Detect Open Proxies

ahmad has asked for the wisdom of the Perl Monks concerning the following question:

Replies are listed 'Best First'.
Re: Detect Open Proxies by turo (Friar) on Dec 14, 2005 at 20:22 UTC
Umm, i think that you can launch n threads (1 for each port to be 'scanned') and make your requests simultaneusly... There are other similar post yet, maybe you can get some ideas from them: HTTP Proxy Detection and Proxy Detection In Perl. Regards. `perl -Te 'print map { chr((ord)-((10,20,2,7)[$i++])) } split //,"turo"'`	[reply] [d/l]
Re: Detect Open Proxies by merlyn (Sage) on Dec 14, 2005 at 21:58 UTC
My spider sense is tingling. Beware answering this question. -- Randal L. Schwartz, Perl hacker Be sure to read my standard disclaimer if this is a reply.	[reply]
Re^2: Detect Open Proxies by eric256 (Parson) on Dec 15, 2005 at 00:00 UTC
Could you elaborate? I'm not sure i see the harm. There are some legit reasons for wanting to test a list of IP's and see if they are still open proxies. ___________ Eric Hodges $_='y==QAe=e?y==QG@>@?iy==QVq?f?=a@iG?=QQ=Q?9'; s/(.)/ord($1)-50/eigs;tr/6123457/- \/\|\\\_\n/;print;	[reply]
Re^3: Detect Open Proxies by Celada (Monk) on Dec 15, 2005 at 04:33 UTC
That's like assuming people who use peer to peer software are all copyright violators. I certainly want to test my network to see if there are any vulnerabilities on it which need to be erradicated. (I know you didn't make the assumption of bad intentions, just pointed out the possibility. I prefer to hope people who ask questions here will use the answers ethically.)	[reply]
Re^3: Detect Open Proxies by merlyn (Sage) on Dec 15, 2005 at 01:39 UTC
Mostly, people want to see if a proxy is open because they want to circumvent some sort of policies with that address. -- Randal L. Schwartz, Perl hacker Be sure to read my standard disclaimer if this is a reply.	[reply]
Re^2: Detect Open Proxies by ahmad (Hermit) on Dec 15, 2005 at 01:00 UTC
Thanks for visitng the node i wrote i didn't mean any harm by this subject , i could take proxies manually one by one put them in my browser and test them therefore you can consider it as automating a job i don't need to test them for anything bad, i need them for a checking props , like in IRC chat if you used it my node is allmost harmless and if you see its not good enough to be here , ask for deletion ... i just want one reason to take it as a bad thing ??? at last Sorry for my weak english , if there's anything you can't understand in my words i will try my best explaining it to you	[reply]
Re^3: Detect Open Proxies by merlyn (Sage) on Dec 15, 2005 at 01:43 UTC
at last Sorry for my weak english , if there's anything you can't understand in my words i will try my best explaining it to you Well, you could start by explaining why you need to test weak proxies. That'd help me. If it's simply "I need to remove them" ok, But if it's "I need to expoit them" then I need a chance to object. -- Randal L. Schwartz, Perl hacker Be sure to read my standard disclaimer if this is a reply.	[reply]
Re^4: Detect Open Proxies by ahmad (Hermit) on Dec 15, 2005 at 13:39 UTC
Re^5: Detect Open Proxies by merlyn (Sage) on Dec 15, 2005 at 17:01 UTC
Some notes below your chosen depth have not been shown here
Re^2: Detect Open Proxies by beachbum (Beadle) on Dec 14, 2005 at 23:19 UTC
I've already used my rationed 2 votes of the day, but ++merlyn's spidey sense.	[reply]