SecureNetTerm全方位指南：从入门到精通

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"SecureNetTerm是一款由InterSoft International, Inc.开发的安全网络终端工具，支持telnet、ssh和netterm协议。这款应用提供了多种高级功能，包括鼠标平移、动态视图、字体设置、文本选择、帮助文件文字大小调整以及对国际域名和键盘配置的支持。系统管理员可以关注一些特定的系统管理问题，而用户则可以通过用户ID/密码策略、使用X.509证书、管理SSH主机密钥和SSL/TLS登录文件等方式进行连接和安全操作。SecureNetTerm还具备丰富的菜单结构、工具栏、状态栏和右键菜单，以及对各种终端仿真模式的支持。此外，它还有详细的键盘定义和设置，以及对主机鼠标和编辑功能的支持，甚至集成WWW浏览器功能。" SecureNetTerm的使用手册详细介绍了一系列功能和操作流程，从基础的显示设置到高级的系统管理，为用户提供了一个全面的指南。首先，"Display Print Setup at print time"选项允许在打印前显示标准的Microsoft Print Setup对话框，确保用户能根据需要自定义打印设置。在用户界面部分，SecureNetTerm拥有多个菜单，如File、Edit、View、Tools、Options、Script、Language、Window和Help，这些菜单包含了各种功能选项，例如创建新配置文件、连接主机、查看和修改终端设置等。工具栏则提供快捷访问常用功能的方式，而状态栏可实时显示应用的状态信息。右键菜单增加了操作的便捷性，命令行功能则为有经验的用户提供了直接输入指令的途径。主机鼠标支持和编辑功能使得在远程会话中可以像在本地应用中一样使用鼠标，增强了交互体验。此外，SecureNetTerm支持多种终端仿真，包括流行的终端类型，确保了与不同系统的兼容性。键盘支持是SecureNetTerm的一个重要特性，它提供了键盘定义功能，允许用户自定义快捷键（Accelerators）和设置数字小键盘的行为。全局设置部分涵盖了终端设置，用户可以根据个人习惯和工作需求进行调整。 SecureNetTerm是一款强大的网络终端工具，它结合了安全性与易用性，旨在提供高效、安全的远程访问解决方案。无论是普通用户还是系统管理员，都能通过其丰富的功能和灵活的配置来满足各自的需求。

duplicated. Then provide the new site with a descriptive name. The next step is to provide all the required connection

information for the new site.

The shift-New Site is one of the most powerful features of the Site Profile Manager. It allows you to create a new host

profile, exactly like the one you currently have, by just changing the host name after the new profile has been created.

In most cases this is all that is needed for those that always connect to hosts with the same Operating System, using the

same protocol, such as SSH.

Userid/Password Considerations

Every host protocol supported by SecureNetTerm requires a valid userid for connecting to a host. Most protocols

require a password. The fact that these two items are user dependent requires special consideration for both

SecureNetTerm and the user. Each protocol has different methods for providing these two items, which a vastly

different.

The telnet protocol, as well as the direct connect and dialup hosts ask for the userid and password interactively. The

format, method and timing of how each host type requests this information is not consistent, requiring each to be

supplied manually by the user, or by scripts created by the user.

For more advanced protocols, such as SSH, both the userid and password are passed to the host in a well defined

method. The remainder of this topic pertains to the SSH protocol.

If the userid and or password is the same for most, if not all, of the hosts you connect to, then they should be specified in

the Global Settings-Connection-Control panel. If you have a few hosts that have a different userid and or password, you

can place them in the host profile for those few hosts, or you can have SecureNetTerm request them at connect time.

Whenever the host requests either the userid or password, SecureNetTerm will first check the host profile, then the

global definition. If they are not contained in either location, each will be requested interactively.

Connect to a host using a profile

SecureNetTerm has the ability to remember the last profile you connected to, as well as a default host. When you start

SecureNetTerm, and you want to connect to the last active host, simply press the “Connect” icon on the ToolBar. To

select a new host profile, press the “Site Profile Manager” icon, and then select the desired host. You can then press the

“Connect” button in the Site Profile Manager, or you can exit the Site Profile Manager, then press the ToolBar

“Connect” icon.

If you select the "Default Host" checkbox for a host, it will always be displayed when you open the Site Profile

Manager.

Connect to a host without a profile

You can connect to any host without the need to create a host profile using the QuickConnect bar. This is useful for

those hosts that are rarely accessed.

The QuickConnect bar can be used to connect to all types of host servers. It also allows for userid/password

authentication for each server type. If a SSL/TLS server requires a client certificate, a popup dialog will be presented

when the server requests the client certificate. The popup dialog will display a list of your certificates, and allows you to

view/select the proper one to use.

