Overview: Linux VPS servers have their advantages. In fact, Linux VPS are much more secure when compared to other operating systems like Windows because of Linux’s security model (LSM). But they’re not perfect, and definitely not invulnerable. In this post we’ll go over Nine ways you can secure your VPS and protect it from hackers.
Let’s get started, here are Nine ways to keep your VPS secure.
1: Disable root logins:
If you want a secure VPS? Then you should never login as the root user. By default, every Linux VPS has “root” as a username, and so hackers try brute force attacks to crack the password and gain access. Disabling logins from the “root” username adds another layer of security, as it stops hackers from simply guessing your user credentials.
2: Change the SSH port:
Hacking the SSH port is very difficult for hackers until they can trap the SSH. BY changing the port number of SSH can prevent malicious scripts from directly connecting to the default port (22).
When you to this, you will need to open up /etc/ssh/sshd_config and to change the appropriate setting.
By changing the SSH port you can secure your virtual private server (VPS).
3: Keep server software updated:
For secure to VPS Hosting you have to keep server software updated. It is not difficult to update your VPS security.
You can simply use the rpm/yum package manager (CentOS/RHEL) or apt-get (Ubuntu/ Debian) to upgrade to newer versions of installed software, modules, and components.
You can also configure the operating system to delivered yum package update notification via email. With the help of this technique you can easy to keep track of what’s changing. And f you’re happy to automate the task, you can set up a cronjob to apply all available security updates on your behalf.
If you’re using a panel, such as Plesk or cPanel, then you’ll need to update that, too. Most panels can be set to update themselves automatically, and cPanel uses Easy Apache for most package updates.
With the help of this way you can secure your Virtual private server VPS:
4: Have a strong password policy:
It is key that your password policy prevents users from reusing old passwords. Some users may try to work around this by changing a single character to create a “new” password. It is important users are discouraged from doing this, as this makes passwords easier to guess in the event of a breach you can boost security by requiring all passwords to mix lower and upper case, to avoid the use of dictionary words and to include numbers and symbols. Enable password aging to force users to change old passwords at regular intervals, and consider restricting the re-use of previous passwords. So keep in mind if you want to secure your VPS server from some other cyber-attacks so you have to a strong password policy.
5: Configure a firewall:
If you want to secure your VPS server then you need to configure a firewall in VPS server.
There are many types of firewall but in this article we are considering only two firewall
Here are the two firewall given to below.
A: Net filter Firewall
B: TCPWrapper firewall.
Net filter Firewall:
Net filter is a firewall that comes integrated with the Linux Kernel, and you can configure it to filter out unwanted traffic. With the help of Net filter and IP tables you can fight against distributed denial of service (DDos) attacks.
TCPWrapper is another useful application, a host-based access control list (ACL) system that’s used to filter network access for different programs. It offers host name verification, standardized logging and spoofing protection, all of which can help to beef up your security.
Other popular firewalls include CSF and APF, both of which offer plugins for popular panels like cPanel and Plesk.
6: Use SFTP, not FTP:
FTP does not offer a secure channel to transfer files between hosts. SFTP offers a secure channel for transferring the files between the hosts. FTP is accessible anonymously, and in most cases, it is not encrypted. SFTP encrypts the data before sends it to another host.
7: Use a Firewall:
If you want to secure your VPS server against to hackers, so firewall will play the most important role protect the VPS Server from hackers. Installing and configuring a firewall should be one of the first things that you do when setting up and securing a VPS or bare metal server.
8: Implement antivirus software:
Antimalware and antivirus software can be a great second defense against harmful software that may make it past your firewall. While the firewall can deny access to well-known sources of malicious traffic, it’s not a catch-all. Paid security software may cost a little extra, but it is worth the investment. These solutions use their hard-earned revenue to hire top talent and programmers that will keep antivirus software up-to-date and relevant.
9: Use SSL Certificates For Everything:
SSL certificate help you create an encrypted channel between the server and client to ensure that nothing disrupts your privacy.
In order to keep your sensitive data safe, SSL certificates are crucial to every type of hosting, whether that’s transmitting files, sending emails or entering your login details.
Conclusion: There are millions of hackers around the world, working around the clock to uncover even the slightest security weaknesses in your VPS. With the help of these nine ways to you can secure your virtual private server (VPS).
In case you have any additional questions regarding to this post, feel free to submit them in the comment section below.