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)" <[email protected]> > To: "Scientific Linux Users" <[email protected]> > 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: [email protected] > [mailto:[email protected]] 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 >
