LINUX VIDEO TUTORIALS :

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MD5SUM - Disc 1: 36265a537171e5d19331a10951b3d7ca
MD5SUM - Disc 2 : d8b741e57f2fe5a09eeb89b30584c0d4
MD5SUM - Disc 3 : 65065ac30215d0420b4188b20f01be13
Content Size: 5.3GB
Demos: here
Certificate of Completion: YES
LinuxCBT Security Edition encompasses 9 pivotal security modules:
1. Security Basics (fundamentals)
2. Proxy Security featuring Squid
3. Firewall Security featuring IPTables
4. SELinux Security - MAC-based Security Controls
5. Network Intrusion Detection System (NIDS) Security featuring Snort® NIDS
6. Packet | Capture | Analysis Security featuring Ethereal®
7. Pluggable Authentication Modules (PAM) Security
8. Open Secure Shell version 2 (OpenSSHv2) Security
9. OpenPGP with Gnu Privacy Guard (GPG) Security
LinuxCBT Security Edition is unparalleled in content, depth and expertise. It entails 89-hours, or ~ 2-weeks of classroom training. LinuxCBT Security Edition prepares you or your organization for successfully securing GNU/Linux & Open Source-based solutions. As a by-product, many of the covered concepts, utilities and tricks are applicable to heterogeneous computing environments, ensuring your coverage of the fundamentals of securing corporate infrastructures.
Recommended Prerequisites for:
* Any LinuxCBT Operating System Course (Classic/EL-4/SUSE/Debian Editions)
o Open mind & determination to master Linux and related open-source applications
o Basic understanding of networking concepts
o Access to a PC to follow the exercises
Basic Security - Module 1
* Boot Security
o Explore Dell PowerEdge BIOS Security-related features
o Discuss concepts & improve Dell PowerEdge BIOS security
o Explain run-time boot loader vulnerabilities
o Explore single-user mode (rootshell) and its inherent problems
o Modify default GRUB startup options & examine results
o Secure boot loader using MD5 hash
o Identify key startup-related configuration files & define boot security measures
o Identify key boot-related utilities
o Confirm expected hardware configuration
o Discuss INIT process, runlevel configuration & concepts
o Explore & tighten the security of the INIT configuration
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* Shell Security
o Confirm expected applications
o Discuss Teletype Terminals (TTYs) and Pseudo Terminals (PTS)
o Identify common TTYs and PTSs
o Track current TTYs and PTSs - character devices
o Discuss concepts related to privileged and non-privileged use
o Restrict privileged login
o Use SSH and discuss TTYs
o Discuss the importance of consistent system-wide banners & messages
o Define and configure system banners for pre and post-system-access
o Identify user-logon history and correlate to TTYs
o Identify current user-connections - console-based and network-based
o Use lsof to identify open files and sockets
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* Syslog Security
o Discuss Syslog concepts and applications
o Explain Syslog semantics - facilities & levels - message handling & routing
o Focus on security-related Syslog facilities
o Examine security logs managed by Syslog
o Configure Network Time Protocol (NTP) on interesting hosts
o Secure NTP configuration
o Ensure time consistency to preserve log-integrity
o Configure Syslog replication to preserve log-integrity
o Identify log discrepancies between Syslog hosts
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* Reconnaissance & Vulnerability Assessment Tools
o Discuss Stage-1 host/network attack concepts
o Upgrade NMAP reconnaissance tool to increase effectiveness
o Identify NMAP files
o Discuss TCP handshake procedure
o Discuss half-open/SYN connections
o Perform connect and SYN-based host/network reconnaissance
o Identify potential vulnerabilities on interesting hosts derived from reconnaissance
o Examine NMAP logging capabilities
o Perform port sweeps to identify common vulnerabilities across exposed systems
o Secure exposed daemons/services
o Perform follow-up audit to ensure security policy compliance
o Discuss vulnerability scanner capabilities and applications
o Prepare system for Nessus vulnerability scanner installation - identify/install dependencies
o Generate self-signed SSL/TLS certificates for secure client/server communications
o Activate Nessus subscription, server and client components
o Explore vulnerability scanner interface and features
o Perform network-based reconnaissance attack to determine vulnerabilities
o Examine results of the reconnaissance attack and archive results
o Secure exposed vulnerabilities
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* XINETD - TCPWrappers - Chattr - Lsattr - TCPDump - Clear Text Daemons
o Install Telnet Daemon
o Install Very Secure FTP Daemon (VSFTPD)
o Explore XINETD configuration and explain directives
o Configure XINETD to restrict communications at layer-3 and layer-4
o Restrict access to XINETD-protected daemons/services based on time range
* Secure Shell (SSH) & MD5SUM Applications
o Use Ethereal to examine SSH streams
o Generate RSA/DSA PKI usage keys
o Configure Public Key Infrastructure (PKI) based authentication
o Secure PKI authentication files
o Use SCP to transfer files securely in non-interactive mode
o Use SFTP to transfer files securely in interactive mode
o Configure SSH to support a pseudo-VPN using SSH-Tunnelling
o Discuss MD5SUM concepts and applications
o Compare & contrast modified files using MD5SUM
o Use MD5SUM to verify the integrity of downloaded files
