What tools does securecrt refer to?

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SecureCRT is a terminal emulation program that supports SSH (SSH1 and SSH2). To put it simply, it is the software that logs into the host computer of UNIX or Linux server under Windows. Encrypted files can be transferred by using the included VCP command line program.

Brief introduction of SecureCRT

SecureCRT is a terminal emulation program that supports SSH (SSH1 and SSH2). To put it simply, it is the software that logs into the host computer of UNIX or Linux server under Windows.

SecureCRT supports SSH, as well as Telnet and rlogin protocols. SecureCRT is an ideal tool for connecting operations, including Windows, UNIX, and VMS. Encrypted files can be transferred by using the included VCP command line program.

There are all the features of popular CRTTelnet clients, including: automatic registration, different features for different hosts, printing capabilities, color settings, variable screen sizes, user-defined key bitmaps, and excellent VT100,VT102,VT220 and ANSI competition.

Can be run from the command line or from a browser. Other features include text manuscripts, easy-to-use toolbars, user's key bitmap editor, customizable ANSI colors, etc.

SecureCRT's SSH protocol supports DES,3DES and RC4 passwords and password authentication with RSA.

Introduction to SSH (secure Shell Protocol)

SSH is an acronym for Secure Shell and was developed by IETF's network team (Network Working Group). SSH is a security protocol based on the application layer. SSH is currently a reliable protocol designed to provide security for remote login sessions and other network services. The use of SSH protocol can effectively prevent information leakage in the process of remote management. SSH was originally a program on the UNIX system, and then rapidly expanded to other operating platforms. When used correctly, SSH can make up for loopholes in the network. The SSH client is suitable for a variety of platforms. Almost all UNIX platforms-including HP-UX, Linux, AIX, Solaris, Digital UNIX, Irix, and others-can run SSH.

Application in the project

Configuring local port forwarding in SecureCRT involves the local machine, the springboard machine, and the target server. Because the local machine cannot communicate with the target server directly, you need to configure port forwarding to forward the local request to the target server.

1. Log in to the jumping machine [192.168.247.128]

2. Configure local port forwarding

Options-> session options-> Port forwarding-- > add-> Local Port forwarding Properties-> OK

3. At this point, the request for port 8081 of the local machine (127.0.0.1) will be forwarded through port 8081 of the target server (10.192.26.31) forwarded by the springboard machine (192.168.247.128).

4. During the forwarding process, the SecureCRT (jumping machine) must be connected, otherwise the port forwarding will fail.

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