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      學(xué)習(xí)啦>學(xué)習(xí)電腦>操作系統(tǒng)>Linux教程>

      linux端口查詢命令

      時(shí)間: 佳洲1085 分享

        Linux系統(tǒng)需要了解端口占用情況的時(shí)候我們可以通過(guò)netstat命令來(lái)查看,下面由學(xué)習(xí)啦小編為大家整理了linux的端口查詢命令的相關(guān)知識(shí),希望對(duì)大家有幫助!

        linux的端口查詢命令詳解

        在Linux使用過(guò)程中,需要了解當(dāng)前系統(tǒng)開放了哪些端口,并且要查看開放這些端口的具體進(jìn)程和用戶,可以通過(guò)netstat命令進(jìn)行簡(jiǎn)單查詢

        netstat命令各個(gè)參數(shù)說(shuō)明如下:

        -t : 指明顯示TCP端口

        -u : 指明顯示UDP端口

        -l : 僅顯示監(jiān)聽套接字(所謂套接字就是使應(yīng)用程序能夠讀寫與收發(fā)通訊協(xié)議(protocol)與資料的程序)

        -p : 顯示進(jìn)程標(biāo)識(shí)符和程序名稱,每一個(gè)套接字/端口都屬于一個(gè)程序。

        -n : 不進(jìn)行DNS輪詢,顯示IP(可以加速操作)

        即可顯示當(dāng)前服務(wù)器上所有端口及進(jìn)程服務(wù),于grep結(jié)合可查看某個(gè)具體端口及服務(wù)情況··

        netstat -ntlp //查看當(dāng)前所有tcp端口·

        netstat -ntulp |grep 80 //查看所有80端口使用情況·

        netstat -an | grep 3306 //查看所有3306端口使用情況·

        linux端口查詢命令實(shí)例

        顯示詳細(xì)的網(wǎng)絡(luò)狀況

        # netstat -a

        顯示當(dāng)前戶籍UDP連接狀況

        # netstat -nu

        顯示UDP端口號(hào)的使用情況

        # netstat -apu

        Active Internet connections (servers and established)

        Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name

        udp 0 0 *:32768 *:* -

        udp 0 0 *:nfs *:* -

        udp 0 0 *:641 *:* 3006/rpc.statd

        udp 0 0 192.168.0.3:netbios-ns *:* 3537/nmbd

        udp 0 0 *:netbios-ns *:* 3537/nmbd

        udp 0 0 192.168.0.3:netbios-dgm *:* 3537/nmbd

        udp 0 0 *:netbios-dgm *:* 3537/nmbd

        udp 0 0 *:tftp *:* 3346/xinetd

        udp 0 0 *:999 *:* 3366/rpc.rquotad

        udp 0 0 *:sunrpc *:* 2986/portmap

        udp 0 0 *:ipp *:* 6938/cupsd

        udp 0 0 *:1022 *:* 3392/rpc.mountd

        udp 0 0 *:638 *:* 3006/rpc.statd

        顯示網(wǎng)卡列表

        # netstat -i

        Kernel Interface table

        Iface MTU Met RX-OK RX-ERR RX-DRP RX-OVR TX-OK TX-ERR TX-DRP TX-OVR Flg

        eth0 1500 0 181864 0 0 0 141278 0 0 0 BMRU

        lo 16436 0 3362 0 0 0 3362 0 0 0 LRU

        顯示組播組的關(guān)系

        # netstat -g

        IPv6/IPv4 Group Memberships

        Interface RefCnt Group

        --------------- ------ ---------------------

        lo 1 ALL-SYSTEMS.MCAST.NET

        eth0 1 ALL-SYSTEMS.MCAST.NET

        lo 1 ff02::1

        eth0 1 ff02::1:ff0a:b0c

        eth0 1 ff02::1

        顯示網(wǎng)絡(luò)統(tǒng)計(jì)信息

        # netstat -s

        Ip:

        184695 total packets received

        0 forwarded

        0 incoming packets discarded

        184687 incoming packets delivered

        143917 requests sent out

        32 outgoing packets dropped

        30 dropped because of missing route

        Icmp:

        676 ICMP messages received

        5 input ICMP message failed.

        ICMP input histogram:

        destination unreachable: 44

        echo requests: 287

        echo replies: 345

        304 ICMP messages sent

        0 ICMP messages failed

        ICMP output histogram:

        destination unreachable: 17

        echo replies: 287

        Tcp:

        473 active connections openings

        28 passive connection openings

        4 failed connection attempts

        11 connection resets received

        1 connections established

        178253 segments received

        137936 segments send out

        29 segments retransmited

        0 bad segments received.

        336 resets sent

        Udp:

        5714 packets received

        8 packets to unknown port received.

        0 packet receive errors

        5419 packets sent

        TcpExt:

        1 resets received for embryonic SYN_RECV sockets

        ArpFilter: 0

        12 TCP sockets finished time wait in fast timer

        572 delayed acks sent

        3 delayed acks further delayed because of locked socket

        13766 packets directly queued to recvmsg prequeue.

