Re: [Dorset] Follow Up to my WMT Webserver Problem
On Tuesday, 29 March 2022 11:59:39 BST Hamish McIntyre-Bhatty wrote: > Hmm interesting. Are you not having the SSH connection issues to the > webserver when it's at your house then? That was the issue we were > originally debugging, and shouldn't have anything to do with either > nodogsplash or Android if I understand things correctly. That's fixed. I had accidentally set up the wrong default route during some earlier work. I've now discovered a timeout value in the config file for nodogsplash. The is a unitless number for the timeout while a client is connecting (called PreAuthIdleTimeout) and another for after he has connected (called AuthIdleTimeout). The docs suggest that these are in minutes, but while I was debugging, one of the clients was de-authenticated after 120 seconds instead of 2 hours. This gave me the clue that the number represents seconds so I increased the PreAuthIdleTimeout from 2 to 20 and things seem a lot better now. If this works, I'll probably change both to the equivalent number of seconds for the original values, so 120 for PreAuthIdleTimeout and 7200 for AuthIdleTimeout. The numbers were originally chosen to give the Visitor 2 minutes to work out what to do initially and 2 hours on site before he had to reconnect. I also have an intermittent issue connecting to the WiFi in the first place, so I may be back :-) -- Terry Coles -- Next meeting: Online, Jitsi, Tuesday, 2022-05-04 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Follow Up to my WMT Webserver Problem
On 29/03/2022 11:37, Terry Coles wrote: After realising that the problem had nothing to do with the VPN Server, I've done further investigation and the most likely cause of this is the check that all Android phones have to do before they will connect to a WiFi Network. On occasions I've caught an error from 'connectivitycheck.gstatic.com/ generate_204'. Sometimes I'm getting 'net::ERR_CONNECTION_ABORTED' and sometimes I get 'net::ERR_TIMED_OUT'. I've posted a typical screenshot at: https://hadrian-way.co.uk/Misc/Android_Screenshot_2022-03-29.jpg The trouble is that during WiFi connection checks a message is sent to that URL by the phone and if the response isn't received, then Android believes that there is no Internet access and (normally) flags this up to the user with an option to ignore before connecting. It seems that nodogsplash somehow gets into the middle of this sometimes and the Welcome splash screen doesn't get displayed. Even so, a user 'in the know' can still connect to the content by browsing to the Home Page, so the connection is still made. Unfortunately there will be no Visitors to WMT who are in the know. The trouble is that development of nodogsplash seems to be moribund, the last commits being about 2 years ago and there have been no issues added since October last year. I therefore suspect that I can't get much help from that source. Has anyone any thoughts on this? As mentioned elsewhere this problem isn't new; we just had less understanding of it 2-3 years ago and it was less prevalent. Before that, I used to display a notice on site which gave instructions on how to browse to the Home Page, but this was deemed to be too complicated and nodogsplash was installed to make it easier.. I don't really want to have to go back to the original approach if possible. Hmm interesting. Are you not having the SSH connection issues to the webserver when it's at your house then? That was the issue we were originally debugging, and shouldn't have anything to do with either nodogsplash or Android if I understand things correctly. Hamish -- Next meeting: Online, Jitsi, Tuesday, 2022-05-04 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
[Dorset] Follow Up to my WMT Webserver Problem
After realising that the problem had nothing to do with the VPN Server, I've done further investigation and the most likely cause of this is the check that all Android phones have to do before they will connect to a WiFi Network. On occasions I've caught an error from 'connectivitycheck.gstatic.com/ generate_204'. Sometimes I'm getting 'net::ERR_CONNECTION_ABORTED' and sometimes I get 'net::ERR_TIMED_OUT'. I've posted a typical screenshot at: https://hadrian-way.co.uk/Misc/Android_Screenshot_2022-03-29.jpg The trouble is that during WiFi connection checks a message is sent to that URL by the phone and if the response isn't received, then Android believes that there is no Internet access and (normally) flags this up to the user with an option to ignore before connecting. It seems that nodogsplash somehow gets into the middle of this sometimes and the Welcome splash screen doesn't get displayed. Even so, a user 'in the know' can still connect to the content by browsing to the Home Page, so the connection is still made. Unfortunately there will be no Visitors to WMT who are in the know. The trouble is that development of nodogsplash seems to be moribund, the last commits being about 2 years ago and there have been no issues added since October last year. I therefore suspect that I can't get much help from that source. Has anyone any thoughts on this? As mentioned elsewhere this problem isn't new; we just had less understanding of it 2-3 years ago and it was less prevalent. Before that, I used to display a notice on site which gave instructions on how to browse to the Home Page, but this was deemed to be too complicated and nodogsplash was installed to make it easier.. I don't really want to have to go back to the original approach if possible. -- Terry Coles -- Next meeting: Online, Jitsi, Tuesday, 2022-05-04 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
