Bambanci na zo daga *wane sashi na stack nake amfani da wanda a raje, kuma hakan nai mika yadda kake gano da tsayar da shi. Layer 3/4 attacks suke game da kashing adadi; Layer 7 attacks suke game da costly, requests da suke kama gida-gida.
Bambanci na zo daga *wane sashi na stack nake amfani da wanda a raje, kuma hakan nai mika yadda kake gano da tsayar da shi. Layer 3/4 attacks suke game da kashing adadi; Layer 7 attacks suke game da costly, requests da suke kama gida-gida.
Wadannan suke tuhumar network da transport layers da suke kokarin cika bandwidth ko kashe connection state, ba shine logics na aikace-aikacen naka ba.
Mitigation suke game da samarwa ko tace packets: SYN cookies (saboda server ya tsaya babu state har handshake ya kammala), anycast + scrubbing centers wajen yada da tsabtsi flood a cikin duniya capacity, da upstream/ISP filtering wajen ci jajiya spoofed ko banza packets kafin su isa gida. Packets kansu suke bayyane malformed ko ba su nemi ba, saboda tace ishi mechanical.
Wadannan suke tuhumar application layer (HTTP) tare da requests da suke kama legitime gida.
GET /search?q=..., POST /login) saboda kowane request yana tilar database query, render, ko auth check.Haɗari shine asymmetry: karami request zai iya kashe fiye da query, saboda haka kashi ba ya kashe ki. Kuma saboda kowane request shine daidai tsari, packet filtering ba zai iya gano shi daga ainihi mai aminci ba.
Mitigation dole ya zama mafi wayo fiye da tace: WAF wajen daidaita patterns marasa kyau, rate limiting kowaye IP/user/token, da behavioral analysis (challenge pages, JS/CAPTCHA, fingerprinting) wajen rabuwa robots daga mutane.
Layer 3/4 : detect by VOLUME + protocol anomalies -> filter/absorb packets (cheap to spot)
Layer 7 : detect by BEHAVIOR (looks like real traffic) -> needs request-level intelligence
Ba za ka iya karewa dukansu da kayan gida daya. Scrubbing center nake jajiye 1 Tbps UDP flood zai hanin 50,000-request-per-second HTTP flood, saboda kowane request suke kama ainihi. Masu karami engineers sune suna gano layer na farko, sannan sune isa wajen matching control — packet-level scrubbing da anycast don volumetric attacks, request-level WAF, rate limiting, da behavioral challenges don application floods.