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* GNU Privacy Guard (GPG) - Pretty Good Privacy (PGP) Compatible - PKI
o Discuss GPG concepts & applications - symmetric/asymmetric encryption
o Generate asymmetric RSA/DSA GPG/PGP usage keys - for multiple users
o Create a local web of trust
o Perform encrypts/decrypts and test data-exchanges
o Sign encrypted content and verify signatures @ recipient
o Import & export public keys for usage
o Use GPG/PGP with Mutt Mail User Agent (MUA)
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* AIDE File Integrity Implementation
o Discuss file-integrity checker concepts & applications
o Identify online repository & download AIDE
o Install AIDE on interesting hosts
o Configure AIDE to protect key files & directories
o Alter file system objects and confirm modifications using AIDE
o Audit the file system using AIDE
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* Rootkits
o Discuss rootkits concepts & applications
o Describe privilege elevation techniques
o Obtain & install T0rnkit - rootkit
o Identify system changes due to the rootkit
o Implement T0rnkit with AIDE to identify compromised system objects
o Implement T0rnkit with chkrootkit to identify rootkits
o T0rnkit - rootkit - cleanup
o Implement N-DU rootkit
o Evaluate system changes
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* Bastille Linux - OS-Hardening
o Discuss Bastille Linux system hardening capabilities
o Obtain Bastille Linux & perform a system assessment
o Install Bastille Linux
o Evaluate hardened system components
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Proxy Security - Module 2
* Squid Proxy Initialization
o Discuss Squid concepts & applications
o Discuss DNS application
o Configure DNS on primary SuSE Linux server for the Squid Proxy environment
o Confirm DNS environment
o Start Squid and evaluate default configuration
o Install Squid Proxy server
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* General Proxy Usage
o Configure web browser to utilize proxy services
o Grant permissions to permit local hosts to utilize proxy services
clients
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* Squid Proxy Logs
o Discuss Squid Proxy logging mechanism
o Identify key log files
o Discuss & explore the Access log to identify HITS and/or MISSES
o Discuss & explore the Store log to identify cached content
o Convert Squid logs to the Common Log Format (CLF) for easy processing
o Discuss key CLF fields
o Configure Webalizer to process Squid-CLF logs
o Revert to Squid Native logs
o Discuss key Native log fields
o Configure Webalizer to process Squid Native logs
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* Squid Network Configuration & System Stats
o Discuss cachemgr.cgi Common Gateway Interface(CGI) script
o Explore the available metrics provided by cachemgr.cgi
o Change default Squid Proxy port
o Modify text/graphical clients and test communications
o Discuss Safe Ports - usage & applications
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* Squid Access Control Lists (ACLs)
o Intro to Access Control Lists (ACLs) - syntax
o Define & test multiple HTTP-based ACLs
o Define & test ACL lists - to support multiple hosts/subnets
o Define & test time-based ACLs
o Nest ACLs to tighten security
o Implement destination domain based ACLs
o Exempt destination domains from being cached to ensure content freshness
o Define & test Anded ACLs
o Discuss the benefits of Regular Expressions (Regexes)
o Implement Regular Expressions ACLs to match URL patterns
o Exempt hosts/subnets from being cached or using the Squid cache
o Force cache usage
o Configure enterprise-class Cisco PIX firewall to deny outbound traffic
o Configure DNS round-robin with multiple Squid Proxy caches for load-balancing
o Discuss delay pool concepts & applications - bandwidth management
o Configure delay pools - to support rate-limiting
o Examine results of various delay pool classes
o Enforce maximum connections to deter Denial of Service (DoS) attacks
o Verify maximum connections comply with security policy
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* Squid Proxy Hierarchies
o Discuss Squid cache hierarchy concepts & applications
o Ensure communications through a primary cache server - double-auditing
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Firewall Security - Module 3
* Intro IPTables
o Discuss key IPTables concepts
o OSI Model discussion
o Determine if IPTables support is available in the current kernel
o Identify key IPTables modules and supporting files
o Explore and examine the default tables
o Learn IPTables Access Control List (ACL) syntax
o Discuss ACL management
o Learn to Save & Restore IPTables ACLs
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* IPTables - Chain Management
o Explore the various chains in the default tables
o Discuss the purpose of each chain
o Examine packet counts & bytes traversing the various chains
o Focus on appending and inserting new ACLs into pre-defined chains
o Write rules to permit common traffic flows
o Delete & Replace ACLs to alter security policy
o Flush ACLs - reset the security policy to defaults
o Zero packet counts & bytes - bandwidth usage monitoring
o Create user-defined chains to perform additional packet handling
o Rename chains to suit the security policy/nomenclature
o Discuss & explore chain policy
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* IPTables - Packet Matching & Handling
o Explain the the basics of packet matching
o Identify key layer-3/4 match objects - (Source/Dest IPs, Source/Dest Ports, etc.)
