🚀 go-pugleaf

M.G. wrote:

> witam
> w mojej sieci wydawalo sie ze uslugodaca ma problemy z wydajnoscia
> serwera. Jednak tlumaczyl to wirusem, ktory zmienia MAC zaatakowanego
> komputera, podszywajac sie np pod moj mac. Nastepnie caly ruch ja-brama
> oparty na switchach kierowany jest do niego, jego karta nastepnie wysyla
> pakiety do mnie, zeby wszystko wygladalo OK.
> Jaki jest objaw: pingi bramy wachaja sie od 50 do 2000 ms. Teraz zrobilem
> proby zmieniajac MAC swojej karty, przez kilkadziesiat sekund pingi sa
> <1ms potem znowu wskakuja na setki ms.
> Jak zabezpieczyc sie przed tego typu wlamaniem pomijajc PPPoE. Na razie
> provider nie chce tego wprowadzac ze wzgledu na uslugi w sieci likalnej 

1) switche zarządzalne przypisujące numer MAC do portu.
2) prowider z jajami, który umie wyśledzić konkretną wtyczkę - i co
najważniejsze - ją wyjąć.

-- 
Pozdrawiam
Lemat

M.G. pisze:
> witam
> Jak zabezpieczyc sie przed tego typu wlamaniem pomijajc PPPoE. Na razie 
w zwykłej sieci opartej o switche jedyne wyjście to odseparować klientów 
od siebie czyli switche zarządzalne z filtrowaniem MAC  + ewentualnie 
podział sieci na segmenty. Arpwatch też pomaga, jak widzisz że jakiś 
klient kombinuje to wiesz gdzie szukać.
Wystarczy że ktoś wpisze sobie ręcznie IP bramy jako swój IP i masz 
przesrane.

M.G. wrote:
> witam
> w mojej sieci wydawalo sie ze uslugodaca ma problemy z wydajnoscia serwera. 
> Jednak tlumaczyl to wirusem, ktory zmienia MAC zaatakowanego komputera, 
> podszywajac sie np pod moj mac. Nastepnie caly ruch ja-brama oparty na 
> switchach kierowany jest do niego, jego karta nastepnie wysyla pakiety do 
> mnie, zeby wszystko wygladalo OK.
Wpisz sobie mac bramy jako static. Zapuść sniffera i zobacz jaki
konkretnie pakiety wysyła.

ignorant of its nature. As we
know it to be false that numbers are finite, it is therefore true that there
is an infinity in number. But we do not know what it is. It is false that it
is even, it is false that it is odd; for the addition of a unit can make no
change in its nature. Yet it is a number, and every number is odd or even
(this is certainly true of every finite number). So we may well know that
there is a God without knowing what He is. Is there not one substantial
truth, seeing there are so many things which are not the truth itself?

We know then the existence and nature of the finite, because we also are
finite and have extension. We know the existence of the infinite and are
ignorant of its nature, because it has extension like us, but not limits
like us. But we know neither the existence nor the nature of God, because He
has neither extension nor limits.

But by faith we know His existence; in glory we shall know His nature. Now,
I have already shown that we may well know the existence of a thing, without
knowing its nature.

Let us now speak according to natural lights.

If there is a God, He is infinitely incomprehensible, since, having neither
parts nor limits, He has no affinity to us. We are then incapable of knowing
either what He is or if He is. This being so, who will dare to undertake the
decision of the question? Not we, who have no affinity to Him.

Who then will blame Christians for not being able to give a reason for their
belief, since they profess a religion for which they cannot give a reason?
They declare, in expounding it to the world, that it is a foolishness,
stultitiam;28 and then you complain that they do not prove it! If they
pr

furnace is now hot, ready to
receive them; the flames do now rage and glow. The glittering sword is
whet, and held over them, and the pit hath opened its mouth under them. 


The devil stands ready to fall upon them, and seize them as his own, at
what moment God shall permit him. They belong to him; he has their souls
in his possession, and under his dominion. The scripture represents them
as his goods, Luke 11:12. The devils watch them; they are ever by them
at their right hand; they stand waiting for them, like greedy hungry
lions that see their prey, and expect to have it, but are for the
present kept back. If God should withdraw his hand, by which they are
restrained, they would in one moment fly upon their poor souls. The old
serpent is gaping for them; hell opens its mouth wide to receive them;
and if God should permit it, they would be hastily swallowed up and
lost. 

There are in the souls of wicked men those hellish principles reigning,
that would presently kindle and flame out into hell fire, if it were not
for 

this discourse
in hell? And it would be a wonder, if some that are now present should
not be in hell in a very short time, even before this year is out. And
it would be no wonder if some persons, that now sit here, in some seats
of this meeting-house, in health, quiet and secure, should be there
before tomorrow morning. Those of you that finally continue in a natural
condition, that shall keep out of hell longest will be there in a little
time! your damnation does not slumber; it will come swiftly, and, in all
probability, very suddenly upon many of you. You have reason to wonder
that you are not already in hell. It is doubtless the case of some whom
you have seen and known, that never deserved hell more than you, and
that heretofore appeared as likely to have been now alive as you. Their
case is past all hope; they are crying in extreme misery and perfect
despair; but here you are in the land of the living and in the house of
God, and have an opportunity to obtain salvation. What would not those
poor damned hopeless souls give for one day's opportunity such as you
now enjoy! And now you have an extraordinary opportunity, a day wherein
Christ has thrown the door of mercy wide open, and stands in calling and
crying with a loud voice to poor sinners; a day wherein many are
flocking to him, and pressing into the kingdom of God. Many are daily
coming from the east, west, north and south; many that were very lately
in the same miserable condition that you are in, are now in a happy
state, with their hearts filled with love to him who has loved them, and
washed them from their sins in his own blood, and rejoicing in hope of
the glory of God. How awfu

infinite like nature.

If we are well informed, we understand that, as nature has graven her image
and that of her Author on all things, they almost all partake of her double
infinity. Thus we see that all the sciences are infinite in the extent of
their researches. For who doubts that geometry, for instance, has an
infinite infinity of problems to solve? They are also infinite in the
multitude and fineness of their premises; for it is clear that those which
are put forward as ultimate are not self-supporting, but are based on others
which, again having others for their support, do not permit of finality. But
we represent some as ultimate for reason, in the same way as in regard to
material objects we call that an indivisible point beyond which our senses
can no longer perceive anything, although by its nature it is infinitely
divisible.

Of these two Infinites of science, that of greatness is the most palpable,
and hence a few persons have pretended to know all things. "I will speak of
the whole," said Democritus.

But the infinitely little is the least obvious. Philosophers have much
oftener claimed to have reached it, and it is here they have all stumbled.
This has given rise to such common titles as First Principles, Principles of
Philosophy, and the like, as ostentatious