Admins ndi Hackers Angatha Kutenga Msewu Wozungulira
A network sniffer ndikumveka ngati; chipangizo cha pulogalamu yomwe imayang'anitsitsa, kapena imawombera deta yomwe ikuyenda pazithunzithunzi za makompyuta pa nthawi yeniyeni. Ikhoza kukhala pulogalamu ya mapulogalamu omwe ali ndiwekha kapena chipangizo cha hardware chomwe chiri ndi software yoyenera kapena firmware.
Zithunzi zamakono zingatengeko zojambulazo za deta popanda kuziwongolera kapena kusintha. Zithunzi zina zimagwira ntchito ndi mapepala a TCP / IP , koma zida zowonjezereka zingagwiritsidwe ntchito ndi zida zambiri zamtaneti ndi m'munsi, kuphatikiza mafelemu a Ethernet .
Zaka zapitazo, zida zowombera zida zinali zogwiritsidwa ntchito pokhapokha ndi akatswiri opanga ma intaneti. Masiku ano, ndi mapulogalamu a pulogalamuyi amapezeka kwaulere pa intaneti, amakhalanso otchuka ndi ovina pa intaneti ndipo anthu amangofuna kudziwa zogwiritsa ntchito Intaneti.
Zindikirani: Nthawi zina anthu amatha kugwiritsa ntchito makina opanga mafilimu, maulendo opanda zingwe, opanda zida za Ethernet, zithunzithunzi zamapaketi, olemba mapaketi, kapena ochepa chabe.
Kodi Ndondomeko Zotani Zomwe Zimagwiritsidwa Ntchito
Pali zovuta zambiri pa mapepala a sniffers koma zida zambiri zosanthula deta zimasiyanitsa pakati pa zifukwa zomveka komanso zopanda pake, zachilendo chimodzi. Mwa kuyankhula kwina, zambiri zopaka paketi zingathe kugwiritsidwa ntchito molakwika ndi munthu mmodzi ndi zifukwa zomveka ndi wina.
Pulogalamu yomwe ingatenge mapepala, mwachitsanzo, ingagwiritsidwe ntchito ndi wonyenga koma chida chomwecho chingagwiritsidwe ntchito ndi wogwiritsira ntchito pakompyuta kuti apeze ziwerengero zamtaneti monga bandwidth yomwe ilipo.
Sniffer ingathandizenso kuyesa firewall kapena filters zamtundu, kapena kusokoneza maubwenzi a kasitomala / seva.
Zida za Network Sniffer
Wireshark (kale ankadziwika kuti Ethereal) amadziwika kuti ndi wotchuka kwambiri padziko lonse lapansi. Ndiwowonjezera, mawonekedwe otseguka omwe amasonyeza deta yamtundu ndi mtundu wa coding kuti asonyeze njira yomwe amagwiritsiridwa ntchito kuyitumiza.
Pa ma intaneti a Ethernet, mawonekedwe ake ogwiritsira ntchito amawonetsera mafelemu aliwonse pa mndandanda wa mawerengedwe omwe ali ndi mndandanda wa mitundu yosiyana kaya amatumizidwa kudzera mu TCP , UDP , kapena ma protocol ena. Zimathandizanso gulu kuphatikiza mitsinje ya uthenga kutumizidwa mobwerezabwereza pakati pa gwero ndi malo omwe amapita (zomwe nthawi zambiri zimasakanikirana motsatira nthawi ndi magalimoto kuchokera ku zokambirana zina).
Wireshark imathandizira maimidwe a magalimoto pogwiritsa ntchito mawonekedwe oyambira. Chidachi chimakhalanso ndi zosankha zosiyana siyana zomwe zimachepetsa deta yomwe ikuwonetsedwa ndikuphatikizidwa mu zojambula - chinthu chofunika kwambiri chifukwa magalimoto pamaselo ambiri ali ndi mitundu yosiyanasiyana ya mauthenga olamulira nthawi zambiri omwe sakhala ofunika.
Mapulogalamu ambiri opanga mapulogalamu a pulogalamuyi ayambitsidwa kwa zaka zambiri. Nazi zitsanzo zochepa chabe:
- tcpdump ( lamulo lamtundu wa Linux ndi machitidwe ena opangidwa ndi Unix)
- CloudShark
- Kaini ndi Abele
- Microsoft Message Analyzer
- Bwerani
- Omnipeek
- Capsa
- Ettercap
- PRTG
- Free Analyzer Network
- NetworkMiner
- Zida za IP
Zina mwa zipangizozi ndi zaulere pamene ena amawononga kapena akhoza kuyesedwa kwaulere. Ndiponso, ena mwa mapulogalamuwa salinso akusungidwa kapena kusinthidwa koma adakalipo kuti awonekere.
Nkhani ndi Network Sniffers
Zida za Sniffer zimapereka njira yabwino yophunzirira momwe ma protocol amachitira. Komabe, amaperekanso zosavuta kuzidziwitsa payekha monga mapepala achinsinsi. Fufuzani ndi eni ake kuti mupeze chilolezo musanagwiritse ntchito sniffer pa intaneti ya wina.
Mapulogalamu a pulogalamu amatha kulandira deta kuchokera pa makina omwe makompyuta omwe amawakonda amawakhudza. Pa maulumikizi ena, sniffers amangotenga magalimoto omwe amaloledwa kuntaneti. Mautumiki ambiri a Ethernet amatenga chithandizo chomwe chimatchedwa kuti chizoloŵezi chogonjetsa chimbudzi chomwe chimalola sniffer kutenga magalimoto onse akudutsa mumalumikizidwe awo (ngakhale ngati sakunenedwa mwachindunji kwa wolandiridwayo).