ss命令可以用来获取socket统计信息，它可以显示和netstat类似的内容。但ss的优势在于它能够显示更多更详细的有关TCP和连接状态的信息，而且比netstat更快速更高效。ss是Socket Statistics的缩写。
当服务器的socket连接数量变得非常大时，无论是使用netstat命令还是直接cat /proc/net/tcp，执行速度都会很慢。可能你不会有切身的感受，但请相信我，当服务器维持的连接达到上万个的时候，使用netstat等于浪费 生命，而用ss才是节省时间。
天下武功唯快不破。ss快的秘诀在于，它利用到了TCP协议栈中tcp_diag。tcp_diag是一个用于分析统计的模块，可以获得Linux 内核中第一手的信息，这就确保了ss的快捷高效。当然，如果你的系统中没有tcp_diag，ss也可以正常运行，只是效率会变得稍慢。(但仍然比 netstat要快。)
1.命令格式
ss [参数]
ss [参数] [过滤]
2.命令功能
ss(Socket Statistics的缩写)命令可以用来获取 socket统计信息，此命令输出的结果类似于 netstat输出的内容，但它能显示更多更详细的 TCP连接状态的信息，且比 netstat 更快速高效。它使用了 TCP协议栈中 tcp_diag(是一个用于分析统计的模块)，能直接从获得第一手内核信息，这就使得 ss命令快捷高效。在没有 tcp_diag，ss也可以正常运行。
3.命令参数
-h,--help帮助信息- -V, —version 程序版本信息
- -n, —numeric 不解析服务名称
- -r, —resolve 解析主机名
- -a, —all 显示所有套接字(sockets)
- -l, —listening 显示监听状态的套接字(sockets)
- -o, —options 显示计时器信息
- -e, —extended 显示详细的套接字(sockets)信息
- -m, —memory 显示套接字(socket)的内存使用情况
- -p, —processes 显示使用套接字(socket)的进程
- -i, —info 显示 TCP内部信息
- -s, —summary 显示套接字(socket)使用概况
- -4, —ipv4 仅显示IPv4的套接字(sockets)
- -6, —ipv6 仅显示IPv6的套接字(sockets)
- -0, —packet 显示 PACKET 套接字(socket)
- -t, —tcp 仅显示 TCP套接字(sockets)
- -u, —udp 仅显示 UCP套接字(sockets)
- -d, —dccp 仅显示 DCCP套接字(sockets)
- -w, —raw 仅显示 RAW套接字(sockets)
- -x, —unix 仅显示 Unix套接字(sockets)
- -f, —family=FAMILY 显示 FAMILY类型的套接字(sockets)，FAMILY可选，支持 unix, inet, inet6, link, netlink
- -A, —query=QUERY, —socket=QUERY
QUERY := {all|inet|tcp|udp|raw|unix|packet|netlink}[,QUERY] - -D, —diag=FILE 将原始TCP套接字(sockets)信息转储到文件
- -F, —filter=FILE 从文件中都去过滤器信息
FILTER := [ state TCP-STATE ] [ EXPRESSION ]
4.使用实例
实例1：显示TCP连接
命令：
ss -t -a
输出：
[zaixian@localhost ~]$ ss -t -a
State Recv-Q Send-Q Local Address:Port Peer Address:Port
LISTEN 0 128 *:ssh *:*
LISTEN 0 100 127.0.0.1:smtp *:*
ESTAB 0 52 192.168.0.197:ssh 192.168.0.5:54835
LISTEN 0 128 :::ssh :::*
LISTEN 0 100 ::1:smtp :::*
[zaixian@localhost ~]$
实例2：显示 Sockets 摘要
命令：
ss -s
输出：
[zaixian@localhost ~]$ ss -s
Total: 567 (kernel 0)
TCP: 5 (estab 1, closed 0, orphaned 0, synrecv 0, timewait 0/0), ports 0
Transport Total IP IPv6
* 0 - -
RAW 1 0 1
UDP 5 3 2
TCP 5 3 2
INET 11 6 5
FRAG 0 0 0
[zaixian@localhost ~]$
说明：列出当前的established, closed, orphaned and waiting TCP sockets
实例3：列出所有打开的网络连接端口
命令：
ss -l
输出：
[zaixian@localhost ~]$ ss -l
Netid State Recv-Q Send-Q Local Address:Port Peer Address:Port
nl UNCONN 0 0 rtnl:-1254096198 *
nl UNCONN 0 0 rtnl:kernel *
