FW: [Sunhelp] Question
Steel, Nick - TPNWS
NSteel at sempra.com
Wed Aug 4 13:37:30 CDT 1999
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H mm...I get this out of a Linux box....
[root at cbl-snicko /root]# traceroute yahoo.com -i eth1
traceroute: Warning: yahoo.com has multiple addresses; using 204.71.200.245
[root at cbl-snicko /root]# nslookup yahoo.com
Server: rns1.earthlink.net
Address: 207.217.126.81
Non-authoritative answer:
Name: yahoo.com
Addresses: 204.71.200.245, 204.71.200.243
So it looks like it has round robin DNS, but that still doesn't explain the
permission denied. What could control passing ICMP packets besides a proxy
or a firewall?
- N
-----Original Message-----
From: Paul Zimdars [ mailto:pzimdars at zerg.crazyfoo.org
<mailto:pzimdars at zerg.crazyfoo.org> ]
Sent: Wednesday, August 04, 1999 11:35 AM
To: Steel, Nick - TPNWS
Cc: 'sunhelp at ohno.mrbill.net'
Subject: RE: [Sunhelp] Question
Can not be round robin DNS. Because it will still just grab the first ip
of the list and traceroute to it. I can traceroute to it from any other
box.
Paul
''~``
( o o )
+------------------.oooO--(_)--Oooo.------------------+
|Paul Zimdars (909)496-6040|
|(909)496-6040 .oooO www.zimcity.net|
| ( ) Oooo. |
+---------------------\ (----( )--------------------+
_) ) /
(_/
On Wed, 4 Aug 1999, Steel, Nick - TPNWS wrote:
> I don't think there's much you can fix.
>
> Yahoo uses a roundrobin DNS to spread the load over multiple servers, so
> every time you do a lookup, you get a different IP address.
>
> As for checksums, I dunno what that means, hopefully someone with a bit
> better insight into this could provide some info?
>
> The permission denied error is probably due to yahoo blocking icmp
packets.
>
> In short, nothing you can control....
>
> - N
>
>
> -----Original Message-----
> From: Paul Zimdars [ mailto:pzimdars at zerg.crazyfoo.org
<mailto:pzimdars at zerg.crazyfoo.org> ]
> Sent: Tuesday, August 03, 1999 11:17 PM
> To: sunhelp at ohno.mrbill.net
> Subject: [Sunhelp] Question
>
>
> I get this when I try to run traceroute..
> I think it happened because I ran aset -l med
> and it changed everything.
>
> Below:
> [pzimdars at paul pzimdars]$ traceroute yahoo.com
> traceroute: Warning: ckecksums disabled
> traceroute: Warning: yahoo.com has multiple addresses; using
> 204.71.200.245
> traceroute: icmp socket: Permission denied
>
> How do I fix that by using super user?
>
> What does it all exactly mean?
