Here, we will explain the setup of CentOS 7 for intermediate users. The following sites will be helpful for VPN recommended servers. https://vpshikaku.com/
The environment is as follows
OS:Centos7
!! !! Details added
yum install -y epel-release 
#Add EPEL repository
yum install -y vim zlib-devel.x86_64 gcc.x86_64 zip unzip make wget tar htop
Install these software with yum. By the way, I'm a Vim sect.
yum -y install ibus-kkc vlgothic-*
localectl set-locale LANG=ja_JP.UTF-8
source /etc/locale.conf
vim /etc/ssh/sshd_config
- # Port 22
+ Port 2222
(Any port number can be added.)
PasswordAuthentication no
systemctl restart sshd
thank you for your hard work. The setup of softether is as follows. https://qiita.com/honahuku/items/1fdc8c6b6ad49816f1a0