World Community Grid - View Thread - Cannot attach client to project. Proxy problem?

World Community Grid Forums

Category: Support

Forum: BOINC Agent Support

Thread: Cannot attach client to project. Proxy problem?

Quick Go »

No member browsing this thread

Thread Status: Active
Total posts in this thread: 14

[ ]

Author

This topic has been viewed 1648 times and has 13 replies

Former Member
Cruncher
Joined: May 22, 2018
Post Count: 0
Status: Offline


Re: Cannot attach client to project. Proxy problem?

All your logs indicate that it is a problem with your proxy. The normal stuff works, but when it tries to get data from secure.worldcommunitygrid.org, it fails.

As far as I know, SETI does not require a secure connection, so SETI working and WCG failing is entirely consistent with this.

You need to check your proxy and firewall settings. Try to connect again, then check the logs for errors. You may need to manually configure the proxy in the BOINC preferences. What proxy are you using?

[Apr 5, 2006 5:27:33 PM]

knekos
Cruncher
Joined: Apr 3, 2006
Post Count: 7
Status: Offline


Re: Cannot attach client to project. Proxy problem?

I used Ethereal to get some details and it looks that it is not so easy as I thought several minues ago. BOINC sometimes ignore authentication configuration in proxy setting. Two examples, first works fine, second was rejected by proxy. These are not WCG specific.

I miss authorization line in second request.


Proxy-Authorization: Basic cGV0cnNsYW46UHJhaGEyMzQ=

First request is when SIMAP boinc client sends data to server, OK. Second request were generated when I selected "update" on project page, FAILED as authentication is missing in proxy request.


POST http://boinc.bio.wzw.tum.de/boincsimap_cgi/cgi HTTP/1.1
Proxy-Authorization: Basic cGV0cnNsYW46UHJhaGEyMzQ=
User-Agent: BOINC client (windows_intelx86 5.02)
Host: boinc.bio.wzw.tum.de
Pragma: no-cache
Accept: */*
Referer: http://boinc.bio.wzw.tum.de/boincsimap_cgi/cgi
Proxy-Connection: Keep-Alive
Content-Type: application/x-www-form-urlencoded
Content-Length: 4366
Expect: 100-continue

======================================
POST http://setiboinc.ssl.berkeley.edu/sah_cgi/cgi HTTP/1.1
User-Agent: BOINC client (windows_intelx86 5.02)
Host: setiboinc.ssl.berkeley.edu
Pragma: no-cache
Accept: */*
Proxy-Connection: Keep-Alive
Content-Type: application/x-www-form-urlencoded
Content-Length: 3905
Expect: 100-continue
=====
HTTP/1.0 407 Proxy Authentication Required
Server: squid/2.5.STABLE5
Mime-Version: 1.0
Date: Wed, 05 Apr 2006 17:04:22 GMT
Content-Type: text/html
Content-Length: 2028
Expires: Wed, 05 Apr 2006 17:04:22 GMT
X-Squid-Error: ERR_CACHE_ACCESS_DENIED 0
Proxy-Authenticate: Basic realm="OFFICE Proxy Appliance"
X-Cache: MISS from proxy.office.lan
Proxy-Connection: close

<HTML><HEAD>
<TITLE>ERROR: Cache Access Denied</TITLE>
</HEAD>
<BODY>

Last example shows communication of WCG boinc client, FAILED. I miss authorization line there:


CONNECT secure.worldcommunitygrid.org:443 HTTP/1.0
Host: secure.worldcommunitygrid.org:443
User-Agent: BOINC client (windows_intelx86 5.02)
Proxy-Connection: Keep-Alive
Content-Type: application/x-www-form-urlencoded
=====
HTTP/1.0 407 Proxy Authentication Required
Server: squid/2.5.STABLE5
Mime-Version: 1.0
Date: Wed, 05 Apr 2006 16:57:38 GMT
Content-Type: text/html
Content-Length: 1992
Expires: Wed, 05 Apr 2006 16:57:38 GMT
X-Squid-Error: ERR_CACHE_ACCESS_DENIED 0
Proxy-Authenticate: Basic realm="OFFICE Proxy Appliance"
X-Cache: MISS from proxy.office.lan
Proxy-Connection: close

[Apr 5, 2006 5:27:54 PM]

Former Member
Cruncher
Joined: May 22, 2018
Post Count: 0
Status: Offline


Re: Cannot attach client to project. Proxy problem?

Thank you for the detailed information. I have looked a little closer, and it sounds like a proxy bug to me. BOINC shouldn't have to proxy authenticate with each request, merely with each connection. However, the BOINC folk are aware of the issue, and a fix is promised for a future release.

In the meantime, the suggested solution is to use a local proxy to forward to the network proxy with the correct authentication.

If you want to live on the wild side, I also understand that the fix has just been released to the alpha build. If you want to test it, I'm sure they will be grateful for the feedback. On the other hand, it's alpha...

[Apr 5, 2006 5:45:32 PM]

knreed
Former World Community Grid Tech
Joined: Nov 8, 2004
Post Count: 4504
Status: Offline
Project Badges:

180 day badge for Human Proteome Folding

90 day badge for Human Proteome Folding - Phase 2

45 day badge for Help Cure Muscular Dystrophy - Phase 2

90 day badge for Computing for Clean Water

14 day badge for Uncovering Genome Mysteries

45 day badge for Outsmart Ebola Together

180 day badge for FightAIDS@Home - Phase 2

1 year badge for Microbiome Immunity Project

1 year badge for Africa Rainfall Project

180 day badge for OpenPandemics - COVID-19


Re: Cannot attach client to project. Proxy problem?

Actually - if you don't mind trying the test build you can acquire it at this URL:

http://boinc.berkeley.edu/download.php?dev=1

This is up to the 5.3.31 release at the time I write this and the upload proxy problem was believed fixed in the 5.3.27 release. If you can download the latest and test it that would be great - we can let them know if the problem continues after this point.

thanks everyone for their help in this thread!

Kevin

[Apr 6, 2006 1:18:03 PM]

[ ]