Dizzy ...

xiaoxiao2021-03-06  21

Reboot 14:28:08

Hello, we have a FreeBSD server being attacked by a large number of new DOS attacks. Do you have any good solution?

[D8] 14:29:28

Directly seal IP.

Reboot 14:28:44

IP too much. How to seal?

[D8] 14:30:02

That DOS is not forgery.

Do you determine whether the kind of attack?

Reboot 14:29:14

TCP4 0 0 XX.129.113.155.80 218.22.215.38.64007 FIN_WAIT_2

TCP4 0 0 XX.129.113.155.80 218.22.215.38.64727 FIN_WAIT_2

TCP4 0 0 XX.129.113.155.80 218.22.215.38.64605 FIN_WAIT_2

TCP4 0 0 XX.129.113.155.80 218.22.215.38.64595 FIN_WAIT_2

TCP4 0 0 XX.129.113.155.80 218.22.215.38.64929 FIN_WAIT_2

TCP4 0 0 XX.129.113.155.80 218.0.74.242.60209 FIN_WAIT_2

[D8] 14:30:18

Will it be SYN FLOOD?

Reboot 14:29:37

This is just a small part, probably there are 10 times.

Reboot 14:30:04

What is your attack?

[D8] 14:32:00

A bit like my attack method

You ping one

Those hosts see if they survive

Reboot 14:31:40

Fire

Reboot 14:31:47

It is live.

[D8] 14:33:04

It seems that it is like the way.

It is the 99% of living.

How many broilers have to attack?

[D8] 14:33:22

Is there a hardware firewall?

Reboot 14:32:48

We only have DOS firewall, black hole 600,

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Reboot 14:33:04

You are really harmful

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[D8] 14:35:21

I am not too familiar with hardware.

sorry. Not what I attack.

I didn't publish ready-made tools.

Reboot 14:34:50

Is there any good solution now?

Our is FreeBSD system

[D8] 14:37:53

It seems that the attacker did not improve my code.

You caught what is the junk data he sent.

Then filter according to the signature code. It is not one of the sealing IP.

His broiler will not have a lot more unless he has 1000 broilers.

[D8] 14:53:37

It's really sorry.

Depressed ~~~. Is it good to get a small Japan? Don't use domestic chicken, all domestic servers! please.......

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