I-Linux isebenzisa "uTshintsho ekubhaleni" (COW) indlela yokunciphisa ukuphindaphinda okungafunekiyo kwezinto zememori.
Unjani wena Cowsay?
Iinqanawa ze-Cowsay ezineenguqu ezimbalwa, ezibizwa ngokuba ziifayile zenkomo, ezinokuthi zifumaneke kwi-/usr/share/cowsay. Ukubona iinketho zefayile yenkomo ekhoyo kwindlela yakho, sebenzisa -l iflegi emva kwecowsay. Emva koko, sebenzisa i -f iflegi ukuzama enye. $ cowsay -f inamba “Balekani nifuna indawo yokufihla intloko, ndiva ukuthimla kuza.
Ngubani igama likaCowsay?
icowsay yinkqubo eyenza imifanekiso yeASCII yenkomo enomyalezo. Isenokwenza imifanekiso isebenzisa imifanekiso eyenziwe ngaphambili yezinye izilwanyana, ezifana neTux iPenguin, iLinux mascot.
Yintoni i-kernel exploits?
Ngokuqhelekileyo, i-kernel exploit ibandakanya ukwenza i-syscall (ujongano oluvumela iinkqubo zendawo yomsebenzisi ukuba zinxibelelane ne-kernel) kunye neengxoxo eziyilelwe ngokukodwa ukubangela ukuziphatha okungacetywanga, ngaphandle kokuba i-syscall izama ukuvumela kuphela iingxoxo ezisebenzayo.
Yintoni isoyikiso yosuku oluyiqanda?
Isoyikiso somhla ongu-0 (esikwabizwa ngamanye amaxesha sisisongelo seyure engu-0) seso esingazange sibonwe ngaphambili kwaye asihambelani nayo nayiphi na isayino eyaziwayo ye-malware.
Yintoni umahluko phakathi kwendawo yomsebenzisi kunye nendawo ye-kernel?
Indawo ye-Kernel igcinelwe ngokungqongqo ukuqhuba inkqubo ye-kernel enelungelo, ulwandiso lwe-kernel, kunye noninzi lwabaqhubi besixhobo. Ngokwahlukileyo, indawo yomsebenzisi yindawo yememori apho isoftware yesicelo kunye nabanye abaqhubi baqhuba.
Yintoni uhlaselo lweyure enguziro?
“Uhlaselo lwemini enguziro (okanye iyure enguziro okanye imini enguziro) luhlaselo olusebenzisa ubuthathaka obungaziwa ngaphambili kwisicelo sekhompyuter, olo abaphuhlisi khange babenalo ixesha lokululungisa nokululungisa. Kukho iintsuku zero phakathi kwexesha lokufunyaniswa kobuthathaka (kwaye lwenziwa esidlangalaleni), kunye nohlaselo lokuqala. ”
Kutheni ibizwa ngokuba yiZero-Day?
Igama elithi "zero-day" libhekisa kwinani leentsuku umthengisi wesoftware azaziyo malunga nomngxuma. Eli gama ngokucacileyo laqala ngeentsuku zeebhodi zezaziso zedijithali, okanye ii-BBS, xa zazibhekiselele kwinani leentsuku ukususela ekubeni inkqubo entsha yesoftware yakhutshelwa uluntu.
Lithetha ukuthini i-0day?
I-zero-day (0day) i-exploit luhlaselo lwe-cyber olujolise kwi-software esengozini engaziwayo kumthengisi we-software okanye kubathengisi be-antivirus. Umhlaseli ubona ubuthathaka besoftware phambi kokuba nawaphi na amaqela anomdla wokuyinciphisa, ngokukhawuleza enze i-exploit, kwaye ayisebenzisele uhlaselo.