Best Linux Security Practices for Oracle Servers

 Introduction

Linux security is critical for protecting Oracle Databases. Here are best practices every DBA should follow.

Tips:

1. Update Linux Regularly

sudo yum update -y # For RHEL/CentOS

sudo apt update && sudo apt upgrade -y # For Ubuntu/Debian

2. Disable Unnecessary Services

systemctl disable telnet

systemctl stop ftp

3. Secure SSH Access

Use key-based authentication

Change default SSH port from 22

4. Set Proper File Permissions

chmod 750 /u01/app/oracle

chown oracle:oinstall /u01/app/oracle

5. Use a Firewall

Configure iptables or firewalld to allow only necessary ports.

Conclusion

Applying these Linux security practices reduces the risk of unauthorized access to your Oracle servers.