From 9f3e0d4e2145dd4196cd08b1527aa951f024ec36 Mon Sep 17 00:00:00 2001
From: Junv Zhao <wahyd4@gmail.com>
Date: Mon, 6 Jan 2020 00:01:03 +1100
Subject: [PATCH] Add linux auth without password

---
 categories/devops/linux.md | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/categories/devops/linux.md b/categories/devops/linux.md
index cbb0dc8..98ff8af 100644
--- a/categories/devops/linux.md
+++ b/categories/devops/linux.md
@@ -7,6 +7,18 @@ Do not use default `22` port
 ```bash
 ssh user@ip -p 22222
 ```
+
+Login without password
+
+```bash
+# adds private key identities to the authentication agent
+ssh-add ~/.ssh/id_rsa
+
+# use locally available keys to authorise logins on a remote machine
+
+ssh-copy-id user@ip -p 22222
+```
+
 ### IP table
 ### Cron job