MEHTA,HIREN (A-SanJose,ex1) wrote:
> How do I verify that it is listening on 21 and 23 ?
> The wu-ftpd file in the /etc/xinetd.d directory says has the following :
>
> service ftp
> {
> ....
> server = /usr/sbin/in.wuftpd
> ....
> }
>
> Similarly the file telnet in /etc/xinetd.d directory has the following :
>
> service telnet
> {
> ...
> service = /usr/sbin/in.telnetd
> ...
> }
Are the "disable = " lines set to no?
> And the /etc/services file has entries for ftp/telnet as follows :
> ftp-data 20/tcp
> ftp-data 20/udp
> ftp 21/tcp
> ftp 21/udp
> telnet 23/tcp
> telnet 23/udp
>
>
> Do I need to get rid of those duplicate lines corresponding to UDP ?
> I just tried removing lines corresponding to UDP and it worked !!!!
>
> I am not sure why those entries corresponding to UDP are there in first
> place
> in my /etc/services file. That is how it was when I installed the system.
Shouldn't make any difference whether or not the udp lines are in the
services file.
> -----Original Message-----
> From: 'Darrell A Escola' [mailto:darrell@descola.net]
> Sent: Thursday, December 06, 2001 6:12 PM
> To: MEHTA,HIREN (A-SanJose,ex1)
> Cc: linux-net@vger.kernel.org
> Subject: Re: setting up ftpd/telnetd on my linux machine
>
>
> Just to verify - your xinetd is listening on ports 21 and 23?
> If it is not listening on these ports, it has no way of knowing that it
> should fork telnetd or wu-ftpd.
>
> I am not real familiar with xinetd (I run Debian, using inetd), but it
> sounds like it may not be listening on the proper ports, or the
> configuration files for wu-ftpd and telnetd may not be set up to allow
> access.
>
> Are there ftpusers, hosts.allow, hosts.deny files that need to be
> configured?
>
> Darrell
>
> On Thu, Dec 06, 2001 at 06:56:13PM -0700, MEHTA,HIREN (A-SanJose,ex1) wrote:
>
>>I did ran strace on my xinetd process which was listening on the ports.
>>My understanding is that when somebody connects using ftp, xinetd will
>>do some more stuff and again start listening on the ports. But in my case,
>>when I started ftp/telnet from windows client to the linux machine, the
>>xinetd
>>was still sitting on listening on the ports. So I guess, it is not even
>>forking
>>the in.wuftpd/telnetd processes. The configuration files for wuftpd will
>>
> be
>
>>read by wuftpd when it is started. But in my case, wuftpd itself does not
>>seem be starting.
>>
>>When I did ftp from the same machine, it worked fine without any problem
>>and I could see xinetd getting out of listening and finally forking
>>in.wuftpd.
>>
>>This is my local net. How do I verify whether there is any firewall or not
>>
> ?
>
>>Somehow it looks like xinetd does not come to know that some client is
>>trying
>>to start a session. Any explainations ?
>>
>>Hiren Mehta
>>Software Design Engineer
>>Agilent Technologies
>>
>>
>>>From: Darrell A Escola [mailto:darrell@descola.net]
>>>Sent: Thursday, December 06, 2001 5:41 PM
>>>
>>>The standard port for telnet is 23, for ftp is 21 - your windows clients
>>>
> are
>
>>>most likely talking to these ports.
>>>
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>
--
Noah Romer
Driver Developer, CM gopher and Linux Whipping Boy
Storage Components Firmware
LSI Logic Corp.
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