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docs/merlin7/02-How-To-Use-Merlin/ssh-keys.md
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@@ -1,13 +1,4 @@
---
title: Configuring SSH Keys in Merlin
#tags:
keywords: linux, connecting, client, configuration, SSH, Keys, SSH-Keys, RSA, authorization, authentication
last_updated: 15 Jul 2020
summary: "This document describes how to deploy SSH Keys in Merlin."
sidebar: merlin7_sidebar
permalink: /merlin7/ssh-keys.html
---
# Configuring SSH Keys in Merlin
Merlin users sometimes will need to access the different Merlin services without being constantly requested by a password.
One can achieve that with Kerberos authentication, however in some cases some software would require the setup of SSH Keys.
@@ -22,14 +13,14 @@ User can check whether a SSH key already exists. These would be placed in the **
is usually the default one, and files in there would be **`id_rsa`** (private key) and **`id_rsa.pub`** (public key).
```bash
ls ~/.ssh/id*
ls ~/.ssh/id*
```
For creating **SSH RSA Keys**, one should:
1. Run `ssh-keygen`, a password will be requested twice. You **must remember** this password for the future.
* Due to security reasons, ***always try protecting it with a password***. There is only one exception, when running ANSYS software, which in general should not use password to simplify the way of running the software in Slurm.
* This will generate a private key **id_rsa**, and a public key **id_rsa.pub** in your **~/.ssh** directory.
* Due to security reasons, ***always try protecting it with a password***. There is only one exception, when running ANSYS software, which in general should not use password to simplify the way of running the software in Slurm.
* This will generate a private key **id_rsa**, and a public key **id_rsa.pub** in your **~/.ssh** directory.
2. Add your public key to the **`authorized_keys`** file, and ensure proper permissions for that file, as follows:
```bash
@@ -92,7 +83,7 @@ to the **ssh-agent**. This must be done once per SSH session, as follows:
ssh-add -l | grep "/data/user/$(whoami)/.ssh"
```
* If no key is returned in the previous step, you have to add the private key identity to the authentication agent.
* If no key is returned in the previous step, you have to add the private key identity to the authentication agent.
You will be requested for the **passphrase** of your key, and it can be done by running:
```bash
@@ -111,7 +102,7 @@ However, for NoMachine one always need to add the private key identity to the au
```bash
ssh-add -l | grep "/data/user/$(whoami)/.ssh"
```
2. If no key is returned in the previous step, you have to add the private key identity to the authentication agent.
2. If no key is returned in the previous step, you have to add the private key identity to the authentication agent.
You will be requested for the **passphrase** of your key, and it can be done by running:
```bash