SSH vs SCP
SSH thiab SCP yog ob lub network raws tu qauv uas tuaj yeem siv los pauv cov ntaub ntawv los ntawm kev nyab xeeb ntawm ob lub chaw taws teeb hauv lub network. SSH stands rau Secure Plhaub, thaum SCP stands rau Secure Copy Protocol. SSH yog cov txheej txheem tsim kom muaj kev sib txuas ruaj ntseg ntawm ob lub khoos phis tawj nyob deb, thiab qhov kev sib txuas ruaj ntseg no muaj kev sib txuas lus, kev lees paub thiab kev sib txuas. SCP yog cov txheej txheem rau kev xa cov ntaub ntawv ntawm cov khoos phis tawj hauv lub network, lossis hauv internet siv SSH kev sib txuas. SCP khaws cia qhov tseeb thiab tsis pub leej twg paub ntawm kev sib pauv cov ntaub ntawv.
SSH
Secure Plhaub (SSH) network raws tu qauv muab cov neeg siv nrog kev ruaj ntseg thiab encrypted kev sib txuas lus ntawm tej thaj chaw deb hosts los ntawm insecure networks xws li internet. Nws muaj kev lees paub muaj zog thiab muaj kev ruaj ntseg encrypted channel txhawm rau pauv cov ntaub ntawv nrog kev ceev ntiag tug thiab kev ncaj ncees, thiab ua kom tiav cov lus txib hauv thaj chaw nyab xeeb. SSH raws tu qauv feem ntau yog siv rau Linux thiab Unix raws li systems. Nws tau piav qhia los ntawm IETF Secure Shell Working Group (secsh) thiab nws tau tsim los ua kev daws teeb meem rau cov chaw taws teeb tsis ruaj ntseg xws li Telnet.
SSH siv pej xeem tus yuam sij cryptography rau kev lees paub cov chaw taws teeb tswj, thiab nws tau siv dav los nkag rau hauv cov chaw taws teeb tswj thiab ua rau cov lus txib nyob deb. Los ntawm kev siv SSH raws tu qauv, kev tawm tsam tsis zoo xws li eavesdropping, hijacking cov lus rau kev hloov pauv cov ntaub ntawv hloov chaw, kev tawm tsam ntawm tus txiv neej-hauv nruab nrab thiab hloov kev sib txuas rau cov servers cuav tuaj yeem tiv thaiv vim nws siv kev sib txuas encrypted rau cov ntaub ntawv xa mus.
SCP
Secure Copy (SCP) raws tu qauv ruaj ntseg thiab yooj yim luam cov ntaub ntawv ntawm cov khoos phis tawj nyob deb nroog hauv lub network, thiab nws siv SSH ruaj ntseg txuas rau kev xa cov ntaub ntawv. Nws kuj tseem muaj kev ruaj ntseg zoo ib yam li encrypted SSH. SCP tau tsim los ua ib qho kev hloov pauv rau cov txheej txheem hloov ntaub ntawv cp. Nws feem ntau muaj nyob rau hauv Unix thiab Linux systems, tab sis muaj ntau yam GUIs, uas muaj rau txhua qhov kev khiav haujlwm.
SCP yog kev sib xyaw ntawm RCP thiab SSH raws tu qauv. RCP ua tiav cov ntaub ntawv hloov pauv ntawm ob lub khoos phis tawj thiab SSH raws tu qauv muab kev lees paub thiab kev nkag mus siv pej xeem tus yuam sij cryptography rau SCP.
Qhov txawv ntawm SSH thiab SCP yog dab tsi?
– Ob leeg SSH thiab SCP yog siv los pauv cov ntaub ntawv ntawm cov khoos phis tawj hauv lub network kom ruaj ntseg, raws li pej xeem tus lej encryption.
– SSH raws tu qauv yog tsim kom muaj kev ruaj ntseg encrypted channel ntawm ob khub ntawm cov chaw taws teeb, thaum SCP raws tu qauv yog rau kev hloov cov ntaub ntawv ntawm ib khub ntawm hosts ruaj ntseg. Raws li SCP siv SSH kev sib txuas rau nws txoj haujlwm, ob qho tib si SSH thiab SCP raws tu qauv zoo ib yam tab sis muaj qee qhov sib txawv tseem ceeb.
– SSH raws tu qauv siv dav rau kev nkag mus rau hauv cov chaw taws teeb tswj thiab tswj cov chaw taws teeb, thaum SCP raws tu qauv siv los hloov cov ntaub ntawv ntawm cov khoos phis tawj tej thaj chaw deb hauv lub network.
– Thaum tus neeg siv tsis paub qhov tseeb qhov chaw ntawm cov ntaub ntawv uas xav tau los luam tawm siv SCP, nws tuaj yeem ua ntej tsim kev sib txuas rau cov chaw taws teeb tswj siv SSH, nrhiav txoj hauv kev siv 'cd' thiab ' pwd' cov lus txib thiab tom qab ntawd siv tag nrho txoj hauv kev los luam cov ntaub ntawv siv SCP. Qhov no yog vim tias SCP raws tu qauv tsis tuaj yeem siv los khiav cov lus txib ntawm cov chaw taws teeb tswj tab sis SSH raws tu qauv tuaj yeem siv los ua cov lus txib nyob deb.
