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linux端口查詢(xún)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(xún)命令的相關(guān)知識(shí),希望對(duì)大家有幫助!

  linux的端口查詢(xún)命令詳解

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

  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(tīng)套接字(所謂套接字就是使應(yīng)用程序能夠讀寫(xiě)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(chēng),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(xún),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(xún)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(hù)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(tīng)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(xún)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(xún)命令的相關(guān)知識(shí),希望對(duì)大家有幫助! linux的端口查詢(xún)命令詳解 在Linux使用過(guò)程中,需要了解當(dāng)前系統(tǒng)開(kāi)放了哪些端口,
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