nl UNCONN 0 0 rtnl:-1254096198 *
nl UNCONN 4352 0 tcpdiag:ss/4750 *
nl UNCONN 768 0 tcpdiag:kernel *
nl UNCONN 0 0 xfrm:kernel *
nl UNCONN 0 0 selinux:su/4717 *
nl UNCONN 0 0 selinux:kernel *
nl UNCONN 0 0 selinux:systemd/1 *
nl UNCONN 0 0 selinux:dbus-daemon/648 *
nl UNCONN 0 0 selinux:su/4717 *
nl UNCONN 0 0 selinux:dbus-daemon/648 *
nl UNCONN 0 0 selinux:systemd/1 *
nl UNCONN 0 0 audit:auditd/625 *
nl UNCONN 0 0 audit:systemd/1 *
nl UNCONN 0 0 audit:kernel *
nl UNCONN 0 0 fiblookup:kernel *
nl UNCONN 0 0 connector:kernel *
nl UNCONN 0 0 nft:kernel *
nl UNCONN 0 0 uevent:-4117 *
nl UNCONN 0 0 uevent:systemd/1 *
nl UNCONN 0 0 uevent:-4120 *
nl UNCONN 0 0 uevent:-4107 *
nl UNCONN 0 0 uevent:systemd-udevd/498 *
nl UNCONN 0 0 uevent:-4119 *
nl UNCONN 0 0 uevent:systemd-logind/665 *
nl UNCONN 0 0 uevent:kernel *
nl UNCONN 0 0 uevent:NetworkManager/698 *
nl UNCONN 0 0 uevent:tuned/1002 *
nl UNCONN 0 0 uevent:-4118 *
nl UNCONN 0 0 uevent:tuned/1002 *
nl UNCONN 0 0 uevent:-4120 *
nl UNCONN 0 0 uevent:NetworkManager/698 *
nl UNCONN 0 0 uevent:-4119 *
nl UNCONN 0 0 uevent:-4118 *
nl UNCONN 0 0 uevent:-4117 *
nl UNCONN 0 0 uevent:systemd-logind/665 *
nl UNCONN 0 0 uevent:-4107 *
nl UNCONN 0 0 uevent:systemd/1 *
nl UNCONN 0 0 genl:kernel *
nl UNCONN 0 0 scsi-trans:kernel *
p_raw UNCONN 0 0 *:ens33 *
u_str LISTEN 0 128 /run/lvm/lvmpolld.socket 12805 * 0
u_seq LISTEN 0 128 /run/udev/control 12811 * 0
u_str LISTEN 0 128 /run/lvm/lvmetad.socket 12827 * 0
u_dgr UNCONN 0 0 /run/systemd/shutdownd 13100 * 0
u_str LISTEN 0 100 public/showq 19872 * 0
u_str LISTEN 0 100 private/rewrite 19842 * 0
u_str LISTEN 0 128 /var/run/dbus/system_bus_socket 15231 * 0
u_str LISTEN 0 100 private/bounce 19845 * 0
u_str LISTEN 0 100 private/defer 19848 * 0
u_str LISTEN 0 100 private/trace 19851 * 0
u_str LISTEN 0 100 private/verify 19854 * 0
u_str LISTEN 0 100 private/proxymap 19860 * 0
u_str LISTEN 0 100 private/proxywrite 19863 * 0
u_str LISTEN 0 100 private/smtp 19866 * 0
u_str LISTEN 0 100 private/relay 19869 * 0
u_str LISTEN 0 100 private/error 19875 * 0
u_str LISTEN 0 100 private/retry 19878 * 0
u_str LISTEN 0 100 private/discard 19881 * 0
u_str LISTEN 0 100 private/local 19884 * 0
u_str LISTEN 0 100 private/virtual 19887 * 0
u_str LISTEN 0 100 private/lmtp 19890 * 0
u_str LISTEN 0 100 private/anvil 19893 * 0
