Hi i use internet from behind a proxy server. I want to use nmap to scan some external hosts but iam not able to do that. It resolves the ip address but fails to access them reporting that the host may be down. I tried pinging the hosts but that also doesnt work
My env variable has the followinf format
http_proxy=username:secret@proxy.com:80
is it because my proxy is blocking icmp packets.. is there someway i can verify that??
thanks -- Puneet
http_proxy=username:secret@proxy.com:80
is it because my proxy is blocking icmp packets.. is there someway i can verify that??
That might be the case; your proxy is blocking icmp packets. If you are the proxy admin there are ways to find out. What are you running?
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On 1/22/06, Linux Rocks linux_rocks1@yahoo.com wrote:
http_proxy=username:secret@proxy.com:80
is it because my proxy is blocking icmp packets.. is there someway i can verify that??
That might be the case; your proxy is blocking icmp packets. If you are the proxy admin there are ways to find out. What are you running?
Since when did proxies start "proxy-ing" ICMP requests? The only way you can ping external hosts is if your gateway NATs you to the outside world.
Vivek
-- Registered Linux User #374218
Minister of Offense, Preserver of the Way of the Great Llama, Ambassador to India for the Republic of Loungevania
use nmap against your proxy and find loop holes :D
On 1/23/06, V P list307@gmail.com wrote:
On 1/22/06, Linux Rocks linux_rocks1@yahoo.com wrote:
http_proxy=username:secret@proxy.com:80
is it because my proxy is blocking icmp packets.. is there someway i can verify that??
That might be the case; your proxy is blocking icmp packets. If you are the proxy admin there are ways to find out. What are you running?
Since when did proxies start "proxy-ing" ICMP requests? The only way you can ping external hosts is if your gateway NATs you to the outside world.
Vivek
-- Registered Linux User #374218
Minister of Offense, Preserver of the Way of the Great Llama, Ambassador to India for the Republic of Loungevania
On Sunday 22 January 2006 7:09 pm, Puneet Lakhina wrote:
Hi i use internet from behind a proxy server. I want to use nmap to scan some external hosts but iam not able to do that. It resolves the ip address but fails to access them reporting that the host may be down. I tried pinging the hosts but that also doesnt work
A http proxy is an application proxy for redirecting http requests through an external ip. Ususally it will listen on 8080 (squid default 3128). It does not listen on other ports unless asked to and most certainly not for non http traffic. Pls read up http://www.tldp.org/HOWTO/Firewall-HOWTO.html http://squid.visolve.com/squid/configuration_manual_30.htm to save yourself unnecessary pain.
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Abhishek Sawant -
JTD -
Linux Rocks -
Puneet Lakhina -
V P