linux 如何察看系统开放的端口? netstat

    技术2022-05-11  65

     

    如何察看系统开放的端口?

    技巧管理员(2000-12-22 18:32)〖返回〗〖转发〗

    可以是用命令:netstat -lnp来察看系统当前监听的端口。其中l选项表示显示正在被监听(listen)的端口;n选项表示直接显示端口数字而不是通过察看/etc/service来转换为端口名;p选项表示列出监听的程序。例如:netsat -lActive Internet connections (only servers)Proto Recv-Q Send-Q Local Address           Foreign Address         Statetcp        0      0 *:mysql                 *:*                     LISTENtcp        0      0 *:netbios-ssn           *:*                     LISTENtcp        0      0 *:swat                  *:*                     LISTENtcp        0      0 *:www                   *:*                     LISTENtcp        0      0 *:linuxconf             *:*                     LISTENtcp        0      0 *:finger                *:*                     LISTENtcp        0      0 *:login                 *:*                     LISTENtcp        0      0 *:shell                 *:*                     LISTENtcp        0      0 *:telnet                *:*                     LISTENtcp        0      0 *:ftp                   *:*                     LISTENudp        0      0 radiusd.301:netbios-dgm *:*udp        0      0 radiusd.301h:netbios-ns *:*udp        0      0 *:netbios-dgm           *:*udp        0      0 *:netbios-ns            *:*udp        0      0 *:ntalk                 *:*udp        0      0 *:talk                  *:*raw        0      0 *:icmp                  *:*                     7raw        0      0 *:tcp                   *:*                     7Active UNIX domain sockets (only servers)Proto RefCnt Flags       Type       State         I-Node Pathunix  0      [ ACC ]     STREAM     LISTENING     40250  /tmp/mysql.socknetstat -lnProto Recv-Q Send-Q Local Address           Foreign Address         Statetcp        0      0 0.0.0.0:3306            0.0.0.0:*               LISTENtcp        0      0 0.0.0.0:139             0.0.0.0:*               LISTENtcp        0      0 0.0.0.0:901             0.0.0.0:*               LISTENtcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTENtcp        0      0 0.0.0.0:98              0.0.0.0:*               LISTENtcp        0      0 0.0.0.0:79              0.0.0.0:*               LISTENtcp        0      0 0.0.0.0:513             0.0.0.0:*               LISTENtcp        0      0 0.0.0.0:514             0.0.0.0:*               LISTENtcp        0      0 0.0.0.0:23              0.0.0.0:*               LISTENtcp        0      0 0.0.0.0:21              0.0.0.0:*               LISTENudp        0      0 192.168.2.33:138        0.0.0.0:*udp        0      0 192.168.2.33:137        0.0.0.0:*udp        0      0 0.0.0.0:138             0.0.0.0:*udp        0      0 0.0.0.0:137             0.0.0.0:*udp        0      0 0.0.0.0:518             0.0.0.0:*udp        0      0 0.0.0.0:517             0.0.0.0:*raw        0      0 0.0.0.0:1               0.0.0.0:*               7raw        0      0 0.0.0.0:6               0.0.0.0:*               7Active UNIX domain sockets (only servers)Proto RefCnt Flags       Type       State         I-Node Pathunix  0      [ ACC ]     STREAM     LISTENING     40250  /tmp/mysql.sock


    最新回复(0)