telnet

How to implement a command history on a telnet client? (up/down arrows)

五迷三道 提交于 2019-12-04 16:43:15
问题 I have a server that accept telnet connections for management. I miss the command history so I want to make my telnet session support it. My questions: 1) Do I have to implement that on the server side, so the server will send the past commands to the client and then the client can re-execute? 2) Is there anyway to implement this functionality in the telnet client (not messing with the server) ? If answer is 1) then I need to know how to capture and send the up and down arrow keys on my

How can I use python's telnetlib to fetch data from a device for a fixed period of time?

时间秒杀一切 提交于 2019-12-04 16:42:59
I'm connecting to a hardware device via telnet. That device is pretty simple in terms of I/O. So I submit a command to it, and after that the device pumps out data one line at a time, once per second. Each line just contains a number. So my question is this: if I connect to this device using python's telnetlib, how can I fetch data for a fixed period of time (or a fixed number of lines of data)? I've tried using all the various read_ commands, but they all seem to block indefinitely, apart from read_until, which I can't use as the output can't be used to determine when to stop. (I'm running

Passing Special Characters into telnet Unix

大城市里の小女人 提交于 2019-12-04 13:49:38
I use the following command to send SMS messages through SMS Adapters: telnet localhost 0000 <<-EOF helo x MAIL FROM: Test RCPT TO: 447999999999 DATA Test £1234 . logout quit EOF However when ever I get the Message through it will be in the format: Test ?£1234 Appending the ? to the front of the £ symbol, I have tried investigating a few methods including MIME however not quite sure how they can be implemented. Any ideas on how I can stop and allow the successful passthroughs of £ Have you tried encoding the message first? You can do this using base64 in UTF-8 charset:- e.g. Convert: msg="

Telnet inside a shell script

不打扰是莪最后的温柔 提交于 2019-12-04 13:20:27
问题 How can I run telnet inside a shell script and execute commands on the remote server? I do not have expect installed on my solaris machine because of security reasons. I also do not have the perl net::telnet module installed. So with out using expect and perl how can I do it? I tried the below thing but its not working. #!/usr/bin/sh telnet 172.16.69.116 <<! user password ls exit ! When I execute it, this is what I am getting: > cat tel.sh telnet 172.16.69.116 <<EOF xxxxxx xxxxxxxxx ls exit

Automate telnet port testing on Windows 7 using batch script

守給你的承諾、 提交于 2019-12-04 12:41:39
I am using Windows 7 x64. Using a bat script, I need to check whether I am able to connect to some specific ports on a server using telnet. If successfully connected, the server displays a menu, or else a message like this : Connecting To xxxxx...Could not open connection to the host, on port xxxxx: Connect failed. For my purpose, the server has several ports to be tested and I don't want to complicate things by logging in or navigating menus. I just want a simple output indicating whether the connection was successful or not. Checking for exit status didn't work. I don't want to use Visual

Linux系统开启telnet登录

自古美人都是妖i 提交于 2019-12-04 12:05:13
操作步骤 1)查看telnet server是否安装 rpm -qa | grep telnet 如果没有,则安装: yum install telnet-server -y rpm -qa | grep telnet 如果没有,则安装: yum install telnet-server -y 2)开通telnet端口,去掉注释 telnet 23/tcp 一行 vi /etc/services 3)设置telnet服务状态 vi /etc/xinetd.d/krb5-telnet 或 vi /etc/xinetd.d/telnet 将disable=yes改为disable=no service telnet { disable = yes flags = REUSE socket_type = stream wait = no user = root server = /usr/sbin/in.telnetd log_on_failure += USERID } 4)配置权限 vi /etc/pam.d/login文件,注释配置auth required pam_securetty.so(没有可以不理会) 6)开通telent控制台 vi /etc/securetty 文件尾追加 pts/1 pts/2 pts/3 pts/4 pts/5 7)开启telnet开机启动:

Python telnetlib: surprising problem

喜欢而已 提交于 2019-12-04 11:37:16
I am using the Python module telnetlib to create a telnet session (with a chess server), and I'm having an issue I really can't wrap my brain around. The following code works perfectly: >>> f = login("my_server") #code for login(host) below. >>> f.read_very_eager() This spits out everything the server usually prints upon login. However, when I put it inside a function and then call it thus: >>> def foo(): ... f = login("my_server") ... return f.read_very_eager() ... >>> foo() I get nothing (the empty string). I can check that the login is performed properly, but for some reason I can't see the

使用Telnet访问端口发送数据

寵の児 提交于 2019-12-04 10:42:24
什么是Telnet?   对于Telnet的认识,不同的人持有不同的观点,可以把Telnet当成一种通信协议,但是对于入侵者而言,Telnet只是一种远程登录的工具。一旦入侵者与远程主机建立了Telnet连接,入侵者便可以使用目标主机上的软、硬件资源,而入侵者的本地机只相当于一个只有键盘和显示器的终端而已。   为什么需要telnet?   telnet就是查看某个端口是否可访问。我们在搞开发的时候,经常要用的端口就是 8080。那么你可以启动服务器,用telnet 去查看这个端口是否可用。   Telnet协议是TCP/IP协议家族中的一员,是Internet远程登陆服务的标准协议和主要方式。它为用户提供了在本地计算机上完成远程主机工作的能力。在终端使用者的电脑上使用telnet程序,用它连接到服务器。终端使用者可以在telnet程序中输入命令,这些命令会在服务器上运行,就像直接在服务器的控制台上输入一样。可以在本地就能控制服务器。要开始一个telnet会话,必须输入用户名和密码来登录服务器。Telnet是常用的远程控制Web服务器的方法。 为什么在Vista/Win7 下不能够使用telnet?Vista/Windows 7怎么执行telnet 命令?   Windows 7提示:telnet不是内部或外部命令,怎么办?一般只有Windows 7才会出现这种情况

Windows automate telnet

若如初见. 提交于 2019-12-04 10:07:49
问题 I would like to run a set of commands that would typically be run in telnet(from c#). For example I would like to run the following using System; using System.Diagnostics; namespace InteractWithConsoleApp { class Program { static void Main(string[] args) { ProcessStartInfo cmdStartInfo = new ProcessStartInfo(); cmdStartInfo.FileName = @"C:\Windows\System32\cmd.exe"; cmdStartInfo.RedirectStandardOutput = true; cmdStartInfo.RedirectStandardError = true; cmdStartInfo.RedirectStandardInput = true

docker入门-【10】通过docker安装memcached

强颜欢笑 提交于 2019-12-04 09:55:13
memcached是一个高性能的内存数据库系统。本文将讲述使用docker安装memcached。 1、搜索memcached docker search memcached 2、获取memcached docker pull memcached 3、启动memcached docker run -p 11211:11211 --name memcache memcached 4、测试并且进入docker容器 #测试是否启动成功 netstat -luntp|grep 11211 或者 docker ps #安装telnet yum install -y telnet #通过telnet方式连接memcached telnet 127.0.0.1 11211 #设置值,age是key,0是标志位,900是生命周期,8代表所占字节数,回车之后的10是value set age 0 900 8 10 #获取值 get age #退出 exit 具体操作如下: 设置和获取数据 至此,我们完成了docker安装memcached,并通过telnet进行了测试。 来源: CSDN 作者: 万和IT教育 链接: https://blog.csdn.net/qq_41717874/article/details/89472198