Subnet cu?a ma'y trong LAN de^`u la` 255.255.240.0 co`n proxy server la` 1
host tre^n Internet co' IP la` 193.167.144.30 ... Ca'c ma'y de^`u co'
chung 1 gateway la` 10.2.0.1 ... (hi`nh nhu+ la` 1 switch)
Traceroute thu+? nhu+ng no' chi? ba'o la` host unreachable, co' ve? nhu+
la` ne^'u de^'n proxy thi` chi? ca^`n di qua 1 ca'i switch co 10.2.0.1
thui, chu+' kho^ng co' lang thang qua ma'y na`o he^'t ... Hie^.n tu+o+.ng
na`y cu~ng xua^'t hie^.n 1 la^`n o+? ma'y tha(`ng ba.n. No' ba?o 2 tua^`n
sau se~ co' la.i va` do o+? 1 so^' pho`ng 1 so^' du+'a ca^'m cable ma.ng
sai ne^n la`m cho packet to+'i ma'y em la` bi. degrade ru`i discard vi`
nghi~ la` packet hu+ ...
On Tue, 16 Nov 2004, Foo Bar wrote:
> traceroute thu+? coi bi. la.c ddi dda^u.
>
> ti`m cai problem ta.i sao khong dde^'n dduoc ma'y proxy coi bo^.
> interesting ho+n la` ddi ngo~ ta('t qua ma'y cu?a ba.n :)
>
> foobar ddoa'n la` ma'y cua Phong cu`ng subnet cu?a ma'y ma^'y nguoi ba.n.
> foobar ddoa'n la` ma'y proxy khong cu`ng subnet cua Phong va` ba.n
> foobar ddoa'n la` 'iptables -nL' va` 'iptables -nL -t nat' trong ma'y
> cu?a Phong la` clean va` ta^'t ca? default policies la` ACCEPT.
>
> ddu'ng khong ?
>
> -foo
>
> On Tue, 16 Nov 2004 16:42:41 -0600, Larry Nguyen <[EMAIL PROTECTED]> wrote:
> > On 3:18:55 pm 11/16/04 Le Thanh Phong <[EMAIL PROTECTED]> wrote:
> > >
> > > Huhu nhu+ng ma` em co' pha.m to^.i gi` da^u ma` admin la.i la`m the^'
> > > chu+' ...huhuhu :(( ... nhu+ng muh no'i ve^` chuye^.n die^`u chi?nh
> > > route thi` hi`nh nhu+ la impossible. Khi du`ng le^.nh add route nhu+
> > > sau:
> > > # route add -net 0.0.0.0 netmask 0.0.0.0 gw 0.0.0.0
> > > thi Linux la.i ba'o la` invalid, route cho LAn nhu sau:
> > >
> >
> > Di~ nhie^n la` invalid. Hosts va` gateway must be reachable. Ba'c thu+?
> > ping 0.0.0.0 xem no' co' tra? lo+`i gi` kho^ng?
> >
> >
> > > Destination Gateway Genmask
> > > 10.2.0.0 0.0.0.0 255.255.240.0 ....
> > >
> > > Hoac neu chung ta them route cho Internet (0.0.0.0/0) tho^ng qua
> > > gateway la` 0.0.0.0 nhu+ le^.nh tre^n thi` co`n ca'ch na`o kha'c
> > > kho^ng ? Muh sao Linux la.i ba'o la` invalid nhi?
> > >
> > >
> >
> > Ca'i na`y thu' tha^.t mi`nh chu+a bao gio+` la`m. Mi`nh ddo'an co' the^?
> > du`ng iptables to redirect mark packet. Va^'n dde^` o+? cho^~ la` khi ba'c
> > redirect browser de^'n ma'y ngu+o+`i ba.n, ro^`i ngu+o+`i ba.n redirect
> > to+'i proxy server...so far so good. But how the proxy server gonna return
> > the replied packets to *your* machine? Mi`nh nghi~ du`ng --mark va`
> > iproute2. Time to read up iptables ro^`i Phong o+i.
> >
> > Good luck!
> >
> >
> >
> > -Larry
> >
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Phong [Zeronen]
-------------------------------------------------------
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