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To validate telnet connectivity in java code

Sesha Sathish
Greenhorn

Joined: Mar 01, 2011
Posts: 5

How to check whether telnet connectivity is available in my java code
Ulf Dittmer
Marshal

Joined: Mar 22, 2005
Posts: 42047
    
  64
It doesn't make sense to speak of "Telnet connectivity in Java code". You might ask whether there is Telnet connectivity to some other machine - that depends on whether the other machine is set up to be a Telnet host, and whether there's a network connection to that machine that allows Telnet traffic to go through. You can test this using a Telnet client such as Apache Commons Net.


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Sesha Sathish
Greenhorn

Joined: Mar 01, 2011
Posts: 5

As in there is a web site run by us.There are several protocols used http,https,ftp,ftps,ssh.My requirement is it i should check for generic protocol connectivity using telnet in local pc
for example:
if(ftp.isConnected()){
SFTLogger.writeToTraceLog(className,SFTConstants.INFO,
methodName,
userId+SFTConstants.HYPHEN_SEPERATOR+userName,
transmitterID + SFTConstants.HYPHEN_SEPERATOR + transmitterName,
fileTrackingID,
"Disconnecting from FTP Server ",null);
Ulf Dittmer
Marshal

Joined: Mar 22, 2005
Posts: 42047
    
  64
So you'd attempt a Telnet connection and handle any exceptions accordingly.

Note that Telnet should no longer be used over connections that go through untrusted networks (in other words, the public internet, unless it's over a VPN). That's what SSH is for.
Campbell Ritchie
Sheriff

Joined: Oct 13, 2005
Posts: 39084
    
  23
. . . and welcome to the Ranch
Sesha Sathish
Greenhorn

Joined: Mar 01, 2011
Posts: 5

Solved

Campbell Ritchie
Sheriff

Joined: Oct 13, 2005
Posts: 39084
    
  23
Please always use the code button. Since you are new, I shall edit your post and you can see how much better it looks
 
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