[rhn-users] Urgent-PLease help

Rama Chandrasekaran rama03 at sbcglobal.net
Wed Apr 14 16:07:16 UTC 2004 

Dear Sir
We are running some file transfer experiments using
FTP/TCP/IP/PPP between two Linux PCs (running Red-Hat
Linux 7.3 with kernel 2.4.18-3).  We are trying to
change the PPP MTU size (using "ifconfig ppp0 mtu
xxx"). The situation is described below: 

(1) When we change the MTU to a size which is smaller
than the default size 1500 bytes, it works using the
new size, which can be observed from SYN, SYN-ACK
exchange and TSG plots.

(2) When we change the MTU to a size larger than the
default 1500 bytes  (such as 4352 bytes), the protocol
still sends data using the default size of 1500
instead of the updated larger size.

I think the problem is that segments/packets delivered
to PPP are limited to less than or equal to 1500
bytes. So even though we enlarged PPP MTU, the PDU
delivered to PPP by TCP/IP is not larger than 1500
bytes. 

Could anyone advise us how we can adjust the size of
TCP/IP segments larger than the default size of 1500
bytes so that the transmitted PPP frame size is
larger?

Any help will be greatly appreciated.






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Today's Topics:

1. Fwd: Re: [rhn-users] email AYUDA AYUDAAAAA (Milon G. Logan)
2. rpc.stadt gethostbyname error (rick)
3. Re: rpc.stadt gethostbyname error (jludwig)
4. Re: rpc.stadt gethostbyname error (jludwig)
5. Re: rpc.stadt gethostbyname error (jludwig)
6. Re: rpc.stadt gethostbyname error (jludwig)
7. Help (Alejandro Lemus)
8. Richard Thomas/Retaillogic/NISABA is out of the office.
['Virus checked"] (richard.thomas at retail-logic.com)


----------------------------------------------------------------------

Message: 1
Date: Tue, 13 Apr 2004 09:55:24 -0700
From: "Milon G. Logan" 

Subject: Fwd: Re: [rhn-users] email AYUDA AYUDAAAAA
To: rhn-users at redhat.com
Message-ID:
<6.0.3.0.0.20040413095255.01b99e90 at pop.sbcglobal.yahoo.com>
Content-Type: text/plain; charset="iso-8859-1"; format=flowed


>X-Apparently-To: provri at sbcglobal.net via web80313.mail.yahoo.com; Tue, 13 
>Apr 2004 07:02:19 -0700
>X-Originating-IP: [209.132.177.30]
>Date: Tue, 13 Apr 2004 08:02:15 -0600
>From: Robert Potts 
>User-Agent: Mozilla/5.0 (X11; U; Linux i586; en-US; rv:1.0.1) Gecko/20020830
>X-Accept-Language: en-us, en
>To: Red Hat Network Users List 
>Subject: Re: [rhn-users] email AYUDA AYUDAAAAA
>X-Spam-Level:
>X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on mail6.nmia.com
>X-Spam-Status: No, hits=0.1 required=200.0 tests=EXCUSE_16 autolearn=no
> version=2.63
>X-RedHat-Spam-Score: 2.817 **
>X-loop: rhn-users at redhat.com
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>Reply-To: Red Hat Network Users List 
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>Sender: rhn-users-bounces at redhat.com
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>creo que podria encontrar toda la informacion aqui:
>http://www.netfilter.org/documentation/HOWTO/es/networking-concepts-HOWTO.html
>y aqui:
>http://www.netfilter.org/documentation/HOWTO/es/packet-filtering-HOWTO.html
>los dos en espanol
>buen suerte
>-Robert
>
>Brian T. Brunner wrote:
>
>>(Tratare a traducir)/(I will try to translate)
>>
>>Hello, I need help
>>
>>My proxy is RH9 linux squid, with 2 ethernet cards,
>>one to internet and the other to my LAN.
>>All my users navigate but upon attempting to download or send mail with 
>>outlook they are not permitted,
>>
>>What do I do in order to give them this service?
>>
>>(opinion del traductor: este mensaje debe enviarse por la lista de 
>>'shrike')/(translator's opinion this should go to the shrike list not the 
>>RHN list)
>>shrike-list at redhat.com
>>(es que "shrike" es el nombre do RHL9.0)
>>
>>Brian Brunner
>>brian.t.brunner at gai-tronics.com
>>(610)796-5838
>>
>>
>>
>>>>>alejandro_lemus2003 at yahoo.com 04/12/04 10:08PM >>>
>>>>>
>>hola, necesito ayuda
>>Mi proxy es linux RH9.0 squid, con dos ethernet
>>cards,una a internet y otra a mi LAN, todos mis
>>usuarios navegan pero al querer bajar o enviar correo
>>con outlook no les permite, que hago para darles este servicio?????
>>
>>_________________________________________________________
>>Do You Yahoo!?
>>Información de Estados Unidos y América Latina, en Yahoo! Noticias.
>>Visítanos en http://noticias.espanol.yahoo.com
>>
>>_______________________________________________
>>rhn-users mailing list
>>rhn-users at redhat.com https://www.redhat.com/mailman/listinfo/rhn-users
>>
>>*******************************************************************
>>This email and any files transmitted with it are confidential and
>>intended solely for the use of the individual or entity to whom they
>>are addressed. If you have received this email in error please notify
>>the system manager.
>>
>>This footnote also confirms that this email message has been swept
>>for the presence of computer viruses.
>>
>>www.hubbell.com - Hubbell Incorporated
>>
>>
>>_______________________________________________
>>rhn-users mailing list
>>rhn-users at redhat.com
>>https://www.redhat.com/mailman/listinfo/rhn-users
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>>.
>>
>>
>
>
>
>
>_______________________________________________
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Note confidentiality paragraph. Sent to me in error. -mgl 




