1.Linux Operating Systems Security Tuning 
 
Its very essential to secure your Linux operating system since its where all your applications run.

What we can do :
1. Review User Accounts 
2. Review the policies implemented 
3. Review File Systems Permissions
4. Review your Operating Systems Services.

2.Host Intrusion Detection

Operating Systems Host intrusion detection is used to investigate suspected or unusual activities by looking for changes in the system files, checking /analyzing the logs, keep track of installed software and running services.
Some of the open source HIDs we currently support:
a. OSSEC
b. OpenDLP
c. AIDE
d. SAMHAIN

3.Hardening 

We use multiple tools and scripts to lock-down or harden your Linux operating system and enhance it's security.Configuring your OS security will decrease it's susceptibility to compromises.


4.SELinux.

Security-Enhanced Linux (SELinux) is a kernel security module which used to enhance existing security solutions.In short it can help protect you from bugs in your applications.