Saturday, August 28, 2010

FREENAS and iSCSI for Server 2008 Clustering

Great walk through http://www.trainsignaltraining.com/how-to-setup-iscsi-drive-using-freenas/2009-01-19/

PS. Once the drive shows up in computer management on Server 2008 - it may be offline (with some bogus error about security policy). Right click offline and click online. You will likely also need to right click again and initialize. Then you should be able to right click the drive and partition.

Great video on Server 2008 Quorum http://www.youtube.com/watch?v=j9E1LgLwG88

Saturday, August 14, 2010

CISSP - Operations Security

Scanning identifies open ports - fingerprinting identifies OS / Application - this can be active (creating the traffic) or passive (watching existing traffic)

War Chalking - used to indicate where wireless networks are

TCSEC Assurance Levels -

1. System Architecture
2. System Integrity
3. Covert Channel Analysis
4. Trusted Facility Management
5. Trusted Recovery

Common Criteria - Recovery

1. Manual Recovery
2. Automated Recovery
3. Automated Recovery without Undue Loss

Componenets
1. failure preparation(backups), system recovery

CISSP - Information Security and Risk Management

RFC 2196 - Site Security Handbook

Formulai

Total Risk = Threat * Vulnerability * Asset Value

Annual Loss Expectancy = Single Loss Expectancy * Annualized Rate of Occurence

Residual Risk = Annual Loss Expectancy * Control Gap

Single Loss Expectancy = Asset Value * Exposure Factor

Risk Analysis

FRAP - Facilitated Risk Analysis Process - team gets together to brainstorm through. 26 commong controls.

Delphi - answers are in written form - good for getting some quiet opinions - not good for discussion

Risk Assessment Steps
1. Reduce, Transfer, or avoid risk
2. Derive annual loss potential
3. Perform a threat analysis
4. Estimate potential loss
5. assign value to assets

Labeling

Government = Unclassified -> Top Secret

Commercial = Public -> Confidential

Roles

Information Security Officer - Functional Role of Security

Auditors -> provide reports on effectiveness to senior management

Senior Management - ultimately responsible for security

CISSP - Application Security

Waterfall Model - discrete sequential steps

SDLC Phases
1. Project Initiation and Planning
2. Functional Requirements Definition
3. System Design Specifications
4. Development and Implementation
5. Documentation and Common Program Controls
6. Testing and Evaluation Control, Certification, and Accredidation
7. Transition to Production (Implementation)
8. Operations and Maintenance Support
9. Revisions and System Replacement

Data Dictionary - database of schemas

Mobile Code - code that can be executed in network browsers (ie, firefox)

Software Capability Maturity Model

1. Initiating
2. Repeatable (Project Management has been documented)
3. Defined (quantitative process improvement)
4. Managed
5. Optimizing

replaced in 2007 by CMMI = CMM + Integration

now has 22 process areas

Distributed System Requirements

1. interoperability
2. portability
3. transparency
4. extensibility
5. security

spoofing is changing the ip address, masquerading is changing the email from or caller id

perturbation - is injecting noise (meaningless data) to prevent inferrence.

SODA - Secure Object-Oriented Database Access - uses polyinstantiation to remedy the multiparty update conflict

Change Control Process

1. formal request
2. analyze
3. record
4. approve
5. develop (ie. scripts)
6. report to management

Thursday, August 12, 2010

CISSP - Telecommunications and Network Security

WAN

ISDN BRI = 2 B and 1 D

Packet Switched = Frame Relay, X.25, ATM

Circuit Switched = DDS

Networking Models

OSI Model is an ISO Standard

TCP IP Model = Network Interface -> Inter networking -> Transport -> Application

SSL is between transport and session layers

802.15 = Wireless personal area - think bluetooth

IP

protocol field of packet -> 0x01 = ICMP, 0x06 = TCP, 0x11 = UDP, 0x58 = IGRP

determine Class
0xxxxxxx = <128 = A
10xxxxxx = <192 = B
110xxxxx = <224 = C
1110xxxx = <240 = D

private addresses
10.0.0.0/8
*127.0.0.0/8
169.254.0.0/16
172.16.0.0/12
192.168.0.0/16


RAID

0 = Striping
1 = Mirroring
2 = bit level striping w/ parity
3 = byte level striping w / parity
4 = block level striping w/ parity
5 = block level striping w / distributed parity
6 = block level striping w/ double distributed parity (requires 4 disks but can tolerate 2 down disks)

VPN

PPTP (PPP w/ MPPE, MS-CHAP, EAP-TLS), L2TP, IPSEC, L2F

Authentication

EAP, RADIUS, TACACS, PAP, CHAP

Wireless Security

WEP, WAP, WPA, TKIP

WAP 1 = no authentication, 2 = server authentication, 3 = server and client authentication

Attacks

Wormhole - a shortcut(wormhole) is created between 2 networks tricking routing protocols into using the wormhole. Then all traffic can be monitored or disrupted.

Firewalls

Dual-homed / bastion = think pc w/ 2 nics filtering traffic

Screened host = separation is logical instead of physical - in other words - only one nic. I picture this as a router only allowing 80 traffic to a proxy server, and the proxy server being the screened host firewall - though dependent on the router.

Screened subnet = 3 nics - think DMZ