1.下载安装包
wget https://sourceforge.net/projects/netcat/files/netcat/0.7.1/netcat-0.7.1.tar.gz
2.解压缩文件
tar -zxvf netcat-0.7.1.tar.gz -C /usr/local
3.切换至/usr/local/netcat-0.7.1
查看编译配置文件
./configure
编译安装
make && make install
4.使用
[root@centos ~]# netcat -t 192.168.15.140 8728 -vv
[root@centos ~]# netcat -help
GNU netcat 0.7.1, a rewrite of the famous networking tool.
Basic usages:
connect to somewhere: netcat [options] hostname port [port] ...
listen for inbound: netcat -l -p port [options] [hostname] [port] ...
tunnel to somewhere: netcat -L hostname:port -p port [options]
Mandatory arguments to long options are mandatory for short options too.
Options:
-c, --close close connection on EOF from stdin
-e, --exec=PROGRAM program to exec after connect
-g, --gateway=LIST source-routing hop point[s], up to 8
-G, --pointer=NUM source-routing pointer: 4, 8, 12, ...
-h, --help display this help and exit
-i, --interval=SECS delay interval for lines sent, ports scanned
-l, --listen listen mode, for inbound connects
-L, --tunnel=ADDRESS:PORT forward local port to remote address
-n, --dont-resolve numeric-only IP addresses, no DNS
-o, --output=FILE output hexdump traffic to FILE (implies -x)
-p, --local-port=NUM local port number
-r, --randomize randomize local and remote ports
-s, --source=ADDRESS local source address (ip or hostname)
-t, --tcp TCP mode (default)
-T, --telnet answer using TELNET negotiation
-u, --udp UDP mode
-v, --verbose verbose (use twice to be more verbose)
-V, --version output version information and exit
-x, --hexdump hexdump incoming and outgoing traffic
-w, --wait=SECS timeout for connects and final net reads
-z, --zero zero-I/O mode (used for scanning)
Remote port number can also be specified as range. Example: '1-1024'