下载源码包：http://netcat.sourceforge.net/download.php
# tar -xzvf netcat-0.7.1.tar.gz
[root@znode02 netcat-0.7.1]# ls
ABOUT-NLS config.guess configure INSTALL Makefile.am NEWS TODO
aclocal.m4 config.h.in configure.ac install-sh Makefile.in po
AUTHORS config.rpath COPYING lib missing README
ChangeLog config.sub doc m4 mkinstalldirs src
# mkdir /apps
# ./configure --prefix=/apps/nc
[root@znode02 netcat-0.7.1]# ls
ABOUT-NLS config.h config.sub INSTALL Makefile.am po
aclocal.m4 config.h.in configure install-sh Makefile.in README
AUTHORS config.log configure.ac lib missing src
ChangeLog config.rpath COPYING m4 mkinstalldirs stamp-h1
config.guess config.status doc Makefile NEWS TODO
]# make && make install
# tree /apps/nc
/apps/nc
├── bin
│ ├── nc -> netcat
│ └── netcat
├── info
│ ├── dir
│ └── netcat.info
├── man
│ └── man1
│ └── netcat.1
└── share
└── locale
├── it
│ └── LC_MESSAGES
│ └── netcat.mo
└── sk
└── LC_MESSAGES
└── netcat.mo
10 directories, 7 files增加环境变量：
# cat /root/.bash_profile
# .bash_profile
# Get the aliases and functions
if [ -f ~/.bashrc ]; then
. ~/.bashrc
fi
# User specific environment and startup programs
PATH=$PATH:$HOME/bin
NC=/apps/nc
PATH=$PATH:$NC/bin
export PATH# source ~/.bash_profile验证：
# nc -h
GNU netcat 0.7.1, a rewrite of the famous networking tool.
Basic usages:
connect to somewhere: nc [options] hostname port [port] ...
listen for inbound: nc -l -p port [options] [hostname] [port] ...
tunnel to somewhere: nc -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'网名：bass 分享技术 突破难点 创新思维