o Explore the multi-homed configuration
o Discuss layer-3/4 IPTables default packet matching
o Discuss default layer-2 behavior
o Increase security by writing rules to match packets based on layer-2 addresses
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* IPTables - State Maintenance - Stateful Firewall
o Discuss the capabilities of traditional packet-filtering firewalls
o Explain the advantages of stateful firewalls
o Examine the supported connection states
o Identify key kernel modules to support the stateful firewall
o Implement stateful ACLs & examine traffic flows
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* IPTables - Targets - Match Handling
o Discuss the purpose of IPTables targets for packet handling
o Write rules with the ACCEPT target
o Write rules with the DROP target
o Write rules with the REJECT target
o Write rules with the REDIRECT target
o Confirm expected behavior for all targets
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* IPTables - Logging
o Explore Syslog kernel logging configuration
o Define Access Control Entry (ACEs) to perform logging
o Explain the key fields captured by IPTables
o Log using user-defined chain for enhanced packet handling
o Log traffic based on security policy
o Define a catch-all ACE
o Use ACE negation to control logged packets
o Label log entries for enhanced parsing
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* IPTables - Packet Routing
o Describe subnet layout
o Focus on the forward chain
o Write ACEs to permit routing
o Test connectivity
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* IPTables - Network Address Translation (NAT)
o Discuss NAT features & concepts
o Discuss & implement IP masquerading
o Define Source NAT (SNAT) ACEs & test translations
o Create SNAT multiples
o Implement Destination NAT (DNAT) ACEs & test translations
o Define DNAT multiples
o Create NETMAP subnet mappings - one-to-one NATs
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* IPTables - Demilitarized Zone (DMZ) Configuration
o Describe DMZ configuration
o Write Port Address Translation (PAT) rules to permit inbound traffic
o Test connectivity from connected subnets
o Configure DMZ forwarding (Routing)
o Implement Dual-DMZs - ideal for n-tiered web applications
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SELinux Security - Module 4
* Access Control Models
o Describe Access Control Model (ACM) theories (DAC/MAC/nDAC)
o Explain features & shortcomings of Discretionary Access Control (DAC) models
o Identify key DAC-based utilities
o Discuss the advantages & caveats of Mandatory Access Control (MAC)models
o Explore DAC-based programs
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* SELinux - Basics
o Discuss subjects & objects
o Explain how SELinux is implemented in 2.6.x-based kernels
o Confirm SELinux support in the kernel
o Identify key SELinux packages
o Use sestatus to obtain the current SELinux mode
o Discuss subject & object labeling
o Describe the 3 SELinux operating modes
o Identify key utilities & files, which dictate the current SELinux operating mode
o Focus on the features of SELinux permissive mode
o Explore the boot process as it relates to SELinux
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* SELinux - Object Labeling
o Discuss subject & object labeling
o Discuss the role of extended attributes (XATTRs)
o Expose the labels of specific objects
o Alter the lables of specific objects
o Configure SELinux to automatically label objects per security policy
o Reset the system and confirm labels on altered objects
o Explain security tuples
o Use fixfiles to restore object labels on running system per security policy
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* SELinux - Type Contexts - Security Labels Applied to Objects
o Intro to object security tuples - security labels
o Attempt to serve HTML content using Apache in SELinux enforcing mode
o Identify problematic object security labels
o Serve HTML content in SELinux permissive mode
o Use chcon to alter object security labels
o Switch to enforcing mode & confirm the ability to serve HTML content
o Use restorecon to restore object security context (labels)
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* SELinux - Basic Commands - Type & Domain Exposition
o ps - reveal subjects’ security context (security label) - Domains
o ls - reveal objects’ security label - Types
o cp - preserve/inherit security labels
o mv - preserve security labels
o id - expose subject security label
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* SELinux - Targeted Policy - Binary
o Explain the Targeted Policy’s features
o Discuss policy transitions for domains
o Compare & contrast confined & unconfined states
o Exempt Apache daemon from the auspicies of the targeted policy’s confined state
o Evaluate results after exemption
o Explain the security contexts applied to subjects & objects
