agent.

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<div class="post-metadata">

**Author:** ![prash](https://avatars.discourse-cdn.com/v4/letter/p/d07c76/32.png) [@prash](https://discourse.chef.io/u/prash)\
**Post date:** [May 21, 2018, 4:19pm UTC](https://discourse.chef.io/t/knife-bootstrap-linux-command/13092/3 "2018-05-21T16:19:21Z")

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> [@thommay](#):
>
> ssh agent

can you please provide me with an exmple, do i need to configure ssh-agent on each node?