pxytest News

I've received some great feedback and suggestions, which I plan to implement. Here is the current list, in no particular order:

  • SOCKS 4A - I've been told there are some problems detecting an open SOCKS 4A proxy, altough I don't see why that should be the case and I've been unable to duplicate it. I'd welcome any further info.
  • HTTP POST - When I first wrote pxytest I thought the HTTP POST command was not a significant problem. Wow, was I ever wrong. The stats I see comming from the BOPM show it as the second most common spam proxy type. So, I do plan to add it, but it's going to be a little ugly. The way this test has to operate (transmit blindly, and check repsonse at the very end) doesn't fit well into the existing framework. Also, I'm probably going to rename the existing http test to http-connect, to disambiguate from http-post.
  • Quiet Switch - I've received a request to make pxytest run less verbosely, and that sounds like a good idea to me.
  • Reduce Delays - There are some cases where there are very long delays, waiting for timeouts on an unresponsive test host. These are a particular problem on port 23 tests. I've worked on this issue before, and I want to see if I can come up with some other clever ways of accelerating these tests.
  • False Negatives - Sometimes an open proxy is so overloaded, so badly abused, that pxytest can't get it to respond and declares it closed. I'm thinking about ways to detect and handle this situation, without much progress. I've been looking at low-level packet dumps, and I'm somewhat stumped.

A couple folks have reported that if the mail server used by the test doesn't give the usual 220 response (that's the SMTP code for "Alrighty, then!") the test will fail. Well, yeah. You'll either need to switch to a mail server that wants to accept mail normally or hack the source to recognize this special case.

Thanks to Anthony Edwards, Bob Poortinga, Susan Tait and everybody else for their suggestions. I welcome any feedback on the program or my plans. Leave a comment or email me.

Comments

Comments have been closed for this entry.

re: pxytest News

Chip,

Here are a coupld of ports you should consider adding:

socks 1180/tcp # socks4 socks5 Wingate-3.0
cisco-wingate 1181/tcp # Wingate-3.0

If I come across more, I'll let you know.

re: pxytest News

Please note, some networks are router blocking external port 1080 traffic, such as ATTBI.COM. This means that open AnalogX proxies will not be detected at this port. Please consider including port 6588 as a default port.

re: pxytest News

Novell, Callbook, port 2000 please ^_^;;