LINUXCBT FIREWALL EDITION BOOKWARE ISO-LZ0
LINUXCBT FIREWALL EDITION BOOKWARE ISO-LZ0 | 666MB
Genre: eLearning | Language: English

IPTables Firewall Implementation.




Firewall Security - Module III

Intro IPTables
        Discuss key IPTables concepts
        OSI Model discussion
        Determine if IPTables support is available in the current kernel
        Identify key IPTables modules and supporting files
        Explore and examine the default tables
        Learn IPTables Access Control List (ACL) syntax
        Discuss ACL management
        Learn to Save & Restore IPTables ACLs
    
IPTables - Chain Management
        Explore the various chains in the default tables
        Discuss the purpose of each chain
        Examine packet counts & bytes traversing the various chains
        Focus on appending and inserting new ACLs into pre-defined chains
        Write rules to permit common traffic flows
        Delete & Replace ACLs to alter security policy
        Flush ACLs - reset the security policy to defaults
        Zero packet counts & bytes - bandwidth usage monitoring
        Create user-defined chains to perform additional packet handling
        Rename chains to suit the security policy/nomenclature
        Discuss & explore chain policy
    
IPTables - Packet Matching & Handling
        Explain the the basics of packet matching
        Identify key layer-3/4 match objects - (Source/Dest IPs, Source/Dest Ports, etc.)
        Explore the multi-homed configuration
        Block traffic based on untrusted (Internet-facing) interface
        Perform packet matching/handling based on common TCP streams
        Perform packet matching/handling based on common UDP datagrams
        Perform packet matching/handling based on common ICMP traffic
        Write fewer rules (ACLs) by specifying lists of interesting layer-4 ports
        Discuss layer-3/4 IPTables default packet matching
        Discuss default layer-2 behavior
        Increase security by writing rules to match packets based on layer-2 addresses
    
IPTables - State Maintenance - Stateful Firewall
        Discuss the capabilities of traditional packet-filtering firewalls
        Explain the advantages of stateful firewalls
        Examine the supported connection states
        Identify key kernel modules to support the stateful firewall
        Implement stateful ACLs & examine traffic flows
    
IPTables - Targets - Match Handling
        Discuss the purpose of IPTables targets for packet handling
        Write rules with the ACCEPT target
        Write rules with the DROP target
        Write rules with the REJECT target
        Write rules with the REDIRECT target
        Confirm expected behavior for all targets
    
IPTables - Logging
        Explore Syslog kernel logging configuration
        Define Access Control Entry (ACEs) to perform logging
        Explain the key fields captured by IPTables
        Log using user-defined chain for enhanced packet handling
        Log traffic based on security policy
        Define a catch-all ACE
        Use ACE negation to control logged packets
        Label log entries for enhanced parsing
    
IPTables - Packet Routing
        Describe subnet layout
        Enable IP routing in the kernel - committ changes to disk
        Update routing tables on the other Linux Hosts on the network
        Update the Cisco PIX Firewall's routing tables
        Test routing through the Linux router, from a remote Windows 2003 Host
        Focus on the forward chain
        Write ACEs to permit routing
        Test connectivity
    
IPTables - Network Address Translation (NAT)
        Discuss NAT features & concepts
        Discuss & implement IP masquerading
        Define Source NAT (SNAT) ACEs & test translations
        Create SNAT multiples
        Implement Destination NAT (DNAT) ACEs & test translations
        Define DNAT multiples
        Create NETMAP subnet mappings - one-to-one NATs
    
IPTables - Demilitarized Zone (DMZ) Configuration
        Describe DMZ configuration
        Write Port Address Translation (PAT) rules to permit inbound traffic
        Test connectivity from connected subnets
        Configure DMZ forwarding (Routing)
        Implement Dual-DMZs - ideal for n-tiered web applications
    
IPTables - IPv6
        Explore IPv6 configuration
        Peruse IPv6 IPTables management tools
        Log and Filter ICMPv6 traffic
        Log and Filter TCPv6 traffic
        Log and Filter UDPv6 traffic
        Use 'nping' to generate IPv6 traffic for analysis
        Create IPv6 Sub-Chains to manage rules
        Evaluate results

I N S T A L L
1. Unpack
2. Mount/burn and install
3. Enjoy


LINUXCBT.FIREWALL.EDITION.BOOKWARE.ISO-LZ0


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