IP Server Blocked at Work

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IP Server Blocked at Work

Postby dkeane » Tue Mar 06, 2018 7:14 pm

I often have difficultly downloading GPU WUs depending upon what server i am assigned. Often I will get a message such as this:

17:14:15:WU01:FS00:Connecting to 171.67.108.45:80
17:14:15:WU01:FS00:Assigned to work server 140.163.4.231
17:14:15:WU01:FS00:Requesting new work unit for slot 00: READY gpu:1:GP104 [GeForce GTX 1070 Ti] 8186 from 140.163.4.231
17:14:15:WU01:FS00:Connecting to 140.163.4.231:8080
17:14:17:ERROR:WU00:FS00:Exception: 10002: Received short response, expected 512 bytes, got 0

Other times, no issue:

17:15:35:WU01:FS00:Connecting to 171.67.108.45:80
17:15:35:WU01:FS00:Assigned to work server 171.67.108.157
17:15:35:WU01:FS00:Requesting new work unit for slot 00: READY gpu:1:GP104 [GeForce GTX 1070 Ti] 8186 from 171.67.108.157
17:15:35:WU01:FS00:Connecting to 171.67.108.157:8080
17:15:37:WU01:FS00:Downloading 8.83MiB
17:15:39:WU01:FS00:Download complete

I believe this is due to our firewall at work blocking certain work server IP addresses, but can't be sure. If it is - is there a known set of IP addresses that I can use as exceptions for the firewall? Thanks all.
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Re: IP Server Blocked at Work

Postby toTOW » Tue Mar 06, 2018 7:24 pm

All the servers should be listed here : http://fah-web.stanford.edu/pybeta/serverstat.html
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Re: IP Server Blocked at Work

Postby Joe_H » Tue Mar 06, 2018 9:44 pm

There are at least two separate issues that you could be running into. By default the client accesses servers over port 8080, and falls back to trying on port 80. Many corporate firewalls block port 8080. Most of the folding servers will respond on port 80, but that sometimes turns off, or for some servers it is not usable because of their campus firewall settings.

As mentioned by toTOW, the addresses of most of the WS and CS systems are listed on the Server Status page. There are a few newer servers which do not show there. But there is enough information there to show the address ranges used for these servers. The Assignment Servers are not listed there, but are in the same address ranges as other servers at Stanford.

Finally, some firewall and anti-malware settings block HTTP traffic that is not between "known browsers" and outside sites. "Known browsers" would be software such as Internet Explore, Firefox, Safari, Opera, Chrome and the like. If that is the case, then the FAHClient software would also need to be added to the list of "browsers" allowed to do HTTP transfers over ports 80 and 8080.
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Re: IP Server Blocked at Work

Postby dkeane » Tue Mar 06, 2018 9:48 pm

Excellent information. The port may not be the issue, as I don't see any difference between the ports when a WU is downloaded or it isn't.

I'll talk to IT and see if they can add the necessary exceptions.
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Re: IP Server Blocked at Work

Postby dkeane » Tue Apr 03, 2018 1:07 pm

No luck. IT at work isn't willing to make sure those server IP addresses aren't blocked. Until I figure out a work around, I'm going to be dead in the water half the time due to not being able to contact a server. Would be so much simpler on my end if everything came from one IP.

I was wondering if it would be possible to have the folding client go through a local less secure wifi network to get the work units? Anyone know of a way to force folding to use the wireless over the wired? Would be a PITA to have to disable the wired network adapter every time I wanted to get a WU.
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Re: IP Server Blocked at Work

Postby bruce » Tue Apr 03, 2018 4:52 pm

FAH does not choose which network path to use. If your system finds a network connection by way of WiFi or by way of Ethernet, that's up to how your operating system is configured. If the default path happens to have limitations established by your business's networking policies and that limits your use of FAH, that's up to your business. Continue talking to your business's networking people.

Remember the EULA specifically limits your use of systems you don't own unless you have (written) permission. FAH doesn't want you to risk being fired -- and that has happened a few times.
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Re: IP Server Blocked at Work

Postby dkeane » Tue Apr 03, 2018 5:21 pm

Small firm where I'm a VP and the owners are well aware of folding on my work machine. I could just actually tell IT to do it, but I'm not interested in throwing a bit of weight around on something that doesn't have an express use for work.
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Re: IP Server Blocked at Work

Postby Yavanius » Mon May 07, 2018 5:13 am

You need to bring them lunch, something tasty, day and have a friendly chat with them. They'll be more amicable to helping you out one way or another.
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Re: IP Server Blocked at Work

Postby foldy » Mon May 07, 2018 8:38 am

dkeane wrote:I was wondering if it would be possible to have the folding client go through a local less secure wifi network to get the work units? Anyone know of a way to force folding to use the wireless over the wired? Would be a PITA to have to disable the wired network adapter every time I wanted to get a WU.

That should be possible if you enter the wireless gateway in folding@home proxy settings.
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Re: IP Server Blocked at Work

Postby bruce » Wed May 16, 2018 4:36 pm

dkeane wrote:Small firm where I'm a VP and the owners are well aware of folding on my work machine. I could just actually tell IT to do it, but I'm not interested in throwing a bit of weight around on something that doesn't have an express use for work.

That's understandable, but it's also the reason we recommend getting written permission. You're obviously somewhat hesitant to bring up the issue with IT which means you're somewhat hesitant that maybe it's against some (unwritten?) company policy. We don't want you to get fired for using a company owned computer for non-work-related activities.
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Re: IP Server Blocked at Work

Postby Yavanius » Mon May 21, 2018 4:30 am

It might be possible IT doesn't want to get to an issue where someone else wants a port opened and they point back that dk had ports opened up for something nothing work related (however benevolent his intentions might be). It could backfire on him if IT says no and word gets to owners that dk got special treatment being VP.

dk, your best bet would be to ask them why they don't want to open the ports and see where they are coming from. Let them know this isn't the VP asking in an official capacity, it's you personally asking. Maybe they had a situation once before where they experienced something negative from ports being opened. Have you explained what the Folding research is about? Try focusing on the end result (cancer, diseases, etc) rather than the folding itself.

I would not try to circumvent the network while on work machines. VP or not, that's grounds for dismissal if the IT admin goes the owners and tells them you circumvented the network security on work machines.
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Re: IP Server Blocked at Work

Postby bruce » Mon May 21, 2018 5:47 am

FAH is doing some development work which may enable your client to download/upload WUs soon. That won't change the fact that we've mentioned that you risk being fired and we wouldn't want that to happen.
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