1
I am trying to ping one remote server. I am surprised that ping works but not telnet.
ping 174.25.366.25 --connection is successful.
where as
telnet 174.25.366.25 --connection timed out
I also want to check for connection on specific port
telnet 174.25.366.25 8090 ---connection timed out
Why is that difference and what does it convey
Patan
Posted 2013-06-13T06:25:24.573
Reputation: 139
3
Well from what you say you got a port problem
poqdavid
Posted 2013-06-13T06:25:24.573
Reputation: 441
Thank you for the response. I am still not getting why ping works but not telnet. Can you help with that – Patan – 2013-06-13T07:21:32.010
1@Patan because ping is using ICMP protocol and Telnet is using TCP/IP, typically port 23. Your server's IP is reachable, but it's not receiving port 23 connections because this port is either blocked or not forwarded. – gronostaj – 2013-06-13T07:38:11.030
@gronostaj. Here I am using port 8090. Even then it is getting refused. So can I assume that the port 8090 is blocked or not forwarded. – Patan – 2013-06-13T07:40:26.613
1@Patan one more thing that comes to my mind is a firewall blocking that port. – gronostaj – 2013-06-13T07:42:47.440
here is a link that might be useful to for testing ports http://www.yougetsignal.com/tools/open-ports/
– poqdavid – 2013-06-14T13:30:25.050
You should really think about switching to SSH. Telnet is completely insecure. – gronostaj – 2013-06-13T07:39:15.940