u_str LISTEN 0 100 private/scache 19896 * 0
u_str LISTEN 0 100 public/pickup 19822 * 0
u_str LISTEN 0 100 public/cleanup 19832 * 0
u_str LISTEN 0 100 public/qmgr 19835 * 0
u_str LISTEN 0 100 public/flush 19857 * 0
u_str LISTEN 0 10 /var/run/NetworkManager/private-dhcp 17836 * 0
u_dgr UNCONN 0 0 /run/systemd/notify 8385 * 0
u_dgr UNCONN 0 0 /run/systemd/cgroups-agent 8387 * 0
u_str LISTEN 0 100 private/tlsmgr 19839 * 0
u_str LISTEN 0 128 /run/systemd/journal/stdout 8395 * 0
u_dgr UNCONN 0 0 /run/systemd/journal/socket 8398 * 0
u_dgr UNCONN 0 0 /dev/log 8400 * 0
u_str LISTEN 0 128 /run/systemd/private 12794 * 0
u_dgr UNCONN 0 0 * 16501 * 8400
u_dgr UNCONN 0 0 * 80277 * 8400
u_dgr UNCONN 0 0 * 85014 * 8400
u_dgr UNCONN 0 0 * 16412 * 8400
u_dgr UNCONN 0 0 * 80112 * 8400
u_dgr UNCONN 0 0 * 85465 * 8400
u_dgr UNCONN 0 0 * 15509 * 8400
u_dgr UNCONN 0 0 * 82676 * 8400
u_dgr UNCONN 0 0 * 13285 * 8398
u_dgr UNCONN 0 0 * 19784 * 8400
u_dgr UNCONN 0 0 * 20011 * 8400
u_dgr UNCONN 0 0 * 16231 * 8400
u_dgr UNCONN 8 0 * 13816 * 13817
u_dgr UNCONN 0 0 * 16204 * 8400
u_dgr UNCONN 0 0 * 79889 * 8400
u_dgr UNCONN 0 0 * 16133 * 8398
u_dgr UNCONN 0 768 * 13817 * 13816
u_dgr UNCONN 0 0 * 13797 * 8398
u_dgr UNCONN 0 0 * 15143 * 8400
udp UNCONN 0 0 :::ipv6-icmp :::*
udp UNCONN 0 0 *:trnsprntproxy *:*
udp UNCONN 0 0 127.0.0.1:323 *:*
udp UNCONN 0 0 *:bootpc *:*
udp UNCONN 0 0 :::rnm :::*
udp UNCONN 0 0 ::1:323 :::*
tcp LISTEN 0 128 *:ssh *:*
tcp LISTEN 0 100 127.0.0.1:smtp *:*
tcp LISTEN 0 128 :::ssh :::*
tcp LISTEN 0 100 ::1:smtp :::*
[zaixian@localhost ~]$
实例4：查看进程使用的socket
命令：
ss -pl
输出：
[zaixian@localhost ~]$ ss -pl
Netid State Recv-Q Send-Q Local Address:Port
nl UNCONN 0 0 rtnl:-1254096198
nl UNCONN 0 0 rtnl:kernel
nl UNCONN 0 0 rtnl:-1254096198
nl UNCONN 4352 0 tcpdiag:ss/4871
nl UNCONN 768 0 tcpdiag:kernel
nl UNCONN 0 0 xfrm:kernel
nl UNCONN 0 0 selinux:su/4717
nl UNCONN 0 0 selinux:kernel
nl UNCONN 0 0 selinux:systemd/1
nl UNCONN 0 0 selinux:dbus-daemon/648
nl UNCONN 0 0 selinux:su/4717
nl UNCONN 0 0 selinux:dbus-daemon/648
nl UNCONN 0 0 selinux:systemd/1
nl UNCONN 0 0 audit:auditd/625
nl UNCONN 0 0 audit:systemd/1
nl UNCONN 0 0 audit:kernel
nl UNCONN 0 0 fiblookup:kernel
nl UNCONN 0 0 connector:kernel
nl UNCONN 0 0 nft:kernel
nl UNCONN 0 0 uevent:-4117
nl UNCONN 0 0 uevent:systemd/1
nl UNCONN 0 0 uevent:-4120
