what address I am logged through?

[ogniemi]

In the system there are 2 network ents configured (both can be used for remote access).

The will be executed script which will swap a desired IP address with a new one - I need to avoid terminal loss in case user logged to the system via the address which will be swapped by a new one.

has anyone idea how to perform such test?

I openssh session I can obtain the address with command:

$ env|grep ^SSH_CONNECTION|awk '{print $(NF-1)}'
10.122.22.16

But when I switch (su) root account (I need to switch with "su -" gettign root's env) the information is lost:

# env|grep ^SSH_CONNECTION|awk '{print $(NF-1)}'
#


Maybe someone knows some more reliable method for getting the address?

 

[hirschaj]

You can run a netstat command.

netstat -an | grep YourOriginatingIP

This should show you output similar to...
tcp4 0 0 aaa.aaa.aaa.aaa.22 xxx.xxx.xxx.xxx.yyyy ESTABLISHED

The aaa.aaa.aaa.aaa above would be the address you are connected through.

You can get the originating IP with this code....
ORIGIP=$(who am i | awk '{print $6}' | sed 's/(//' | sed 's/)//')

Jim Hirschauer

http://www.aixexpert.com

 

[d3vzero]

Hi Ogniemi,

As long as its a logged in session (using a tty) you could use something like the following.

mytty=`tty | sed 's^/dev/^^'`
who | grep " $mytty " | awk '{print $NF}' | tr -d '()'

Brgds.

____________________
Sometimes it pays to stay in bed on Monday, rather than spending the rest of the week debuging Mondays code.