2011年9月23日 · Can anyone tell me how to telnet to an address using a specific port? I've tried the following: telnet 10.1.1.55 I suppose a route just hasn't been set up between the two hosts? What I am trying to do is this. We have a medical device – a ventilator. it is connected to the network via a converter box called ECOV-110 on this ip address.

2019年7月19日 · The reason why it's fine for "simple TCP manipulation" is that many telnet programs were written to actively send options only if you're connecting to the standard Telnet port 23, but remain passive when connecting to any other port. However, that's just a "bonus" feature – not mandatory Telnet behavior. –

2015年6月27日 · Unfair comparison. Lynx is a web browser; it communicates using HTTP to the web server. Telnet is a plain-text shell (command-line interface), and typically uses TCP. Apples versus oranges; the telnet client cannot communicate with the HTTP web server, and vice-versa due to incompatible IPs. –

2020年2月26日 · I'm trying to control a wifi device with a batch script using the telnet command in Windows 7, but I don't know how to pass the commands to the telnet window. This will be a part of a longer script tweaking other devices and PC settings. I can do this manually by running telnet <IP address> 55443 in cmd.exe, which creates a new window. In that ...

I saw many thread about sending email using Telnet, but I couldn't do that. I'm trying to connect to yahoo smtp server by : telnet smtp.mail.yahoo.com 25 The response from server is : Trying 98.138.105.21... Connected to smtp.mail.yahoo.com. Escape character is '^]'. 220 smtp.mail.yahoo.com ESMTP ready My request is : ehlo smtp.mail.yahoo.com

2016年2月12日 · Bash has been able to access TCP and UDP ports for a while. From the man page: /dev/tcp/host/port If host is a valid hostname or Internet address, and port is an integer port number or service name, bash attempts to open a TCP connection to the corresponding socket. /dev/udp/host/port If host is a valid hostname or Internet address, and port is an integer port …

(PuTTY is a great telnet client and supports logging, I'm sure the built-in Windows Hyperterminal does as well.) An answer on the Server Fault website suggests C-Kermit . I've never used it - it looks like it might work over an existing network connection like Telnet rather than only via serial.

2015年7月24日 · There is no Telnet/Netcat client – they are two separate programs, and there exist at least 10 different Telnet clients and at least 6 different Netcat versions (original netcat, GNU netcat, OpenBSD netcat, nmap's ncat; forgot the rest). The preferred tools come from TLS libraries themselves. They might be a bit verbose, though.

2015年5月14日 · putty -telnet -P 15555 test-PC -m C:\Users\tslai\Desktop\commands.txt I'm connecting using Telnet, and I have a specific port number, which is 15555, the server name's is test-PC. commands.txt is the arguments that I make. In commands.txt: only have a arguments, and it was tested can work properly if running directly by using command prompt.

2019年1月26日 · At first, I used telnet on Windows system and tried to follow Hannu's answer (set "old line mode" and set "local echo") by using these commands but still not work, unable to type GET message into it: Set mode stream Set localecho So, I switch to use telnet on Ubuntu system and it just works.