nl UNCONN 0 0 uevent:-4107
nl UNCONN 0 0 uevent:-4119
nl UNCONN 0 0 uevent:systemd-logind/665
nl UNCONN 0 0 uevent:kernel
nl UNCONN 0 0 uevent:NetworkManager/698
nl UNCONN 0 0 uevent:tuned/1002
nl UNCONN 0 0 uevent:-4118
nl UNCONN 0 0 uevent:tuned/1002
nl UNCONN 0 0 uevent:-4120
nl UNCONN 0 0 uevent:NetworkManager/698
nl UNCONN 0 0 uevent:-4119
nl UNCONN 0 0 uevent:-4118
nl UNCONN 0 0 uevent:-4117
nl UNCONN 0 0 uevent:systemd-logind/665
nl UNCONN 0 0 uevent:-4107
nl UNCONN 0 0 uevent:systemd/1
nl UNCONN 0 0 genl:kernel
nl UNCONN 0 0 scsi-trans:kernel
p_raw UNCONN 0 0 *:ens33
u_str LISTEN 0 128 /run/lvm/lvmpolld.socket 12805
u_seq LISTEN 0 128 /run/udev/control 12811
u_str LISTEN 0 128 /run/lvm/lvmetad.socket 12827
u_dgr UNCONN 0 0 /run/systemd/shutdownd 13100
u_str LISTEN 0 100 public/showq 19872
u_str LISTEN 0 100 private/rewrite 19842
u_str LISTEN 0 128 /var/run/dbus/system_bus_socket 15231
u_str LISTEN 0 100 private/bounce 19845
u_str LISTEN 0 100 private/defer 19848
u_str LISTEN 0 100 private/trace 19851
u_str LISTEN 0 100 private/verify 19854
u_str LISTEN 0 100 private/proxymap 19860
u_str LISTEN 0 100 private/proxywrite 19863
u_str LISTEN 0 100 private/smtp 19866
u_str LISTEN 0 100 private/relay 19869
u_str LISTEN 0 100 private/error 19875
u_str LISTEN 0 100 private/retry 19878
u_str LISTEN 0 100 private/discard 19881
u_str LISTEN 0 100 private/local 19884
u_str LISTEN 0 100 private/virtual 19887
u_str LISTEN 0 100 private/lmtp 19890
u_str LISTEN 0 100 private/anvil 19893
u_str LISTEN 0 100 private/scache 19896
u_str LISTEN 0 100 public/pickup 19822
u_str LISTEN 0 100 public/cleanup 19832
u_str LISTEN 0 100 public/qmgr 19835
u_str LISTEN 0 100 public/flush 19857
u_str LISTEN 0 10 /var/run/NetworkManager/private-dhcp 17836
u_dgr UNCONN 0 0 /run/systemd/notify 8385
u_dgr UNCONN 0 0 /run/systemd/cgroups-agent 8387
u_str LISTEN 0 100 private/tlsmgr 19839
u_str LISTEN 0 128 /run/systemd/journal/stdout 8395
u_dgr UNCONN 0 0 /run/systemd/journal/socket 8398
u_dgr UNCONN 0 0 /dev/log 8400
u_str LISTEN 0 128 /run/systemd/private 12794
u_dgr UNCONN 0 0 * 16501
u_dgr UNCONN 0 0 * 80277
u_dgr UNCONN 0 0 * 85014
u_dgr UNCONN 0 0 * 16412
u_dgr UNCONN 0 0 * 80112
u_dgr UNCONN 0 0 * 85465
u_dgr UNCONN 0 0 * 15509
u_dgr UNCONN 0 0 * 82676
u_dgr UNCONN 0 0 * 13285
u_dgr UNCONN 0 0 * 19784