o Peruse key targeted binary policy files
o Identify the daemons protected by the targeted policy
o Discuss the unconfined_t domain - subject label
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* SELinux - Targeted Policy - Source
o Install the targeted policy source files
o Identify & discuss TE and FC files
o Explore file_contexts - context definition for objects
o Discuss the file context syntax
o Explain the purpose of using run_init to initiate SELinux-protected daemons
o Switch between permissive & enforcing modes and evaluate behavior
o Peruse the key files in the targeted source policy
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* SELinux - Miscellaneous Utilities - Logging
o Use tar to archive SELinux-protected objects
o Confirm security labels on tar-archived objects
o Use the tar substitute ’star’ to archive extended attributes(XATTRs)
o Confirm security labels on star-archived objects
o Discuss the role of the AVC
o Examine SELinux logs - /var/log/messages
o Alter Syslog configuration to route SELinux messages to an ideal location
o Use SETools, shell-based programs to output real-time statistics
o Install & use SEAudit graphical SELinux log-management tool
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Network Intrusion Detection System (NIDS) Security - Module 5
* Snort NIDS - Installation
o Peruse the LinuxCBT Security Edition classroom network topology
o Download Snort
o Import G/PGP public key and verify package integrity
o Identify & download key Snort dependencies
o Install current libpcap - Packet Capture Library
o Establish security configuration baseline
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* Snort NIDS - Sniffer Mode
o Discuss sniffer mode concepts & applications
o Sniff IP packet headers - layer-3/4
o Sniff data-link headers - layer-2
o Sniff application payload - layer-7
o Sniff application/ip packet headers/data-link headers - all layers except physical
o Examine packets & packet loss
o Sniff traffic traversing interesting interfaces
o Sniff clear-text traffic
o Sniff encrypted streams
*
o Log to the active pseudo-terminal console and examine the packet flows
o Combine BPF qualifiers to increase packet-matching capabilities
o Use logical operators to define more flexible BPFs
o Read binary TCPDump files using Snort & BPFs
o Execute Snort NIDS in logging/daemon mode
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* Snort NIDS - Cisco Switch Configuration
o Examine the current network configuration
o Identify Snort NIDS sensors and centralized DBMS Server
o Create multiple VLANs on the Cisco Switch
o Secure the Cisco Switch configuration
o Isolate internal and external hosts, sensors and DBMS systems
o Configure SPAN - Port Mirroring for internal and external Snort NIDS Sensors
o Examine internal and external packet flows
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* Snort NIDS - Network Intrusion Detection System (NIDS) Mode
o Discuss NIDS concepts & applications
o Prepare /etc/snort - configuration directory for NIDS operation
o Explore the snort.conf NIDS configuration file
o Discuss all snort.conf sections
o Download & install community rules
o Execute Snort in NIDS mode with TCPDump compliant output plugin
o Download & install Snort Vulnerability Research Team (VRT) rules
o Compare & contrast community rules to VRT rules
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* Snort NIDS - Output Plugin - Barnyard Configuration
o Discuss features & benefits
o Configure Syslog based logging and examine results
o Configure Snort to log sequentially to multiple output locations
o Implement unified binary output logging to enhance performance
o Discuss concepts & features associated with post-processing Snort logs
o Download and install current barnyard post-processor
o Use barnyard to post-process logs to multiple output destinations
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* Snort NIDS - BASE - MySQL® Implementation
o Discuss benefits of centralized console reporting for 1 or more Snort sensors
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* Snort® NIDS - Rules Configuration & Updates
o Discuss the concept of rules as related to Snort NIDS
o Examine Snort rule syntax
o Peruse pre-defined Snort rules
o Download & configure oinkmaster to automatically update Snort rules
o Confirm oinkmaster operation
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Packet Capture Analysis Security feat. Ethereal® - Module 6
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* Ethereal® Graphical User Interface (GUI)
o Identify installation footprint
o Differentiate between promiscuous and non-promiscuous modes
o Configure X.org to permit non-privileged user to write output to screen
o Launch Ethereal GUI
o Identify the primary GUI components /Packet List | Packet Details | Packet Bytes/
o Discuss defaults
