查看freebsd端口对应程序
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来源 操作系统
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发布时间 2012-06-29
在freebsd下sockstat命令可以查看当前系统侦听端口的程序。和已建立的连接等。其格式如下 SOCKSTAT(1) FreeBSD General Commands Manual SOCKSTAT(1) NAME sockstat -- list open sockets SYNOPSIS sockstat [-46clu] [-p ports] DESCRIPTION The sockstat command lists open Internet or UNIX domain sockets. The following options are available: -4 Show AF_INET (IPv4) sockets. -6 Show AF_INET6 (IPv6) sockets. -c Show connected sockets. -l Show listening sockets. -p ports Only show Internet sockets if either the local or foreign port number is on the specified list. The ports argument is a comma-separated list of port numbers and ranges specified as first and last port separated by a dash. -u Show AF_LOCAL (UNIX) sockets. If neither -4, -6 or -u is specified, sockstat will list sockets in all three domains. If neither -c or -l is specified, sockstat will list both listening and connected sockets. The information listed for each socket is: USER The user who owns the socket. COMMAND The command which holds the socket. PID The process ID of the command which holds the socket. FD The file descriptor number of the socket. PROTO The transport protocol associated with the socket for Internet sockets, or the type of socket (stream or data- gram) for UNIX sockets. LOCAL ADDRESS For Internet sockets, this is the address the local end of the socket is bound to (see getsockname(2)). For bound UNIX sockets, it is the socket''s filename. For other UNIX sockets, it is a right arrow followed by the endpoint''s filename, or ``??'''' if the endpoint could not be determined. FOREIGN ADDRESS (Internet sockets only) The address the foreign end of the socket is bound to (see getpeername(2)). Note that TCP sockets in the AF_INET or AF_INET6 domains that are not in one of the LISTEN, SYN_SENT, or ESTABLISHED states may not be shown by sockstat; use netstat(1) to examine them instead. 简单地说 sockstat -4l ——可以查看侦听端口的程序，其中4表示ipv4，l表示listen sockstat -4c ——可以查看已建立的连接状况。 sockstat -4 ——等于上述两个命令的和。 |
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