u_dgr UNCONN 0 0 * 20011
u_dgr UNCONN 0 0 * 16231
u_dgr UNCONN 0 0 * 13816
u_dgr UNCONN 0 0 * 16204
u_dgr UNCONN 0 0 * 79889
u_dgr UNCONN 0 0 * 16133
u_dgr UNCONN 0 0 * 13817
u_dgr UNCONN 0 0 * 13797
u_dgr UNCONN 0 0 * 15143
udp UNCONN 0 0 :::ipv6-icmp
udp UNCONN 0 0 *:trnsprntproxy
udp UNCONN 0 0 127.0.0.1:323
udp UNCONN 0 0 *:bootpc
udp UNCONN 0 0 :::rnm
udp UNCONN 0 0 ::1:323
tcp LISTEN 0 128 *:ssh
tcp LISTEN 0 100 127.0.0.1:smtp
tcp LISTEN 0 128 :::ssh
tcp LISTEN 0 100 ::1:smtp
[zaixian@localhost ~]$
实例5：找出打开套接字/端口应用程序
命令：
ss -lp | grep 23
输出：
[zaixian@localhost ~]$ ss -lp | grep 23
u_str LISTEN 0 128 /var/run/dbus/system_bus_socket 15231 * 0
u_dgr UNCONN 0 0 * 16231 * 8400
udp UNCONN 0 0 127.0.0.1:323 *:*
udp UNCONN 0 0 ::1:323 :::*
[zaixian@localhost ~]$
实例6：显示所有UDP Sockets
命令：
ss -u -a
输出：
[zaixian@localhost ~]$ ss -u -a
State Recv-Q Send-Q Local Address:Port Peer Address:Port
UNCONN 0 0 *:trnsprntproxy *:*
UNCONN 0 0 127.0.0.1:323 *:*
UNCONN 0 0 *:bootpc *:*
UNCONN 0 0 :::rnm :::*
UNCONN 0 0 ::1:323 :::*
[zaixian@localhost ~]$
实例7：显示所有状态为established的SMTP连接
命令：
ss -o state established '( dport = :ssh or sport = :ssh )'
输出：
[zaixian@localhost ~]$ ss -o state established '( dport = :ssh or sport = :ssh )'
Netid Recv-Q Send-Q Local Address:Port Peer Address:Port
tcp 0 52 192.168.0.197:ssh 192.168.0.5:54835 timer:(on,241ms,0)
[zaixian@localhost ~]$
实例8：显示所有状态为Established的ssh连接
命令：
ss -o state established '( dport = :ssh or sport = :ssh )'
输出：
[zaixian@localhost ~]$ ss -o state established '( dport = :ssh or sport = :ssh )'
Netid Recv-Q Send-Q Local Address:Port Peer Address:Port
tcp 0 52 192.168.0.197:ssh 192.168.0.5:54835 timer:(on,248ms,0)
[zaixian@localhost ~]$
实例9：列举出处于 FIN-WAIT-1状态的源端口为 80或者 443，目标网络为 193.233.7/24所有 tcp套接字
命令：
ss -o state fin-wait-1 ‘( sport = :http or sport = :http )’ dst 193.233.7/24
输出：自已动手测试一下吧、
实例10：用TCP 状态过滤Sockets
命令：
ss -4 state FILTER-NAME-HERE
ss -6 state FILTER-NAME-HERE
输出：
[zaixian@localhost ~]$ ss -4 state closing
Netid Recv-Q Send-Q Local Address:Port Peer Address:Port
[zaixian@localhost ~]$
说明：FILTER-NAME-HERE 可以代表以下任何一个：
establishedsyn-sentsyn-recvfin-wait-1fin-wait-2time-waitclosedclose-waitlast-acklistenclosingall: 所有以上状态connected: 除了listen and closed的所有状态synchronized:所有已连接的状态除了syn-sentbucket: 显示状态为maintained as minisockets,如：time-wait和syn-recv.big: 和bucket相反.
