[SunHELP] ping a port
Adam Kropelin
sunhelp at sunhelp.org
Fri Sep 21 09:20:16 CDT 2001
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Heh, AFAIK, it means "As far as I know" (which sometimes isn't all that far.
By the way, are messages from me coming out in HTML or some crap like that?
I admit to using Outlook (I'm at work...) and though I've got the fscking
thing set to plain text in two different places (and messages appear to be
plain when they go out), when it comes back the text is proportional and
smells very non-plain.
--Adam
-----Original Message-----
From: David Baldwin [mailto:dbaldwin at networkinsight.com]
Sent: Friday, September 21, 2001 10:07 AM
To: sunhelp at sunhelp.org
Subject: RE: [SunHELP] ping a port
I had read that and came to that conclusion. But, what on earth does AFAIK
mean? This is the 3rd or 4th time I've seen that.
Dave
-----Original Message-----
From: Adam Kropelin [mailto:Adam.Kropelin at netlinkaccess.com]
Sent: Friday, September 21, 2001 7:05 AM
To: 'sunhelp at sunhelp.org'
Subject: RE: [SunHELP] ping a port
AFAIK, there is no such thing as a port in ICMP. ICMP packets are
demultiplexed by IP based on the value of the protocol field in the IP
header. The network stack is what responds to a PING (really an ICMP echo
request packet), not any particular application.
--Adam
> -----Original Message-----
> From: Thomas Cameron [mailto:archimage at linux-magic.com
<mailto:archimage at linux-magic.com> ]
> Sent: Friday, September 21, 2001 9:35 AM
> To: sunhelp at sunhelp.org
> Subject: Re: [SunHELP] ping a port
>
>
> I don't think ping can hit any port other than the standard
> ICMP port that it queries.
>
> Thomas
> ----- Original Message -----
> From: "David Baldwin" <dbaldwin at networkinsight.com>
> To: <sunhelp at sunhelp.org>
> Sent: Thursday, September 20, 2001 12:55 PM
> Subject: [SunHELP] ping a port
>
>
> > Hi all,
> > I am trying to find out how I can ping an ip through a
> certain port on
> > a firewall. As a test I tried to telnet to the port on the system
> > with "telnet x.x.x.x port#" and it failed. But if I try
> "ping x.x.x.x
> > port#" it goes through. ICMP is allowed on its default
> port but how
> > can I change the port it tries?
> >
> > This is for standard "service alive?" checking.
> >
> > Thanks for any suggestions.
> >
> > Dave Baldwin
> > _______________________________________________
> > SunHELP maillist - SunHELP at sunhelp.org
> > http://www.sunhelp.org/mailman/listinfo/sunhelp
<http://www.sunhelp.org/mailman/listinfo/sunhelp>
> >
>
> _______________________________________________
> SunHELP maillist - SunHELP at sunhelp.org
> http://www.sunhelp.org/mailman/listinfo/sunhel
<http://www.sunhelp.org/mailman/listinfo/sunhel> > p
>
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<DIV><SPAN class=3D665261114-21092001><FONT face=3DArial =
color=3D#0000ff size=3D2>Heh,=20
AFAIK, it means "As far as I know" (which sometimes isn't all that=20
far.</FONT></SPAN></DIV>
<DIV><SPAN class=3D665261114-21092001><FONT face=3DArial =
color=3D#0000ff=20
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D665261114-21092001><FONT face=3DArial =
color=3D#0000ff size=3D2>By the=20
way, are messages from me coming out in HTML or some crap =
like that? I=20
admit to using Outlook (I'm at work...) and though I've got the fscking =
thing=20
set to plain text in two different places (and messages =
appear to be=20
plain when they go out), when it comes back the text is =
proportional and=20
smells very non-plain.</FONT></SPAN></DIV>
<DIV><SPAN class=3D665261114-21092001><FONT face=3DArial =
