Zvose Admins uye Hackers Inogona Kutora Network Traffic
A network sniffer inonzwika chete; software tool iyo inotarisa, kana inobvisa iyo data inoyerera pamusoro pekombiyuta network links munguva chaiyo. Inogona kunge iri yega-ine software yeprogram kana dhidhiyo ye hardware ine software yakakodzera kana firmware.
Network sniffers inogona kutora zvinyorwa zvinyorwa zve data kunze kwekudzorera kana kuigadzirisa. Mamwe mavhiri anoshanda chete neTCP / IP packets, asi zvishandiso zvakanyanyisa zvinogona kushanda pamwe nemamwe maitiro emitambo uye pamatanho maduku, kusanganisira Ethernet mafaira.
Makore apfuura, sniffers dzakanga dziri zvishandisi zvinoshandiswa chete nevanyanzvi vekugadzira injini. Mazuva ano, kunyange zvakadaro, nemapurogiramu epurogiramu anowanikwa pasina rusununguko pawebhu, anowanzonziwo nevanotengesa internet uye vanhu vanongoda kuziva nezvekubatanidza.
Cherechedza: Network sniffers dzimwe nguva inonzi inonzi probes network, wireless sniffers, Ethernet sniffers, packet sniffers, packet analyzers, kana kungosvinura chete.
Ipi Packet Analyzers Inoshandiswa
Pane zvakawanda zvakakosha zvekushandiswa kwepakete sniffers asi dzakawanda zvekuongorora zvinyorwa hazvizivikanise pakati pechikonzero chakanaka uye chakaipa, chinowanzo. Mune mamwe mazwi, akawanda mapepa sniffers anogona kushandiswa zvisina kufanira nomunhu mumwechete uye nezvikonzero zvakakodzera nemumwe.
Purogiramu inogona kutora mapepawedi, semuenzaniso, inogona kushandiswa nehupiti asi chigadziro chimwe chete chinogona kushandiswa ne network networkator yekuwana network network sezvakawanikwa bandwidth .
A sniffer inogonawo kuva yakakosha kuongororeka firewall kana web filters, kana kuti kutambudza ukama hwevabereki / server.
Network Sniffer Tools
Wireshark (yaimbozivikanwa seEthereal) inozivikanwa zvikuru senyika inonyanyozivikanwa mumutambo sniffer. Iko kusununguka, kusununguka kwekushanda kwekushandiswa kunoratidza ruzivo rwemigwagwa ne-coding ruvara kuratidza kuti protocol yaishandiswa kuitumira.
Pakombiyuta yeEthernet, kushandiswa kwayo kwemashandisirwo kunoratidza mafaira ega pane imwe nhamba yakarongeka uye zvakasarudzwa nemavara akasiyana kana anotumirwa kuburikidza neTCP , UDP , kana mamwe maitiro. Iyo inobatsirawo boka pamwe chete mitsara yemishumo inotumirwa kumashure nepakati pakati penzvimbo uye nzvimbo (iyo inowanzosanganiswa munguva yakareba nemotokari kubva kune dzimwe hurukuro).
Wireshark inotsigira traffic inotora kuburikidza nekutanga / stop stop push button. Icho chinewo ine zvinyorwa zvakasiyana-siyana zvokushambadzira zvinogadzirisa kuti chii chinonyatsoratidzwa uye chakabatanidzwa mumakumbo - chinhu chinonyanya kukosha kubva mumotokari pamakwikwi akawanda ane marudzi akasiyana-siyana ehuwandu hwemashoko ekudzivirira ayo kazhinji asina kufarira.
Mhando dzakawanda dzekuongorora shanduro dzepurogiramu dzakashandiswa mumakore. Heano mimwe mienzaniso mishomanana:
- tcpdump (a command line tool for Linux uye dzimwe Unix-based operating systems)
- CloudShark
- Kaini naAbheri
- Microsoft Message Analyzer
- CommView
- Omnipeek
- Capsa
- Ettercap
- PRTG
- Free Network Analyzer
- NetworkMiner
- IP Tools
Zvimwe zvezvigadziri izvi hazvina maturo apo vamwe vanobhadhara kana kuti vangava nemuedzo usingabhadhari. Uyewo, dzimwe dzezvirongwa izvi hazvigadziri kana kuchengetwa asi dzichiripo kuti dzikanganwe.
Matambudziko ane Network Sniffers
Zvigadziri zvinoshandiswa zvinopa nzira yakanaka yekudzidza kuti mapurogiramu anobata sei. Zvisinei, vanopawo nyore nyore mamwe mashoko ega ega akadai se network network passwords. Tarisa nevaridzi kuti vawane mvumo vasati vashandisa sniffer pane mumwe munhu.
Network probes inogona kungotora data kubva kumakombiyuta iyo kombiyuta yavo yakagadzirirwa yakaiswa pairi. Pane dzimwe hukama, sniffers chete inotora mhepo inotarirwa kune iyo inoshandiswa. Nzvimbo dzakawanda dzeEthernet network interfaces dzinotsigira zvinonzi maitiro anonyadzisa anobvumira sniffer kutora zvose zvinodarika iyo iyo network link (kunyange kana isina kutaurirwa zvakananga kumunhu wacho.)