实例11：匹配远程地址和端口号
命令：
ss dst 192.168.0.5
ss dst 192.168.0.113:http
ss dst 192.168.0.113:smtp
ss dst 192.168.0.113:443
输出：
[zaixian@localhost ~]$ ss dst 192.168.0.5
Netid State Recv-Q Send-Q Local Address:Port Peer Address:Port
tcp ESTAB 0 52 192.168.0.197:ssh 192.168.0.5:54835
[zaixian@localhost ~]$
实例12：匹配本地地址和端口号
命令：
ss src 192.168.0.197
ss src 192.168.0.197:http
ss src 192.168.0.197:80
ss src 192.168.0.197:smtp
ss src 192.168.0.197:25
输出：
实例13：将本地或者远程端口和一个数比较
命令：
ss dport OP PORT
ss sport OP PORT
输出：
[root@localhost ~]# ss sport = :http
[root@localhost ~]# ss dport = :http
[root@localhost ~]# ss dport \> :1024
[root@localhost ~]# ss sport \> :1024
[root@localhost ~]# ss sport \< :32000
[root@localhost ~]# ss sport eq :22
[root@localhost ~]# ss dport != :22
[root@localhost ~]# ss state connected sport = :http
[root@localhost ~]# ss \( sport = :http or sport = :http \)
[root@localhost ~]# ss -o state fin-wait-1 \( sport = :http or sport = :http \) dst 192.168.0/24
说明：
ss dport OP PORT 远程端口和一个数比较；ss sport OP PORT 本地端口和一个数比较。
OP 可以代表以下任意一个:
<=或le: 小于或等于端口号>=或ge: 大于或等于端口号==或eq: 等于端口号!=或ne: 不等于端口号<或gt: 小于端口号>或lt: 大于端口号
实例14：ss 和 netstat 效率对比
命令：
time netstat -at
time ss
输出：
[zaixian@localhost ~]$ time netstat -at
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 0.0.0.0:ssh 0.0.0.0:* LISTEN
tcp 0 0 localhost:smtp 0.0.0.0:* LISTEN
tcp 0 52 localhost.localdoma:ssh 192.168.0.5:54835 ESTABLISHED
tcp6 0 0 [::]:http [::]:* LISTEN
tcp6 0 0 [::]:ssh [::]:* LISTEN
tcp6 0 0 localhost:smtp [::]:* LISTEN
real 0m0.119s
user 0m0.006s
sys 0m0.021s
[zaixian@localhost ~]$ time ss
Netid State Recv-Q Send-Q Local Address:Port Peer Address:Port
u_str ESTAB 0 0 * 19870 * 19871
u_str ESTAB 0 0 * 19850 * 19849
u_str ESTAB 0 0 * 19871 * 19870
u_str ESTAB 0 0 * 19830 * 19829
u_str ESTAB 0 0 * 16422 * 16423
u_str ESTAB 0 0 * 19852 * 19853
u_str ESTAB 0 0 /var/run/dbus/system_bus_socket 16423 * 16422
u_str ESTAB 0 0 * 19873 * 19874
u_str ESTAB 0 0 * 19874 * 19873
u_str ESTAB 0 0 * 15501 * 15502
u_str ESTAB 0 0 * 19847 * 19846
u_str ESTAB 0 0 * 19821 * 19820
u_str ESTAB 0 0 * 19849 * 19850
u_str ESTAB 0 0 * 19844 * 19843
u_str ESTAB 0 0 * 19820 * 19821
u_str ESTAB 0 0 * 19876 * 19877
u_str ESTAB 0 0 * 19833 * 19834
u_str ESTAB 0 0 * 19877 * 19876
u_str ESTAB 0 0 * 16576 * 16577
u_str ESTAB 0 0 * 19879 * 19880
u_str ESTAB 0 0 * 19829 * 19830
u_str ESTAB 0 0 * 19880 * 19879
u_str ESTAB 0 0 /run/systemd/journal/stdout 15803 * 15802
