[LINUX] Corrective action for Bad owner or permissions on /home/(user_name)/.ssh/config error that occurs when executing an SSH command

An error occurs when trying to ssh to an EC2 instance

The environment is as follows

• Ubuntu 16.04
• OpenSSH_7.2p2 Ubuntu-4ubuntu2.10 OpenSSL 1.0.2g

Execution command

ssh (Hostname)

Error statement

Bad owner or permissions on /home/(user_name)/.ssh/config

Cause

If the permissions of ~ / .ssh / config are loose (chmod 777, etc.) When executing the ssh command Returns a Bad owner or permissions on /home/(user_name)/.ssh/config error.

Solution

When I restricted the permissions of ~ / .ssh / config to read / write by the owner, the error disappeared and it started to work normally.

Solution

$ chmod 600 ~/.ssh/config