I am in the process of solving a lingering problem with telnet. It
takes for ever to establish a telnet connection from some machines to
other machines on my LAN (same network segment, no firewall ...),
however from other machines in the same network segment the telnet
session responds almost immediatly. From searching around I believe
that this can be solved by bypassing the DNS server and having entries
in the local host files of the different machines (UNIX and VMS). The
problem appears to be related to reverse lookups.
Arranging the use of local host files will take time on some of the
machines, but I beleive that the process can be sped up if I could
sell the change as a performance improvment. We only use the RPC
component of DCE, which maked similar calls to Microsofts COM/DCOM
technology. Our DCE servers are on the VMS server and we have a
central registry on a UNIX machine. The central registry is actually a
DCE server. The clients are running on NT servers. Calls are initiated
from the NT machine to the UNIX machine to find a server, once a
server is located, calls from the NT clients, go directly to the VMS
machines. Each time a call is made from the client the whole localion
process begins again. Although timings dont suggest that the RPC calls
take as long as the telnet connections, I am wondering if we can
reduce the call timings by adding entries to the local hosts files.
Any ideas would be appreciated...