nc基础用法6

franket

发布于 2022-04-24 00:14:51

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文章被收录于专栏：技术杂记技术杂记

使用下面方法可以手动指定源IP(顺便也可以使用-p来指定端口)

root@h101 grub# ip a

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN

link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00

inet 127.0.0.1/8 scope host lo

inet6 ::1/128 scope host

   valid_lft forever preferred_lft forever

2: eth3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000

link/ether 00:0c:29:56:78:05 brd ff:ff:ff:ff:ff:ff

inet 192.168.2.84/24 brd 192.168.2.255 scope global eth3

inet6 fe80::20c:29ff:fe56:7805/64 scope link

   valid_lft forever preferred_lft forever

3: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000

link/ether 00:0c:29:56:78:0f brd ff:ff:ff:ff:ff:ff

inet 192.168.100.101/24 brd 192.168.100.255 scope global eth2

inet 192.168.100.105/24 scope global secondary eth2

inet6 fe80::20c:29ff:fe56:780f/64 scope link

   valid_lft forever preferred_lft forever

root@h101 grub# nc h102 520 -s 192.168.100.105 -p 45678

root@h102 ~# netstat -ant | grep 520

tcp 0 0 0.0.0.0:520 0.0.0.0:* LISTEN

tcp 0 0 192.168.100.102:520 192.168.100.105:45678 ESTABLISHED

root@h102 ~#

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