------------------------------

Message: 2
Date: Tue, 13 Apr 2004 12:08:46 -0700
From: "rick" 
Subject: [rhn-users] rpc.stadt gethostbyname error
To: 
Message-ID: <36a001c4218a$c11e5310$1400a8c0 at nationsloan.local>
Content-Type: text/plain; charset="iso-8859-1"

I've been seeing this kind of error several times lately. Looks like a
buffer overflow attempt. Should I be concerned about this and turn some
service off or add some rules to my firewall to prevent this kind of
activity?

Apr 12 23:31:51 spark rpc.statd[662]: gethostbyname error for
^X÷ÿ¿^X÷ÿ¿^Z÷ÿ¿^Z÷ÿ¿%8x%8x%8x%8x%8x%8x%8x%8x%8x%62716x%hn%51859x%hn\220\220\
220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
220\220\220\220\220\220\220\220\220\220\220\220\220\220

Thank You,

Rick Whitworth
Merged Media




------------------------------

Message: 3
Date: Tue, 13 Apr 2004 16:31:40 -0400
From: jludwig 
Subject: Re: [rhn-users] rpc.stadt gethostbyname error
To: Red Hat Network Users List 
Message-ID: <1081888299.3203.144.camel at jMOD.home>
Content-Type: text/plain; charset=UTF-8

On Tue, 2004-04-13 at 15:08, rick wrote:
> I've been seeing this kind of error several times lately. Looks like a
> buffer overflow attempt. Should I be concerned about this and turn some
> service off or add some rules to my firewall to prevent this kind of
> activity?
> 
> Apr 12 23:31:51 spark rpc.statd[662]: gethostbyname error for
> ^X÷ÿ¿^X÷ÿ¿^Z÷ÿ¿^Z÷ÿ¿%8x%8x%8x%8x%8x%8x%8x%8x%8x%62716x%hn%51859x%hn\220\220\
> 220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
> 220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
> 220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
> 220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
> 220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
> 220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
> 220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
> 220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
> 220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
> 220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
> 220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
> 220\220\220\220\220\220\220\220\220\220\220\220\220\220
> 
> Thank You,
> 
> Rick Whitworth
> Merged Media
> 
> 
> _______________________________________________
> rhn-users mailing list
> rhn-users at redhat.com
> https://www.redhat.com/mailman/listinfo/rhn-users

dec hex binary 
220 dc 0011-0010
0011 Would be a move instruction for x86. I'm trying to locate IBM
opcode now.

-- 
jludwig 




------------------------------

Message: 4
Date: Tue, 13 Apr 2004 16:46:33 -0400
From: jludwig 
Subject: Re: [rhn-users] rpc.stadt gethostbyname error
To: Red Hat Network Users List 
Message-ID: <1081889193.3203.146.camel at jMOD.home>
Content-Type: text/plain; charset=UTF-8

On Tue, 2004-04-13 at 16:31, jludwig wrote:
> On Tue, 2004-04-13 at 15:08, rick wrote:
> > I've been seeing this kind of error several times lately. Looks like a
> > buffer overflow attempt. Should I be concerned about this and turn some
> > service off or add some rules to my firewall to prevent this kind of
> > activity?
> > 
> > Apr 12 23:31:51 spark rpc.statd[662]: gethostbyname error for
> > ^X÷ÿ¿^X÷ÿ¿^Z÷ÿ¿^Z÷ÿ¿%8x%8x%8x%8x%8x%8x%8x%8x%8x%62716x%hn%51859x%hn\220\220\
> > 220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
> > 220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
> > 220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
> > 220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
> > 220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
> > 220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
> > 220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
> > 220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
> > 220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
> > 220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
> > 220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
> > 220\220\220\220\220\220\220\220\220\220\220\220\220\220
> > 
> > Thank You,
> > 
> > Rick Whitworth
> > Merged Media
> > 
> > 
> > _______________________________________________
> > rhn-users mailing list
> > rhn-users at redhat.com
> > https://www.redhat.com/mailman/listinfo/rhn-users
> 
> dec hex binary 
> 220 dc 0011-0010
> 0011 Would be a move instruction for x86. I'm trying to locate IBM
> opcode now.


