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netstat命令來查看,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,希望對大家有幫助!
linux的端口查詢命令詳解
在Linux使用過程中,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netstat命令進(jìn)行簡單查詢
netstat命令各個(gè)參數(shù)說明如下:
-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
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