how to secure vps

hii... please tell me how to secure vps?

Using a strong generated password should be enough.

Disable and block ports that you don't use.
Change port of SSH.
Install a Firewall (CSF)
Configure the rules with ModSecurity and Suhosin.
Alternative to CSF is using IPTables + Fail2ban.
Install Fail2ban to ban brute force attacks and attemps.
Monitorize and check regulary the logs.
Be careful with the permissions on the folders.

Change the port of panels, scripts and other things you have.
Log all data.
Make backups regulary.

The most important you can do is using the SSH Key-Based Authentication, it will prevent and will make more harder to login on your VPS.

Secure VPS deals are available form oissite.com and digitalserver.com.mx.
They are cheap and reliable for 24 hours a day.

There are some things you need to keep in mind.There will be a lot of attention on two topics.
1.OS Security
2. Application Security
OS Security - All type of login ,Firewall setting,Patch update , Hardening permission policy are very impotent.
Application Security - Penetration test
There are etc etc policy have maintain,if you want to more secure your server.Just follow and monitor upstream notification.

Which Operating System? Windows or Linux? Or?