ip in text file?

acid_kewpie · 12-01-2001, 05:56 AM

hi hi, anyone know if the ip address of a dhcp interface is stored in plain text anywhere? is there any other way to find my gateway's external ip from an internal box? i've an nfs share of the gateways whole fs, so it has to be there somewhere... just not found it yet.

ta

hurtsman · 12-02-2001, 04:31 AM

No.1 you can ssh or telnet external host, then run command "w", where you will find out your external ip.
No. 2 you ssh or telnet firewall box, then run command "ifconfig", then see.

acid_kewpie · 12-02-2001, 10:42 AM

erm.. well yeah.. that's obvious, i want a way to specifally avoid logging in and such like. so i want it in a text file so i can access it internally. it's listed as hex in /proc/net/route, but i don't want to struggle to convert it to decimal in a script or a c program.

and w is to show what users are logged in, it doesn't dislpay the ip's.

dangel · 12-02-2001, 08:35 PM

why not just create a script that parses the information out and dump it to a file? put it in a cron job maybe?

i'm not exactly sure what your trying to accomplish - end result i mean, but seems the easiest solution.

mcleodnine · 12-02-2001, 10:47 PM

dhcpcd dumps my lease info to /var/state/dhcp/dhcp-et0.info

A quick trip to gibby's portscanner (www.grc.com) will show you your external IP before you start the scan.

acid_kewpie · 12-03-2001, 05:00 AM

ahh perfect mcleodnine.

Don't suppose you've ever seen 'Centurions'? whenever you post i think of Jake McCloud from there, with his strap-on jet-plane thing.

ahh forget it ;-)

hurtsman · 12-03-2001, 05:48 AM

hi,
what you say is right. But i mean that when you login box out of firewall box, then use command "w". Donot forget that "w" can show where you are from.
i test other way to get external ip of firewall. that is to use sniffer tool. you run "sniffer -i ",then show how your LAN connect .

hi, what you say dhcp is dhcpd or dhcpcd, one server and one client. if server, you read "/etc/dhcpd.conf " and "/var/lib/dhcpd/dhcpd.lease" . if client,you read "/etc/dhcpcd/dhcpcd-eth0.info".

hurtsman
Dec 3,2001