passwordless ssh

Author: xtutran

ssh/README.md

@@ -0,0 +1,48 @@
+## SSH Passwordless Login Using SSH Keygen, [ref](https://www.tecmint.com/ssh-passwordless-login-using-ssh-keygen-in-5-easy-steps)
+### 1. Environment
+Example: SSH password-less automatic login from localhost to Cloudera-VM  with user cloudera.
+```
+SSH Client : localhost ( MacOS  )
+SSH Remote Host : 127.0.0.1 ( RedHat - cloudera-vm )
+```
+
+### 2. Create Authentication SSH-Kegen Keys on Client machine
+```bash
+ssh-keygen -t rsa
+```
+
+### 3. Create .ssh Directory on Remote machine
+```bash
+ssh cloudera@127.0.0.1 mkdir -p .ssh
+```
+
+### 4. Upload Generated Public Keys from Client to Remote machine 
+```bash
+cat .ssh/id_rsa.pub | ssh cloudera@127.0.0.1 'cat >> .ssh/authorized_keys'
+```
+
+### 5. Set Permissions on Remote machine
+```bash
+ssh cloudera@127.0.0.1 "chmod 700 .ssh; chmod 640 .ssh/authorized_keys"
+```
+
+### 5. Make an alias for Remote server
+```bash
+vi ~/.ssh/config
+```
+
+ * 3022 is forwarding port of 22 from VM to my local machine
+```
+Host cloudera-vm
+    HostName 127.0.0.1
+    Port 3022 
+    User cloudera
+    IdentityFile ~/.ssh/id_rsa
+```
+
+```bash
+ssh cloudera-vm
+```
+
+:boom: Enjoy!
+