Linux® Quick Fix Notebook

Chapter 14. Linux Firewalls Using iptables

In This Chapter

• What Is iptables?

• Download and Install the iptables Package

• How to Start iptables

• Determining the Status of iptables

• Packet Processing in iptables

• Targets and Jumps

• Important iptables Command Switch Operations

• Using User-Defined Chains

• Saving your iptables Scripts

• Fedora’s iptables Rule Generator

• Recovering from a Lost Script

• Loading Kernel Modules Needed by iptables

• Sample iptables Scripts

• Troubleshooting iptables

• Conclusion

Network security is a primary consideration in any decision to host a Web site as the threats are becoming more widespread and persistent every day. One means of providing additional protection is to invest in a firewall. Though prices are always falling, in some cases you may be ...