ss¶
语法¶
ss(选项)
选项¶
-h | :显示帮助信息; |
-V | :显示指令版本信息; |
-n | :不解析服务名称,以数字方式显示; |
-a | :显示所有的套接字; |
-l | :显示处于监听状态的套接字; |
-o | :显示计时器信息; |
-m | :显示套接字的内存使用情况; |
-p | :显示使用套接字的进程信息; |
-i | :显示内部的TCP信息; |
-4 | :只显示ipv4的套接字; |
-6 | :只显示ipv6的套接字; |
-t | :只显示tcp套接字; |
-u | :只显示udp套接字; |
-d | :只显示DCCP套接字; |
-w | :仅显示RAW套接字; |
-x | :仅显示UNIX域套接字。 |
实例¶
显示ICP连接¶
[root@k8s3 ~]# ss -t -a
State Recv-Q Send-Q Local Address:Port Peer Address:Port
LISTEN 0 128 *:sunrpc *:*
LISTEN 0 128 *:ssh *:*
LISTEN 0 128 *:44988 *:*
LISTEN 0 128 *:zabbix-agent *:*
ESTAB 0 0 192.168.127.96:41108 192.168.127.61:ldap
ESTAB 0 0 192.168.127.96:corba-iiop-ssl 192.168.127.54:nfs
ESTAB 0 0 192.168.127.96:42718 192.168.127.59:4505
ESTAB 0 0 192.168.127.96:55862 192.168.127.59:4506
ESTAB 0 0 192.168.127.96:41134 192.168.127.61:ldap
ESTAB 0 52 192.168.127.96:ssh 192.168.127.38:57147
ESTAB 0 0 192.168.127.96:41132 192.168.127.61:ldap
ESTAB 0 0 192.168.127.96:41138 192.168.127.61:ldap
ESTAB 0 0 192.168.127.96:41140 192.168.127.61:ldap
LISTEN 0 128 :::58799 :::*
LISTEN 0 128 :::sunrpc :::*
LISTEN 0 128 :::ssh :::*
LISTEN 0 128 :::zabbix-agent :::*
[root@k8s3 ~]#
显示 Sockets 摘要¶
[root@k8s3 ~]# ss -s
Total: 548 (kernel 1071)
TCP: 17 (estab 9, closed 0, orphaned 0, synrecv 0, timewait 0/0), ports 0
Transport Total IP IPv6
* 1071 - -
RAW 1 0 1
UDP 12 7 5
TCP 17 13 4
INET 30 20 10
FRAG 0 0 0
列出所有打开的网络连接端口¶
[root@k8s3 ~]# ss -l
查看进程使用的socket¶
[root@k8s3 ~]# ss -pl
找出打开套接字/端口应用程序¶
ss -pl | grep 3306
显示所有UDP Sockets¶
[root@k8s3 ~]# ss -u -a
State Recv-Q Send-Q Local Address:Port Peer Address:Port
UNCONN 0 0 *:39451 *:*
UNCONN 0 0 *:bootpc *:*
UNCONN 0 0 *:sunrpc *:*
UNCONN 0 0 127.0.0.1:323 *:*
UNCONN 0 0 127.0.0.1:727 *:*
UNCONN 0 0 *:846 *:*
UNCONN 0 0 *:58456 *:*
UNCONN 0 0 :::31788 :::*
UNCONN 0 0 :::sunrpc :::*
UNCONN 0 0 :::53566 :::*
UNCONN 0 0 ::1:323 :::*
UNCONN 0 0 :::846 :::*