The remote system is probably doing a reverse DNS lookup or some other lookup of the incoming connection.  Make sure DNS is configured on the server side, and that there is a reverse address for your client.

Another possibility is the remote server is trying to do a ident on the incoming connection.  If it's not running it should be fine, but if it's firewalled to drop instead of reject it could require a timeout.


----- Original Message -----
> From: "Arul Edison (GE Healthcare)" <[log in to unmask]>
> To: "Scientific Linux Users" <[log in to unmask]>
> Sent: Tuesday, May 27, 2014 6:57:59 AM
> Subject: telnet is too slow in Scientific Linux
> 
> Below is the list of packages I have installed for telnet service
> 1)telnet-0.17-47.el6_3.1.x86_64
> 2)telnet-server-0.17-47.el6_3.1.x86_64
> 
> when I checked for the status of telnet service, it is as below
> /sbin/chkconfig  | grep telnet
> 
> Still when a telnet session is opened to this PC, it takes exactly 30
> seconds to show the login prompt
> -----Original Message-----
> From: [log in to unmask]
> [mailto:[log in to unmask]] On Behalf Of
> Edison, Arul (GE Healthcare)
> Sent: Tuesday, May 27, 2014 3:36 PM
> To: Scientific Linux Users
> Subject: telnet is too slow in Scientific Linux
> 
> Hi All,
> 	In my system, I want to provide telnet feature and hence I installed
> 	the telnet rpms . however I found that , when connected from
> 	another system with telnet command, it takes 30 mins to show the
> 	telnet login prompt.
> 	Is there any configuration needed to be performed to make the telnet
> 	fast?
> Many Thanks,
> Arul
>