telnet | 易学教程

sending byte commands to Apache TelnetClient

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问题 Looking at: http://www.asciitable.com/ I want to send a CHAR LF, decimal value 10, and also a Chr 1, decimal byte value 49. Followed, again, by a LF. (I think that is the sequence which the telnet server at rainmaker.wunderground.com 3000 expects.) This is keyboard entry which is captured from standard input. I'm explicitly not using the Apache IOUtil example. It's necessary to thread read/writes to Apache TelnetClient , based on an example WeatherTelnet program. The TelnetClient.sendCommand(

How can I check if an email address is Correct and Exists? [duplicate]

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问题 This question already has answers here : Closed 6 years ago . Possible Duplicate: How to check if an email address exists without sending an email? I was wondering : is there a way to check if an email address is Correct and it Exists before sending an email, using Telnet or SMTP Protocol cmd-line ? 回答1: The only valid solution to detect if an email address exists is to send an email and wait for answer. Most of the times you also want to be sure that your user is the owner of the account,

invoke telnet as a shell command from Groovy

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问题 How can I get groovy, in this case groovysh, to invoke the telnet client so that replies from the server are displayed? thufir@mordor:~$ thufir@mordor:~$ groovysh Groovy Shell (1.8.6, JVM: 1.8.0_72) Type 'help' or '\h' for help. ------------------------------------------------------------------------------- groovy:000> 'telnet rainmaker.wunderground.com 3000'.execute() ===> java.lang.UNIXProcess@8458f04 groovy:000> groovy:000> exit thufir@mordor:~$ I'm aware of numerous telnet libraries for

Telnet support in JSch

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问题 I'm currently building a Java application which will connect to a switch using Telnet or SSH. I'm currently using the JSch for the SSH connection, but I read in Stack Overflow question SSH and Telnet library for java that JSch also supports Telnet. Is this correct? And if so, could some one provide a small example? 回答1: The JSch is an SSH library. Quoting the JSch web page: JSch is a pure Java implementation of SSH2 . No mention on Telnet. Also, there's no mention of the "telnet" or "23" in

学习HCIA第三天

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子网划分将一个大网络划分为一些小网络 VLSM 可变长子网掩码子网借用主机位来充当网络位 192.168.1.11000000/24 24代表前三位 192.168.1.0/25 1.1-1.126 255.255.255.128 11111111.11111111.11111111.10000000 192.168.1.128/25 1.129-1.254 192.168.1.0/26 1.1-1.62 24为前三位 26=24+2 第四位 00000000 借两位 11000000 对应 128 64 32 16 8 4 2 1 多以64 每次加64即可 192.168.1.64/26 192.168.1.128/26 192.168.1.192/26 1 2 4 8 16 32 64 128 192 224 240 248 252 汇总将一些小网络汇聚成一个大网络 CIDR 无类域间路由超网母网号一致，取相同位，去除不同位 192.168.1.0/24 192.168.2.0/24 192.168.3.0/24 192.168.0.0/22<24 超网超网的概念：汇总后的子网掩码长度小于主类网子网掩码的长度，超网基础命令 Undo terminal trapping -关闭日志 System-view 从用户视图进入到系统视图 Sysname xx

How can I get the telnet result using C / Objective C?

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问题 Here is a telnet site: telnet://202.85.101.136:8604/ It is from Hong Kong public library, can I write some programme to get the string / result from the telnet service, and send the request from C / Objective C? thz u. 回答1: If you have a telnet program already on your system, you can use it to do all the connection work for you. Here's a program for gnu/Linux that you can use as a starting point. It uses popen to execute the system's telnet command. Then it just reads all data from the pipe

Want to use double quote inside a double quote

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问题 #!/opt/sfw/bin/expect -- spawn telnet -e ! [lindex $argv 0] expect "<" send "ACT-USER::ABCDEFG:123::\"ABCD\";" Above is not working giving error due to double quote inside a double quote Error: spawn telnet -e ! Telnet escape character is '!'. invalid flags send: spawn id exp7 not open while executing "send "ACT-USER::ABCDEFG:123::'\"ABCD\"';"" (file "./get-amp-pms.sh" line 4) 回答1: Use curly braces instead of the double quotes for the send, as follows: send {ACT-USER::ABCDEFG:123::"ABCD";}

How to supress echo with TIdTelnet?

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问题 Using Indy10 - DelphiXE. How do I tell the telnet server I am connecting to with TIdTelnet to not echo the commands I send towards the telnet server? This is my current attempt (which doesn't work), I try to send the sequence IAC DO SUPPRESS_LOCAL_ECHO on each telnet write but I do believe this has to be done in the negotiating phase? uses TIdTelnet, ... procedure TIOTelnetConnection.SendSupressEcho; var Resp: TIdBytes; begin SetLength(Resp, 3); Resp[0] := TNC_IAC; Resp[1] := TNC_DO; Resp[2]

VT100 escape sequences: Cursor movement wrap around to end of line

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问题 I'm creating a Telnet CLI application that is controlled with VT100 escape sequences. So to e.g. navigate the cursor left the <ESC>[D escape sequence is sent from the Telnet server to the client, which may be Putty or Gnome-terminal. Unfortunately, with lines that are longer than the Putty line length, the escape sequence above will not permit navigating the cursor to the line above the current line. An example. Cursor is '|'. Comments are marked with '//' ---------------- >potato| // Now I

Telnet to cisco switch using php

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问题 I need to telnet to cisco switch using php and execute show interface status command and get results. I tried some php classes I found on internet but none of them could connect to device. So I tried to write the script myself, but I have the same problem, I cant connect to device. The host sends me banner message and then new line with username: . I send my username with \r\n , wait some time and tries to read data, but it looks to me like host is just ignoring my new line characters. This