        1101482 packets directly received from backlog

        19599861 packets directly received from prequeue

        46860 packets header predicted

        14541 packets header predicted and directly queued to user

        TCPPureAcks: 12259

        TCPHPAcks: 9119

        TCPRenoRecovery: 0

        TCPSackRecovery: 0

        TCPSACKReneging: 0

        TCPFACKReorder: 0

        TCPSACKReorder: 0

        TCPRenoReorder: 0

        TCPTSReorder: 0

        TCPFullUndo: 0

        TCPPartialUndo: 0

        TCPDSACKUndo: 0

        TCPLossUndo: 0

        TCPLoss: 0

        TCPLostRetransmit: 0

        TCPRenoFailures: 0

        TCPSackFailures: 0

        TCPLossFailures: 0

        TCPFastRetrans: 0

        TCPForwardRetrans: 0

        TCPSlowStartRetrans: 0

        TCPTimeouts: 29

        TCPRenoRecoveryFail: 0

        TCPSackRecoveryFail: 0

        TCPSchedulerFailed: 0

        TCPRcvCollapsed: 0

        TCPDSACKOldSent: 0

        TCPDSACKOfoSent: 0

        TCPDSACKRecv: 0

        TCPDSACKOfoRecv: 0

        TCPAbortOnSyn: 0

        TCPAbortOnData: 1

        TCPAbortOnClose: 0

        TCPAbortOnMemory: 0

        TCPAbortOnTimeout: 3

        TCPAbortOnLinger: 0

        TCPAbortFailed: 3

        TCPMemoryPressures: 0

        顯示監(jiān)聽的套接口

        # netstat -l

        Active Internet connections (only servers)

        Proto Recv-Q Send-Q Local Address Foreign Address State

        tcp 0 0 *:32769 *:* LISTEN

        tcp 0 0 *:nfs *:* LISTEN

        tcp 0 0 *:644 *:* LISTEN

        tcp 0 0 *:1002 *:* LISTEN

        tcp 0 0 *:netbios-ssn *:* LISTEN

        tcp 0 0 *:sunrpc *:* LISTEN

        tcp 0 0 vm-dev:ipp *:* LISTEN

        tcp 0 0 *:telnet *:* LISTEN

        tcp 0 0 *:601 *:* LISTEN

        tcp 0 0 *:microsoft-ds *:* LISTEN

        tcp 0 0 *:http *:* LISTEN

        tcp 0 0 *:ssh *:* LISTEN

        tcp 0 0 *:https *:* LISTEN

        udp 0 0 *:32768 *:*

        udp 0 0 *:nfs *:*

        udp 0 0 *:641 *:*

        udp 0 0 192.168.0.3:netbios-ns *:*

        udp 0 0 *:netbios-ns *:*

        udp 0 0 192.168.0.3:netbios-dgm *:*

        udp 0 0 *:netbios-dgm *:*

        udp 0 0 *:tftp *:*

        udp 0 0 *:999 *:*

        udp 0 0 *:sunrpc *:*

        udp 0 0 *:ipp *:*

        udp 0 0 *:1022 *:*

        udp 0 0 *:638 *:*

        Active UNIX domain sockets (only servers)

        Proto RefCnt Flags Type State I-Node Path

        unix 2 [ ACC ] STREAM LISTENING 10621 @/tmp/fam-root-

        unix 2 [ ACC ] STREAM LISTENING 7096 /var/run/acpid.socket

        unix 2 [ ACC ] STREAM LISTENING 9792 /tmp/.gdm_socket

        unix 2 [ ACC ] STREAM LISTENING 9927 /tmp/.X11-unix/X0

        unix 2 [ ACC ] STREAM LISTENING 10489 /tmp/ssh-lbUnUf4552/agent.4552

        unix 2 [ ACC ] STREAM LISTENING 10558 /tmp/ksocket-root/kdeinit__0

        unix 2 [ ACC ] STREAM LISTENING 10560 /tmp/ksocket-root/kdeinit-:0

        unix 2 [ ACC ] STREAM LISTENING 10570 /tmp/.ICE-unix/dcop4664-1270815442

        unix 2 [ ACC ] STREAM LISTENING 10843 /tmp/.ICE-unix/4735

        unix 2 [ ACC ] STREAM LISTENING 10591 /tmp/ksocket-root/klauncherah3arc.slave-socket

        unix 2 [ ACC ] STREAM LISTENING 7763 /var/run/iiim/.iiimp-unix/9010

        unix 2 [ ACC ] STREAM LISTENING 11047 /tmp/orbit-root/linc-1291-0-1e92c8082411

        unix 2 [ ACC ] STREAM LISTENING 11053 /tmp/orbit-root/linc-128e-0-dc070659cbb3

        unix 2 [ ACC ] STREAM LISTENING 8020 /var/run/dbus/system_bus_socket

        unix 2 [ ACC ] STREAM LISTENING 58927 /tmp/mcop-root/vm-dev-2c28-4beba75f

        unix 2 [ ACC ] STREAM LISTENING 7860 /tmp/.font-unix/fs7100

        unix 2 [ ACC ] STREAM LISTENING 7658 /dev/gpmctl

        unix 2 [ ACC ] STREAM LISTENING 10498 @/tmp/dbus-s2MLJGO5Ci

      linux端口查詢命令

      Linux系統(tǒng)需要了解端口占用情況的時(shí)候我們可以通過(guò)netstat命令來(lái)查看,下面由學(xué)習(xí)啦小編為大家整理了linux的端口查詢命令的相關(guān)知識(shí),希望對(duì)大家有幫助! linux的端口查詢命令詳解 在Linux使用過(guò)程中,需要了解當(dāng)前系統(tǒng)開放了哪些端口,
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