Roughly 30 minutes ago I installed Erlang & Elixir into our server. It doesn't matter for everyone but until when everyone need help lolz.
So I write down the shortly instruction below.
I. What is erlang & elixir?
Please google to know it.
II. How to install?
Please ensure wget already installed on your server. The next commands retrieve a package that adds a new repository...
[HOW TO] set umask for user has /sbin/nologin environment
Come back to the last week, I worked on case "change umask for SFTP/ SSH user"
At that time, I simply thought that it is umask. So I added umask to ~/.bashrc and ~/.bash_profile.
But nothing to change. It means that I need think logically.
User login -> ssh -> pam.d/ssh -> /etc/profile (~/.bash_profile)
Why?
A few second I see that user's ssh/ sftp has shell environment is /sbin/nologin....
[HOW TO] check slot RAM information on Linux Operating System
One day you need to increase memory for physical server at Data-center. But you can't shutdown it to check the available slot. What's up next?
Luckily if you are using Linux Operating System. Because Linux has dmidecode to check hardware information.
I will tell you about dmidecode. In general you need to deeply understand what are you doing. I learned this mythology by my close friend.
dmidecode...