firewalls proxy servers and routers

... b Expand Northwind Traders (Exchange), Administrative Groups and First Administrative Group c Expand Servers d Expand your_servername e Expand Protocols f Right-click IMAP4, point to New, and ... understand the differences between a front-end server and a back-end server If time permits, present a scenario that requires students to implement frontend/back-end servers and virtual servers ... Scaling the Protocol Servers This section explains how to scale the servers using Internet protocols to accommodate more users by configuring front-end/back-end servers and virtual servers Make sure...

Ngày tải lên: 10/12/2013, 16:15

... VPN Router Servers and menu paths” on page 45 shows the server type and its corresponding configuration windows Table Servers and menu paths Servers Menu path DHCP, DHCP-CLIENT Servers, DHCP ... resources and stops responses to other user requests FTP command overflow crashes FTP servers that contain buffer overflows for commands that take arguments This applies to the user command, which ... users can access particular servers and services NN46110-508 01.01 Chapter Overview of firewalls, filters, and NAT 27 You use filters to fine-tune access to specific hosts and services All users use...

Ngày tải lên: 13/12/2013, 09:15

... SQL Servers into a List Box Private Sub frmHowTo7_1_Load(ByVal sender As System.Object, _ ByVal e As System.EventArgs) Handles MyBase.Load ' Load up the SQL Servers LoadSQLServers(Me.lstSQLServers) ... Table 7.2 Label, ComboBox, ListBox, and Command Button Control Property Settings Object Property Setting Label Name Label1 Text SQL Servers ListBox Name lstSQLServers Label Name Label2 Text Databases ... Private Sub lstSQLServers_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) _ Handles lstSQLServers.SelectedIndexChanged ' If both the SQL Server and database are...

Ngày tải lên: 21/01/2014, 12:20

... cho máy khách kết nối Internet trực tiếp trường hợp này, tất kết nối bên cho qua nhiều proxy kết nối Proxy Servers Caching Caching trang web cải thiện chất lượng dịch vụ mạng theo cách Thứ nhất, ... Chia sẻ kết nối với Proxy Server Nhiều sản phẩm phần mềm dành cho chia sẻ kết nối mạng gia đình xuất số năm gần Mặc dù vậy, mạng kích thước lớn trung bình, proxy server giải pháp cung ... rộng Tiếp đến, cải thiện khả đáp trả cho máy khách Ví dụ, với HTTP proxy cache, Web page load nhanh trình duyệt web Cuối cùng, proxy server cache tăng khả phục vụ Các Web page dòng khác cache khả...

Ngày tải lên: 15/03/2014, 06:20

... between the Application layer and the Transport layer, monitoring TCP handshaking between packets from trusted clients or servers to untrusted hosts, and vice versa The proxy server is still an intermediary ... application layer proxy is transparent • Opaque – the local party must configure client software to use the proxy • client software must be proxy- aware software • Netscape proxy server is opaque ... real connection between the client and server, a regular proxy can’t be used • Windows Media Player, Internet Relay Chat (IRC), or Telnet • Circuit-level proxy servers were devised to simplify...

Ngày tải lên: 29/03/2014, 15:20

... Using object serialization to exchange highlevel data structures between applets and servlets • Sending POST data and processing the results within the applet (HTTP tunneling) • Bypassing the HTTP ... chạy thêm máy chủ khác Ghi Chú • Truyền liệu qua Get and showDocument – Có thể truy cập url – Dùng trình duyệt để xem kết • Truyền liệu qua Get and URLConnection – Chỉ truy cập URLs applet’s home ... Ghi Chú (tt) • Truyền liệu qua Get and URLConnection (tt) – Applet gửi liệu đơn giản – Máy chủ gửi liệu phức tạp (bao gồm Java Objects) • Truyền liệu với Post and UrlConnection Ghi Chú (tt) – Chỉ...

Ngày tải lên: 07/08/2014, 15:21

... the router and its network • Compromise other routers in the network and possibly the neighboring networks • Observe and log both incoming and outgoing traffic • May avoid firewalls and Intrusion ... and Countermeasures v6 Hacking Router, Cable Modem and Firewalls Exam 312-50 Certified Ethical Hacker Identify Router Routers can run Webserver, SSH Daemon, chargen, and even run multiple X servers ... router and its network Compromising other routers in the network and possibly also the neighboring networks Monitoring and recording logs of the incoming and outgoing network traffic Avoiding firewalls...

Ngày tải lên: 26/12/2013, 20:57

... The best broadband routers /firewalls (for example, many of the Linksys broadband firewalls) include application-level filtering, deep packet inspection, SPI, firewall hardening, and NAT   ... repackages the packet and delivers it to the internal host (HostA), which thinks that the response is from the external host (HostB) In addition, most broadband routers /firewalls are designed ... environments, it is important to understand that reliance on NAT alone to protect hosts is a false sense of security because NAT does not guarantee security in and of itself, as noted in RFC 2663...

Ngày tải lên: 26/01/2014, 04:20

... in it or from multiple clients Figure 7-1 Web servers handle requests for multiple files Once the daemon gets a request, it will go and get the file and return it to the requester As we discussed ... you understand the information provided in the interface and can envision what you could use it for, it becomes apparent how your name got on so -and- so's e-mail list after you visited soand-so's ... being returned MIME types to be accepted by the client Client browser name and version Before Java Web Servers and Web servers with built-in Java support, a Java program could be run as a CGI program...