o Explore key menu items
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* TCPDump | WinDump - Packet Capturing for /Linux|Unix|Windows/
o Discuss defaults, features and applications
o Use TCPDump on Linux to capture packets
o Log traffic using default PCAP/TCPDump format
o Discuss Berkeley Packet Filters (BPFs)
o Capture and log specific packets using BPFs for analysis with Ethereal
o Connect to Windows 2003 Server using Remote Desktop (RDesktop) utility
o Install WinDump and WinPCAP on Windows 2003 Server
o Identify available network interfaces using WinDump
o Capture and log packets using WinDump
o Capture and log specific packets using BPFs with WinDump for analysis with Ethereal
o Upload captures to Linux system for analysis in Ethereal
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* Snort® NIDS Packet Capturing & Logging
o Discuss Snort NIDS’s features
o Confirm prerequisites - /PCRE|LibPCAP|GCC|Make/
o Download and Import Snort G/PGP key and MD5SUM for Snort NIDS
o Combine BPF qualifiers to increase packet-matching capabilities
o Use logical operators to define more flexible BPFs
o Create captures for further analysis with Ethereal
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* Sun Snoop Packet Capturing & Logging
o Connect to Solaris 10 system and prepare to use Snoop
o Draw parallels to TCPDump
o Enumerate key features
o Sniff and log generic traffic
o Sniff and log specific traffic using filters
o Sniff using Snoop, HTTP and FTP traffic
o Save filters for analysis by Ethereal
o Snoop various Solaris interfaces for interesting traffic
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* Layer-2 & Internet Control Messaging Protocol (ICMP) Captures
o Launch Ethereal
o Identify sniffing interfaces
o Capture Address Resolution Protocol (ARP) Packets using Capture Filters
o Discuss and Identify Protocol Data Units (PDUs)
o Identify default Ethereal capture file
o Peruse packet capture statistics
o Identify Cisco VOIP router generating ARP requests
o Peruse time precision features - deci - nano-seconds
o Discuss time manipulations - relative to first packet - actual time
o Reveal protocol information from layer-1 through 7
o Identify network broadcasts in the packet stream
o Generate Layer-2 ARP traffic using PING and capture and analyze results
o Sniff traffic based on MAC addresses using Ethereal and Capture FIlters
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* User Datagram Protocol (UDP) Captures & Analyses
o Discuss UDP Characteristics
o Focus on Network Time Protocol (NTP)
o Setup NTP strata for testing between multiple systems
o Analyze NTP - UDP traffic using Ethereal
o Focus on Domain Name Service (DNS)
o Install a BIND DNS Caching-Only Server
o Analyze DIG queries
o Analyze ‘nslookup’ queries
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* Transmission Control Protocol (TCP) Captures & Analyses
o Discuss TCP Characteristics - Connection-Oriented Services
o Explain TCP connection rules - Socket creation
o Sniff TCP traffic using Capture Filters in Ethereal
o Use Display Filters to parse TCP traffic
o Sniff FTP traffic
o Reconstruct FTP flows using TCP Stream Reassembly
o Differentiate between client and server flows
o Quantify client and server flows
o Discuss embedded Protocol Data Units (PDUs)
o Sniff Internet Protocol Version 6 (IPv6) traffic
o Peruse and discuss the IPv6:TCP:FTP traffic dump
o Analyze TCP Sockets
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* Ethereal Display Filters - Post Processing Filters
o Identify previously captured - TCPDump - Ethereal - Snort - Snoop - Dumps
o Discuss features
o Explain Display Filter syntax
o Post-process previously captured traffic dumps
o Identify the various methods to exact display filters
o Filter data using the expression builder
o Filter traffic based on interesting properties
o Filter traffic using logical operators
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* Ethereal Statistics
o Discuss features
o Explore the summary (metadata) of captured packets
o Peruse the protocol hierarchy - Layer’s 1 - 7 of OSI
o Examine network conversations of captured packets
o Identify Destinations in packet dumps
o Examine ICMP statistics
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* Text-based Captures with Tethereal
o Discuss features and applications
o Identify ‘tethereal’ and invoke
o Enumerate network interfaces
o Sniff generic network traffic
o Suppress capture output
o Apply Capture Filters
o Capture UDP Traffic
o Capture TCP Traffic
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* Intranet-based Captures & Analysis
o Discuss Intranet monitoring objectives
o Analyze the network topology drawing
o Discuss Unicast, Broadcast and Multicast traffic
o Discuss Switch Port Mirroring - SPAN
o Configure Port Mirroring - SPAN on Cisco Switch for interesting ports
o Dedicate a network interface for sniffing traffic
