linux nc命令常用用法
from:http://my.oschina.net/davehe/blog/261845
linux nc命令常用用法
NetCat,在网络工具中有“瑞士军刀”美誉,其有Windows和Linux的版本。因为它短小精悍,功能实用,被设计为一个简单、可靠的网络工具,可通过TCP或UDP协议传输读写数据。同时,它还是一个网络应用Debug分析器,因为它可以根据需要创建各种不同类型的网络连接。
先来看下它的基本用法:
[email protected]:~# nc -h [v1.10-38] connect to somewhere: nc [-options] hostname port[s] [ports] ... listen for inbound: nc -l -p port [-options] [hostname] [port] options: -c shell commands as `-e'; use /bin/sh to exec [dangerous!!] -e filename program to exec after connect [dangerous!!] -b allow broadcasts -g gateway source-routing hop point[s], up to 8 设置路由器跃程通信网关,最高可设置8个。 -G num source-routing pointer: 4, 8, 12, ... 设置来源路由指向器,其数值为4的倍数。 -h this cruft -i secs delay interval for lines sent, ports sca 延时的间隔 -k set keepalive option on socket -l listen mode, for inbound connects 监听模式,入站连接 -n numeric-only IP addresses, no DNS 直接使用ip地址,而不用域名服务器 -o file hex dump of traffic 指定文件名称,把往来传输的数据以16进制字码倾倒成该文件保存。 -p port local port number 本地端口 -r randomize local and remote ports 随机本地和远程端口 -q secs quit after EOF on stdin and delay of secs -s addr local source address -T tos set Type Of Service -t answer TELNET negotiation -u UDP mode udp 模式 -v verbose [use twice to be more verbose] 显示过程,vv 更多 -w secs timeout for connects and final net reads 等待连接超时 -z zero-I/O mode [used for scanning] 使用输入/输出模式,只在扫描通信端口时使用。
1.监听本地端口
[email protected]:~# nc -l -p 1234 [email protected]:~# netstat -tunlp | grep 1234 tcp 0 0 0.0.0.0:1234 0.0.0.0:* LISTEN 15543/nc
2.端口扫描
[email protected]:~# nc -v -w 10 10.1.1.180 80 (UNKNOWN) [10.1.1.180] 80 (www) open [email protected]:~# nc -v -w 10 10.1.1.180 -z 80-30000 (UNKNOWN) [10.1.1.180] 22000 (?) open (UNKNOWN) [10.1.1.180] 80 (www) open
3.文件传出
源10.1.1.43 text.txt
目的 10.1.1.180
root@10:~# nc -l -p 1234 > test.txt #开10.1.1.180:1234端口监听,并将socket传输过来的数据重定向到test.txt文件 test 43 nc [email protected]:~#cat test.txt [email protected]:~# nc 10.1.1.180 1234 < test.txt #连接远程的10.1.1.180,从test.txt的路径从定向到socket,从而将文件传输到远方。 root@10:~# cat test.txt test 43 nc
4.目录传输
源10.1.1.43 python_program
目的 10.1.1.180
root@10:~# nc -l -p 1234 | tar xzvf - [email protected]:~# tar czvf - python_program | nc 10.1.1.180 1234 python_program/ python_program/1.py python_program/4.py python_program/3.py
5.测试UDP端口
[email protected]:web# netstat -tunlp Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1111/sshd udp 0 0 0.0.0.0:68 0.0.0.0:* 887/dhclient [email protected]:~# nc -vuz 172.16.211.34 68 Connection to 172.16.211.34 68 port [udp/bootpc] succeeded!
参考:
NetCat 官方地址:http://netcat.sourceforge.net/
=
+
+
9
8'
相关推荐
farwang 2020-11-25
星愿心愿 2020-11-24
tianhuak 2020-11-24
zhjn0 2020-11-24
昭君出塞 2020-11-23
bluecarrot 2020-11-23
linuxwcj 2020-10-21
以梦为马不负韶华 2020-10-20
彼岸随笔 2020-10-20
yutou0 2020-10-17
applecarelte 2020-10-16
ourtimes 2020-10-16
waterhorse 2020-09-19
MRFENGG 2020-11-11
rainandtear 2020-10-30
kyssfanhui 2020-10-20
liuhangtiant 2020-10-20