Bug 30076 - incoming telnet session very slow to start
incoming telnet session very slow to start
Product: Red Hat Linux
Classification: Retired
Component: telnet (Show other bugs)
i386 Linux
medium Severity high
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Assigned To: Harald Hoyer
David Lawrence
Depends On:
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Reported: 2001-02-28 15:47 EST by rparker@fprep.org
Modified: 2007-04-18 12:31 EDT (History)
0 users

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Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Last Closed: 2003-08-05 04:16:17 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description rparker@fprep.org 2001-02-28 15:47:36 EST
From Bugzilla Helper:
User-Agent: Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 4.0)

When attempting to telnet into the Linux system, it requires between 30-60 
seconds for system to respond with "login" prompt. Once connection is 
established, response time is OK.

Reproducible: Always
Steps to Reproduce:
1. Telnet into system from NT/Win98 system.

Actual Results:  After 30-60 seconds, system responds with 
expected "login" prompt.

Expected Results:  Login prompt should display in under 10 seconds.
Comment 1 Bill Nottingham 2001-02-28 17:16:32 EST
It's trying to do a DNS lookup of where you're connecting from.

Make sure the server machine's DNS is configured correctly, and that the client
machine is resolvable.
Comment 2 rparker@fprep.org 2001-02-28 17:20:08 EST
We don't use DNS for name resolution; we use WINS. Is there any way to bypass 
this feature (whatever it may be), or use WINS for name resolution? Security 
isn't an issue, we're behind a firewall.
Comment 3 Harald Hoyer 2001-08-01 02:47:10 EDT
Could you please retry with:
Bonus: security fixes to the recently discovered vulnerabilities

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