We just deployed a workaround that brought our site back up. 1. Find your DNS Target in heroku. It should end with .herokudns.com 2. Lookup the historical DNS record to get the IP addresses. You can find historical DNS records here: https://securitytrails.com/dns-trails 3. Replace your CNAME record in your DNS provider with A records that point to the IP addresses you just found. Your site should come back up shortly…
Issues with upstream DNS provider
91–100 of 159 posts
Re: Issues with upstream DNS provider
#92We just deployed a workaround that brought our site back up. 1. Find your DNS Target in heroku. It should end with .herokudns.com 2. Lookup the historical DNS record to get the IP addresses. You can find historical DNS records here: https://securitytrails.com/dns-trails 3. Replace your CNAME record in your DNS provider with A records that point to the IP addresses you just found. Your site should come back up shortly…
No historical DNS records on that site for us unfortunately, any other possible sites to check?
Re: Issues with upstream DNS provider
#93We just deployed a workaround that brought our site back up. 1. Find your DNS Target in heroku. It should end with .herokudns.com 2. Lookup the historical DNS record to get the IP addresses. You can find historical DNS records here: https://securitytrails.com/dns-trails 3. Replace your CNAME record in your DNS provider with A records that point to the IP addresses you just found. Your site should come back up shortly…
Re: Issues with upstream DNS provider
#94Earlier quoted context omitted.
You need to put in the herokudns.com address that the CNAME is pointing at – e.g. stark-wisteria-rnbgkawldfk6gq7m8308ytts.herokudns.com in our case.
For me the securitytrails.com website just crashes. I put my DNS target: "stark-horse-mrp4jeowu9yvwpnnma32x6hd.herokudns.com", clicked "Run Check" and it seems to redirect to a failed (no CSS) webpage. Anyone else experiencing this? EDIT: I MANAGED to make it work with this: https://www.nslookup.io/ Make sure to go through all the tabs at the top (Cloudflare DNS, Google DNS) - for me they were all "no A records found…
Re: Issues with upstream DNS provider
#95We just deployed a workaround that brought our site back up. 1. Find your DNS Target in heroku. It should end with .herokudns.com 2. Lookup the historical DNS record to get the IP addresses. You can find historical DNS records here: https://securitytrails.com/dns-trails 3. Replace your CNAME record in your DNS provider with A records that point to the IP addresses you just found. Your site should come back up shortly…
1. Create a new temporary subdomain in the Cloudflare DNS panel, e.g. "temp-heroku-resolve.your-domain.com", with IPs from the responses you get by querying Heroku's upstream provider directly (`dig @1.1.1.1 +trace your-app.herokuapp.com`). Make them unproxied (grey cloud) A records with a 30s TTL.
2. Change your root CNAME to point at "temp-heroku-resolve.your-domain.com"
To undo, just reverse these steps and point your root CNAME back at Heroku.
Re: Issues with upstream DNS provider
#96We just deployed a workaround that brought our site back up. 1. Find your DNS Target in heroku. It should end with .herokudns.com 2. Lookup the historical DNS record to get the IP addresses. You can find historical DNS records here: https://securitytrails.com/dns-trails 3. Replace your CNAME record in your DNS provider with A records that point to the IP addresses you just found. Your site should come back up shortly…
Hi all, deleting a root CNAME record and adding a new A record on Cloudflare was too risky for us, with its potential to impact external DNS responses, so we took the following steps instead: 1. Create a new temporary subdomain in the Cloudflare DNS panel, e.g. "temp-heroku-resolve.your-domain.com", with IPs from the responses you get by querying Heroku's upstream provider directly (`dig @1.1.1.1 +trace your-app.hero…
(not trying to be snarky, trying to understand)
Re: Issues with upstream DNS provider
#97Earlier quoted context omitted.
Yes, i'm also done with Heroku. What alternative do you recommend?
Left Heroku for Fly.io a year or so ago and have been very happy.
Re: Issues with upstream DNS provider
#98We just deployed a workaround that brought our site back up. 1. Find your DNS Target in heroku. It should end with .herokudns.com 2. Lookup the historical DNS record to get the IP addresses. You can find historical DNS records here: https://securitytrails.com/dns-trails 3. Replace your CNAME record in your DNS provider with A records that point to the IP addresses you just found. Your site should come back up shortly…
Re: Issues with upstream DNS provider
#99We just deployed a workaround that brought our site back up. 1. Find your DNS Target in heroku. It should end with .herokudns.com 2. Lookup the historical DNS record to get the IP addresses. You can find historical DNS records here: https://securitytrails.com/dns-trails 3. Replace your CNAME record in your DNS provider with A records that point to the IP addresses you just found. Your site should come back up shortly…