why i can`t use the option --host-time

["liuruihong" <liuruihong () baidu com>]

I  ran the nmap by crontab,

My script file is:

/home/liuruihong/port/portscan-t3:

#!/bin/sh

  nmap -n -T4 --initial-rtt-timeout 1000 --host-timeout 1800000
211.94.144.0/24 >> result-t3

 

# crontab -l

21 21 * * * cd /home/liuruihong/port;./portscan-t3 

 

The result is :

# cat result-t3-Mon 

Nmap 3.70 Usage: nmap [Scan Type(s)] [Options] <host or net list>

Some Common Scan Types ('*' options require root privileges)

* -sS TCP SYN stealth port scan (default if privileged (root))

  -sT TCP connect() port scan (default for unprivileged users)

* -sU UDP port scan

  -sP ping scan (Find any reachable machines)

* -sF,-sX,-sN Stealth FIN, Xmas, or Null scan (experts only)

........

.......

 

I donn`t know why?

 


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