o Configure Snort NIDS to sniff traffic on dedicated network interface
o Analyze Snort NIDS captures in Ethereal
o Sniff traffic between various Intranet hosts
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* Internet-based Captures & Analysis
o Discuss Internet monitoring objectives
o Identify key external interfaces to monitor
o Update the Port Mirroring configuration to capture Internet traffic
o Capture external traffic
o Analyze using Ethereal
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* Wireless-based Captures & Analysis
o Discuss Wireless monitoring objectives
o Connect to remote system with wireless interface
o Enable wireless interface
o Sniff traffic on wireless network
o Analyze using Ethereal
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* Windows-based Captures & Analysis on Windows
o Download and Install Ethereal for Windows
o Explore interface
o Load previously captured data
o Analyze data
o Compare and contrast with Ethereal for Linux|Unix systems
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Pluggable Authentication Modules (PAM) Security - Module 7
* Introduction - Topology - Features
o Discuss course outline
o Explore system configuration
o Explore network topology
o Identify primary PAM systems
o Enumerate and discuss key PAM features
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* PAM Rules Files & Syntax
o Identify key PAM configuration files
o Explain the purpose of the /etc/pam.d/other PAM rules file
o Discuss PAM’s 4 management tasks
o Identify the 4 tokens supported within PAM rules files
o Explain possible values for the 4 supported rules file tokens
o Discuss PAM’s stacking of rules for the 4 management tasks
o Examine the /etc/pam.d/sshd PAM rules file for the SSHD service/daemon
o Explore the contents of included PAM rules files
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* Common PAMs - Identify & Discuss Commonly Implemented PAMs
o Explain the purpose and implementation of pam_echo
o Test pam_echo using SSH
o Explain the purpose and implementation of pam_warn
o Explain the purpose and implementation of pam_deny
o Identify instances of pam_warn and pam_deny modules
o Explain the purpose and implementation of pam_unix2
o Identify instances of pam_unix2 module
o Explain the purpose and implementation of pam_env
o Explain the purpose and implementation of pam_ftp
o Peruse /etc/pam.d/vsftpd and discuss the implemenation of pam_ftp
o Explain the purpose and implementation of pam_lastlog
o Explain the purpose and implementation of pam_limits
o Explain the purpose and implementation of pam_listfile
o Explain the purpose and implementation of pam_nologin
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* Account Policies with PAM
o Explain authentication flow when using PAM
o Discuss account policies features
o Identify and peruse the default account policies file: /etc/login.defs
o Discus PAM’s usage of /etc/login.defs as it pertains to system security
o Discuss pam_pwcheck is maintaining system policy
o Configure pam_pwcheck to support minimum password length
o Correlate pam_pwcheck system policy to user accounts database
o Configure pam_pwcheck to support password history
o Use chage to enumerate and change user accounts’ attributes associated with system policy
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* PAM Tally
o Explain applications of pam_tally
o Identify failed logins log file: /var/log/faillog
o Identify PAM authentication messages in /var/log/messages
o Compare and contrast pam_tally with faillog
o Use pam_tally to display user’s tally
o Enable pam_tally system-wide with desired policy
o Fail to login multiple times, exceeding the system policy and evaluate results
o Reset user’s login count using pam_tally and faillog
o Redirect PAM log messages using Syslog-NG
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* PAM Password Quality Check (pam_passwdqc)
o Identify pam_passwdqc using RPM
o Discuss features
o Enumerate the supported password character classes - Complex passwords
o Replace pam_pwcheck with pam_passwdqc using at least 2 character classes
o Test password policy in non-enforcing mode
o Evaluate the effects
o Enable password policy in enforcing mode and evaluate
o Alter character class and length (complexity) requirements and evaluate
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* PAM Time - Time-based Access Control
o Discuss features
o Explain configuration file syntax
o Impose restrictions on common services
o Evaluate results
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* PAM Nologin
o Discuss features
o Explain configuration file syntax
o Implement nologin module via /etc/nologin
o Evaluate results
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* PAM Limits - System Resource Limits Controlled by PAM
o Discuss features
o Explain configuration file syntax