color=3D#0000ff=20
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D665261114-21092001><FONT face=3DArial =
color=3D#0000ff=20
size=3D2>--Adam</FONT></SPAN></DIV>
<BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px =
solid; MARGIN-RIGHT: 0px">
<DIV></DIV>
<DIV class=3DOutlookMessageHeader lang=3Den-us dir=3Dltr =
align=3Dleft><FONT=20
face=3DTahoma size=3D2>-----Original Message-----<BR><B>From:</B> =
David Baldwin=20
[mailto:dbaldwin at networkinsight.com] <BR><B>Sent:</B> Friday, =
September 21,=20
2001 10:07 AM<BR><B>To:</B> sunhelp at sunhelp.org<BR><B>Subject:</B> =
RE:=20
[SunHELP] ping a port<BR><BR></FONT></DIV>
<DIV class=3DSection1>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">I had read =
that and=20
came to that conclusion.<SPAN style=3D"mso-spacerun: yes"> =
</SPAN>But,=20
what on earth does AFAIK mean? This is the 3<SUP>rd</SUP> or =
4<SUP>th</SUP>=20
time I've seen that.<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">Dave<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=3DMsoNormal style=3D"MARGIN-LEFT: 0.5in"><FONT face=3DTahoma =
size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">-----Original=20
Message-----<BR><B><SPAN style=3D"FONT-WEIGHT: bold">From:</SPAN></B> =
Adam=20
Kropelin [mailto:Adam.Kropelin at netlinkaccess.com] <BR><B><SPAN=20
style=3D"FONT-WEIGHT: bold">Sent:</SPAN></B> Friday, September 21, =
2001 7:05=20
AM<BR><B><SPAN style=3D"FONT-WEIGHT: bold">To:</SPAN></B>=20
'sunhelp at sunhelp.org'<BR><B><SPAN=20
style=3D"FONT-WEIGHT: bold">Subject:</SPAN></B> RE: [SunHELP] ping a=20
port</SPAN></FONT></P>
<P class=3DMsoNormal style=3D"MARGIN-LEFT: 0.5in"><FONT face=3D"Times =
New Roman"=20
size=3D3><SPAN style=3D"FONT-SIZE: =
12pt"><o:p> </o:p></SPAN></FONT></P>
<P style=3D"MARGIN-LEFT: 0.5in"><FONT face=3D"Times New Roman" =
size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt">AFAIK, there is no such thing as a port in =
ICMP. ICMP=20
packets are demultiplexed by IP based on the value of the protocol =
field in=20
the IP header. The network stack is what responds to a PING (really =
an ICMP=20
echo request packet), not any particular=20
application.</SPAN></FONT><o:p></o:p></P>
<P style=3D"MARGIN-LEFT: 0.5in"><FONT face=3D"Times New Roman" =
size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt">--Adam</SPAN></FONT> <o:p></o:p></P>
<P style=3D"MARGIN-LEFT: 0.5in"><FONT face=3D"Times New Roman" =
size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt">> -----Original =
Message-----</SPAN></FONT>=20
<BR><FONT size=3D2><SPAN style=3D"FONT-SIZE: 10pt">> From: Thomas =
Cameron [<A=20
=
href=3D"mailto:archimage at linux-magic.com">mailto:archimage at linux-magic.c=
om</A>]=20
</SPAN></FONT><BR><FONT size=3D2><SPAN style=3D"FONT-SIZE: 10pt">> =
Sent:=20
Friday, September 21, 2001 9:35 AM</SPAN></FONT> <BR><FONT =
size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt">> To: sunhelp at sunhelp.org</SPAN></FONT> =
<BR><FONT=20
size=3D2><SPAN style=3D"FONT-SIZE: 10pt">> Subject: Re: [SunHELP] =
ping a=20
port</SPAN></FONT> <BR><FONT size=3D2><SPAN style=3D"FONT-SIZE: =
10pt">>=20
</SPAN></FONT><BR><FONT size=3D2><SPAN style=3D"FONT-SIZE: 10pt">> =
</SPAN></FONT><BR><FONT size=3D2><SPAN style=3D"FONT-SIZE: 10pt">> =
I don't=20
think ping can hit any port other than the standard =
</SPAN></FONT><BR><FONT=20
size=3D2><SPAN style=3D"FONT-SIZE: 10pt">> ICMP port that it=20
queries.</SPAN></FONT> <BR><FONT size=3D2><SPAN style=3D"FONT-SIZE: =
10pt">>=20
</SPAN></FONT><BR><FONT size=3D2><SPAN style=3D"FONT-SIZE: 10pt">> =
Thomas</SPAN></FONT> <BR><FONT size=3D2><SPAN style=3D"FONT-SIZE: =