Ngày tải lên: 29/09/2013, 09:20

... application servers of today VAX and AS/400 machines running VMS and OS−400 now serve as web servers, e−mail hosts, and e−commerce engines They also require protection, so there are firewalls available ... After installing a number of command−line based free firewalls (see Chapter 16) and firewalls that run on top of Unix or Windows (see Chapters 17 and 18), installing and configuring the Firebox 1000 ... happier our customers are with us Firewalls like Elron and GNAT box hold down a middle ground between computer−based firewalls and device−based firewalls; they run on standard i386 hardware, but they...

Ngày tải lên: 29/09/2013, 13:20

... in it or from multiple clients Figure 7-1 Web servers handle requests for multiple files Once the daemon gets a request, it will go and get the file and return it to the requester As we discussed ... you understand the information provided in the interface and can envision what you could use it for, it becomes apparent how your name got on so -and- so's e-mail list after you visited soand-so's ... being returned MIME types to be accepted by the client Client browser name and version Before Java Web Servers and Web servers with built-in Java support, a Java program could be run as a CGI program...

Ngày tải lên: 06/10/2013, 14:20

Ngày tải lên: 20/10/2013, 07:15

... internal network and using NAT to expose it in an unfiltered fashion to the Internet This exposure allows any Internet host to fully connect to and access the host in an unrestricted and nonfirewalled ... All users log in using the same username and password to perform any management functions, and all authenticated users have the same rights The Linksys routers also typically provide basic syslog ... the router also supports RIP versions and Although RIP can prove adequate for small environments, the implementation of RIP on the router is extremely basic and lacks any kind of security functions;...

Ngày tải lên: 20/10/2013, 07:15

... receives, and queues messages with exactly-once semantics It supports synchronous and asynchronous interaction Scalability You can cluster BizTalk-based servers as and when needed to meet demand You ... messaging and collaborative support for your e-business solutions Host Integration Server 2000 provides mainframe and AS/400 connectivity for your Microsoft Windows®-based servers and applications ... e-business solution has multiple servers participating in the caching and optimization of performance, ISA Server allows you to distribute content between the servers and then pre-load the cache You...

Ngày tải lên: 10/12/2013, 16:16

... login prompt and stored up the username and password It then turned around and used a modified version of telnet to connect to well.sf.ca.us and passed packets back and forth between it and Frank’s ... Gina 1-27-96 CH06 LP#3 IP Spoofing and Sniffing Do not confuse the rexec commands (rexec and rcmd) with the r-commands The rexec daemon waits for a username and cleartext password to authenticate ... example, at the network layer, routers are trusted to deliver datagrams and correct routing tables to the hosts on their networks Hosts are trusting of routers and routers are trusted machines...

Ngày tải lên: 20/12/2013, 22:15

... simplify network management This version of Windows 2000 is ideal for file and print servers, Web servers, and workgroups, and provides improved network access Windows 2000 Server supports up to ... access and change information in Active Directory 8 Module 1: Introduction to Microsoft Windows 2000 File, Print, and Web Servers Active Directory also provides benefits for file and print servers ... existing settings, users, groups, and permissions Windows 2000 also provides significant performance enhancements for file, print, and Web servers Upgrading Existing Servers to Windows 2000 Provides...

Ngày tải lên: 17/01/2014, 08:20

... tree, expand Storage, and then click Disk Management In the details pane, right-click an NTFS volume, and then click Change Drive Letter and Path Module 3: Configuring File and Print Servers ... Creating and sharing folders Creating and configuring users and groups Setting permissions on files and folders Estimated time to complete this lab: 45 minutes Module 3: Configuring File and Print Servers ... File and Print Servers Lab A: Configuring a File Server Slide Objective To introduce the lab Lead-in In this lab, you will configure disks for a file server, and create and configure a stand-alone...

Ngày tải lên: 17/01/2014, 08:20

... Represents commands, command options, and portions of syntax that must be typed exactly as shown It also indicates commands on menus and buttons, icons, dialog box titles and options, and icon and menu ... Active Directory™ directory service and its benefits for Windows 2000 file and print servers Installing and Configuring Microsoft® Windows® 2000 File, Print, and Web Servers vii Course Timing The ... (continued) 4:45 5:30 Module 5: Enhancing File and Print Servers with Active Directory viii Installing and Configuring Microsoft® Windows® 2000 File, Print, and Web Servers Trainer Materials Compact Disc...

Ngày tải lên: 17/01/2014, 08:20

... analysis and advanced correlation and reporting on the data, helping to identify and eliminate threats and security incidents while ensuring compliance with federal and industry rules and regulations ... regulations (such as Sarbanes-Oxley and the Health Insurance Portability and Accountability Act) The number of events and the amount of data that Security Manager can handle far exceed the capabilities ... but on a wide range of host systems and applications This information can be consolidated and reported on, ensuring compliance with federal and industry rules and regulations Syslog Security Deficiencies...

Ngày tải lên: 21/01/2014, 02:20

... wrong VLAN, and thus the wrong DMZ segment (which may create an inadvertent security risk) Although you can mitigate this by paying careful attention to detail and having well-documented and well-followed ... (VACLs) to provide a means of filtering traffic at Layer 2, and thus within the VLAN, to further protect resources Virtual Firewalls Virtual firewalls build upon the practice of using VLANs After ... interface Virtual firewalls are most commonly implemented by separating a single firewall into multiple logical firewalls, sometimes referred to as security contexts Virtual firewalls are also...

Ngày tải lên: 21/01/2014, 02:20