当前位置：首页 > news >正文

linux 端口查询命令

news 2025/9/11 7:36:30

任何知识都是用进废退，有段时间没摸linux，这大脑里的知识点仿佛全部消失了，就无语。索性，再写一篇记录，加强一下记忆，下次需要就看自己的资料好了。

lsof命令

Linux端口查询命令可以通过lsof实现：

lsof : List Open Files的缩写，可列出各种进程打开的文件信息，如下图所示：

直接使用lsof 命令得出的是当前所有的信息，会有很多，因此一般可以通过结合参数来获取更加精确的信息，命令的具体参数，我们可以通过 --help 命令来查询：

[root@localhost 桌面]# lsof --help
lsof: illegal option character: -
lsof: -e not followed by a file system path: "lp"
lsof 4.91latest revision: ftp://lsof.itap.purdue.edu/pub/tools/unix/lsof/latest FAQ: ftp://lsof.itap.purdue.edu/pub/tools/unix/lsof/FAQlatest man page: ftp://lsof.itap.purdue.edu/pub/tools/unix/lsof/lsof_manusage: [-?abhKlnNoOPRtUvVX] [+|-c c] [+|-d s] [+D D] [+|-E] [+|-e s] [+|-f[gG]][-F [f]] [-g [s]] [-i [i]] [+|-L [l]] [+m [m]] [+|-M] [-o [o]] [-p s][+|-r [t]] [-s [p:s]] [-S [t]] [-T [t]] [-u s] [+|-w] [-x [fl]] [--] [names]
Defaults in parentheses; comma-separated set (s) items; dash-separated ranges.-?|-h list help          -a AND selections (OR)     -b avoid kernel blocks-c c  cmd c ^c /c/[bix]  +c w  COMMAND width (9)    +d s  dir s files-d s  select by FD set   +D D  dir D tree *SLOW?*   +|-e s  exempt s *RISKY*-i select IPv[46] files  -K [i] list|(i)gn tasKs    -l list UID numbers-n no host names         -N select NFS files        -o list file offset-O no overhead *RISKY*   -P no port names           -R list paRent PID-s list file size        -t terse listing           -T disable TCP/TPI info-U select Unix socket    -v list version info       -V verbose search+|-w  Warnings (+)       -X skip TCP&UDP* files     -Z Z  context [Z]-- end option scan     -E display endpoint info              +E display endpoint info and files+f|-f  +filesystem or -file names     +|-f[gG] flaGs -F [f] select fields; -F? for help  +|-L [l] list (+) suppress (-) link counts < l (0 = all; default = 0)+m [m] use|create mount supplement+|-M   portMap registration (-)       -o o   o 0t offset digits (8)-p s   exclude(^)|select PIDs         -S [t] t second stat timeout (15)-T qs TCP/TPI Q,St (s) info-g [s] exclude(^)|select and print process group IDs-i i   select by IPv[46] address: [46][proto][@host|addr][:svc_list|port_list]+|-r [t[m<fmt>]] repeat every t seconds (15);  + until no files, - forever.An optional suffix to t is m<fmt>; m must separate t from <fmt> and<fmt> is an strftime(3) format for the marker line.-s p:s  exclude(^)|select protocol (p = TCP|UDP) states by name(s).-u s   exclude(^)|select login|UID set s-x [fl] cross over +d|+D File systems or symbolic Linksnames  select named files or files on named file systems
Anyone can list all files; /dev warnings disabled; kernel ID check disabled.
[root@localhost 桌面]#

常用的结合命令使用的参数有：