I misread the table, sorry need to get back to 'basics'.

-- 
jludwig 




------------------------------

Message: 5
Date: Tue, 13 Apr 2004 17:10:05 -0400
From: jludwig 
Subject: Re: [rhn-users] rpc.stadt gethostbyname error
To: Red Hat Network Users List 
Message-ID: <1081890604.3203.164.camel at jMOD.home>
Content-Type: text/plain; charset=UTF-8


> On Tue, 2004-04-13 at 15:08, rick wrote:
> > I've been seeing this kind of error several times lately.> 
> > Apr 12 23:31:51 spark rpc.statd[662]: gethostbyname error for
> > ^X÷ÿ¿^X÷ÿ¿^Z÷ÿ¿^Z÷ÿ¿%8x%8x%8x%8x%8x%8x%8x%8x%8x%62716x%hn%51859x%hn\220\220\
> > 220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
> > 220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
> > 220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
> > 220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
> > 220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
> > 220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
> > 220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
> > 220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
> > 220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
> > 220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
> > 220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\220\
> > 220\220\220\220\220\220\220\220\220\220\220\220\220\220


Are using intel x86 architecure? If not which one 

-- 
jludwig 




------------------------------

Message: 6
Date: Tue, 13 Apr 2004 17:44:14 -0400
From: jludwig 
Subject: Re: [rhn-users] rpc.stadt gethostbyname error
To: Red Hat Network Users List 
Message-ID: <1081892653.3203.171.camel at jMOD.home>
Content-Type: text/plain

Some time ago I let my machine code documents go to the paper recyclers
house. It is turning out to be a bad mistake since the opcodes are no
longer tabled allowing for very quick referance.

I have played with this for a while with khex shifting bits and the
like, and I don't like the looks of this data. 
-- 
jludwig 




------------------------------

Message: 7
Date: Tue, 13 Apr 2004 18:59:09 -0500 (CDT)
From: Alejandro Lemus 
Subject: [rhn-users] Help
To: Red Hat Network Users List 
Message-ID: <20040413235909.1567.qmail at web40104.mail.yahoo.com>
Content-Type: text/plain; charset=iso-8859-1

--- nick at fita.org escribió: > Querido colega,
> 
> Tiene que iniciar el servicio sendmail en su puerta
> al internet.
> 
> Ciao,
> Nick
> 
> Quoting Alejandro Lemus
> :
> 
> > hola, necesito ayuda
> > Mi proxy es linux RH9.0 squid, con dos ethernet
> > cards,una a internet y otra a mi LAN, todos mis
> > usuarios navegan pero al querer bajar o enviar
> correo
> > con outlook no les permite, que hago para darles
> este servicio?????
> > 
> >
>
_________________________________________________________
> > Do You Yahoo!?
> > Información de Estados Unidos y América Latina, en
> Yahoo! Noticias.
> > Visítanos en http://noticias.espanol.yahoo.com
> > 
> > 
> > _______________________________________________
> > rhn-users mailing list
> > rhn-users at redhat.com
> > https://www.redhat.com/mailman/listinfo/rhn-users
> > 
> 
> 
> 
> 
> _______________________________________________
> rhn-users mailing list
> rhn-users at redhat.com
> https://www.redhat.com/mailman/listinfo/rhn-users 

=====
Ing. Alejandro Lemus G.
División de Ingenieria y Proyectos Especiales
Radio Taxi Aeropuerto S.A. - Beeperweb
Avenida de las Américas # 51 - 39 Bogotá - Colombia
Tel: 571-4470694 / 571-4202600 Ext. 260 Fax: 571-2624070
email: alejandro_lemus2003 at yahoo.com 
Pager: 100012 at beeperweb.com.co

_________________________________________________________
Do You Yahoo!?
Información de Estados Unidos y América Latina, en Yahoo! Noticias.
Visítanos en http://noticias.espanol.yahoo.com




------------------------------

Message: 8
Date: Wed, 14 Apr 2004 01:01:54 +0100
From: richard.thomas at retail-logic.com
Subject: [rhn-users] Richard Thomas/Retaillogic/NISABA is out of the
office. ['Virus checked"]
To: Red Hat Network Users List 
Message-ID:

Content-Type: text/plain; charset=us-ascii

I will be out of the office starting 14/04/2004 and will not return until
15/04/2004.

I will respond to your message when I return.
If your email requres attention before I return, please email
support at retail-logic.com

_______________________________________________________________________________
The information transmitted is intended only for the person or entity to
which it is addressed and may contain confidential and/or privileged
material. Statements and opinions expressed in this e-mail may not
represent those of the company. Any review, retransmission, dissemination
or other use of, or taking of any action in reliance upon, this information
by persons or entities other than the intended recipient is prohibited. If
you received this in error, please contact the sender immediately and
delete the material from any computer. This e-mail may be read by an
employee of the company as part of the internal monitoring process and is
therefore not to be considered private by the sender or the recipient.





------------------------------

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