06 Firewall Implementation Lab Manual

IT SecurityPreventative Detective ResponsiveCreating a Security PolicyGuidelinesThe implementation of any firewall technology should follow these basic rules:●The firewall should allow for filtering of communication protocols based oncomplex rule sets.●The firewall should provide extensive logging of traffic passed and blocked.●The firewall should be the only entry and exit point to the public Internet from theCompanyX LAN.●The firewall operating system should be sufficiently hardened to resist attack bothinternal and external.●The firewall should fail closed.●The firewall should not disclose the internal nature, names, or addressing of theCompanyX LAN.●The firewall should only provide firewall services. No other service orapplication should be running on the firewall.StandardsThe implementation of any firewall must follow these basic rules:●It is the policy that only the identified firewall administrator is allowed to makechanges to the configuration of the firewall.●It is the policy that all firewalls must follow the default rule:That whih is notexpressly permitted is denied.In addition, the following standards for perimeter networks are as follows:●The deployment of public services and resources shall be positioned behind thefirewall in a protected service net.●The firewall shall be configured to disallow traffic that originates in the servicenet to the general LAN.●Any application or network resource residing outside of the firewall andaccessible by unauthorized users requires a banner similar to the following:A T T E N T I O N! PLEASE READ CAREFULLY.This system is the property of CompanyX. It is for authorized use only. Users (authorized or unauthorized) have no explicit or implicit expectation of privacy.Any or all uses of this system and all files on this system will be intercepted, monitored, recorded, copied, audited, inspected, and disclosed to CompanyX management, andlaw enforcement personnel, as well as authorized officials of other agencies, both domestic and foreign. By using this system, the user consents to such interception, monitoring, recording, copying, auditing, inspection, and disclosure at the discretion of CompanyX. Unauthorized or improper use of this system may result in administrative disciplinary action and civil and criminal penalties. By continuing to use this system, you indicate your awareness of and consent to these terms and conditions of use.LOG OFF IMMEDIATELY if you do not agree to the conditions stated in this warning.ProceduresFirewall will be configured to allow traffic as defined below._ TCP/IP suite of protocols allowed through the firewall from the inside LAN to the public Internet is as follows:_ HTTP to anywhere_ HTTPS to anywhere_ TCP/IP suite of protocols allowed through the firewall from the insideLAN to the Service Net is as follows:_ HTTP to Web Server_ SMTP to Mail Server_ POP3 to Mail Server_ DNS to DNS server_ TCP/IP suite of protocols allowed through the firewall from the ServiceNet to the public Internet is as follows:_ DNS from DNS server to anywhere_ TCP/IP suite of protocols allowed through the firewall from the publicInternet to the LAN is as follows:_ None_ TCP/IP suite of protocols allowed through the firewall from the publicInternet with specific source, destination, and protocols is as follows:_ SMTP to Mail Server_ HTTP to Web Server_ FTP to Web Server创建安全策略名词解释：PolicyPolicy PackageRule创建新的Policy Package创建网络上第一个防火墙主机配置一般属性配置主机网络接口。

防火墙产品安全审查(中英文版)Title: Firewall Product Security Review中文标题：防火墙产品安全审查---English:The first step in the firewall product security review is to assess the overall security posture of the product.This involves evaluating the architecture, design, and implementation of the firewall to identify any potential vulnerabilities or weaknesses that could be exploited by an attacker.中文：防火墙产品安全审查的第一步是评估产品的整体安全姿态。

这包括评估防火墙的架构、设计和实现，以识别可能被攻击者利用的任何潜在漏洞或弱点。

---English:ext, it is important to review the security features and capabilities of the firewall.This includes examining the effectiveness of the firewall"s rule sets, logging capabilities, and intrusion detection and prevention systems.It is also important to ensure that the firewall is properly configured and updated with the latest security patches.中文：接下来，重要的是审查防火墙的安全特性和能力。

