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Date:      Tue, 25 Dec 2012 11:52:06 -0800
From:      Garrett Cooper <yanegomi@gmail.com>
To:        Yuri <yuri@rawbw.com>
Cc:        freebsd-net@freebsd.org
Subject:   Re: Why chrome and firefox can't connect to almost any SOCKS4 proxy?
Message-ID:  <CAGH67wTwu7sb=JPGWK0ELj7r0PZv9gnfwECO_2aUc_hUf47vkQ@mail.gmail.com>
In-Reply-To: <CAGH67wRipaHgtznXcZuTZDg9HARp37D%2Bt9zWRQNJiVvfKV__NQ@mail.gmail.com>
References:  <50D94D04.90302@rawbw.com> <CAGH67wRipaHgtznXcZuTZDg9HARp37D%2Bt9zWRQNJiVvfKV__NQ@mail.gmail.com>

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On Tue, Dec 25, 2012 at 11:48 AM, Garrett Cooper <yanegomi@gmail.com> wrote:
> On Mon, Dec 24, 2012 at 10:51 PM, Yuri <yuri@rawbw.com> wrote:
>> I tried many SOCKS4 proxies from
>> http://sockslist.net/proxy/server-socks-hide-ip-address and mostly I am
>> getting this error:
>> Error 120 (net::ERR_SOCKS_CONNECTION_FAILED): Unknown error.
>> Only one of them succeeded.
>> SOCKS5 however works ok.
>>
>> On firefox I am getting similar symptoms, it can't connect to most SOCKS4
>> proxies and can connect to SOCKS5.
>>
>> What might be a problem? I was thinking that maybe some system or port
>> library has some issue related to SOCKS4? Maybe libssl.so ?
>
>     Try trussing/ktrace'ing the process to see if you can get a bit
> more diagnostic information. If that doesn't yield anything helpful,
> you might want to consider possibly going to the forums to ask this
> question because this seems like something that is application
> specific that wouldn't necessarily be well tied to -net@.
> HTH,
> -Garrett

Also, check for firewalls/filtering being done by your ISP and hops in
the middle, make sure there's support on the server end for SOCKS4,
etc.
-Garrett



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