The crt name is securecrt. It is a computer terminal emulation program that supports SSH1, SSH2, Telnet, and rlogin protocols. It is mainly suitable for connecting to remote systems including Windows, UNIX and VMS. It also has all the features of the popular CRTTelnet client. Including: automatic registration, maintaining different features for different hosts, printing functions, color settings, variable screen size, user-defined keymaps, etc., powerful and complete. In addition, the built-in VCP command line program of the software can transfer encrypted files, and when using it to communicate with the server, the user name and password are encrypted, which effectively prevents the eavesdropping of the password and achieves real-time confidentiality. .
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Original link: http://www.ddooo.com/softdown/170345.htm
1. Extensive terminal emulation
2. Excellent session management features
3. Protocol support
4. Secure Shell encrypted login and session data
5. File transfer tool
6. Script support
Use tutorial
1. Download and unzip, first double-click! Greening uninstall.exe to open, the following page will pop up, enter 1
and press Enter; 2. CRT configuration color operation instructions
directly modify the global options, so as not to reset every time a server is added:
3. Global settings:
keyboard scheme selection: terminal -> emulation.
Terminal select "Linux", check "ANSI color" and "Use color scheme", please refer to the following follow-up
note color scheme selection "white/black" for terminal color configuration , set Font size:
If there are garbled Chinese characters in the font (F) , modify the "Character Encoding (H)" above, generally "UTF-8".
Note that the following character set must select "Chinese GB2312": (Chinese is optional, English is not necessary)
After configuration, the default colors of the login terminal are as follows:
Terminal global color settings:
Options ——" Global Options ——" Terminal ——" Appearance ——" ANSI Color
Set "Bold Colors" to the clear color you like. As shown in the figure below:
the effect of the configuration:
Note: The color in the shell script will also change from dark blue to light blue above, as shown in the figure below: After
crt is connected, if it is not used for a long time, it will be disconnected, which will often cause working status. The loss. The following settings can always maintain the SecureCRT connection:
If the SecureCRT display on the large display cannot occupy the entire screen, it can be adjusted through Global Options/Terminal/Appearance/Maximum columns
SecureCRT upload and download introduction
File transfer protocols are: ASCII, Xmodem, Ymodem, Zmodem
file transfer is the main form of data exchange. In file transfer, in order to enable the file to be correctly identified and transferred, we need to establish a unified transfer protocol between the two computers , This agreement includes the identification of the file, the start and end time of transmission, the judgment and correction of errors and so on. Common transmission protocols are as follows:
1) ASCII: This is the fastest transmission protocol, but it can only transmit text files.
2) Xmodem: This ancient transmission protocol is slow, but due to the CRC error detection method, the transmission accuracy can be as high as 99.6%.
3) Ymodem: This is an improved version of Xmodem. It uses 1024-bit section transmission, which is faster than Xmodem.
4) Zmodem: Zmodem uses a streaming transmission method, which has a faster transmission speed, and also has the functions of automatically changing the section size, resuming the transmission of breakpoints, and fast error detection. This is currently the most popular file transfer protocol.
In addition to the above, there are protocols such as Imodem, Jmodem, Bimodem, Kermit, Lynx, etc. As they are not supported by most manufacturers, they are omitted here.
SecureCRT can use the zmodem protocol under Linux to quickly transfer files. You only need to set the default directory for uploading and downloading.
Under options->session options ->Terminal->Xmodem/Zmodem, set the upload and download directories in the Directories on the right column. ：
Upload files
Use Zmodem to upload files from the client to the linux server
1) First use this program to log in to the directory of the Linux terminal, which is the directory where you store the uploaded files
2) Select the path where you want to upload the file under Linux, and enter the rz command in this directory, SecureCRT will pop up a file selection dialog box, find the file you want to upload in the search range, and press the Add button; then OK, You can upload the file to linux.
3) Or pop up a file selection dialog box in Transfer->Zmodem Upoad list, select the file and press the Add button; then OK, the window closes automatically; finally, select the directory where the file is stored under linux, and enter the rz command; Linx will save the file Uploaded to this directory.
Download files
Use Zmodem to download files to the client:
sz filename
zmodem can be started automatically when receiving, and the downloaded files are stored in the default download directory you set (the directory where the upload and download directories are set in the Directories above)
rz, sz is Linux /Unix is a command line tool for ZModem file transfer with
Windows. As long as the Windows side supports ZModem's telnet/ssh client, SecureCRT can use SecureCRT to log in to the Unix/Linux host (either telnet or ssh)
1) Upload: run the command rz , Is to receive a file, SecureCRT will pop up a file selection dialog box, after selecting the file, close the dialog box, and the file will be uploaded to the current directory
2) Download: Run the command sz file1 file2 to send the file to windows (the saved directory is OK Configuration) is much more convenient than the ftp command, and the server does not need to open the FTP service.
Note: If the rz and sz commands are invalid, please install rzsz-0.12.20-853.2.i586.rpm first
Software function
1. Extensive terminal emulation:
VT100, VT102, VT220, ANSI, SCO ANSI, Xterm, Wyse 50/60,
and Linux console emulation (with ANSI colors).
2. Excellent session management features: the
new tabbed user interface and Activator tray tool minimize the clutter on the desktop.
Session settings can be saved in a named session.
3. Protocol support:
support SSH1, SSH2, Telnet, RLogin, Serial, and TAPI protocols.
4. Secure Shell:
Secure Shell encrypts login and session data, including the following support:
-Port forwarding makes TCP/IP data more secure
-Password, public key, keyboard interaction and Kerberos authentication
-AES, Twofish, Blowfish, 3DES, RC4, and DES encryption
-X11 forwarding
5. File transfer tools:
VCP and VSFTP command line utilities make file transfer using SFTP more secure.
6. Script support:
support VBScript and JScript scripting languages.