FortiGate/FortiWiFi® 60E SeriesFortiGate 60E, FortiWiFi 60E, FortiGate 61E and FortiWiFi 61EThe Fortinet Enterprise Firewall Solution delivers end-to-end network security with one platform, one network security operating system and unified policy management with a single pane of glass — for the industry’s best protection against the most advanced security threats and targeted attacks.Powered by SPU SoC3§Combines a RISC-based CPU with Fortinet’s proprietary SPU content and network processors for unmatched performance§Simplifies appliance design and enables breakthrough performance for smaller networks§Supports firewall acceleration across all packet sizes formaximum throughput§Delivers accelerated UTM content processing for superior performance and protection§Accelerates VPN performance for high speed, secureremote access3G/4G WAN ConnectivityThe FortiGate/FortiWiFi 60E Series includes a USB port that allows you to plug in a compatible third-party 3G/4G USB modem, providing additional WAN connectivity or a redundant link for maximum reliability.Compact and Reliable Form FactorDesigned for small environments, you can place it on a desktop or wall-mount it. It is small, lightweight yet highly reliable with superior MTBF (Mean Time Between Failure), minimizing the chance of a network disruption.Superior Wireless CoverageA built-in dual-band, dual-stream access point with internal antennas is integrated on the FortiWiFi 60E and provides speedy 802.11ac wireless access. The dual-band chipset addresses the PCI-DSS compliance requirement for rogue AP wireless scanning, providing maximum protection for regulated environments.Interfaces1. Console Port2. 2x GE RJ45 WAN PortsFortiGate/FortiWiFi 60E/61E3. 1x GE RJ45 DMZ Ports4. 7x GE RJ45 Internal Ports3SERVICESFortiGuard ™ Security ServicesFortiGuard Labs offers real-time intelligence on the threat landscape, delivering comprehensive security updates across the full range of Fortinet’s solutions. Comprised of security threat researchers, engineers, and forensic specialists, the team collaborates with the world’s leading threat monitoring organizations, other network and security vendors, as well as law enforcement agencies:§Real-time Updates — 24x7x365 Global Operations research security intelligence, distributed via Fortinet Distributed Network to all Fortinet platforms.§Security Research — FortiGuard Labs have discovered over 170 unique zero-day vulnerabilities to date, totaling millions of automated signature updates monthly.§Validated Security Intelligence — Based on FortiGuard intelligence, Fortinet’s network security platform is tested and validated by the world’s leading third-party testing labs and customers globally.FortiCare ™ Support ServicesOur FortiCare customer support team provides global technical support for all Fortinet products. With support staff in the Americas, Europe, Middle East and Asia, FortiCare offers services to meet the needs of enterprises of all sizes:§Enhanced Support — For customers who need support during local business hours only.§Comprehensive Support — For customers who need around-the-clock mission critical support, including advanced exchange hardware replacement.§Advanced Services — For global or regional customers who need an assigned Technical Account Manager, enhanced service level agreements, extended software support, priority escalation, on-site visits and more.§Professional Services — For customers with more complex security implementations that require architecture and design services, implementation and deployment services, operational services and more.For more information, please refer to the FortiOS data sheet available at FortiOSControl all the security and networking capabilities across the entire FortiGate platform with one intuitive operating system. Reduce operating expenses and save time with a truly consolidated next generation security platform.§ A truly consolidated platform with one OS for all security and networking services for all FortiGate platforms.§Industry-leading protection: NSS Labs Recommended, VB100, AV Comparatives and ICSA validated security and performance. §Control thousands of applications, block the latest exploits, and filter web traffic based on millions of real-time URL ratings. §Detect, contain and block advanced attacks automatically in minutes with integrated advanced threat protection framework. §Solve your networking needs with extensive routing, switching, WiFi, LAN and WAN capabilities.§Activate all the SPU-boosted capabilities you need on the fastest firewall platform available.Enterprise BundleFortiGuard Labs delivers a number of security intelligence services to augment the FortiGate firewall platform. You can easily optimize the protection capabilities of your FortiGate with the FortiGuard Enterprise Bundle. This bundle contains the full set of FortiGuard security services plus FortiCare service and support offering the most flexibility and broadest range of protection all in one package.GLOBAL HEADQUARTERS Fortinet Inc.899 KIFER ROAD Sunnyvale, CA 94086United StatesTel: +/salesEMEA SALES OFFICE 905 rue Albert Einstein 06560 Valbonne FranceTel: +33.4.8987.0500APAC SALES OFFICE 300 Beach Road 20-01The Concourse Singapore 199555Tel: +65.6395.2788LATIN AMERICA SALES OFFICE Sawgrass Lakes Center13450 W. Sunrise Blvd., Suite 430 Sunrise, FL 33323United StatesTel: +1.954.368.9990Copyright© 2017 Fortinet, Inc. All rights reserved. Fortinet®, FortiGate®, FortiCare® and FortiGuard®, and certain other marks are registered trademarks of Fortinet, Inc., in the U.S. and other jurisdictions, and other Fortinet names herein may also be registered and/or common law trademarks of Fortinet. All other product or company names may be trademarks of their respective owners. Performance and other metrics contained herein were attained in internal lab tests under ideal conditions, and actual performance and other results may vary. Network variables, different network environments and other conditions may affect performance results. Nothing herein represents any binding commitment by Fortinet, and Fortinet disclaims all warranties, whether express or implied, except to the extent Fortinet enters a binding written contract, signed by Fortinet’s General Counsel, with a purchaser that expressly warrants that the identified product will perform according to certain expressly-identified performance metrics and, in such event, only the specific performance metrics expressly identified in such binding written contract shall be binding on Fortinet. For absolute clarity, any such warranty will be limited to performance in the same ideal conditions as in Fortinet’s internal lab tests. In no event does Fortinet make any commitment related to future deliverables, features or development, and circumstances may change such that any forward-looking statements herein are not accurate. Fortinet disclaims in full any covenants, representations, and guarantees pursuant hereto, whether express or implied. Fortinet reserves the right to change, modify, transfer, or otherwise revise this publication without notice, and the most current version of the publication shall be applicable.FST -PROD-DS-GT60E FGFWF-60E-DAT -R6-201702FortiGate/FortiWiFi ® 60E SeriesORDER INFORMATIONProduct SKU DescriptionFortiGate 60E FG-60E 10x GE RJ45 ports (including 7x Internal ports, 2x WAN ports, 1x DMZ port). Maximum managed FortiAPs (Total / Tunnel) 10 / 5.FortiWiFi 60E FWF-60E 10x GE RJ45 ports (including 7x Internal ports, 2x WAN ports, 1x DMZ port), Wireless (802.11a/b/g/n/ac). Maximum managed FortiAPs (Total / Tunnel) 10 / 5.FortiGate 61E FG-61E 10x GE RJ45 ports (including 7x Internal ports, 2x WAN ports, 1x DMZ port), 128 GB SSD onboard storage. Maximum managed FortiAPs (Total / Tunnel) 10 / 5.FortiWiFi 61EFWF-61E10x GE RJ45 ports (including 7x Internal ports, 2x WAN ports, 1x DMZ port), Wireless (802.11a/b/g/n/ac), 128 GB SSD onboard storage. Maximum managed FortiAPs (Total / Tunnel) 10 / 5.。

