Indlela yokulungisa i-firewall ngezandla zakho?

Ukuphepha ku-intanethi ... Lesi sihloko sixoxiswane ngenkuthalo ngemidiya yezinhlamvu ezihlukahlukene zokuthi "yellowness" kakade unyaka, ngokukhohlwa ngokuphelele ukuthi kuyoba kuhle ukunikeza izincomo ezithile, futhi hhayi ukutshela inqwaba yezindaba ezimbi kodwa ezingakholelwa kakhulu.

Ngingathanda ukukutshela kancane mayelana nendlela yokulungisa i-firewall ngokwakho, ngaphandle kokusebenzisa izinsizakalo zosizo ezihlukahlukene zekhompyutha.

Kuyini?

Ngaphambi kokuba ukhulume ngokulungiselelwa, udinga ukuchitha ukucindezelwa okuncane ekujuleni kwesihloko. I-firewall iyisimiso esikhethekile esivimbela ukungena kwikhompyutha yakho kusuka ekujuleni kwe-Inthanethi, futhi kuvimbela izenzo ze-spyware ezingadlulisela imininingwane yakho ebusweni.

Kunini ngempela okudingekayo?

Ngokuphambene nenkolelo evamile, abantu bakho abakhohlisi abanobukhompiyutha bakho ngeke bahlasele. Yiqiniso, uma ungumqondisi wezentengiselwano webhange, lokhu kungaba ngokoqobo, bonke abanye abakwazi ukwesaba ikakhulukazi.

Kodwa uma une-IP "emhlophe" (hhayi eguquguqukayo), uthatha isiphakeli se-ftp elula ekhaya noma unqume ngokuhlelwa kwe-mazahism ngayinye ukuthatha isayithi kwikhompyutha yakho yasekhaya ... Leyo firewall iqinisekile ukuthi ingeneka!

Indlela yokulungisa i-firewall ngendlela efanele, ukuze ikwazi ukubhekana ngokuphumelelayo ngangokunokwenzeka nayo yonke imisebenzi eyabelwe yona? Masinyane wenze ukubhuka ukuthi sizokhuluma ngezilungiselelo ezivamile, ngoba izinsiza zaloluhlobo emakethe yanamuhla ziningi kakhulu.

Ukwenza ngokwezifiso amaphakheji

Okokuqala, sizokhipha imithetho esebenzayo kumaphakethe angenayo. Lokhu kubaluleke nakakhulu, ngoba ngokuphumayo i-firewall evamile ngokuqinisekile kuyobhekana naso ngokwayo (ngokusekelwe emithethweni enikezwe umthuthukisi).

Siyakuvimbela zonke "izincwadi" ezingenayo (TCP) ezingeni eliphakathi kuka 1-1025, kanye ne-UDP yamabanga angu-1-1024. Kuyini? Into yukuthi kukhona lapho iningi lazo "izimbobo" ekuvikeleni kwe-OS yomndeni we-Windows. Ngokuvamile, uhlu lwabo luyoba mnandi ukuthola ngisho nangaphambi kokulungisa i-firewall.

Qinisekisa ukumboza iminyango ku-TCP 5000, naku-UDP 1900. Ngenxa yalokho okushiwo ngenhla, amarekhodi amaningi amasistimu angaphansi kokuvikelwa okunokwethenjelwa, izinga elihlangabezana nazo zonke izidingo zomsebenzisi ojwayelekile.

Kodwa ungayilungiselela kanjani i-firewall, i-Windows 7 ehlinzeka ngisho nasephaketheni eliyisisekelo? Uma wenza konke okuchazwe ngenhla, ungacabanga ukuthi uvikelekile ngokuphelele.

Yini engingayivula?

Ukuze uyivule kungenzeka i-DNS (nangenkampani UDP 53), i-FTP (TCP 20-21). Uma kunesidingo esinjalo (siqu se-http-server), ungabuye uvule i-TCP 80. Cishe wonke amaphakheji we-ICMP angaxazululwa ngokuphepha. Iqhinga elincane: uma uvimbela izingcingo kwi-port yama-computer akude avela ku-ICQ, khona-ke inani lokukhangisa lizoncishiswa kakhulu.

Njengoba kulula kakhulu ukumisa i-firewall ngezindlela ezichazwe ngenhla, kungenzeka ukuthi ngisho ne-novice nabaqalayo abangenalwazi bazobhekana nalokhu. Qaphela ukuthi ayikho isikrini senethiwekhi esingakwazi ukukhokhela ukuhlukunyezwa kwezandla zomsebenzisi, ngakho-ke ungabuyeli amasayithi angabazayo, ungavuli izixhumanisi eziholela kunoma ikuphi kude!

Futhi kanjani ukuvula i-firewall ngokuphelele? Njengomthetho, kuzilungiselelo zanoma yiluphi lolu hlelo lokusebenza kukhona into "vumela konke" noma into enjalo. Sebenzisa lokhu njengokungavamile ngangokunokwenzeka.