u_str ESTAB 0 0 * 19882 * 19883
u_str ESTAB 0 0 * 19263 * 19264
u_str ESTAB 0 0 * 19883 * 19882
u_str ESTAB 0 0 * 19853 * 19852
u_str ESTAB 0 0 * 19855 * 19856
u_str ESTAB 0 0 * 15802 * 15803
u_str ESTAB 0 0 * 19856 * 19855
u_str ESTAB 0 0 /run/systemd/journal/stdout 15502 * 15501
u_str ESTAB 0 0 * 80280 * 80281
u_str ESTAB 0 0 * 19858 * 19859
u_str ESTAB 0 0 * 19859 * 19858
u_str ESTAB 0 0 * 80281 * 80280
u_str ESTAB 0 0 * 19861 * 19862
u_str ESTAB 0 0 * 19843 * 19844
u_str ESTAB 0 0 * 19862 * 19861
u_str ESTAB 0 0 * 15457 * 15613
u_str ESTAB 0 0 * 19864 * 19865
u_str ESTAB 0 0 /var/run/dbus/system_bus_socket 15613 * 15457
u_str ESTAB 0 0 * 19865 * 19864
u_str ESTAB 0 0 * 19846 * 19847
u_str ESTAB 0 0 * 19867 * 19868
u_str ESTAB 0 0 /var/run/dbus/system_bus_socket 16577 * 16576
u_str ESTAB 0 0 * 19868 * 19867
u_str ESTAB 0 0 /var/run/dbus/system_bus_socket 19264 * 19263
u_str ESTAB 0 0 /var/run/dbus/system_bus_socket 16129 * 16128
u_str ESTAB 0 0 * 13393 * 13530
u_str ESTAB 0 0 * 19837 * 19836
u_str ESTAB 0 0 /run/systemd/journal/stdout 13530 * 13393
u_str ESTAB 0 0 /run/systemd/journal/stdout 16379 * 16378
u_str ESTAB 0 0 * 16160 * 16161
u_str ESTAB 0 0 /run/systemd/journal/stdout 13796 * 13777
u_str ESTAB 0 0 /run/systemd/journal/stdout 15732 * 15731
u_str ESTAB 0 0 * 15611 * 15612
u_str ESTAB 0 0 /run/systemd/journal/stdout 95329 * 95327
u_str ESTAB 0 0 * 13777 * 13796
u_str ESTAB 0 0 /run/systemd/journal/stdout 16106 * 16105
u_str ESTAB 0 0 * 19840 * 19841
u_str ESTAB 0 0 * 16105 * 16106
u_str ESTAB 0 0 * 19885 * 19886
u_str ESTAB 0 0 /run/systemd/journal/stdout 18433 * 18432
u_str ESTAB 0 0 * 19886 * 19885
u_str ESTAB 0 0 /var/run/dbus/system_bus_socket 16161 * 16160
u_str ESTAB 0 0 * 16378 * 16379
u_str ESTAB 0 0 * 19888 * 19889
u_str ESTAB 0 0 * 15612 * 15611
u_str ESTAB 0 0 * 18432 * 18433
u_str ESTAB 0 0 * 19889 * 19888
u_str ESTAB 0 0 * 15731 * 15732
u_str ESTAB 0 0 * 95327 * 95329
u_str ESTAB 0 0 * 19834 * 19833
u_str ESTAB 0 0 * 19891 * 19892
u_str ESTAB 0 0 * 19841 * 19840
u_str ESTAB 0 0 * 19836 * 19837
u_str ESTAB 0 0 * 19892 * 19891
u_str ESTAB 0 0 * 15152 * 15153
u_str ESTAB 0 0 * 16128 * 16129
u_str ESTAB 0 0 * 19894 * 19895
u_str ESTAB 0 0 * 19895 * 19894
u_str ESTAB 0 0 * 15153 * 15152
u_str ESTAB 0 0 * 19897 * 19898
u_str ESTAB 0 0 * 19898 * 19897
udp ESTAB 0 0 192.168.0.197:33196 85.199.214.100:ntp
tcp ESTAB 0 0 192.168.0.197:ssh 192.168.0.5:54835
real 0m0.009s
user 0m0.000s
sys 0m0.005s
[zaixian@localhost ~]$