TCP ports reports

[Olivier LEGRAND]

Hi,

I just want to regularly check with a shell script my open TCP ports.

How can I do that?

Regards for your help.

[harry d brown jr]

Get lsof:

http://hpux.cs.utah.edu/hppd/hpux/Sysadmin/lsof-4.61/


live free or die
harry

[MARTINACHE]

netstat -an |grep LISTEN |sort -u

[Tore_1]

perhaps something like :

in shell script :


netstat -an | grep tcp | mailx -s "open tcp ports" youmailaddress

schedule the shell script to run from crontab.

If you have lsof installed, you can substitute
netstat with lsof -i tcp .

[Steve Steel]

Hi


lsof is a good tool


else

#!/bin/ksh
netstat -an |head -n 2
netstat -an |tail -n +3|grep tcp


Steve Steel

[harry d brown jr]

Olivier,

code sniplet for KSH using lsof:

WHOAMI=$$
#
# "tr" is used to remove all extra spaces,
# TWO SPACES in first pair of quotes, ("bb" - where b = blank) then
# ONE SPACE in second pair of quotes ("b" - where b = blank)
#
WHATisSOCKET=`//usr/local/bin/lsof -U -a -p $WHOAMI|grep " 0t"|tr -s " " " "|cut -d"
" -f9`


echo $WHATisSOCKET

live free or die
harry

[harry d brown jr]

Or

WHATisSOCKET=`/usr/local/bin/lsof -P -p $WHOAMI|grep -e " unix " -e " inet "|grep -e " TCP " -e " UDP "`


live free or die
harry