Thay v ly mt gi tr v hng c th no nh snmpget (hoc snmpgetnext), snmpwalk ly v mt bng tp cc tham bin. V d: Dng lnh snmpgetnext ly gi tr tham bin system.sysName ng lin sau tham bin system.sysContact snmpgetnext -v 2c -c public1 localhost system.sysContact.0 SNMPv2-MIB::sysName.0 = STRING: SUTRINH snmpget: Lnh snmpget c s dng ly d liu t mt host no bng cch cung cp tn host, thng tin xc thc v mt OID.Ĭ php: snmpget Cc ty chn ging lnh snmpget. S dng: Mt s lnh qun l dng giao thc SNMP, ch cc cu lnh g vo c in m v nghing trong mi v d, ch nghing khng t m l kt qu xut ra:Ī. Phn ny ging nh trong windows, c trnh by mc 2 tip theo.Ģ. Sau khi cu hnh xong th s dng dng lnh qun l. Sau mi ln chnh sa file cu hnh th g lnh service snmpd restart khi ng li dch v SNMP ng vi ln chnh sa mi. Khc vi trong Windows, nu ta mun thit lp community cho dch v SNMP th phi sa li file cu hnh /etc/snmp/nf nh sau: Sau khi ci th s c thm hai dch v l snmpd v snmptrapd. i vi distro Fedora Core 4 th ci thm trong mc System Tools/snmpd. Mc nh th dch v SNMP khng c ci trn Linux nn phi ci thm vo. Ta c th s dng dch v SNMP v cng c Net-SNMP c sn ca Linux. S dng gi ci: Gii nn, to lin kt mm vi net-snmp: #cd # tar -xvzf net-snmp-5.0.2.tar.gz #ln -s net-snmp-5.0.2 net-snmp #cd ~/net-snmp #./configure (SNMPv1 mc nh c s dng) Bin dch: #makeĬi t: #make installNn thit lp thm bin mi trngATH=$PATH:/usr/local/bin:/usr/local/sbin MIBS=ALL export PATH MIBSS dng dch v c sn trong Linux: Sau khi cu hnh dch v, cn restart li dch v.Ĭ th dng gi ci thm hoc dng cng c Net-SNMP c sn trong mt s distro Linux. Mt khc, i vi tham bin system.sysContact th ta c th t li gi tr c. V d: i vi tham bin v thi gian UpTime ca h thng th ta khng set gi tr li c. l thit lp quyn pha ngi dng, tht ra th bn thn mi tham bin cng c quyn ca ring n. READ-CREATE: cho php to ra thng s NOTIFY: dng cho c ch trapping. I vi mi Community s i km vi quyn (rights) khc nhau: READ-ONLY: ch cho php ch c, khng thit lp li thng s c. M dch v SNMP Service voTab security, tab ny cho php thit lp community c ngha ging nh mt khu gia thit b qun l v thit b cn qun l. Khi khi ci, ta s c thm 2 dch v h tr SNMP l SNMP Service v SNMP Trap Service. Mc nh h iu hnh Windows khng ci dch v h tr cho giao thc SNMP, ci thm ta Vo Control Panel, double click vo Add Remove Programs -> Add Remove Window Components. Ci t, cu hnh: C th download cc bn ci t t mt trong hai a ch sau: C th ni y l cng c SNMP c bn nht cho vic qun tr mng thng qua ccĭng lnh truy vn, rt ph hp vi vic lm quen giao thc SNMP, sau y l chi tit cch ci t, cu hnh v s dng cng c Net-SNMP. Trc nm 2000, d n c tn l UCD-SNMP sau c i tn thnh NetSNMP.y l cng c c vit bng ngn ng Perl s dng dng lnh qun l. Nm 1998, IETF thng qua SNMP version 3 c h tr cc phng thc m ha. Mt nh qun tr mng h thng ngi an Mch tn Niels Baggensen pht trin thm mt s bn v tng kh nng thc thi trn h iu hnh Solaris. Dave-Shield ti i hc Liverpool (Anh) sau tm cch s dng UCD-SNMP gim st my in ni b, pht hin mt s li trong m ngun v a ra mt s bn v thch hp vi h thng HP-UX. Nm 1995, m ngun ca cng c ny c pht trin ngy cng rng ri v t, d n UCD ra i. ng ta cng pht trin thm mt s on script bo co, ghi nhn kt qu thc hin. Davis-Wes Hardaker a ra mt nh ngha cho tp MIB v qun l ti nguyn host trong mng ( hostresources MIB). Nhm ny pht trin mt giao thc qun l mng mi bao gm mt s th vin h tr cc cu lnh qun l n gin. Gii thiu cng c net-snmp: Ngun gc ca cng c Net-SNMP khi u t nm 1992 ti i hc CarnegieMellon c pht trin bi nhm mng CMU (trng nhm l Steve Waldbusser). g lnh th vo Command Prompt ca Windows hoc Console trong Linux, nh ci t cng c trc nhe. ly chngNgi p Phng ng (updating.)Hnh ny do n ng hay n b chpxin gii thiu mt cng c SNMP n gin qun l bng dng lnh cng c Net-SNMP (vit bng Perl). Gic m b nh mtHancock - Siu nhn ci bang (2008) DVDRip! Only 1 link!Hi chng s. Tn ng nhp Mt m Tm hiu cng c Net-SNMP Bi c gi bi C.E.O
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