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Dedicated Linux Server
Dedicated Web Server is an entirely loyal to clients and their websites- regarding high traffic, disk space, flexibility to manage software and applications. “Linux Dedicated server” is a “Dedicated Hosting Server” that used Linux Operating System and its features, for Web Hosting.
How to Secure Linux Dedicated Server?
In hosting different service clients, websites hosted on the same server is called shared hosting, and that websites are in danger. Dedicated Server isolates all security risks to host only your site or sites on the server.
It is not enough to say that having dedicated server is safe. Still, there are many security issues like – Viruses, Hacking, Malware, etc. and it's required more security actions to secure your Linux dedicated server.
Here are some tips to secure Linux Dedicated Server:
Update and Upgrade OS
Upgrade Linux version time to time with new features and latest security issues, also update option provided by Linux provider to update their patches. All upgrade and update must be done agilely.
SELinux is Security Enhanced Linux developed access control security system in the kernel which provides security in-depth; it should not be disabled on the server. On command line type “system-config-SELinux” to check status ofSELinux.
Root access is like the master, through it anything can be done, it is better to get access to root in a fortuitous event. Enable secondary login and use Sudo access, which is helpful in monitoring server.
Well, known truth for a password is, it is not secure when it is constant. A strong password must use a mix of keyboard letters and generate new password frequently.
For remote login to a server, Telnet is commonly used, but it is not secure. Secure Shell or SSH has the same function, and it encrypts data during transmission to secure communication.
FTP & HTTP
FTP service often not used for security reasons, and it should be disabled if needed SFTP (Secure File Transfer Protocol) is a better option for it. On HTTP files and folders, set read-only permission for users.
Enable Linux firewall, and it is used to allow and deny traffic on specific ports. It has default rules set which are not enough to secure server. Set rules as needed and apply it in IP tables to filter packets.
An article lists steps to Secure Linux Dedicated Server against hackers, malware, and viruses. Security options covered include – update and upgrade of the operating system, use SELinux, enable secondary login instead of root access, strong passwords. use secure ssh and sftp and enable Firewall. A systematic article on Linux Dedicated Security would contain brief on Linux server security, best practices, security software, and measures and how to secure server from hackers.