To enter a new host, simply type over the current host name and the other fields. When you press the "QuickConnect"

button (the first button on the left side of the bar) to connect, the new host will be entered into the QuickConnect history

list. This list can be cleared at any time by pressing the "QuickConnect" button while holding down the Shift-Delete

keys. The current entry can be deleted by pressing the "QuickConnect" button while holding down the Ctrl-Delete keys.

Use X.509 Certificates

A X.509 digital certificate is a set of electronic credentials that uniquely identify an individual. There are two parts to a

digital certificate: a private key and a certificate.

Your private key is the piece of information that uniquely identifies you within the Public Key Infrastructure. The

private key is mathematically created on your personal workstation, under your supervision, and is known only to you.

The certificate is the public part of your digital certificate. It contains your name and other identifying information. It

also contains the public key, which is mathematically related to the private key. Using your certificate, other people can

verify that you hold your private key, and therefore, must really be who you say you are.

Certificates can be generated and stored within browser software stores (databases), or within specialized Smart

Cards/USB tokens. Smart Cards/USB tokens are hardware devices that protect the private key from access by anyone

accept the owner. This is the main benefit of these devices. They serve as an impenetrable safe for the private key,

ensuring that only the intended user has access to it. The private key can be generated on-board and never leaves the

device for signing and encryption operations.

Certificates can be used for authentication with servers supporting SSH and SSL/TLS.

Manage SSH Host Keys

The SSH authentication allows public/private RSA keys, as well as X.509 certificates to be used for client

authentication. Although the documentation of many host SSH servers only refer to public/private RSA keys, X.509

certificates can still be used, since these certificates are nothing more than public/private keys with enhanced security

related information contained within a “certificate”. The public key is a component of this certificate. SecureNetTerm

fully supports the use of certificates for public/private key authentication.

The concept of public/private key authentication is a public/private key pair is created on the workstation. The private

key is retained on your local workstation, the public key is transferred to the host and placed in a unique location

specified by the host SSH server. When you attempt to login to a host using public/private key authentication, the host

server will send a challenge to SecureNetTerm. SecureNetTerm will sign this challenge with your respective private key

and return the signed challenge to the host server. The server will then verify the signed challenge using your public

key. If the host server determines that you are the holder of the correct private key, it will allow you to login. Refer to

the Key Management section on how to create and install these key pairs.

Manage SSL/TLS .tlslogin file

Most UNIX based SSL/TLS servers allow logging into the system with only a userid and a certificate. This is

commonly referred to as client certificate authentication. Although the complete details/requirements on how to enable

this feature can only be provided by the system administrator of the host, almost all of these systems require a copy of

the client certificate be located on the host. The .tlslogin file, located in the users home directory, is commonly used to

contain these user certificates. Most servers allow multiple certificates to be placed within the file.

Guide to Using SecureNetTerm How To • 15

Program Overview

Menus

File Menu

The file menu supports connecting/disconnecting a host, access to the Site Profile Manager, printer management and

program exit. The "Process SmartPrint" item is normally grayed out indicating that no printer output is pending within

SmartPrint. This item will be enabled whenever the SmartPrint option is enabled, and printer output has been received

form the host. If enabled, this option should be selected prior to closing SecureNetTerm to send the contents of the

SmartPrint buffers to a printer.

Edit Menu

The edit menu provides copy/paste clipboard support and special terminal requirements.

The copy/paste menu items support both the active (current) screen as well as the scroll back buffer. The scroll back

buffer contains data that was once displayed on the active screen, and was then "scrolled" out of view by the contents of

a new screen. In the past, the scroll back buffer provided an exact duplicate of lines that were displayed on the screen.

This was in the era where the host wrote physical lines to the screen (a physical line was one that contained line

termination characters such as an line feed and or a carriage return). Most current applications use the concept of full

screen mode in which data is placed upon the screen based upon the current cursor location. Data written to the screen

in this manner cannot be placed within the scroll back buffer.

The special terminal menu item "Reset Cursor" will restore (display) the terminal cursor if it is hidden for some reason.

The host application has the ability to hide the cursor, and sometimes forgets to turn it back on. Under most conditions,

this menu item will not have to be used.

The special terminal menu item "Reset Terminal" is much like the previous item, in that it can be used when a host

application is aborted and leaves the terminal in an unknown state.

The Send Short and Long Break menu items are used to send a break signal. If the current connection is over a modem,

a modem break hardware signal will be sent. If the current connect is over a telnet channel, a telnet break command will

be sent.

The "Telnet Abort" menu items sends a telnet abort command, which will stop the current running host application.

This command is only useful for telnet connections.

Guide to Using SecureNetTerm Program Overview • 17

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