10pt">> -----=20
Original Message -----</SPAN></FONT> <BR><FONT size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt">> From: "David Baldwin"=20
<dbaldwin at networkinsight.com></SPAN></FONT> <BR><FONT =
size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt">> To: =
<sunhelp at sunhelp.org></SPAN></FONT>=20
<BR><FONT size=3D2><SPAN style=3D"FONT-SIZE: 10pt">> Sent: =
Thursday, September=20
20, 2001 12:55 PM</SPAN></FONT> <BR><FONT size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt">> Subject: [SunHELP] ping a =
port</SPAN></FONT>=20
<BR><FONT size=3D2><SPAN style=3D"FONT-SIZE: 10pt">> =
</SPAN></FONT><BR><FONT=20
size=3D2><SPAN style=3D"FONT-SIZE: 10pt">> </SPAN></FONT><BR><FONT =
size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt">> > Hi all,</SPAN></FONT> <BR><FONT =
size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt">> > I am trying to find out how I can =
ping an ip=20
through a </SPAN></FONT><BR><FONT size=3D2><SPAN style=3D"FONT-SIZE: =
10pt">>=20
certain port on </SPAN></FONT><BR><FONT size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt">> > a firewall. As a test I =
tried to=20
telnet to the port on the system </SPAN></FONT><BR><FONT =
size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt">> > with "telnet x.x.x.x port#" and =
it=20
failed. But if I try </SPAN></FONT><BR><FONT size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt">> "ping x.x.x.x </SPAN></FONT><BR><FONT=20
size=3D2><SPAN style=3D"FONT-SIZE: 10pt">> > port#" it goes =
through. =20
ICMP is allowed on its default </SPAN></FONT><BR><FONT size=3D2><SPAN =
style=3D"FONT-SIZE: 10pt">> port but how </SPAN></FONT><BR><FONT =
size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt">> > can I change the port it=20
tries?</SPAN></FONT> <BR><FONT size=3D2><SPAN style=3D"FONT-SIZE: =
10pt">>=20
></SPAN></FONT> <BR><FONT size=3D2><SPAN style=3D"FONT-SIZE: =
10pt">> >=20
This is for standard "service alive?" checking.</SPAN></FONT> =
<BR><FONT=20
size=3D2><SPAN style=3D"FONT-SIZE: 10pt">> ></SPAN></FONT> =
<BR><FONT=20
size=3D2><SPAN style=3D"FONT-SIZE: 10pt">> > Thanks for any=20
suggestions.</SPAN></FONT> <BR><FONT size=3D2><SPAN =
style=3D"FONT-SIZE: 10pt">>=20
></SPAN></FONT> <BR><FONT size=3D2><SPAN style=3D"FONT-SIZE: =
10pt">> >=20
Dave Baldwin</SPAN></FONT> <BR><FONT size=3D2><SPAN =
style=3D"FONT-SIZE: 10pt">>=20
> _______________________________________________</SPAN></FONT> =
<BR><FONT=20
size=3D2><SPAN style=3D"FONT-SIZE: 10pt">> > SunHELP =
maillist - =20
SunHELP at sunhelp.org </SPAN></FONT><BR><FONT size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt">> > <A target=3D_blank=20
=
href=3D"http://www.sunhelp.org/mailman/listinfo/sunhelp">http://www.sunh=
elp.org/mailman/listinfo/sunhelp</A></SPAN></FONT>=20
<BR><FONT size=3D2><SPAN style=3D"FONT-SIZE: 10pt">> =
></SPAN></FONT>=20
<BR><FONT size=3D2><SPAN style=3D"FONT-SIZE: 10pt">> =
</SPAN></FONT><BR><FONT=20
size=3D2><SPAN style=3D"FONT-SIZE: 10pt">>=20
_______________________________________________</SPAN></FONT> =
<BR><FONT=20
size=3D2><SPAN style=3D"FONT-SIZE: 10pt">> SunHELP maillist =
- =20
SunHELP at sunhelp.org </SPAN></FONT><BR><FONT size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt">> <A target=3D_blank=20
=
href=3D"http://www.sunhelp.org/mailman/listinfo/sunhel">http://www.sunhe=
lp.org/mailman/listinfo/sunhel</A>>=20
p</SPAN></FONT> <BR><FONT size=3D2><SPAN style=3D"FONT-SIZE: =
10pt">>=20
</SPAN></FONT><o:p></o:p></P></DIV></BLOCKQUOTE></BODY></HTML>
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