>
> Paul Zimdars
>
>
>
> ''~``
> ( o o )
> +------------------.oooO--(_)--Oooo.------------------+
> |Paul Zimdars (909)496-6040|
> |(909)496-6040 .oooO www.zimcity.net|
> | ( ) Oooo. |
> +---------------------\ (----( )--------------------+
> _) ) /
> (_/
>
>
> _______________________________________________
> SunHELP maillist - SunHELP at sunhelp.org
> http://www.sunhelp.org/mailman/listinfo/sunhelp
<http://www.sunhelp.org/mailman/listinfo/sunhelp>
>
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<META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; =
charset=3Diso-8859-1">
<TITLE>RE: [Sunhelp] Question</TITLE>
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<P><FONT size=3D2><SPAN class=3D320544718-04081999><FONT =
color=3D#0000ff face=3DArial=20
size=3D2> H </FONT></SPAN>mm...I get this out of a Linux =
box....</FONT> </P>
<P><FONT size=3D2>[root at cbl-snicko /root]# traceroute yahoo.com -i =
eth1</FONT>=20
<BR><FONT size=3D2>traceroute: Warning: yahoo.com has multiple =
addresses; using=20
204.71.200.245</FONT> </P>
<P><FONT size=3D2>[root at cbl-snicko /root]# nslookup yahoo.com</FONT> =
<BR><FONT=20
size=3D2>Server: rns1.earthlink.net</FONT> <BR><FONT =
size=3D2>Address: =20
207.217.126.81</FONT> </P>
<P><FONT size=3D2>Non-authoritative answer:</FONT> <BR><FONT=20
size=3D2>Name: yahoo.com</FONT> <BR><FONT=20
size=3D2>Addresses: 204.71.200.245, 204.71.200.243</FONT> </P>
<P><FONT size=3D2>So it looks like it has round robin DNS, but that =
still doesn't=20
explain the permission denied. What could control passing ICMP packets =
besides a=20
proxy or a firewall?</FONT></P>
<P><FONT size=3D2>- N</FONT> </P><BR>
<P><FONT size=3D2>-----Original Message-----</FONT> <BR><FONT =
size=3D2>From: Paul=20
Zimdars [<A=20
href=3D"mailto:pzimdars at zerg.crazyfoo.org">mailto:pzimdars at zerg.crazyfoo=
.org</A>]</FONT>=20
<BR><FONT size=3D2>Sent: Wednesday, August 04, 1999 11:35 AM</FONT> =
<BR><FONT=20
size=3D2>To: Steel, Nick - TPNWS</FONT> <BR><FONT size=3D2>Cc:=20
'sunhelp at ohno.mrbill.net'</FONT> <BR><FONT size=3D2>Subject: RE: =
[Sunhelp]=20
Question</FONT> </P><BR>
<P><FONT size=3D2>Can not be round robin DNS. Because it will still =
just grab the=20
first ip</FONT> <BR><FONT size=3D2>of the list and traceroute to it. I =
can=20
traceroute to it from any other</FONT> <BR><FONT size=3D2>box.</FONT> =
</P>
<P><FONT size=3D2>Paul</FONT> </P><BR>
<P><FONT=20
size=3D2> &nb=
sp; &nb=
sp; =20
''~``</FONT> <BR><FONT=20
size=3D2> &nb=
sp; &nb=
sp;=20
( o o )</FONT> <BR><FONT=20
size=3D2>+------------------.oooO--(_)--Oooo.------------------+</FONT> =
<BR><FONT=20
size=3D2>|Paul=20
Zimdars  =
;  =
; =20
(909)496-6040|</FONT> <BR><FONT=20
size=3D2>|(909)496-6040 =20
.oooO =
=20
www.zimcity.net|</FONT> <BR><FONT=20
size=3D2>| &n=
bsp; =20
( ) =20
Oooo. &=
nbsp; =20
|</FONT> <BR><FONT size=3D2>+---------------------\ (----( =20
)--------------------+</FONT> <BR><FONT=20
size=3D2> &nb=
sp; =20
_) ) /</FONT> <BR><FONT=20
size=3D2> &nb=
sp; &nb=
sp; =20
(_/</FONT> </P>
<P><FONT size=3D2>On Wed, 4 Aug 1999, Steel, Nick - TPNWS wrote:</FONT> =
</P>
<P><FONT size=3D2>> I don't think there's much you can fix. =
</FONT><BR><FONT=20
size=3D2>> </FONT><BR><FONT size=3D2>> Yahoo uses a roundrobin =
