Centos7网卡配置的两种方式

Centos7网卡配置Linux有两种网络服务的管理组件：network/NetworkManager方法一：network查看网卡信息[root@localhost~]#ipa[roDt(aiocalhostT#ipa1:lo：<L00PBACKhUPfLOWERUP>mtu65536qdiscnoqueuestateUNKNOWNgroupdefaultqlenlw«0link/loopback00:00:00:SO;QO:00brdCO:00:DO;OG:GO:00ineT127.0.0.1/8scopehostIdvalid_lftforeverpreferredlft~oreverine：6:：1/izbscopehast2:ens?3:^BROADCAST,MULTICAST,UPHLOWER_LP>mtu15GGqdiscpfifofaststateUPgroupdefaultqlen1O0G:linkf&th亡「3D:Or:29:了日：43：E5b「d1~「：ff:ff:f「；ff:ff:3:virbro:^NO-CARRZER,BROADCAST,MULTICAST,UP>ntt1503qdiscnoqueueEtateDOWNgroupdecanit^Len1QG0link/ether5?：54：ee：ri：37：odbrdf「：f『：「「：1■「：ff：仃ine7192.168.122.1/24brd192.1GS.122.255scopeglobalvirbrOval.id_lftforeverpreferredlf7forever4：virbro-nic:<broadca5Tjmjlticast>idtuisooqdiscpfifo_"astmastervirbrosta1eDOWNgroupdefaul!qlenLOGOlink/ether52：54：QG：f1：37：Qdbrdff：if：ff：ff：if：幵这里查看到网卡ens33修改网卡配置文件[root@localhost~]#cd/etc/sysconfig/network-scripts/[root@localhostnetwork-scripts]#ls可以查看到网卡配置文件ifcfg-ens33

ifcfg-en?331ifdown-pppifup-ibifup-TearniTCTg-Loifcfg-en?331ifdown-pppifup-ibifup-TearniTCTg-Loifdown-routesifup-ipppifup-TeanForTifdownifdown-sitifup-ipv6ifup-tunnellfdown-bnepifdown-Teamifup-isdnifup-wirelessitdown-ethi.fdown-TeamPor-itup-plipl.nit.ipvfi-globalIfdown'ibif-Jown-Tunnelifup-plusbnetwork-functionsifdoi^n-ipppifupifup-postnetwork-iunctions-ipv6ifdowri'ipvfiifup-aliasesifup-pppi^down-Lsdnifup-bnepifup-routesifdohrn-postifup-ethifup-sit[root(aiocalhostnetwork-scri.pt：£]#network-scripts]#Is[rooL(alocalhost-]#cd/etcfsysconflg/neTwork-sciipts/原配置文件rYPE=Ethern已TPF<OXY_METHOD=n0neBROW£ER_ONLY=noBOOTPHOTO=noneOEFROUTE^/esIPV4FAILJRE_FATAL=noIPV6亍1«丁=廿己厂IPV6AUTOCDMF=yesIPYG^DEFROLITIZ=ytsIPV6^FAILJRE_FATAL=noIPV6_flDDR_GEN_M0DE=stable-privacyNAT1E^eii533LIUID=f25fcd55cce5-4eaaaOfO-f837651a7712DEVICE=ens33□NB00T=no修改后的配置文件（主要修改红色标注）TYPE=EthernetPROXY卜1匚THOD=noneBO[)TPR070=staticptr^ou1t-ye5IPV4FAILUREFATAL=noIPV6亍町丁=唇一IPW6_AUTOCONF=ye5IPV&2DEFROUTE=ye5IPU6_FAILUREFATAL^noIP76_ADDR_GEN_MOUt=stable-privacyNAME=eri5337651a7712DEVICE=ens33pNB00T=yesIPADDR=192.150.137.11NETMASK=255.255.255.0GATEWAY=192.168.137.2DNS1^192.168.2.2保存配置文件退出[root@localhost]#mount-a（检查配置文件是否编辑有误）[iooT^aiocalhost[roottglocalhost[iooT^aiocalhost[roottglocalhost[rooTgLocalhostrITaEHi■為1hlfie+netvork-scrLpTs]#network-scriptsnetwork-scripts]#、i仝vimlTcTg-ens33mount-acdIl3•重启网卡，使配置生效[root@localhost~]#systemctlrestartnetworkLroot@iocaLnast~j#[roaT^lccalhastsystemctlrestartnetwork再次查看网卡信息[root@localhost~]#ipa|naot@tocalhast-]#ipa1：lo：<loopback;urrlowerup>mtu65536qdiscnoqueuestateunknowngroupdefaultqleri1000link/loopback00;GO;GD;00;OG:OQbrdGO;00;Ofl;OQ;DG;00inet127.0.0.1/bscopehas7tovalid_lftfoReverpreferred_lftforeve『iiietG:：1/128scopehost廿日1空申ere叩巴尸fEmrur12:ens33:<BROADCASTFNULTICA£'I,UPHLOWERUP>mtu15Q0qdiscpfifofaststateUPgroupdefdultqlen13DQ1ink/ether00:Gc；29:7a；40；35brri-ff：-f：ff；ff:f-F：f-iret192.16E.137.11/24brd192.168.137.255scopeglobalnoprefixrouteens33valid1ftfoReverpreferred1ftforeve『inet(3feSG::9213:e64817abbiadbG/64scape1inknoprefixrautevalid1ftfo^everpreferred1ftforeverP：vlrbrG:<N0■CARRIER,BROADCASTHMULTICAST,UP>nitu1500qciiscnoqueuestateDOWNgroupdefaultqlenlooelink/cther32:54:66:fl:37:Sdbrdff:ff:ff;ff;ff:ffiret192.168.122.1/24b-d192.160.122.255scopeglobalvirbrOvalid1fttoReverpreferredLf1forever4:vlrbro-iiLc:^broadcast;multicast>mtul^ooqdiscp^ifofastmastervirbrostateDDWMgrouprie~aultqlen1000link/ether52：51：00："1：37：Odbrdtt："t：tt：tt：tt：t"[rnntffllnr^lhn,^-~1a-I4.Ping命令测试同网段IP是否连通[root@localhost~]#ping192.168.137.1[IIL弋LWULII4LFJ!LJ77[root^localhast-]#ping19216B137.1FINO132.166.137.1(1^2.ISE.137.I)56(G4)b/TSSOfdata.64646464ACbytesbytesbytes■from■fromfrom■from192.168.137.1192.168.137.1192.16G.137.1192.168.137.1icmp_seq=licmp_seq=2icmp_5eq=3icmp?eq=41=64ttl=64Ttl=b41=64tiwtimEtimetimeL.32ms&.5G5msL.04msL.IEms------192.168,1371ping4packetsLransinitted,rttmin/avg/max/mdev-Iroot^locaLhost~1#Is~atistics---4received,0叢^acke;I055rtine3007ms0.505/1.015/1.325/0.312msjTmrmpnjuamiTSTiieiwuijTmrmpnjuamiTSTiieiwui±pL^j#[rnntOlnralhn^tnp+wnrk-rrin+1Jf输完命令回车后，提示连接ens37网卡成功，再来查看网卡配置文件和IP方法二：NetworkManager给虚拟机重新添加一块网卡，网络适配器2唤件选哽iaslia^26Bfcb理器2Qn^'(SCSI)3DGB厂meJtpi匚、iTlTtt田右4±FuLdNi-crvUZ专卜茫-.~」罟L.-：>(VMnetS(fWTJ砌络适配寻2L(VMnetS(MM)^lUSB三卫兰T?耳4：ELf^.L：.n吕3厂：呵(/-■+ii-Tf：?-j-訂l:.：T1.

指定井配给此虛拟机的内存堪。内存犬的倍亂几池||上jpMj:2040:MB3GBV2刖■1GB補■晟衣建仪内存512MBCE'：.it^J可龍r汀〒一匕）Z56MB128MB■建尉存&4MB1GB32MB建仅的最小畜户拭標柞系覘内存1.查看网卡信息[root@localhost~]#ipa[roatOil-acalhc^t~#ipa1:Id:cLOOPEACK,UP,LOWEFt_UP^mtnG5536qciiscnoqueue5tateUNKPIOWNgroupdefaultqlen1GOGIink/loopback00:00:00:00:30:00brdOfl：00:OG:GO:OG:GOinet127.9.0.1/S^capehastlaforeverprererred_lTtf□reverinetG::1/12Bscopehost2:en^33:<BR0ADCAST,MULTICftSTrUPHLOWER_UP>intu15OGqdiscpfifa_5ristststeUPgroupdeTsuitqlen10GDIink/etherOG:6c;29;f4;2c;S5trdf「：「Df「：「f:f「：f"Finet192.16S13710/24brd192.16E137255scopegiobrilnoprerixrouteens33inetGfeBD::6b55:985：6530:9a04/fi4百匚opeIinkroprefix『diitevalid_lftforeverptf5frred_lrtforever3;vi-brO：<N0-CARRIER,BROADCAST,MUITTCASTJ.IP>1500qdiscnoqueuestate7i闻Mgroupdefaultqlen16BBlink/ether52;54;BB;B5:7b;斗4brdff；ff；ff；ff：ff；ffinet192163,122,1/24brd152,168,1.22,255scopeglobalvirbrOvali^H2-foreverpreferred_lftforever4；vi-bro-nic:<BROADCASTrMUiTICAST>mtii15佃qdiscpfifofastmastervirbrOstateDOWNgroupdefaultqlen100G5;en537：<BROADCAST,MULTICftST,HP,LOWEI^LIP>mtn1500qdiscpfifo_-Fa5tstateIIPgroupdefauTtqlen1886link/ether88;Sc:29;f4:2c:Sfbrdff；ff；ff；ff：ff；ff1net6feBO：；13bb；alf5；-bd2：54g0/64scope1inknoprefi_xroutevali^H2-foreverpreferred_lftforeverI*i~inn"l"aTHm~c4"县这里查看到网卡ens33是已经配置过的，有IP地址，网卡ens37是刚刚新添加的网卡，还没有配置IP[root@localhost~]#cd/etc/sysconfig/network-scripts/[root@localhostnetwork-scripts]#lsL1M3VXJ3L■25L」EronTral(ic^lhn^Trd/Ate/^v-Rrnriifin^nptwork-sc『IoKFrout@localhQStnetwork-scrLp~s]#1空ifffg-en533ifdown-ppp■iflip-1bi-iip-TeanLfcfgloifdownroutesifupipppi~upTeamPortifdown-sitifup-ipv&i^up-tiinncLifdown-brepltaown-reamifup-wireless_fdown-et[iiftlown-TeamPortifup-plipinLt.ipve-globalifriawn-ibjfdewn-binneliPup-plusbnetwnrk-riinctionsifdown-ipppifupifup-p057network-functions-ipv6ifdownipv6ifup-aliasesitup-pppifdowi-isdrlfup-br.epifup-routes_fdown-pottifup-elhiTup-sll[root@localha51network-s匚「ip^-s]#这里可以看到只有ens33网卡的配置文件，没有ens37的配置文件，接下来我们就用NetworkManager服务的命令来生成配置文件并且配置IP地址[root@localhost~]#nmcliconnectionaddcon-nameens37typeethernetifnameens37ipv4.methodmanualipv4.addresses192.168.137.11/24autoconnectyesi-doun■lsdniTup-bncpiTup-routesi^doun-postifup-ethifup-sitIrootSlocalhostnetwork-scriptsl#nmcliconnectionoddconnameen&37typeeThernctitnameConnection1en537'(13-7755-4734--9a3celb40pfa)successful1yadded.『eci询"片『eci询"片1hnvrnetwork-riotsi#1sifctg-ens33Lfdown-ipv6ltdown-Tunnelitup-isdnitup-TeamPortifcig-ens37Lfdcwn-isdnifupifupplipifuptunnelLFn订Imfdown-postLfup-alLasesLTup-plusbifup-'hijrelessifdcwnifdown-pppifup-bnepitup-postimt.ipvfc-globalifdown-bnepifdown-routesifup-ethifuppppnetwork-functionsifdown-ethifclown-sitifup-ibifup-routesnttwork-functions-iiDV^ifdcwn-Lbifdown-reamifup-ipppifup-S1Tifdcwn-ipppitdown-TeamPortifup-ipv6itup-Team[root(aiocalhostnetwork-scriptsJ#catifciq-ens37TYPF=EtfiernetPRO>Y_METHOD=noneBROWSERONLY=nDIPADDR=L92.163.137.11PREFIX=2flDEFROUTE=yesTPV4_FAIILIPF_FATAI=00丄叫#i>i丄yy乱一IPV6AUTOCONF=yesIPV6_DEFR0UTE=ye5IPV6_FAILURE_FATAL=n3IPV62AD[)R_GEr*_MODE=stab'Le-PrivacyMAHE=ens37JUI[]>a0eB3213-7703-473^-3988-9a3celb4SeTaDEVICE=ens370MB00T-/es[root(aiocalho51network-scripts]#2.再重启网卡[root@localhost~]#systemctlrestartnetwork[root^localhostnetworkscripts]#ipa1：Lo：<LOOP(JACK,.UP,.LOWERUPb-mtuqdiscnoquenestateuriKriUwblgroupde-aultqlen1UULink/loopbackuu：uu：uu：uu：uu：uubrduu：uu：uu：uu：uu：uumet127.a.u.1/&scopehastlovalidl~t~oreverprc~erredL~t~oreverinetb::1/12Uscopehostvalidl~t~*reverpre~erredL~t~orever2：ens33：<eROA[JCAST,MULTICAST,UPLOWbAUP>mtn15UUqdiscp~i~o~aststateUPgroupde~anLtqlen1UUULink/ether□□：Uc：29：f4：2c：SSbrd==：==