Author Topic: February 7 - 17 Outage  (Read 2225 times)

JG

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February 7 - 17 Outage
« on: February 15, 2023, 12:01:55 pm »
My provider did some network changes the morning of February 7. This is not atypical - it happens once or twice a year, and they alert me a good two or three weeks in advance. It usually comes and goes without issue, except maybe I need to update DNS with a new IP for my domains at Godaddy.

This time though they did something I didn't know they'd do. They wrapped up their network behind an extra later of NAT (network address translation), so the IP my router said I possessed was different than what remote websites told me I was at. This broke incoming traffic. Traffic on port 80 (HTTP) would arrive at the external IP and not know how to route to my server because its a device I don't control, unlike my router which is set up to forward all port 80 requests to the server. I finally got traffic coming directly to my router, but then it was only working for me. Had to work with my provider to just totally disable NAT so it became visible to you fine folks.

I'm not a network engineer but do have a Computer Science degree (two, in fact, if you count a Master's degree distinct from Bachelor's) so I know enough about what should happen when things work right, but when things don't I have to research and experiment until I discover the solution. This one was rather challenging and took a few days to solve. Work, personal, and social demands keeping me from spending more than a little time on it in the last week, which delayed the fix.

Thanks to Moge for lending some remote testing support.
« Last Edit: February 17, 2023, 08:58:39 am by JG »

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Re: February 7 - 17 Outage
« Reply #1 on: February 17, 2023, 10:10:06 am »
Wow, I was wondering what had happened. Glad you got it all sorted out
BlackShadow

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Re: February 7 - 17 Outage
« Reply #2 on: February 20, 2023, 05:21:36 am »
Th for the information, I was worry on my end and as well the site going down
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JG

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Re: February 7 - 17 Outage
« Reply #3 on: February 20, 2023, 08:13:15 am »
If it were going to take any longer (past Friday) I was going to send an email to those who had posted in the last few months. I did this as soon as I could after the tornado a few years back, and we were down for about 3 weeks then.