DNS to spread=20
the load over multiple servers, so</FONT> <BR><FONT size=3D2>> every =
time you=20
do a lookup, you get a different IP address. </FONT><BR><FONT =
size=3D2>>=20
</FONT><BR><FONT size=3D2>> As for checksums, I dunno what that =
means,=20
hopefully someone with a bit</FONT> <BR><FONT size=3D2>> better =
insight into=20
this could provide some info?</FONT> <BR><FONT size=3D2>> =
</FONT><BR><FONT=20
size=3D2>> The permission denied error is probably due to yahoo =
blocking icmp=20
packets. </FONT><BR><FONT size=3D2>> </FONT><BR><FONT size=3D2>> =
In short,=20
nothing you can control....</FONT> <BR><FONT size=3D2>> =
</FONT><BR><FONT=20
size=3D2>> - N</FONT> <BR><FONT size=3D2>> </FONT><BR><FONT =
size=3D2>>=20
</FONT><BR><FONT size=3D2>> -----Original Message-----</FONT> =
<BR><FONT=20
size=3D2>> From: Paul Zimdars [<A=20
href=3D"mailto:pzimdars at zerg.crazyfoo.org">mailto:pzimdars at zerg.crazyfoo=
.org</A>]</FONT>=20
<BR><FONT size=3D2>> Sent: Tuesday, August 03, 1999 11:17 PM</FONT> =
<BR><FONT=20
size=3D2>> To: sunhelp at ohno.mrbill.net</FONT> <BR><FONT =
size=3D2>> Subject:=20
[Sunhelp] Question</FONT> <BR><FONT size=3D2>> </FONT><BR><FONT =
size=3D2>>=20
</FONT><BR><FONT size=3D2>> I get this when I try to run =
traceroute..</FONT>=20
<BR><FONT size=3D2>> I think it happened because I ran aset -l =
med</FONT>=20
<BR><FONT size=3D2>> and it changed everything.</FONT> <BR><FONT =
size=3D2>>=20
</FONT><BR><FONT size=3D2>> Below:</FONT> <BR><FONT size=3D2>> =
[pzimdars at paul=20
pzimdars]$ traceroute yahoo.com</FONT> <BR><FONT size=3D2>> =
traceroute:=20
Warning: ckecksums disabled</FONT> <BR><FONT size=3D2>> traceroute: =
Warning:=20
yahoo.com has multiple addresses; using</FONT> <BR><FONT size=3D2>>=20
204.71.200.245</FONT> <BR><FONT size=3D2>> traceroute: icmp socket: =
Permission=20
denied</FONT> <BR><FONT size=3D2>> </FONT><BR><FONT size=3D2>> =
How do I fix=20
that by using super user?</FONT> <BR><FONT size=3D2>> =
</FONT><BR><FONT=20
size=3D2>> What does it all exactly mean?</FONT> <BR><FONT =
size=3D2>>=20
</FONT><BR><FONT size=3D2>> Paul Zimdars</FONT> <BR><FONT =
size=3D2>>=20
</FONT><BR><FONT size=3D2>> </FONT><BR><FONT size=3D2>> =
</FONT><BR><FONT=20
size=3D2>>  =
;  =
; =20
''~``</FONT> <BR><FONT=20
size=3D2>>  =
;  =
; =20
( o o )</FONT> <BR><FONT size=3D2>>=20
+------------------.oooO--(_)--Oooo.------------------+</FONT> =
<BR><FONT=20
size=3D2>> |Paul=20
Zimdars  =
;  =
; =20
(909)496-6040|</FONT> <BR><FONT size=3D2>>=20
|(909)496-6040 =20
.oooO =
=20
www.zimcity.net|</FONT> <BR><FONT size=3D2>>=20
|  =
; =20
( ) =20
Oooo. &=
nbsp; =20
|</FONT> <BR><FONT size=3D2>> +---------------------\ =
(----( =20
)--------------------+</FONT> <BR><FONT=20
size=3D2>>  =
;  =
; =20
_) ) /</FONT> <BR><FONT=20
size=3D2>>  =
;  =
; =20
(_/</FONT> <BR><FONT size=3D2>> </FONT><BR><FONT size=3D2>> =
</FONT><BR><FONT=20
size=3D2>> _______________________________________________</FONT> =
<BR><FONT=20
size=3D2>> SunHELP maillist - SunHELP at sunhelp.org</FONT> =
<BR><FONT=20
size=3D2>> <A =
href=3D"http://www.sunhelp.org/mailman/listinfo/sunhelp"=20
target=3D_blank>http://www.sunhelp.org/mailman/listinfo/sunhelp</A></FON=
T>=20
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