o Impose restrictions on system resources
o Evaluate results
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* PAM Authentication with Apache
o Discuss features and desired result
o Install Apache and development modules providing apxs support
o Download PAM Apache module
o Compile and install PAM Apache module
o Configure Apache web site to support PAM
o Evaluate results
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Open Secure Shell version 2 (OpenSSHv2) Security - Module 8
* Introduction - Topology - Features
o Discuss course outline
o Explore system configuration
o Identify key systems to be used
o Explore network topology
o Enumerate and discuss key OpenSSHv2 features
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* Identify Key OpenSSHv2 Components
o Identify installed OpenSSHv2 related packages
o Peruse related startup and run-control script files
o Locate ’sshd’ on the file system
o Discuss related client | server configuration files
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* OpenSSHv2 Client - /ssh/
o Discuss features and benefits
o Obtain shell access on a remote system
o Configure /etc/hosts to provide local name resolution for OpenSSHv2
o Identify and discuss pseudo-terminals - pty
o Redirect X11/X.org traffic to localhost via SSH
o Bind ’ssh’ to specific source IP address and test connectivity
o Execute commands on remote system without allocating a pseudo-terminal
o Debug ’ssh’ connectivity
o Explore the system-wide client configuration file
o Explore user configuration file
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* Secure Copy Program (SCP) - /scp/
o Discuss features and benefits
o Locate ’scp’ on the file system
o Discuss usage
o Copy, non-interactively, previously generated data to remote systems
o Test ’scp’ with global and user configuration directives
o Debug ’scp’ connectivity
o Limit transfer rate to conserve bandwidth
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* Secure File Transfer Program (SFTP) - /sftp/
o Discuss features and benefits
o Locate ’sftp’ on the file system
o Discuss usage
o Connect to remote system using ’sftp’ interactive shell
o Issue puts and gets and evaluate results
o Identify the sftp-server subsystem
o Peruse process list while connected to OpenSSHv2 server
o Illustrate batch file usage
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* SSH Key Scan Utility - /ssh-keyscan/
o Discuss features and benefits
o Locate ’ssh-keyscan’ on the file system
o Discuss usage
o Scan the network from STDIN for OpenSSHv2 public keys - RSA (SSHv1 & SSHv2) | DSA
o Scan the network based on a file with a list of hosts for OpenSSHv2 public keys
o Populate ~/.ssh/known_hosts file using ’ssh-keyscan’ with BASH for loop
o Compare and contrast STDOUT with the output file
*
* SSH Key Generation Utility - /ssh-******/
o Discuss features and benefits
o Locate ’ssh-******’ on the file system
o Discuss usage
o Generate RSA-2 usage keys
o Identify RSA-2 public and private key pair
o Generate DSA usage keys
o Identify DSA public and private key pair
o Expose usage keys’ fingerprint using ’ssh-******’
o Generate RSA-2 | DSA usage keys for all hosts
*
* Public Key Infrastructure (PKI) - Password-less Logins
o Discuss features and benefits
o Identify key files for client and server implemenation of password-less (PKI-based) logins
o Copy manually, RSA-2 | DSA public keys to remote system’s ~/.ssh/authorized_keys file
o Test password-less logins
o Use ’ssh-copy-id’ to seamlessly populate remote system with RSA-2 | DSA usage keys
o Test password-less connectivity after using ’ssh-copy-id’
o Confirm password-less connectivity using SSH clients /ssh|scp|sftp/ in debug mode
o Connect to privileged account from non-privileged account using PKI
o Configure RSA-1 connectivity using PKI
*
* System-wide OpenSSHv2 Configuration Directives
o Identify key directory and files associated with client | server configuration
o Explore primary server configuration file
o Discuss applicability of directives
o Alter and test several SSHD directives
o Explore OpenSSHv2 configuration on RedHat Linux
o Explore OpenSSHv2 configuration on Solaris 10
*
* Port Forwarding - Pseudo-VPN Support - /Local|Remote|Gateway/
o Discuss features and benefits
o Implement local port forwarding using ’ssh’
o Configure remote port forwarding using ’ssh’
o Test circumvention of local firewall using remote port forwarding
o Implement gateway ports to share forwarded /local|remote/ with connected users
o Test connectivity
*
* Windows Integration - /PuTTY|WinSCP/
o Discuss features and applications
o Download and install PuTTY
o Explore PuTTY’s features
o Configure PKI logins
o Download and install WinSCP
o Explore WinSCP’s features
o Move data between Windows, Linux and Solaris
*
* Syslog | Syslog-NG Configuration
o Discuss features and benefits
o Identify default configuration
o Redirect OpenSSHv2 data using Syslog and Syslog-NG
