On Nov 23, 2009, at 6:01 PM, Rolf Turner wrote:
On 24/11/2009, at 12:21 PM, Tom Wainwright wrote:
Hi,
My Fedora 11 linux (version 2.6.30.9-96.fc11.x86_64 #1 SMP Wed Nov
4 00:02:04
EST 2009) recently updated me to R-2.10.0, and help.start() is no
longer
working. I see in the release notes that R now uses an internal
web server to
autogenerate help pages. Here's what I'm getting:
IN R:
help.start()
starting httpd help server ... done
If '/usr/bin/xdg-open' is already running, it is *not*
restarted, and
you must switch to its window.
Otherwise, be patient ...
IN Firefox:
Firefox starts up, but gets a "connection refused" error:
While trying to retrieve the URL: http://127.0.0.1:11586/doc/html/index.html
The following error was encountered:
* Connection to 127.0.0.1 Failed
The system returned:
(111) Connection refused
I have checked all my firewall settings, and as far as I can tell
the connection
should be allowed. In fact, and unexpectedly, if I try on the
command line:
wget http://127.0.0.1:11586/doc/html/index.html
the index document is returned, so I know the R server is running
OK on that
port, but apparently refusing the connection to Firefox.
Has anyone else had a similar experience or have any wild guesses
about a solution?
I had a similar experience on my IMac (Mac OS X Version 10.4.11) ---
but the error
message made some mention of ``proxies''. The problem got fixed by
adjusting
the Firefox preferences. On the Mac the appropriate set of clicks is
Advanced --> Network --- Configure how Firefox connects to the
Internet (Settings)
Then (I think!) the key was to click on/activate ``Manual proxy
configuration'', and
then to make sure that ``127.0.0.1'' appears in the window labelled
``No Proxy for:''.
This is all Mac stuff, and it's not at all clear to me that it will
translate to the
Linux setting, but it *might* give you somewhere to start. Good luck.
The proxy issue is referenced in ?tools::startDynamicHelp, which is
linked from ?help.start:
"Details
...
The browser in use does need to be able to connect to the loopback
interface: occasionally it is set to use a proxy for HTTP on all
interfaces, which will not work – the solution is to add an exception
for 127.0.0.1.
..."
The Firefox configuration/preference dialogs are similar across OSs,
albeit on OSX they are at the top of the display rather than on the
Firefox application window frame as on other OSs. Here is link to the
Mozilla support site:
http://support.mozilla.com/en-US/kb/Options+window+-+Advanced+panel#Network_tab
HTH,
Marc Schwartz
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