Mail Archives: cygwin/2002/12/16/19:09:08
I just did a fresh install of 1.3.17 and setup telnetd. The login prompt
is delayed by about 3 minutes! rlogin works just fine.
This problem was described in detail
in the mailing list towards the end of the summer.
Is there a fix or a workaround?
thanks/regards,
Tom Rodman
------- Forwarded Message
From: "Bruce Dobrin" <dobrin AT imageworks DOT com>
To: <cygwin AT cygwin DOT com>
Subject: inetd telnet slowness
Date: Fri, 6 Sep 2002 14:02:08 -0700
<snipped>
I wrote about a month ago with this problem, but didn't manage to work out
a viable solution.
If I stop inetd and run "in.telnetd -debug" All is well. It appears to
capture the machine/user correctly and I am imediately logged in (bypassing
the login/passwd prompt).
With inetd running, telnet starts, then hangs for about 3 minutes, finaly
ginving me a "Login:" prompt. I assume that Inetd didn't pass usable
machine/user information to the in.telnetd, and that the delay and eventual
"login:" prompt is in.telnetd timing out waiting for login information,
but I could be wrong about this. Rlogind works fine with inetd, and I
assume it uses a similar validation mechanism. I'd appreciate any
assistance.
The diff of the Debug logs with and without inetd:
with inetd:
- -------------cut--------------
td: send suboption NEW-ENVIRON SEND
td: send suboption TERMINAL-TYPE SEND
td: ttloop
td: netflush 249 chars
td: ttloop read 73 chars
td: netflush 26 chars
td: recv suboption NAWS 0 80 (80) 0 25 (25)
- -------------cut----------------
.......XON VARIABLE|ACK 17; XOFF VARIABLE|ACK 19; FORW1 VARIABLE|ACK 0;
FORW2 VARIABLE|ACK 0;
td: netflush 404 chars
td: Entering processing loop
#####
##right here is where it hangs for 3 minutes}
#####
CYGWIN_NT-5.0 1.3.12(0.54/3/2) (genevieve) (tty2)
td: netflush 84 chars
td: netread 9 chars
td: recv do ECHO
td: recv will BINARY
td: recv wont LINEMODE
td: netflush 85 chars
login: td: netflush 7 chars
- -------------cut----------------
Without inetd:
- -------------cut----------------
td: send suboption NEW-ENVIRON SEND
td: send suboption TERMINAL-TYPE SEND
td: ttloop
td: netflush 249 chars
td: ttloop read 131 chars
td: netflush 27 chars
td: recv suboption NAWS 0 80 (80) 0 25 (25)
- -------------cut----------------
......XON VARIABLE|ACK 17; XOFF VARIABLE|ACK 19; FORW1 VARIABLE|ACK 0; FORW2
VARIABLE|ACK 0;
td: netflush 404 chars
td: Entering processing loop
td: netflush 30 chars
td: netread 9 chars
td: recv do ECHO
td: recv will BINARY
td: recv wont LINEMODE
td: netflush 85 chars
Fanfare!!!
You are successfully logged in to this server!!!
- -------------cut----------------
<snipped>
------- End of Forwarded Message
--v-v------------------C-U-T---H-E-R-E-------------------------v-v--
To: "James Garrison" <jhg AT athensgroup DOT com>
cc: <cygwin AT cygwin DOT com>
From: "Bruce Dobrin" <dobrin AT imageworks DOT com>
Subject: Re: Telnet takes minutes
<mail headers snipped>
--------------------------------------------------------------------
Thanks for the quick response.
Those particular machines (1.3.12) are all on different segments from each
other, with different os's (NT,XP, and 2K). But I have tried from other
machines on both the same and different segments, same result, and from
different telnet clients (SGI, Linux, NT, Cygwin...) it seems consistant.
I even telneted to "localhost" and to the machine name and ip from
itself.... same result. I assume reverse DNS is configured as it works (I
didn't know it was configurable).. as a side note, rsh/rlogin works like
a champ....
<snipped>
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