o Examine results
o Enable debugging
*
* Host-based Authentication
o Discuss applicability and caveats
o Identify key configuration files and directives
o Implement host-based authentication
o Test results
*
* OpenSSHv2 Source Installation
o Discuss features and benefits
o Download current OpenSSHv2 source code
o Compile and install
o Restart services|daemons
o Test new version of OpenSSHv2
*
* Secure OpenSSHv2 Implementation
o Discuss features and benefits
o Identify key configuration file
o Enumerate and implement key directives
o Test configuration
*
* top
OpenSSHv2 Security - Module 9
* Introduction - Topology - Features
o Discuss course outline
o Explore system configuration
o Identify key systems to be used
o Explore network topology
o Enumerate and discuss key OpenPGP features
*
* Explore GPG Configuration
o Identify installed GPG packages in various Linux distros
o Discuss the key contents of those packages
o Explore configuration hierarchy
o Discuss security as it pertains to private key management
o Explain the purpose of public and private keys
o Discuss symmetric and asymmetric encryption provided by OpenPGP-compliant Apps
*
* Generate | Import | Export OpenPGP Usage Keys
o Discuss features and benefits
o Obtain shell access on remote systems
o Generate usage (private|public) keys
o Identify the generated keys
o Discuss how usage keys are used
o Generate usage keys on remote systems
o Export OpenPGP public key chain on various systems
o Import OpenPGP public keys on various systems
o Evaluate the results of exchanging public keys
*
* Digital Signatures
o Discuss features and benefits as they pertain to data integrity
o Identify default digital signatures on multiple hosts
o Explain the differences between signing and encrypting correspondence
o Sign and export data to remote systems - Inline
o Create detached OpenPGP signatures for data
o Confirm the signed data on the remote systems
o Recap non-repudiation benefits provided by digitally signing correspondence
*
* Encryption | Decryption | Sign & Encrypt Content
o Discuss features and benefits
o Generate files for usage
o Encrypt content using symmetric (shared-key) algorithm
o Decrypt content using the shared-key, based on the symmetric algorithm
o Evaluate results on multiple machines
o Explain caveats associated with symmetric encryption
o Encrypt content to a given recipient, using their public key - asymmetric encryption
o Decrypt content on various hosts
o Attempt to decrypt content without the corresponding private key
o Evaluate results
o Encrypt using ASCII-armoured and binary (OpenPGP-compliant) formats
o Decrypt both ASCII-armoured and binary formats
o Recap encryption decryption processes
o Discuss the requirements of signing and encrypting content
o Sign and encrypt content to various recipients
o Confirm signed and encrypted content
o Attempt to confirm and decrypt content as the unintended recipient
o Evaluate results
*
* OpenPGP Key Management | Web of Trust | Internet Key Distribution
o Discuss features and benefits
o Explore GPG key management facility
o Update properties of public/private key pairs
o Add sub-keys to public/private key pairs
o Sign remote users’ public keys
o Evaluate results
o Discuss the web of trust functionality
o Create a web of trust with various hosts
o Evaluate trust confirmation
o Discuss the features of OpenPGP Internet key distribution servers
o Generate and upload public keys to an Internet key server
o Download the uploaded public keys to the public keyrings of various hosts
o Evaluate results
*
* Perl Scripting with GPG
o Discuss features and benefits
o Create a Perl script to backup key directories and files
o Ensure that the script GPG-protects the content post-backup
o Include error-handling to ensure that each step of the script is routed appropriately
o Configure the script to transfer the encrypted content to a remote host ust ’scp’
o Evaluate results
*
* OpenPGP (GPG | PGP Desktop) on Win32
o Discuss features and benefits
o Download and install GPG for Win32
o Generate usage keys
o Exchange public keys with a user on a Linux system
o Sign and encrypt content to and from the Win32 user
o Confirm results
o Download and install GPG4WIN (GUI-based GPG for Win32)
o Explore features
o Sign and encrypt content to and from the Win32 user
o Confirm results
o Integrate GPG4WIN with MS Outlook
o Sign and encrypt e-mail messages
o Confirm and decrypt e-mail messages
o Install PGP Desktop for Win32
o Explore features and interface
o Generate usage keys
o Exchange public keys with Linux user
o Sign and encrypt content to and from the Win32 user using PGP Desktop
o Evaluate results
o Draw parallels between Win32 based OpenPGP tools and GPG for Linux | Unix
o Recap OpenPGP functionality included in /GPG|GPG4WIN|PGP Desktop/
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Saurav Banerjee