課程資源高級linux系統(tǒng)

第12Linux [root@rhel～]#traceroute (0),30hopsmax,60byte

1.0362.054

0.9221.990

0.8292.195 1.698 1.664 1.933 1.877 1.971

1.658 2.672 2.398 2.503 2.472 2.467 2.400

23.95724.764

23.97924.37324.601

23.87624.13424.557

29.31327.850

37.60635.90320.385

38.29736.84457.837 ifconfig接口選項|IP地址【例12.2】配置網(wǎng)卡 的IP地址，同時激活該設(shè)備[root@rhel~]#ifconfigeno.168.0.100netmask【例12.3】配置網(wǎng)卡 [root@rhel~]#ifconfig :1【例12.4】激活網(wǎng)卡eno [root@rhel~]#ifconfigeno :1up [root@rhel~]#ifconfig inet00netmaskbroadcastinet6fe80::20c:29ff:fe75:d61eprefixlen64scopeidether00:0c:29:75:d6:1etxqueuelen1000RXpackets5711bytes489075(477.6RXerrors0dropped0overruns0frameTXpackets2625bytes312104(304.7TXerrors0dropped0overruns0carrier0collisionsdeviceinterrupt19base[root@rhel~]# inet00netmaskbroadcastinet6fe80::20c:29ff:fe75:d61eprefixlen64scopeidether00:0c:29:75:d6:1etxqueuelen1000RXpackets5660bytes484973(473.6RXerrors0dropped0overruns0frameTXpackets2596bytes307846(300.6TXerrors0dropped0overruns0carrier0collisionsdeviceinterrupt19base inetnetmaskbroadcastether00:0c:29:75:d6:1etxqueuelen1000deviceinterrupt19baselo:flags=73<UP,LOOPBACK,RUNNING>mtuinetnetmaskinet6::1prefixlen128scopeidlooptxqueuelen0(LocalLoopback)RXpackets94bytes8664(8.4KiB)RXerrors0dropped0overruns0frameTXpackets94bytes8664(8.4TXerrors0dropped0overruns0carrier0collisionsinetnetmaskbroadcastether2a:e1:6e:43:1b:99txqueuelen0RXpackets0bytes0(0.0RXerrors0dropped0overruns0frameTXpackets0bytes0(0.0TXerrors0dropped0overruns0carrier0collisions【例12.8】禁用網(wǎng)卡eno [root@rhel~]#ifconfigeno [root@rhel~]#ifconfig hwether [選項目標(biāo)【例12.10】測試 的連通性[root@rhel(8)56(84)bytesof64bytesfrom8:icmp_req=0ttl=64time=1.49ms64bytesfrom8:icmp_req=1ttl=64time=0.873ms64bytesfrom8:icmp_req=2ttl=64time=1.00ms64bytesfrom8:icmp_req=3ttl=64time=0.440ms鍵[root@rhel -s128136bytesfrom22:icmp_req=1ttl=64time=1.38ms136bytesfrom22:icmp_req=2ttl=64time=0.645ms136bytesfrom22:icmp_req=3ttl=64time=0.426ms136bytesfrom22:icmp_req=4ttl=64time=0.358ms136bytesfrom22:icmp_req=5ttl=64time=0.401[root@rhel~]#-c464bytesfrom:icmp_req=1ttl=64time=0.527ms64bytesfrom:icmp_req=2ttl=64time=0.352ms64bytesfrom:icmp_req=3ttl=64time=0.429ms64bytesfrom:icmp_req=4ttl=64time=0.340ms--- statistics--4packetstransmitted,4received,0%packetloss,timerttmin/avg/max/mdev=0.340/0.412/0.527/0.074 netstat選項延遲[root@rhel~]#netstat-KernelIProuting

MSSWindowirtt0 0

0 0

00 [root@rhel~]#netstat–antu|grep 00 [root@rhel～]#netstat-ActiveInternetconnections(w/oProtoRecv-QSend-QLocal

Foreignarp選項[IP地址][MAC地址[root@rhel~]# HWtypeHWaddress

FlagsC

[root@rhel~]#arp-s9[root@rhel~]#

HWtype

Flags

[root@rhel～]#arp-d[root@rhel～]#

FlagsC

[root@rhel～]#tcpdump-itcpdump:verboseoutputsuppressed,use-vor-vvforfullprotocoldecodelisteningoneno ,link-typeEN10MB(Ethernet),capturesize65535 ,,win190,lengthck1,win190,length10:40:01.325621IP.49585>rhel.ssh:Flags[.],ack168,win370,length10:40:01.325856IPrhel.ssh>.49585:Flags[P.],seq168:284,ck1,win190,length10:40:01.326319IPrhel.ssh>.49585:Flags[P.],seq284:336,ck1,win190,length 務(wù)的狀態(tài)。在RHEL7中， systemctl默認(rèn)把擴(kuò)展名當(dāng)作.service。 [root@rhel~]#systemctlstartLoaded:loaded(/usr/lib/systemd/system/named.service;disabled)Active:active(running)sinceThu,30May201309:31:38;1min11sProcess:3073ExecStop=/bin/sh-c/usr/sbin/rndcstop>/dev/null||/bin/kill-TERM$MAINPID(code=exited,status=0/SUCCESS)Process:3083ExecStart=/usr/sbin/named-unamed$OPTIONS Process:3081ExecStartPre=/usr/sbin/named-checkconf-MainPID:3084

[root@rhel~]#systemctlstatusnamed.service-BerkeleyInternet └3084/usr/sbin/named-uMay3009:31:38rhelnamed[3084]:open:/etc/rndc.key:filenotMay3009:31:38rhelnamed[3084]:couldn'taddchannelMay3009:31:38rhelnamed[3084]:managed-keys-zone:loadedserial3May3009:31:38rhelnamed[3084]:/IN:loadedserial0May3009:31:38rhelnamed[3084]:/IN:loade...0May3009:31:38rhelnamed[3084]:zone May3009:31:38rhelnamed[3084]:zone /IN: May3009:31:38rhelnamed[3084]:zonelocalhost/IN:loadedserial0May3009:31:38rhelnamed[3084]:allzonesloadedMay3009:31:38rhelnamed[3084]:[root@rhel~]#systemctlstop[root@rhel~]#systemctlrestart[root@rhelisolinux]#systemctlreload[root@rhel~]#systemctlenableln–s'/usr/lib/systemd/system/named.service'[root@rhelisolinuxsystemctlis-enablednamed.service[root@rhel~]#systemctldisablenamed.service[root@rhel~systemctlis-enablednamed.service[root@rhel~]#systemctllist-units--

ACTIVEloadedactive

JOBInstallABRTcoredump

loadedactiverunningloadedactiveloadedactive

ABRTkernellogwatcherHa