(hongkong) 1 core 1 G memory 25G disk 30Mb badwith 1T / month 轻量应用服务器（境外地域） 惊喜折扣，购买时长越长越优惠。单个用户同一配置限购2台。 100%CPU性能，轻松驾驭中小

create a new account, allow sudo permission useradd testuser passwd testuser vi /etc/sudoers 1 2 3 ## Allow root to run any commands anywhere root ALL=(ALL) ALL testuser ALL=(ALL) ALL 1 2 ## Same thing without a password testuser ALL=(ALL) NOPASSWD: ALL chage logon port vi /etc/ssh/sshd_config firewall-cmd –permanent –zone=public –add-port=8822/tcp firewall-cmd –reload iptables -A INPUT -p tcp –dport 8822 -j ACCEPT service sshd restart disable root login vi /etc/ssh/sshd_config

why do we need a vps As a programmer, learning VPS is same as learning a development language. It’s important to understand linux, network, system os fully.