In article <[email hidden]>
Martin Dann <[email hidden]> wrote:
<snip>
Quoted message said:I tried his, the first proxy failed with the same symptons as no proxy,
the second worked perfectly. (I assume the no proxy uses the first proxy
server or similar).
If you don't select a non-port-80 proxy your connection will go through
the default proxy for your area, because all port 80 traffic does -
that's why they're called transparent proxies. If there are multiple
proxies running under a balancing scheme you may find that you get a
connection or not depending on which server your request is routed
through - the obvious way to split the load on caching proxies puts all
traffic for a particular site through the same server, so websites
served by one proxy can be working fine while those served by another
will be inaccessible. If one of your ISP's local proxies goes down you
can reroute through another local one by setting its non-port-80 port
(e.g. 3128, 8080) explicitly in your proxy settings - it should connect
OK but won't have anything pre-cached because that server doesn't
normally serve that bit of internet.
Quoted message said:
Also as per Noel's suggestion, and a reply from wiggle, using the
numeric address 80.243.188.35 (without proxies) also works perfectly.
Wiggle recently changed ISPs, and the new numeric IP has not filtered
through to some of my DNSes.
That can be a problem if you're behind a caching DNS proxy that doesn't
refresh frequently. It can be worth switching DNS servers to get around
the problem until your regular servers catch up. These are the DNS
servers of Level 3 Inc., a major US network provider, that appear to be
open for general use:
4.2.2.1
4.2.2.2
4.2.2.3
4.2.2.4
4.2.2.5
4.2.2.6