CIW课程之用LINUX AS构建和安装一个独立的防火墙防火墙架设前的知识点补充防火墙支持状态过滤。

状态主要有以下四种：NEW说明这个包是我们看到的第一个包。

意思就是，这是conntrack(内核包跟踪)模块看到的某个连接第一个包，它即将被匹配了。

比如，我们看到一个SYN 包，是我们所留意的连接的第一个包，如UDP包，就要匹配它ArrayESTABLISHED在两个方向上的数据传输。

即只需要接到应答包即可，不管这个包是发往防火墙的，还是要由防火墙转发的。

ICMP的错误和重定向等信息包也被看作是ESTABLISHED，只要它们是我们所发出的信息的应答就认为是此状态。

RELATED是个比较麻烦的状态。

当一个连接和某个已处于ESTABLISHED状态的连接有关系时，就被认为是RELATED的了。

换句话说，一个连接要想是RELATED的，首先要有一个ESTABLISHED的连接。

这个ESTABLISHED连接再产生一个主连接之外的连接，这个新的连接就是 RELATED的了，当然前提是conntrack模块要能理解RELATED。

ftp是个很好的例子，FTP-data 连接就是和FTP-control有关的一个RELATEDINVALID说明数据包不能被识别属于哪个连接或没有任何状态。

有几个原因可以产生这种情况，比如，内存溢出，收到不知属于哪个连接的ICMP 错误信息。

一般地，我们DROP这个状态的任何东西。

本章所建立的防火墙是基于“禁止一切”的默认策略的。

按照默认的情况，所有的网络数据流都被禁止，服务作为策略的例外来单独启用。

对于单系统的家庭或是小型商业用户配置，假设大多用户都使用一个单独的计算机来连接Internet，或用单个防火墙来保护一个小型的专用的局域网。

之所以这样假设是因为这样的站点一般不会去花更多资金来扩展原有系统结构以构建更高级的防火墙。

“最小安全”并不是“不安全”，这种“最小保护”防火墙只是比拥有较多机器的更复杂的防火墙稍差一些。