help tentang cfs

[Brian Aditya]

siang teman2 mau nanya,klo dapet email dari cfs kaya
gini kenapa ya ? apa iini serangan ddos atau bagaimana

terima kasih..
Time: Sun Jul 30 1319 2017 +0700
IP: 87.118.116.12 (DE/Germany/tormachine.keymachine.de)
Connections: 148
Blocked: Temporary Block

Connections:
tcp: 87.118.116.12:58400 -> 79.143.183.75:80 (TIME_WAIT)
tcp: 87.118.116.12:58447 -> 79.143.183.75:80 (TIME_WAIT)
tcp: 87.118.116.12:51502 -> 79.143.183.75:80 (TIME_WAIT)
tcp: 87.118.116.12:59695 -> 79.143.183.75:80 (TIME_WAIT)
tcp: 87.118.116.12:43434 -> 79.143.183.75:80 (TIME_WAIT)
tcp: 87.118.116.12:43574 -> 79.143.183.75:80 (TIME_WAIT)
tcp: 87.118.116.12:55709 -> 79.143.183.75:80 (TIME_WAIT)
tcp: 87.118.116.12:50255 -> 79.143.183.75:80 (TIME_WAIT)
tcp: 87.118.116.12:38997 -> 79.143.183.75:80 (TIME_WAIT)
tcp: 87.118.116.12:46404 -> 79.143.183.75:80 (TIME_WAIT)
tcp: 87.118.116.12:52397 -> 79.143.183.75:80 (TIME_WAIT)
tcp: 87.118.116.12:34404 -> 79.143.183.75:80 (TIME_WAIT)
tcp: 87.118.116.12:50503 -> 79.143.183.75:80 (TIME_WAIT)
tcp: 87.118.116.12:57618 -> 79.143.183.75:80 (TIME_WAIT)
tcp: 87.118.116.12:54872 -> 79.143.183.75:80 (TIME_WAIT)
tcp: 87.118.116.12:50723 -> 79.143.183.75:80 (TIME_WAIT)
tcp: 87.118.116.12:50130 -> 79.143.183.75:80 (TIME_WAIT)
tcp: 87.118.116.12:51305 -> 79.143.183.75:80 (TIME_WAIT)
tcp: 87.118.116.12:50967 -> 79.143.183.75:80 (TIME_WAIT)

 

[Bestariweb Hosting]

CFS apa CSF?

itu bruteforce.. karena di CT_LIMIT dikasih angka
jadi, kalau ada koneksi yang melebihi angka di CT_LIMIT maka akan diblock

 

[natanetwork]

kalo dirasa ga bahaya bisa csf nya di set:
CT_SKIP_TIME_WAIT true

 

[alexistdev]

klo boleh tau CT_LIMIT itu baiknya dikasi angka makin besar apa makin kecil ya?

 

[Bestariweb Hosting]

klo boleh tau CT_LIMIT itu baiknya dikasi angka makin besar apa makin kecil ya?

sesuai kebutuhan. makin kecil makin ketat. kalau punya saya diisi 100

 

[dhyhost]

kalau udah terbukti brute force dari IP tak dikenak langsung aja pindahin IPnya dari temporary block ke permanent block hehe